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DSSAT User's Guide Vol. 3 - Projetos e Redes do Macroprograma 1

1. XCREATE gt DRIVER SEQUENCELST SEQUENCE PROGRAM PROGRAM ANALYSIS OR PROGRAM EBAF1101 SQX EBAF1101 SQS EBAF1101 SQR ASCII y TEXT EDITOR UFGA7801 SQX CROP L 0 MODELS SUMMARY ANALYSIS OUTPUT RESULTS Y FILES FILES Y OUTPUT FILES STEP 1 CREATE A FILEX STEP 2 RUN THE EXPERIMENT STEP 3 ANALYZE MODEL OUTPUTS r NOTES FILEX are crop model input files listed in EXP LST Summary Output Files contain model outputs and are listed in SEQUENCE LST ANALYSIS RESULTS FILES contain the results of all analyses carried out DSSATPRO FLE contains path information for all components of the DSSAT v3 PRICE FILES for sequence analysis have the extension PRQ FiGURE 1 STEPS IN SEQUENCE ANALYSIS e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 11 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 72 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence
2. PART OF THE DEFAULT SEQUENCE PRICE Fite DEFA ULT PRQ SCOS 00 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 0 0200 02 CC 9 Q 6 RESM 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 gt gt gt PCOS 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 PCOS 00 00 00 PFER 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 PFER 00 00 00 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 115 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis If you specify a large number more than three of stochastic prices and costs and your computer is not one of the fastest the economic analysis program may take a long time to run Usually it is best to use only a few stochastic prices and costs The price cost file is sectioned by crop as shown in Table 5 You may have differ ent sections for different sequence components of the same crop thus MZ1 and MZ2 might share the same set of prices and costs or you could have two sec t
3. COEFFICIENT OF VARIATION PLOT OF HAR YIELD kg ha 71 120 0 Ls n 4 I L 1 i 90 0 2 1 L fi w FON I K V TK Nw O8 oe 60 0 t 5 Nos al t gt S d 30 0 L L 1917 1923 1929 1935 YEAR HWAH SCREEN 16 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 102 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence indication of changes in relative variability through time Screen 16 on previous page shows an example for maize yield Note that although mean yield decreased through time relative variability as measured by the coefficient of variation increased markedly Return to the Graphics Regression main menu Screen 10 by pressing any key OpTION 6 REGRESSION MENU Choose the Regression Menu option in Screen 10 The screen that appears Screen 17 below gives you the option of calculating a linear or exponential regression on the means of the seasonal output variable The regression line with the original means can be plotted as can the residuals from the regression If you have not yet read the nAppendix then please do so now It cannot be over emphasized that the
4. REGRESSION PLOT OF HAR YIELD kg ha 21 2 500k 4 2 000k 1 500 L n 4 2 L a z 4 aN oy 4 5 p cB Tl H 1 000k m 8 n d we 3 L SS 4 I ss a n l 0 500k 5 x c L gt s L u 4 1910 1918 1926 1934 CI 1 Yield at harvest kg dm ha SCREEN 19 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 106 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Plot the Regression Residuals Nowchoose to plot the residuals Screen 20 on following page These are the deviations of the points Y from the fitted line dy Y Y y m where Y is the regressed value of output and Y is the simulated value from the crop model No trends or patterns should be discernible in the residuals such patterns are evidence of serious violations of the assumption of statistical independence in particu lar and the resulting regression should be discarded or treated with caution To sum up despite the patina of objectivity that may be given to your simulated results using regression to find trends you should exercise great care in interpreting the outputs from the regression option As noted above there is no substitute for
5. DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 166 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan The VIEW FILE button displays the file in conjunction with a ruler as shown in Screen 19 If a format is being edited during an Import operation and the Preview formats option is enabled with a tick mark in the Import Options dialog box see Screen 24 then a Preview Format dialog box Screen 20 below will be presented when either the OK or the SAVE button is pressed The Preview Format dialog box displays a file viewer which shows the first 50 records of the weather file The columns where the program using the current format will look for variables are labeled and highlighted CONVERT FORMAT The Convert format option found in the IMPORT EXPORT pull down menu see Screen 17 allows you to convert a weather data file from one format and set of units to another without defining a weather station A permanent archive file for the raw data is not retained and range checking and data fill are not performed When converting a weather file format the user will be prompted to 1 select the target file to convert from 2 select a format name for the target file 3 select the destination file name to convert to and 4 select a format fo
6. Solar radiation The default is to use the generic method select ed above alternative is to estimate solar radiation using the Angstrom coefficients in the climate file Sunshine hours data must be available in the raw archive file to use this method Short 7 Day data gaps The default is to use the generic data fill method given above An alternative is to use a 10 day running mean for gaps that are less than 7 days long This may give a more realistic stimate of the actual average values for that period than using long term means For data gaps longer than 7 days the above data fill methods will still be used Model for weather generation The default is to use the SIMMETEO model since it requires only the monthly means in the cli mate file The WGEN model provides better esti mates of variability if it has been parameter ized from at least five years of good quality daily data Model parameters must be in the climate file to use this option see Generator section DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 176 WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan The DSSAT v3 modifications of WGEN SIMMETEO use standard deviations rather than coefficients of variation w
7. CWAM TOPS WT kg ha HWAM MAT YIELD kg ha HWAH HAR YIELD kg ha BWAH BYPRODUCT kg ha HWUM WEIGHT mg unit NUMBER m2 H UM NUMBE unit IR M IRRIG APPS 4 IRCM IRRIG mm PRCM PRECIP mm ETCM ET TOTAL mm ROCM RUNOFF mm DRCM DRAINAGE mm SWXM EXTR WATER cm NI M NITR APPL f NICM TOT N APP kg ha NFXM N FIX kg ha NUCM N UPTAKE kg ha NLCM N LEACH kg ha NIAM SOIL IN N kg ha CNAM CROP N kg ha GNAM PRODUCT N kg ha RECM RESIDUE kg ha ONAM ORGANIC N kg ha OCAM ORGANIC C t ha PO M P APPL POCM TOT P APP kg ha CPAM CROP P kg ha SPAM SOIL P kg ha EXPERIMENTAL DATA CODES Simulation start date YRDOY Planting date YRDOY Anthesis date YRDOY Physiol maturity date YRDOY Harvest date YRDOY Planting material wt kg dm ha Tops wt at maturity kg dm ha Yield at maturity kg dm ha Yield at harvest kg dm ha By product harvest kg dm ha Wt at maturity mg dm unit Number at maturity no m2 Number at maturity no unit Irrigation applications no Season irrigation mm Season precipitation mm Season evapotranspiration mm Season surface runoff mm Season water drainage mm Extr water at maturity cm Number of N applications no Total inorganic N appl kg ha N fixed during season kg ha N uptake during season kg ha N leached during season kg ha Soil inor N at maturity kg ha Tops N at maturity kg ha Product N at maturity kg
8. eer in the following treatments Accept all treatments Press Y Generally it is preferable to work first with few experiments and or treatments then to proceed using the coefficients so determined SCREEN 8 10 In the dialog box next presented type an at the prompt Selection of runs for this genotype complete because you want to set up another sequence of calculation for the genotype in question but with different initial coefficients Screen 5 will again be presented see Step 5 Change one of the coefficient s by 20 to 3076 as described under Step 5 When the prompt Selection of runs for this genotype complete reappears respond with N again to bring up the initial genotype coefficients list but this time decrease the appropriate coefficient by 10 to 20 NOTE Setting an array of initial values for particular coefficient s is necessary to develop data for examination of variation in the values fitted for the varying coeffi cient s Now at the prompt Selection of runs for this genotype complete type Y to proceed with the genotype coefficient calculation The calculator will run the appropriate crop model and data indicating the goodness of fit between predicted and actual data will be displayed on the screen as calcula tions proceed For each set of calculations final coefficient values and end point information are stored in files
9. DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 142 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan L mouse button R mouse button TAB lt 5 gt lt gt lt gt lt END gt Down arrow Up arrow lt CTRL gt right arrow lt CTRL gt left arrow lt gt lt gt lt ALT gt lt Q gt Accepts highlighted choice and performs function For most dialog boxes the default option is OK For data entry dia log boxe ing the Left but S pressing the ENTER key is equivalent to press lt gt key ton on the computer mouse single click high lights an item Double click is equivalent to pressing the ENTER ove to ove to ove to ove to Same as an input list dia history Same as boxes Move to Move to Click on native t Exit Qu Exit Qu key Right button on the computer mouse Equivalent to CANCEL the next data entry cell the previous data entry cell first data entry cell the last data entry cell using TAB key in data entry dialog boxes When line shows a down arrow icon activates history or log box with choices listed for selection The dialog box displays previou
10. SCREEN 4 dates where the dates are in year and day of year format In some cases the date may be year and month see the Graphics Menu section in Chapter 4 or just the year see the Generate Menu section in Chapter 4 The time period section may also be part of another larger dialog box An example of the Time Period dialog box with year and day of year format is given in Screen 5 below Time Period Day of Year ear ScREEN 5 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 146 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan STEPS FOR CLEANING AND CONVERTING W EATHER DATA One of the main uses of WeatherMan is to develop complete daily weather data sets from raw data with missing data and incorrect values Several steps are required to complete this process and obtain weather data files that are complete and in the desired format The minimum requirements for cleaning and refor matting data are given in Table 2 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 147 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM TABLE
11. and ENDPOINT TMP respectively so that these are available for subsequent viewing DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 215 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff G C CALCULATOR INDIVIDUAL VERSION 3 CROP Maize MODEL GECER930 All calculations completed PRESS C to view COEFFICIENTS E to view END POINTS 0 to view OUTPUTS to calculate AVERAGES ENTER to proceed to the next menu It is generally desirable to examine the endpoints If the fit was not good the process should be repeated with new initial values SCREEN 9 11 When calculations are completed press the lt C gt key in Screen 9 above to view the array of coefficients calculated for each set of calculations in the COEFE TMP file Screen 10 below While viewing these final coefficient values pay particular attention to the codes assigned by GenCalc if at all to each of the calculated genotype coefficients see Appendix C for a description of these codes Growth coefficients will have a U immediately following the numerical value This indicates that the particular coefficient was not MAIZE COEFFICIENTS NGENO EXPMENT RUN T ETYPE 2 P5 G2 G3 PHINT 190063 IBSI80012 1 1 180001
12. SCREEN 13 The dialog box shown in Screen 13 applies to the data directory where the daily weather data files are kept The CHDIR button will change the directory tree to display the directories below the one that is highlighted The REVERT button restores the tree to the one presented on entry into the dialog box The OK button accepts the highlighted directory as the new data directory The down arrow on the first line activates the history list of previously chosen data directories The Change dir menu option is equivalent to changing the weather data directory under the OPTIONS Directories menus DOS SHELL Selecting the Dos shell menu option allows you to leave the WeatherMan pro gram temporarily without removing the program from the computer s RAM e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 159 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM This function is useful for performing DOS functions like RENAME DELETE or COPY files When you have finished any of these functions and wish to return to the WeatherMan program type EXIT at the DOS prompt ABOUT The About option displays additional information about the WeatherMan pro gram The opening screen gives the credits Introductory information about the program can be acce
13. ae 7 _ 1 3 5 7 9 11 1 3 5 7 9 11 YEAR YEAR M MEDIAN MINIMUM FiGuRE SIMULATED SEQUENCE OUTPUTS SHOWING INCREASINGLY ERRATIC PLoTs AS REPLICATES FALL BELOW 100 20 10 AND 5 RESPECTIVELY over time is sufficient to say with certainty this is not a viable sequence Other situations may not be so cut and dried As noted in the introduction to this document the sequencing capabilities of the DSSAT v3 crop models have not been extensively tested and this is another rea son for exhibiting caution with regard to the conclusions you draw from any sim ulated sequence experiment DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 136 VOLUME 3 3 J W HANSEN PICKERING J W JONES WELLS H CHAN D C GODWIN UNIVERSITY OF FLORIDA M AssEY UNIVERSITY UNIVERSITY OF HAWAII IN TERN ATION AL FERTILIZER DEVELO PM EN T C EN TER INTERNATIONAL BENCHMARK SITES ETW ORK FOR AGRO TECHN O LO GY TRANSFER WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 138 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Weathe
14. Calculate parameters Generate data SCREEN 28 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume Lid WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM r I 1 Calculate Parameters Model gt WGEN generator parameter SIMMETEO monthly means Both sets of parameters Day of Year year Starting date 1980 1 1987 365 SCREEN 29 calculate the same statistics If the monthly means in the climate file are from a longer and more reliable record than the daily data the user should not estimate SIMMETEO s parameters since the monthly means in the climate file will be over written Estimating generator parameters is a reasonable option if there are suffi cient reliable data in the raw archive file or if there are no available climate data The user is warned if there are less than five years of reliable data in the archive file GENERATE DATA The Generate data menu item accesses the Generate Weather Data dialog box which is shown in Screen 30 on following page Generated data are output to an archive file called Station GEN WTD This file is usually treated as a temporary file for the duration of the WeatherMan session see the following section entitle
15. DSSAT Version 3 0 Crop Sequencing Analysis Input File Analysis Experiment Code EBAF 11 01 Number of runs 900 Number of reps B 15 Starting year 1911 Ending year 1941 Runs per rep 60 Runs per rotation 2 Crop Codes Used 21 FAL F1 Help Press any key to continue 71440 Mem SCREEN 6 ment In some rotations you may have 2 or more fallow components one between maize and beans and another between beans and maize for example In both biological and economic terms these fallows may be quite different and need to be treated separately On pressing any key to continue the main menu of the analysis program appears again Screen 4 The items in this menu are illustrated in turn ANALYZE BIOPHYSICAL VARIABLES On choosing the main menu option Analyze Biophysical Variables in Screen 4 with the mouse or cursor keys a list of the variables available for analysis appears Screen 7 on following page This is a listing of all the 35 output vari ables written to the summary output file You can scroll up and down this list using the lt gt and lt gt arrow keys on the keyboard Choose the variable HAR YIELD kg ha in Screen 7 by placing the cursor bar over the variable in the list and pressing the lt ENTER gt key The next screen presented Screen 8 on following page asks you to choose a crop code for analysis Choose the MZ
16. FicunE 2 MENU OPTIONS FOR THE SEASONAL ANALYSIS PROGRAM 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 23 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas Formal strategy evaluation of all treatments if required is carried out using mean Gini stochastic dominance see Appendix B herein Any number of summary output files can be analyzed during one session with the program The user can also control the type and format of hardcopy outputs from the graphics produced While these analyses are being performed results are written to a results file At the completion of the session the user can access this file and use the data con tained within in any way required For example it could be edited for importing into a graphics spreadsheet or statistics program AN EXAMPLE The Seasonal Analysis program is called from the ANALYSES main menu of the DSSAT v3 Shell Screen 4 below and then from the Seasonal Analyze sub menus After an introductory screen the main menu appears on Screen 5 on fol lowing page First you must select a cropping season file to analyze i e a summary output file from a previously run simulation On selecting this item the program searches SEASONAL LST the lis
17. Once past Screen 2 the driver will issue appropriate commands and call up the crop model s The initial model produced screen warns the user not to touch the keyboard Once simulations are under way each model run is summarized on the screen so that the user can chart progress of the experiment Screen 3 below shows the first 20 simulations associated with model input file UFGA7812 SNX Experiments with many treatments and or many replicates may take a great deal of time to simulate especially on older personal computers No keyboard input should be made unless an error occurs until the simulations have finished To abort the simulation runs before they have finished press the lt ESC gt key or lt CTRL BREAK gt For each FILEX simulated the driver updates or creates a listing file which stores the names of the summary results files in similar fashion to EXP LST which stores the names of available FILEXs in the current directory This file SEASON AL LST is of the same format Table 3 and is used by the analysis program described in the next section Two other messages may appear on the final screen RUN TRT FLO TOPWT SEEDW TRAIN CET PESW TNUP TNLC TNLF TSON TSOC dap dap kg ha kg ha mm mm mm mm kg ha kg ha t ha 1 SB 1 47 116 5880 2905 849 0 446 141 18 21 27 3836 39 2 SB 1 46 118 7489 3565 834 0 509 84 18 19 27 3838 39 3 SB 1 46 116 6692 3166 904 0 489 117 18 21 27 3836 39 45 1 46 121 5931 2939 50
18. DSSAT v3 192 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan REFEREN C ES Borland 1993 Borland Pascal Version 7 Borland International Scotts Valley California Conway H M Jr S L May Jr and E Armstrong Jr 1963 The Weather Handbook Conway Publications Atlanta GA Geng S J S Auburn E Brandsetter and B Li 1988 A program to simulate metero logical variables Documentation for SIMMETEO Agronomy Progress report No 204 Dept of Agronomy and Range Sci Univ of California Davis CA Geng S and J S Auburn 1986 Weather simulation models based on summaries of long term data In Intl Symp on Impact of Weather Parameters on the Growth and Yield of Rice April 7 10 International Rice Research Institute Los Banos Philippines Hunt L A J W Jones Thornton Hoogenboom D T Imamura G Y Tsuji and U Singh 1994 Accessing data models and application programs In Tsuji G Y Uehara and S Balas eds DSSAT v3 Vol 1 3 University of Hawaii Honolulu HI Jones J W L A Hunt G Hoogenboom D C Godwin U Singh G Y Tsuji N Pickering Thornton W T Bowen K J Boote and J T Ritchie 1994 Input and output files In Tsuji G Y G Uehara and S Balas eds DSSAT v3 Vol 2 1 University of Hawaii Honolulu HI NOAA 1974 Climate of the States Water Information Center National
19. DSSAT v3 Volume 3 CHAPTER TW O CREATING MODEL IN PUT FILES FOR SEQUENCE ANALYSIS The utility program XCreate that is provided with the DSSAT v3 software can be used to create model input files for running sequence analyses see Volume 1 4 Imamura 1994 of this book for a description of the XCreate program These model input files are referred to as FILEXs see Volume 2 1 Jones et al 1994 of this book for a description of this file Alternatively these files can be created using an ASCII text editor The advantage of using the program XCreate is that the experiment listing file EXP LST see Volume 2 1 Jones et al 1994 of this book for a description of this file is updated automatically If you create a sequence analysis FILEX yourself you must either update EXP LST or run the File Manager Utility program accessed using the Sequence Inputs menu items of the DSSAT v3 Shell see Volume 1 3 Hunt et al 1994 of this book for a descrip tion of the Shell for the FILEX to be accessible to the system The format of EXP LST is shown in Table 1 FILEX FoR SEQUENCE ANALYSIS Sequence analysis model input files created with XCreate have the extension SOX An example of a sequence analysis FILEX is shown in Table 2 There are some important differences in the way in which a sequencing FILEX is set up compared with experiment or seasonal FILEXs In the TREATMENTS section of the file instead of setting up a number of treatments y
20. Header YRDOY GRAN BYPR BASE FER COS IRCO SCOS PCOS E COST FILE DEFAULT FOR SEQUENCE ANALYSIS for which YRDOY is SD of price cost GRAN BYPR BASE NFER NCOS 10 00 0 00 0 00 0 00 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 1 30 00 0 00 55 00 50 2 00 GRAN BYPR BASE NFER NCOS 10 00 0 00 0 00 0 00 00 1 330 00 10 00 395 00 50 12 00 1 330 00 10 00 395 00 50 12 00 8 Date of price or cost year YR and day number 007 Price of grain t Price of harvest byproduct t Base production costs ha Nitrogen fertilizer cost kg Cost per N fertilizer application Irrigation cost mm Cost per irrigation application ha Seed cost kg Cost of organic amendments t Phosphorus fertilizer cost kg Cost per P fertilizer application IRRI 0 00 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 IRRI 0 00 50 50 RCO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
21. is the mean and G is the Gini coefficient of distributions A and B which is half the value of Gini s mean difference the absolute expected difference of a pair of randomly selected values of the variable like SSD assumes that the decision maker is averse to risk but unlike SSD the extremely risk averse are excluded from the analysis It is thus a more dis criminating decision rule than SSD since the MGD efficient set is usually small er and computationally MGD is generally much easier to establish than SSD AN EXAMPLE In the seasonal analysis program E V analysis can be carried out visually from E V plots of economic returns and mean Gini analysis may be carried out by choosing the appropriate menu options Notes on first and second degree sto chastic dominance are included for interest s sake for those readers familiar with DSSAT Version 2 1 To illustrate consider again the example obtained by analyzing the file UFGA7812 SNS using the costs and prices as in the distribution version of UFGA7812 PRI The box plot in Screen 24 on following page shows the impact of large amounts of irrigation on monetary returns per hectare If you look at the amount of irriga tion water applied in the six treatments Screen 25 on 2nd following page and compare this with the yields obtained see Screen 9 it is clear that much of the DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3
22. kg RESM Cost of organic amendments t PCOS Phosphorus fertilizer cost kg PFER Cost per P fertilizer application 5 IRRI 250 00 00 IRRI 50 00 00 IRRI 450 00 00 IRCO 12 50 00 00 IRCO 12 50 00 00 IRCO 12 50 00 00 SCOS 46 00 00 SCOS 46 00 00 SCOS 46 00 00 RESM 00 00 00 RESM 00 00 00 RESM 1 00 00 00 PCOS I 00 00 00 PCOS 1 00 00 00 PCOS 1 00 00 00 PFER 00 00 00 PFER 00 00 00 PFER 00 00 00 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 24 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas Note that if IDIS equals 1 2 or 3 then the prices and costs are stochastic Figure 3 shows the general shapes of the three stochastic price cost distributions that may be used uniform triangular and normal If you specify a large number more than three of stochastic prices and costs and your computer is not of the fastest the economic analysis program may take a long time to run Usually it is best to use only a few stochastic prices and costs The price cost file is sectioned by crop then by treatment number within crop se
23. 90 TOOLS SETUP QUIT S Seasonal Create Inputs Simulate Outputs Analyze Run the appropriate crop model s using a controlling driver program moves through menu choices ESC moves to higher menu level Version 3 0 SCREEN 1 DSSAT Version 3 0 Cropping Season Analysis r FILE EXT ENAME UFGA7801 SNX GAINESVILLE SOYBEAN IRRIGATED AND RAINFED UFGA7802 SNX EXAMPLE SEASONAL ANALYSIS 2 UFGA7805 SNX PLANTING DATE EXPERIMENT 1978 BRAGG GNV UFGA8201 SNX GAINESVILLE FLORIDA MAIZE IR N FERT UFGA7812 SNX GAINESVILLE FLORIDA SB IRRIGATION EXPERIMENT F1 Help 306432 Mem SCREEN 2 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 15 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas Once a valid FILEX name is selected the driver checks to see if there is an exist ing output file with the same name in the current directory this is controlled within FILEX see above If there is then the user is warned that the output file will be overwritten Press Y to continue regardless or lt N gt to quit the pro gram to allow you to rename or move the existing output file
24. DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 12 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis CHAPTER THREE RUNNING SEASONAL ANALYSIS EXPERIMENTS O VERVIEW The seasonal analysis driver program takes the FILEX selected or created by the user and runs through each treatment in the experiment calling the appropriate crop model It is very important to understand that the seasonal driver can be used for any experiment that does not involve a sequence Thus as far as the dri ver is concerned it makes no difference if FILEX describes a real 10 treatment sin gle year experiment or if it describes a hypothetical 4 treatment simulation experiment to be replicated twenty times The driver can thus be used to gener ate replicated experiment output files or it may simply be used to run all the treatments pertaining to a real world experiment automatically The driver is a FORTRAN program that allows the user to pick a specific entry from EXP LST i e a particular see Volume 2 1 Jones et al 1994 of this book for a description of EXP LST This FILEX is then read and various controls are set Each treatment specified in this FILEX is then run in its order of appear ance in the TREATMENTS section of the FILEX The appropriate model is called for ea
25. ENTER key or double clicking on the item with the left mouse button or using the keyboard shortcut keys i e lt ALT gt lt I gt then lt 5 gt Any of the three methods will work Additional information is given in the section WeatherMan User Interface in Chapter 2 BRowsE THE MENU AND ONLINE HELP Pressing the F1 key provides context sensitive cross referenced help Look there first if questions arise while doing the exercise Abbreviated help is displayed on the status line at the bottom of the screen Pressing the lt 5 gt key or selecting the CANCEL button will allow you to back out of most processes Go to the FILE main menu item and select About i e FILE About Press the F1 key to read an introductory screen describing WeatherMan Highlight User interface and dou ble click or press the ENTER key to read about use of the keyboard and mouse Help for cross referenced topics can generally be accessed in the same way SELECTA NEW STATION Go to the STATION main menu item and open Select station i e STATION Select station Enter for the station name The is the ID for the institute CIAT Centro Internacional de Agricultura Tropical Cali Colombia and the QU is the ID for the station location Quilichao When you select a new i e nonexistent station a dialog box similar to Screen 6 appears but with default values in each field The user should ent
26. Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence trend exists can be tested by t m s where t is distributed as Student s t with n 2 degrees of freedom s is the standard error of the gradient and n is the number of data points The model fitted where is a random variable drawn from N 0 sx y2 makes a number of assump tions including the following 1 For each specific X there is a normal distribution of Y from which sample values of Y are drawn at random 2 The normal distributions of Y for specific X are independent 3 The normal distributions of Y for specific X all have the same variance Sx y All these assumptions are often violated when looking at trends in sequences the distribution of yields for any sequence year will often not be normal the sequence distributions are not independent since yields in one year will be dependent to some extent on yields in previous years and the variances of output distributions often change markedly over the length of the sequence For these reasons great care is needed in interpreting the regressions A quick idea of the likely significance of the regression can be gained from inspection of the value of r2 for the 10 or 20 data points that will often be used in the program any value less than 0 5 or so will indicate that the regression is not statistically signifi cant In the example in Screen 18
27. 001 10 0 75 QN NITROGEN NMDEP NMTHR NAMNT NCODE NAOFF 2 NI 30 50 25 001 001 N RESIDUES RIPCN RTIME RIDEP 2 RE 100 1 20 N HARVEST HFIRST HLAST HPCNP HPCNR 2 HA 0 365 100 0 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 76 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence DSSAT v3 Volume 3 Refer to the TREATMENTS section in Table 2 Factor levels are specified as for experiment or seasonal FILEXs Thus we have to specify a cultivar level CU for each rotation component even fallow although this is a dummy value The rotation is grown in the same plot of land FL 1 for both rotation compo nents Initial conditions IC are specified for the maize component IC 1 note that these are the conditions that will pertain at the start of each sequence in subsequent seasons initial conditions in terms of soil water and ammonium and nitrate levels are output by the preceding fallow model Planting of maize takes place according to the PLANTING DETAILS section 1 MP 1 for maize Crop residue is applied at the start of the sequence according to the val ues specified in RESIDUES section 1 MR 1 The maize crop is controlled by the simulation controls in SM 1 For the fallow component the cultivar
28. 2808 2808 2759 63 719 2 05 0 0 462 446 1 81 92 0 0 3253 3253 3149 62 2013 2 05 0 0 819 501 43 309 125 0 0 3140 3140 3309 42 2213 2 05 0 0 527 432 21 145 80 0 0 3457 23457 3513 75 973 2 05 0 0 803 481 13 365 101 0 0 3388 3388 3512 61 2104 2 05 0 0 4 473 3 128 89 0 0 2287 2287 2618 55 474 2 05 0 0 493 423 4 68 157 0 0 3521 3521 3588 69 2081 2 05 0 0 828 517 20 305 144 0 0 3479 3479 3308 84 894 2 05 0 0 684 478 27 252 86 0 0 1798 1798 3064 05 705 2 05 0 0 689 412 29 309 98 0 0 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 18 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Columns 177 252 NFXM NUCM NLCM 280 337 302 288 321 292 310 301 329 313 308 282 308 303 316 311 254 324 331 240 8 8 8 34 26 7 27 30 7 23 34 29 19 24 24 28 29 23 20 16 21 19 21 3 14 19 8 6 23 9 1 4 17 8 18 7 3 17 15 17 C lp P ooo S ooo ooo 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 ONAM 3836 3838 3836 3837 3834 3838 3837 3837 3835 3838 3837 3839 3836 3838 3835 3836 3839 3833 3838 384
29. DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 95 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Hunt L A J W Jones Thornton Hoogenboom D T Imamura G Y Tsuji and U Singh 1994 Accessing data models and application programs In Tsuji G Y Uehara and S Balas eds DSSAT v3 Vol 1 3 University of Hawaii Honolulu HI Jones J W L A Hunt G Hoogenboom D C Godwin U Singh G Y Tsuji N Pickering Thornton W T Bowen KJ Boote and J T Ritchie 1994 Input and output files In Tsuji G Uehara and S Balas eds DSSAT v3 Vol 2 1 University of Hawaii Honolulu HI Richardson C W and D A Wright 1984 WGEN a model for generating daily weather variables United States Department of Agriculture Agricultural Research Sevice ARS 8 Washington DC Thornton P W Wilkens Hoogenboom and J W Jones 1994 Sequence analysis In Tsuji G Uehara and S Balas eds DSSAT v3 Vol 3 2 University of Hawaii Honolulu HI Seas DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 56 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal
30. EBAF1101 PRQ This option might be used when you have a complicated experiment and you wish to preserve the prices and costs that pertain to the experiment Default Price Cost File A default price file called DEFAULT PRO can be used this file is distributed with the 055 3 This default can be as sim ple or as complicated as the user requires its format is shown in Table 5 User Specified Price Cost File The user can browse the hard disk directory structure and find an appropriate PRO file that will be used in the analysis DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 112 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu Economic Evaluation Access a price file current file EBAF1101 PRQ Choose to include fallow periods in analysis Edit price file for sensitivity analysis Do analysis Exit Fl Help 71440 Mem SCREEN 25 DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu r Economic Evaluation Price File Access Use C NDSSAT3NECONOMICNDEFAULT PRO Use C DSSAT3 ECONOMIC Select a new price file
31. Graph Colors dialog box dialog as shown in Screen 44 on following page is presented which allows you to set the colors of the background and graph lines Graph output When the Graph output option is selected the Graph Output Options dialog box shown in Screen 45 on following page is presented In this dialog box you can specify the device port and orientation for hardcopy output In Screen 45 you can select an output device type resolution paper size combi nation from the scrolling list If a file is selected as the output port see the options under the Port window the user is prompted for a file name using a standard File List dialog box prior to entering the graphics program from the ANALYZE Graph menu item DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 190 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Group Background 5 Graph L v Graph Colors Item Axes amp Labels Plot range 1 Plot range 2 Plot range 3 Plot range 4 Plot range 5 Plot range 6 Color 8 2 1 SCREEN 44 UPDATE OPTIONS Selecting the Update options menu item allows you to save the options you have selected All WeatherMan options are saved to the configurat
32. L NB _ L d 1 gt 1 E 0 600 m L IMI LI 4 2 m 3 r a L 5 z go B 0 400 5 i 5 I m 4 5 fi 5 F 8 d a 0 7 0 200 B m 1 I M 1 4 f dee II L I ll I I LI II I 1 l 0 0 400k 0 800k 1 200k 1 600k 2 000k 2 400k 2 800k 3 200k 1 1911 0 1 1913 0 1 1915 0 o 1 1917 0 o 1 1919 0 1 1921 0 SCREEN 13 OPnoN MEAN VARIANCE PLOT When this option in Screen 10 is selected output variables may be plotted in mean variance space The calculated mean is plotted against the variance for the output variable of interest and the sequence year numbers themselves are drawn on the graph the seasons available may be plotted in this way or you may choose a subset of seasons to avoid confusion on the graph Such graphs are another way of giving an indication of the variability associated with each season in the sequence and are useful for visualizing the tradeoffs that must sometimes DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 99 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis be made between striving for a higher mean value wh
33. LAI 3 0 99 0 BIOMASS kg dm ha 12879 099 STRAW kg dm ha 5390 99 GRAIN 5 2 07 2 86 BIOMASS N kg ha 171 8 99 0 STRAW N kg ha 16 9 99 0 GRAIN N kg ha 154 9 99 0 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 228 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype TABLE 4 EXAMPLE OF AN EXPERIMENT DETAILS FILE EXP DETAILS KSAS8101WH NITROGEN 3N 2I GODWIN GENERAL PEOPLE WAGGER M G KISSEL D ADDRESS DEPT AGRONOMY KANSAS STATE UNIV MANHATTAN KANSAS SITE ASHLAND KS USA 39 0 97 0 226 NOTES Documented in Wagger M G 1983 Nitrogen cycling in the plan soil system Ph D thesis Kansas State Univ 0 0 0 0 0 0 TREATMENTS een FACTOR LEVELS GN R O C TNAME CU FL SA IC MP MIMF MR MC 1 1 1 0 1 11 O N DRYLAND 11 0 1 1 1 1 1 2 1 1 0 2 11 60 3 DRYLAND 1 1 0 1 1i T 2 1 3 1 1 0 N3 I1 180 N DRYLAND 11 0 1 1 1 3 1 4 1 1 0 1 12 0 IRRIGATED 11 911 21417 5 11 0 N2 I2 60 N IRRIGATED l 1 0 1 1 2 2 I 6 1 1 0 N3 I2 180 N IRRIGATED 1 1 0 1 1 2 3 1 CULTIVARS C INGENO CNAME 1 WH 0488 NEWTON FIELDS L ID FIELD WSTA FLSA FLOB FLDT FLDD FLDS FLST SLTX SLDP ID SOIL 1 KSAS0001 KSAS 0 0 0 0 0 0 0 180 1 INITIAL CONDITIONS 60 PCR ICDAT ICRT 1 WH 81279 1
34. Seasonal Analysis Seasonal Analysis Seasonal Analysis Results of the calculations carried out to establish this mean Gini dominance can be viewed by pressing the lt Y gt or lt ENTER gt keys Screen 22 displayed below lists the mean return for each treatment the mean return minus its gini coefficient and whether the treatment is efficient or dominant or not In the example shown note that the extra cost of irrigating frequently is not justified in terms of the added benefit of more yield This example is discussed in more detail in Appendix B NOTE You should be careful in interpreting the output of Strategy Analysis as the assumptions may not always be valid It is however a useful tool for helping you to pre screen a wide variety of options and identifying those options or treatments that merit further investigation Of course there may be many reasons why a dominant treatment is not appropriate for a particular farmer further analyses outside the confines of the DSSATS will always be required before much be said about the feasibility of particular management options in any particular situation Another case where you should exercise great care in interpretation is when you are inves tigating the economic benefits of fertilizer use You may have the situation where you are running a treatment with the nitrogen routines of the crop models turned off If you ana lyze such a treatment economically then you will
35. Statistics Report Graph SCREEN 31 Data fill The Data fill option creates a filled archive file called Station_FIL WTD This file is usually treated as a temporary file for the duration of the WeatherMan session see the following section entitled Options Menu and the subsection Temporary Files for a description of how to change from temporary file The filled archive file can be analyzed and compared with the raw data to check the data fill algorithms STATISTICS The Statistics menu item listed in Screen 31 provides algorithms for summariz ing the data in various ways When this option is selected the Archive Type dialog box is presented Screen 32 on following page This dialog box allows you to choose raw filled or generated archive files Statistics are output to summary files and are usually treated as temporary files for the duration of the WeatherMan session see the following section entitled Options Menu and the subsection Temporary Files for a description of how to change from a temporary file The SUM files are also used for the Report and Graph options under the ANALYZE menu The Time Period dialog box allows the user to choose the time period to be analyzed The default action is to analyze the whole archive file In Screen 32 there are four types of statistics to select from Moments Percentiles Distribution a
36. Volume DSSAT v3 Volume 183 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Time Plot Range Type Plot Num Station Variable Grouping 1 X UFGA RAW SPRAD 2 UFGA RAW Range 3 UFGA RAW TMIN 4 Graph 4 UFGA RAW RAIN 1 5 UFGA RAW PAR Cancel 6 UFGA RAW 4 SCREEN 35 The GROUPING and RANGE buttons in Screen 35 control the graph choices while the GRAPH button displays the graph and the CANCEL button exits the dialog box The TYPE button provides a choice of six graph types in the Graph Type dialog box that overlays the plot definition dialog box as shown in Screen 36 below The GROUPING button accesses a Select Grouping dialog box similar to the right hand side of the Summary Statistics Screen 32 or View Print Statistics Graph Type Plot Type of Graph Type Num Stati Time plot 1 X 86 Box plot 2 NX Histogram Range 8 Cumul distribution Range 4 Bm UFG Autocorrelation Graph 5 gu UFG Rainfall probability er Cancel SCREEN 36 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 184 WeatherMan Weathe
37. Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 82 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence DSSAT Version 3 0 Crop Sequencing Driver FILE EXT ENAME UFGA7803 SQX SEQUENCE ANALYSIS SIMPLE MULTI TREAT FILE 5 5 UFGA7804 SOX BN BN YR 1 SB YR 2 EXAMPLE 10 5 MRS 1S IES NO IN 0 0 Fl Help 71440 Mem SCREEN 2 screens in monochrome by pressing the lt ALT gt lt F2 gt keys Note that you cannot reverse the color scheme during a session with the program nor is your prefer ence stored from one session to another If the chosen FILEX cannot be found an error message is printed on the screen and the menu reappears for making another choice Select the third FILEX 1101 5 in Screen 2 using the cursor keys or the mouse and press the lt ENTER gt key This is the same FILEX shown in Table 2 Having chosen a valid FILEX name the driver checks to see if there is an existing output file with the same name in the current directory this is controlled within FILEX see previous discussion If there is then the user is warned that the out put file will be overwritten Press the lt ENTER
38. if the model is UFGA7812 SNX then simulation results from the model s are saved in UFGA7812 SNS and analysis results in UFGA7812 SNR If you want to change the results file name enter a new name 8 characters maximum Do not add the extension this is added automatically and cannot be changed and will always be ccR where cc is the crop code usually SN for seasonal analysis The next screen presented Screen 7 on following page summarizes the simula tion runs found in the chosen summary output file The experiment code crop group and file title are displayed with a treatment by treatment listing of treat ment title file ID the number of replicates and the appropriate crop pertaining to each treatment If there are problems with the summary output file for instance an unequal number of replicates because of model failure for some rea son in some treatments these problems will usually be apparent at this stage Such errors are usually trapped by the analysis program and result in a warning message to the user and termination of the program Press any key to continue and the main menu of the Analysis program appears again Screen 5 The items in this menu are illustrated in turn ANALYZE BIOPHYSICAL VARIABLES On choosing the main menu option Analyze Biophysical Variables in Screen 5 with the mouse or cursor keys a list of the variables available for analysis appears Screen 8 on following page This is a l
39. low compone aize componen low compone aize componen low compone Maize componen low componen 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 DATES A po ee pupas SDAT PDAT MDAT 11244 11305 12010 12059 12059 12060 99 99 99 12304 12305 12305 13010 13057 13057 13058 99 299 99 13304 13305 13305 14006 14049 14049 14050 99 99 99 14304 14305 14305 15008 15055 15055 15056 99 99 99 15304 15305 15305 16007 16055 16055 16056 99 99 99 16304 16305 16305 17009 17058 17058 17059 99 99 99 17304 17305 17305 18010 18056 18056 18057 99 99 99 18304 18305 18305 19008 19056 19056 19057 99 99 99 19304 19305 19305 20006 20051 20051 20052 99 99 99 20304 20305 21006 21006 21053 21053 21054 99 99 99 21304 WATER H U IR M IRCM PRCM ETCM ROCM 78 6 0 0 1213 499 89 00 0 0 615 221 45 32 2 0 0 1012 415 46 00 0 0 559 194 54 69 7 0 0 632 382 26 00 0 0 677 233 87 30 4 0 0 1070 384 86 00 0 0 502 197 27 76 0 0 0 712 385 37 00 0 0 454 198 28 11 2 0 0 1004 399 60 00 0 0 641 226 41 35 0 0 0 940 404 50 00 0 0 554 201 65 80 3 0 0 798 380 51 00 0 0 493 217 19 52 5 0 0 807 369 64 00 0 0 673 229 79 53 7 0 0 851 400 42 00 0 0 617 203 51 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 85 Sequence Analys
40. program will plot the first six years selected the rest will be ignored For the example select the years 1911 1913 1915 1917 1919 and 1921 as shown in Screen 12 and press the ENTER key The resulting plot is shown in Screen 13 on following page To print press the lt P gt key or press the ENTER key to return the Graphics Regression main menu Screen 10 DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu Analysis 2 ason file for analysis r Trends Over Time 34j YEAR 1911 0 V 1912 1913 1914 1915 1916 1917 1918 1919 1920 TAR 1922 1923 1924 1925 1926 Tl 71440 Mem lot O m 0 O O O O O O O O O m on on on SCREEN 12 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 98 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence CPF PLOT OF HAR YIELD kg ha 21 1 000 qq qe LI ET T OLA 1915 9 1 0 800 1921 0 L 1913 0
41. the regression suggests that the slope or gradient is negative i e on average there is a trend for maize yields to decrease by 34 kg ha each season The standard error of the gradient is not large compared with its value The slope is significantly different from zero according to the t test The regression explains a fair proportion of the variability in mean yield since the value of r is moderate 0 6 Exponential Regression The exponential regression option operates in the same way by fitting the linear transformation In y 7 In c mx of the exponential function y c exp mx notation as above DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 105 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Plot the Regression Line Having fitted a regression the regression line can be plotted choose this option from the Regression menu Screen 17 to produce the plot Screen 19 below The fitted line is shown together with the seasonal means as small boxes Note that the yield for 1911 is much higher than its regressed value This is largely due to the 5 t ha of crop residue added at the start of each sequence replicate see Table 2 Press any key to return to the Regression menu
42. treatment field crop mean st dev 1 RBAINFED sie sores UFGA0001 SB 00 00 2 AUTOMATIC 90 UFGA0001 SB 22 25 3 99 3 AUTOMATIC 70 UFGA0001 SB 10 80 2 76 4 AUTOMATIC 50 UFGA0001 SB 6 65 2 11 5 AUTOMATIC 30 UFGA0001 SB 3 10 1271 6 10 0001 SB 65 81 percentiles treat Oth 10th 25th 50th 75th 90th 100th 1 0 0 0 0 0 0 0 2 12 0 18 8 20 8 22 0 25 0 27 0 30 0 3 6 0 8 8 9 0 10 5 11 3 15 1 17 0 4 3 0 4 9 5 0 6 0 8 3 9 1 11 0 5 0 1 9 2 0 3 0 4 0 6 0 7 0 6 0 0 0 0 1 0 2 0 2 0 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 49 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas 1 008 Read error in subroutine GETCOD file An error occurred in reading the specified file 0 009 Code could not be found The program attempted to find the specified code in the DSSATPRO FLE but could not find it The pathname associated with the code specifies the location of the graphics program for the seasonal analysis graphics 1012 Treatments are not numbered consecutively from 1 The treatments in the summary output file selected are not numbered consecu tively starting with a treatment number of 1 Treatment numbers in the file can be edited to prevent th
43. with a flag indicating the source of the error On Export if a data item is filled in the value s error flag is converted to an upper case letter This reminds the user that the value was filled in and the cause of the error Error flag definitions are listed in Table 5 EXPORT OPTIONS The options for export can be changed using the Export options menu item which accesses the Export Options dialog box presented in Screen 26 on fol lowing page and discussed in Table 7 When any of the data fill options are turned on in Screen 26 by placing an x in the left hand box in the Other options menu list there are a number of ways in which the data fill can be implemented These options are accessed from the Data fill options menu item that invokes the Data Fill Options dialog box given in Screen 27 on following page and discussed in Table 8 GENERATE MENU The GENERATE menu item found on the WeatherMan main menu allows esti mation of the weather generator parameters and subsequent generation of daily weather data The weather generators used are adaptations of WGEN Richardson and Wright 1984 and SIMMETEO Geng et al 1986 Geng and Auburn 1988 The SIMMETEO generator is embodied in the WGEN generator but uses a different input section The resulting WGEN SIMMETEO is a transla tion of the FORTRAN version used internally in the DSSAT v3 crop models In this version of WeatherMan both generators are restricted to
44. 0 00000 99 180 2910032 INITIAL CONDITIONS ec PCR ICDAT ICND MZ 11244 100 99 1 00 1 00 GC SH20 SNH4 SNO3 5 0 265 6 6 25 10 0 265 026 1 5 20 0 265 0 6 1 9 30 0 248 0 6 5 40 0 248 0 6 1 5 50 0 248 5 60 0 248 0 6 ah 5 70 0 248 0 6 19 80 0 248 0 6 1 5 100 0 248 0 6 1 0 120 0 248 0 6 0 PLANTING DETAILS P PDATE EDATE PPOE PLME PLDS PLRS PLRD PLDP PLWT PAGE PENV E 99 6 2 6 2 5 R 80 0 5 0 99 99 99 0 9920 RESIDUES AND OTHER ORGANIC MATERIALS R RDATE RCOD RAMT RESN RESP RESK RINP RDEP 1 11300 001 5000 0 8 9 9 15 HARVEST DETAILS CR HDATE HSTG HSIZ HPC 1 12304 100 0 SIMULATION CONTROLS N GENERAL NYERS NREPS START YRDAY RSEED 5 1 GE 30 5 11244 3517 MZ component N OPTIONS WATER NITRO SYMBI PHOSP POTAS DISES 1 OP Y Y Y N N N e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 75 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis N METHODS WTHER INCON LIGHT EVAPO INFIL PHOTO 1 ME VI M I R 5 C N MANAGEMEN
45. 000075 000 625 06 000075 000 625 06 000075 000 625 06 000075 000 625 06 000075 000 625 06 000075 000 625 06 000075 000 2 0001 340 5200 94 3 0001 340 5200 94 0001 340 5200 94 2 0001 340 5200 94 3 001 340 5200 94 N gt gt Which RUN to select Enter number from RUN column gt Main coefficients for different experiments and initial values nitial values are referenced in the Run column T treatments SCREEN 13 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 219 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff G C CALCULATOR AVERAGES VERSION 3 GENOTYPE P10 X 304C 1 2 3 4 5 6 Pl P2 5 G2 G3 PHINT Old values 320 520 940 625 6 00 75 0 New vlues 340 520 000 000 000 000 0 0 0 0 0 0 Treatments 3 1 0 0 0 0 Number of experiments 1 SELECT an additional run PRESS Y or N Coefficient values determined for differnet experiments and one set of initial values Coefficients of variation if more than 3 values SCREEN 14 15 16 17 18 19 with values currently in the cult
46. 1174 0 1913 8 636 3 134 8 438 0 914 0 1914 1 846 6 99 2 632 0 1007 0 1914 8 631 2 124 8 380 0 850 0 1915 2 872 5 157 2 589 0 1131 0 1915 8 614 7 145 8 336 0 892 0 1916 2 880 7 141 4 712 0 1182 0 1916 8 557 8 163 2 392 0 981 0 F1 Help TL Press any key to see more 71440 wem SCREEN 23 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 110 Analysis DSSAT v3 Volume 3 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis PRECIP mm 1 400k BOX PLOT OF PRECIP mm 21 1 1 200k 1 000k 0 800k 0 600k 0 400k 1911 1919 1927 YEAR 1935 Season precipitation mm SCREEN 24 but this time choose Analysis Option 1 Additive in Screen 22 Observe the differ ences in the tabular output and the plot maize and fallow precipitations are added together by the calendar year in which they occurred according to harvest dates in the summary output file Now do the same thing but choose Analysis Option 2 Average in Screen 22 the average values will be produced by calendar year Note that this analysis has li
47. 2 List OF ESSENTIAL STEPS FOR CREATING A COMPLETE DAILY WEATHER DATA FILE WITH THE CORRECT FORMAT AND UNITS FROM RAW DATA IN WEATHERMAN 1 Define weather station name and enter site characteristics a Select the menu item Station Select Station and enter a 4 character code for the new station b Enter the requested descriptive information for the new station in the form presented on the screen 2 Import one or more raw data files a Select the menu item Import Export and Import Single File items b Create a format definition for the data file that is being imported when prompted for selecting a file format Select NEW format and EDIT buttons to create the format Enter the requested information about the format number of header lines dates variable and units and columns for variables Then select the SAVE button and give the defined format a new 4 character name Usually one would name the format so that it describes the source of raw data After saving the format select on the screen data from the raw data file will be read into an internal file named Station GEN WTD where Station GEN is the name of the weather station 3 Compute weather generator parameters for the site a Select Generate button followed by Calculate Parameters b Select the button for Both Sets of Parameters This will calculate the necessary parameters for the weather gen
48. 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 108 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu r Analysis ason file for analysis Crop codes 1 21 2 FAL HARVEST day ns SOWING WT kg ha TOPS WT kg ha MAT YIELD kg ha HAR YIELD kg ha BYPRODUCT kg ha WEIGHT mg unit NUMBER m2 NUMBER unit IRRIG APPS IRRIG mm PRECIP mm ET TOTAL mm RUNOFF mm Fl aei 71440 Mem SCREEN 21 DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu Analysis file for analysis Analysis Additive ariables tables Average Time series ms TOPS WT kg ha MAT YIELD kg ha HAR YIELD kg ha BYPRODUCT kg ha WEIGHT mg unit NUMBER m2 NUMBER unit IRRIG APPS IRRIG mm PRECIP mm ET TOTAL mm RUNOFF mm 14 F1 Help 71440 Mem SCREEN 22 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 109 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis number is calculated as 19127
49. 55 8 365 or 1912 2 to one decimal place Screen 23 The first fallow period of the first replicate stopped on day 304 in 1912 as it did for each year subsequently Table 4 remember that planting of maize took place on day 305 each year The mean sequence year number for the fallow rainfall total is thus calculated as 19124 304 365 or 1912 8 to one decimal place These the year numbers that are used in all subsequent plots Thus a box plot of precipita tion shows a time series of these cumulative rainfall occurrences see Screen 24 on following page You may notice that the rainfall amount for the maize crop in 1911 1912 appears higher than in other years This is explained by the fact that in 1911 simulation with the maize model started on day 244 Tables 2 and 4 in all other years the maize model was run from day 305 Thus in 1911 the rainfall total covers a longer period than in any of the other years This again illustrates the care that is needed in the interpretation of analysis results and the importance of understanding the nature of your crop sequence Now return to the Crop Code menu Screen 21 choose 71 and 1 as before DSSAT Version 3 0 Crop Sequencing Analysis Trends Over Time Variable PRECIP mm Crop Code s MZ1 1 Sequence Year Mean St Dev Min Max 1912 2 1050 9 137 3 763 0 1222 0 1912 8 638 1 100 1 519 0 898 0 1913 2 893 1 113 5 711 0
50. 6 3 AUTOMATIC 70 UFGAO001 SB 534 0 187 1 210 6 811 8 4 AUTOMATIC 50 UFGAO001 SB 607 0 187 2 307 4 933 5 5 AUTOMATIC 30 UFGAO001 SB 668 8 189 4 345 0 982 1 6 AUTOMATIC 10 UFGAO001 SB 637 7 191 8 243 4 990 5 F1 Help Press any key to continue 214240 Mem SCREEN 19 variable note also that returns per hectare decrease markedly as more irrigation is applied Heavily irrigated treatments are clearly economically wasteful in this situation for the costs and prices used which are fictitious and for illustrative purposes only From within Screens 17 18 or 19 press any key to continue and the economics Graphics Strategy menu appears Screen 20 on following page The first three options in Screen 20 operate in exactly the same way as described for the bio physical variables in the section entitled Analyze Biophysical Variables The fourth option in Screen 20 Strategy Analysis is described as follows STRATEGY ANALYSIS MEAN GiINI DOMINANCE When the Strategy Analysis option is selected in Screen 20 the resulting screen Screen 21 on following page lists the mean Gini dominant treatment of the experiment in terms of the costs and prices used to analyze it Appendix B dis cusses strategy analysis in some detail Basically however a dominant treatment is one that would be preferred by a decision maker over the other dominated treatments if various things are assumed
51. ALL in the treatment header is found then that section will be used for all the prices and costs for that crop The program will match treatment numbers by section if it can If treatment numbers in FILEX cannot be matched directly with the treatment sections in the price cost file then the pro gram will use the next highest treatment number section that has been specified in the price cost file If you are unsure about the prices and costs used in any analysis you can refer to the analysis results file where the prices and costs used in each analysis are written out explicitly 2 PRICE FILE FOR SENSITIVITY ANALYSIS The second option Edit price file for sensitivity analysis in Screen 15 allows the user to make changes to a price cost file When this option is selected you have the choice to edit each treatment separately or all of them together Select all the treat ments using the lt gt key or select one at a time using the space bar Press the ENTER key The next screen presented Screen 17 on following page shows the current values of costs and prices Press any key to continue Screen 18 on second following page will be presented from which you can select the cost price variable to change For example to change the grain price select this item A submenu will give you the choice of distribution or it may be fixed or ignored and you will be prompted for the appropriate distribution parameters If you
52. ANALYSIS 126 INFORMATION AND ERROR MESSAGES 126 REFERENCES 133 APPENDIX THE STABILITY OF OUTPUT VARIABLES FROM REPLICATED SEQUENCE EXPERIMENTS 135 FIGURES FiGURE 1 STEPS IN SEQUENCE ANALYSIS 71 FIGURE 2 MENU OPTIONS FOR THE SEQUENCE ANALYSIS PROGRAM 90 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume VII FIGURE TABLES DSSAT v3 Volume 3 VIII TABLE 1 TABLE 2 TABLE 3 TABLE 4 TABLE 5 TABLE 6 TABLE 7 TABLE 8 TABLE 9 SIMULATED SEQUENCE OUTPUTS FOR 100 20 10 AND 5 RESPECTIVELY 136 SEQUENCE EXPERIMENT LisriNG FiLE EXP LST 73 A SAMPLE FILEX ron CROP SEQUENCING EBAF1101 SQX 75 SUMMARY OurTPur LisTING FILE SEQ UEN CE LST 81 SUMMARY Fie 1101 50 5 First 20 DATA RECORDS ONLY 85 PART OF THE DEFAULT SEQUENCE PRICE DEFAULT PRQ 115 SAMPLE SECTION GRAPH INI 123 PRINTER 5 SUPPORTED BY THE GRAPHICS PROGRAM 124 EXPERIMENT DATA Copes DATA CDE SUMMARY SECTION ONLY 125 PART OF SEQUENCE ANALYSIS RESULTS FILE EPAF1101 SQR1 2 7 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSS DSSAT v3 Volume 3 VOLUME 3 3 W EATHERM AN CHAPTER ONE INTRODUCTION PROGRAM DESCRIPTION OVERVIEW OF FUNCTIONS SYSTEM REQUIREMENTS CHAPTER TWO GETTING STARTED
53. CES The Sequence Analysis program is outlined in the following Thornton P K G Hoogenboom P W Wilkens P W and W T Bowen 1994 A computer program to analyze multi season crop model outputs Agronomy Journal in press A good source of general information on regression is Snedecor G W and W G Cochran 1980 Statistical Methods Iowa State University Press Ames IA Other References Hunt L A J W Jones Thornton Hoogenboom D T Imamura G Y Tsuji and U Singh 1994 Accessing data models and application programs In Tsuji Uehara S Balas eds DSSAT v3 Vol 1 3 University of Hawaii Honolulu HI Jones J W L A Hunt G Hoogenboom D C Godwin U Singh G Y Tsuji N Pickering Thornton W T Bowen K J Boote and J T Ritchie 1994 Input and output files In Tsuji G Y G Uehara and S Balas eds DSSAT v3 Vol 2 1 University of Hawaii Honolulu HI Thornton P K Hoogenboom P W Wilkens and J W Jones 1994a Seasonal analysis In Tsuji G Y Uehara and S Balas eds DSSAT v3 Vol 3 1 University of Hawaii Honolulu HI e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 133 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT v3 Volume 3 DSSAT v3
54. DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 60 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis BOX PLOT OF MONETARY RETURNS PER HA 1 0806 TT LI I LI I IL I LL LI LI LI I LI I LI LI I L I 0 900k 0 720k 0 540k MONEY HA 0 360k 0 180k TREATMENT ALL TRTS SCREEN 24 water applied in Treatments 2 3 and 4 is wasted only a small amount of supplemental irrigation is required to alleviate most of the water stress that may occur in most years The same can be seen in terms of the number of irrigation applications made in each treatment Screen 26 on following page We can conclude that the cost of irrigation water per mm the cost of each irrigation appli cation and the limited yield response to heavy irrigation applications combine in such a way that the most profitable option of the six consid ered is to apply irrigation at a threshold of 30 percent of field capacity 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 61 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal An
55. F Returns 21 analysis 1 I Returns FA1 7 Total 4 Review Variable Enter critical return HA Ex Current Value 000 Exit Maximum Value 430 765 Minimum Value 134 196 New Value 0 0 1 Help 71440 SCREEN 31 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 119 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis failing to generate a certain level of returns from an enterprise is an important criterion of viability if this probability of failure increases through time then this raises serious questions concerning the long term viability of the crop sequence or rotation The probability analysis performed is one way of addressing this issue Having selected the critical return Screen 31 enter a value of 0 ha here the program will calculate the probability each year of failing to meet this critical return The resulting screen Screen 32 below shows the probability of the sequence failing to generate positive returns per hectare in each sequence year Press any key to complete the display of the table You are then asked if you want to plot these probabilities Enter Y to produce the plot in Screen 33 on following page The costs and prices used in the example are hypothetical and are also const
56. FLDS FLST S 0 0 00000 PERS PLRD PLDP 91 0 4 0 RDEP 100 15 RSEED 5 9875 5 DISES INFIL PHOTO 5 HARVS M GROTH N N N 0 5 LTX 99 0 O 62 O 0 0 amp MR MC MT ME MH SM 0 5 3 5 2 fex gt 65 Ds SLDP ID SOIL PLWT 9 9 N 180 IBSB910015 PAGE PLPH 99 99 0 99 0 CARBN WATER NITRO MINER DISES LONG N N N Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas 8 AUTOMATIC MANAGEMENT GN PLANTING PFRST PLAST PH20L 200 PH20D PSTMX PSTMN 1 PL 155 200 40 100 30 40 10 N IRRIGATION IMDEP ITHRL ITHUR IROFF IMETH IRAMT IREFF IR 30 50 100 001 001 10 0 75 TROGEN MDEP NMTHR NAMNT NCODE NAOFF 1 NI 30 50 25 IB001 IB001 GN RESIDUES RIPCN RTIME RIDEP 1 RE 100 1 20 GN HARVEST HFRST HLAST HPCNP HPCNR 1 HA 0 365 100 0 GENERAL YERS NREPS START SDATE RSEED 5 2 GE 20 1 S 78166 9875 OPTIONS WATER NITRO SYMBI PHOSP POTAS DISES 2 OP Y Y Y N N N GN METHODS WTHER INCON LIGHT EVAPO INFIL PHOTO 2 ME W M E R S 8 N MANAGEMENT PLANT IRRIG FERTI RESID HARVS 2 MA R A R R M N OUTPUTS FNAME OVVEW SUMRY FROPT GROTH CARBN WATER NITRO MINER DISES LONG 2 OU Y N A 10
57. IBSNAT3 Add Group cancel dj SCREEN 21 IMPORT The Import option can be used to import a single file or a set of files into an archive file The Import single file option uses the standard File List dialog box to select a import file name and format These steps are identical to the first two steps discussed in the above Convert format section The Import multiple files option builds a list of files and their corresponding formats This feature is useful where the weather variables are stored in different files with different for mats or for a group of files with the same format The Files To Import dialog box presented when this option is selected is shown in Screen 21 In Screen 21 the ADD FILE button activates the IMPORT EXPORT File Name dialog box and adds a file to the list displayed in the left hand window of this screen The REMOVE FILE button can be used to delete a highlighted file from the list The first file chosen is inserted into the list with a format of none The SELECT FORMAT button activates the Format Name dialog box and the user can access the Edit File Format dialog box using the EDIT button in that dialog box Adding subsequent files automatically assigns them the format name of the highlighted line This feature facilitates adding several files with the same format to the list The format of a highlighted file may also be modified from the SELECT FORMAT button Files in the list a
58. ISBN 1 886684 03 O VoLUME ISBN 1 886684 00 6 3 VOLUME DSSAT v3 VOLUME 3 1 SEASONAL ANALYSIS VOLUME 3 2 SEQUENCE ANALYSIS VOLUME 3 3 W EATHERM AN VOLUME 3 4 GENOTYPE COEFFICIENT CALCULATOR DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSS IV TABLE OF CONTENTS VOLUME 3 1 SEASONAL ANALYSIS CHAPTER ONE INTRODUCTION SYSTEM REQUIREMENTS CHAPTER TWO CREATING MODEL INPUT FILES FOR SEASONAL ANALYSIS CHAPTER THREE RUNNING SEASONAL ANALYSIS EXPERIMENTS OVERVIEW AN EXAMPLE INFORMATION AND ERROR MESSAGES CHAPTER FOUR ANALYZING SEASONAL ANALYSIS EXPERIMENTS OVERVIEW AN EXAMPLE ANALYZE BIOPHYSICAL VARIABLES GRAPHICS MAIN MENU ANALYZE ECONOMIC VARIABLES EVALUATION MAIN MENU MobpiFv HARDCOPY OPTIONS SELECTING ANOTHER INPUT FiLE FOR ANALYSIS INFORMATION AND ERROR MESSAGES REFERENCES APPENDIX A COMBINING YIELD AND PRICE DISTRIBUTIONS AN ILLUSTRATION APPENDIX B THREE DECISION CRITERIA MEAN VARIANCE EV ANALYSIS STOCHASTIC DOMINANCE SD ANALYSIS MEAN GINI DOMINANCE MGD ANALYSIS AN EXAMPLE 13 13 14 17 23 23 24 26 28 34 34 44 48 48 55 57 58 59 59 59 60 60 e DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume FIGURES FiGuRE 1 5 5 IN SEASONAL ANALYSI
59. Oceanographic and Atmospheric Administration United States Department of Commerce Asheville NC Pickering N B J W Hansen J W Jones H Chan and D Godwin 1994 WeatherMan A utility for managing and generating daily weather data Agron J 86 2 332 337 Pickering N B J R Stedinger and D A 1988 Weather input for nonpoint source pollution models J Irrig Drain Eng 114 4 674 690 Prescott J A 1940 Evaporation from a water surface in relation to solar radiation Trans R Soc S Austr 64 114 118 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 193 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Richardson C W and D A Wright 1984 WGEN a model for generating daily weather variables United States Department of Agriculture Agricultural Research Service ARS 8 Washington DC Rietveld M R 1978 A new method for estimating the regression coefficients in the formula relating solar radiation to sunshine Agricul Meterol 19 243 252 Rudloff W 1981 World Climate Wissenschaftliche Verlagsgesellschaft mbH Stuttgart Germany DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 194 WeatherMan WeatherMan WeatherMan Weathe
60. SCREEN 34 Variable names that appear in summary files are given in Appendix A GRAPH The Graph option provides access to a graphics package to plot both the data in the archive files and in the statistics SUM files The following six graph types are available Time Plot Box Plot Histogram Cumulative Distribution Autocorrelation and Rainfall Probability Within each graph type up to six plots can be defined except for the Box Plot and Auto correlation which allow only a single plot but only the checked plots will actually be plotted A plot definition dialog box is used to create combinations of weather stations variables wet states and time ranges A default set of plots is automatically loaded into this dialog box The down arrow or mouse can be used to access lists for the Station Variable and Wet state columns Only valid choices are displayed For example if statistics have not been calculated for a particular weather station the statistics variables for that station will not be displayed In addition the Wet state column is not visible for a daily time grouping The wet state refers to the occurrence of rainfall choices are Wet Dry or All An example of a plot definition dialog box is given in Screen 35 on following page for a Time Plot Range where six plots are defined and two TMAX and TMIN are checked for plotting DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3
61. Shell Volume 1 3 Hunt et al 1994 of this book It is important to note that in which ever mode the driver is run the program expects to find the model pro gram s in the same directory If model executable files are not found in that direc tory then an error message is printed and the user must arrange the executable files so that this condition is met The file DSSATPRO FLE see the Appendix to Volume 1 of this book for a description of this file also expected to be in this same directory with appropriate pointers to the relevant directories for the crop model executable files TABLE SUMMARY LI5IIMC FILE SEQ UEN CE LST SEQUENCING LIST FILENAME EXT ENAME UFGA7803 505 SEQUENCE ANALYSIS SIMPLE MULTI TREAT FILE 5 5 UFGA7804 505 BN BN 1 SB YR 2 EXAMPLE 10 5 3 1101 505 2 30 YRS 15 REPS NO N e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 81 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis From within DSSAT v3 the current directory for sequence runs will usually be C DSSAT3 SEQUENCE where such files as EXP LST SEQUENCE LST and appropriate FILEXs are stored The file EXP LST may
62. To run GenCalc as a stand alone program refer to Hunt and Pararajasingham 1994 Transfer experiment data sets with genotypes you wish to examine into the appropriate directory e g wheat data into CX DSSAT3 WHEAT and use an editor to add the experiment s to the list in the EXP LST file See Appendix for an example of this file and Volume 2 1 Jones et al 1994 for this book for a description of this file These data sets must be complete with weather and soils data and with data in the cultivar file DECISION SUPPORT SYSTEM FOR AGROTECHNOLOGY TRANSFER DATA MODEL ANALYSES TOOLS SETUP QUIT Background Experiment Genotype Weather Soil Pest Economic zi G gt lt UJ Cultivar ecotype and species information 145 gt moves through menu choices ESC moves to higher menu level Version 3 0 SCREEN 1 DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 209 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 210 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculat
63. Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 134 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence APPENDIX A THE STABILITY OF OUTPUT VARIABLES FROM REPLICATED SEQUENCE EXPERIMENTS The main conclusion of this appendix can be stated simply to obtain relatively sta ble estimates of output means and variances from replicated sequence experiments you should use as many replications as possible In practice you should always use at least 10 and preferably nearer to 20 the limit of the program Sequence outputs may be very unstable with fewer than 10 replicates The major implication of this is that it will be possible for users to draw erroneous conclusions from insufficiently replicated sequence experiments It is easy to show this with a computer program that simulates a crop model by drawing a random sample from a normal distribution with mean 6 and standard deviation 1 5 to represent yield does this for 12 years in sequence and replicates this sequence as often as required from 1 to 100 The null hypothesis of NO TREND OVER THE SEQUENCE is thus true Results are shown in Figure 3 In the first graph with a sample size of 100 100 replicates there is no apparent trend nor should there be as there is none and the maxima and minima of each distribution from on
64. about the decision maker s attitudes and preferences It is a form of decision analysis that takes account of the risk involved Note that the dominant strategy Treatment 5 displayed on Screen 21 produced the highest mean return per hectare 668 80 ha as shown on Screen 19 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 41 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT Version 3 0 Cropping Season Analysis Tool r Main Menu r Options Graphics Strategy file UFGA7812 PRI Box plot ty analysis Cumulative function Mean Variance plot Strategy analysis F1 Help 214240 Mem SCREEN 20 DSSAT Version 3 0 Cropping Season Analysis Tool Strategy Analysis Mean Gini Dominance Dominant Treatment SB AUTOMATIC 30 UFGA0001 Yes Do you want more details Y N Fl Help 214240 Mem SCREEN 21 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 42 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis
65. appropriate name does not appear in SEA SONAL LST then SEASONAL LST is updated and the program tells you that this has been done Press any key to continue You will then be asked if you want to run another experiment Respond by pressing the lt N gt or ENTER keys to exit the pro gram or the Y key to return to the opening screen showing file EXP LST where another experiment can be chosen and simulated see Screen 2 You may simu late as many FILEXs as you like one after the other without exiting the driver program Simulation results are stored in the summary output file in this example UFGA7812 SNS The first 20 simulation records of this file are shown in Table 4 INFORMATION AND ERROR M ESSAGES A number of information and error messages are produced by the driver pro gram In the list that follows each message is preceded by a single digit code and a three digit message error number If the single digit code is 0 then this isa fatal error and the program exits If the code is 1 then the program will contin ue as the error may not be fatal Information messages have code 1 also 0 001 Cannot find experiment file The FILEX experiment listing file could not be found in the current directory 0 002 No entries found in file The FILEX experimental listing file was found but it contains no valid entries 1 003 Cannot find file The specified file cannot be found non fatal 0 004 Error reading An
66. book PROGRAM DESCRIPTION The WeatherMan program is designed to simplify or automate many of the tasks associated with handling analyzing and preparing weather data for use with crop models or other simulation software WeatherMan can be used either as a stand alone package or called from within the DSSAT v3 Shell for a description of the Shell see Volume 1 3 Hunt et al 1994 of this book WeatherMan has the ability to translate both the format and units of daily weather data files check for errors on import and fill in missing or suspicious values on export WeatherMan can also generate complete sets of weather data comprising solar radiation maxi mum and minimum temperature rainfall and photosynthetically active radia tion Summary statistics can be computed and reported in tables The summary statistics or daily data can be viewed graphically WeatherMan is written in Borland Pascal v 7 Borland 1993 The user interface in WeatherMan was developed using the object oriented Turbo Vision libraries DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 139 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM provided with Borland Pascal and includes standard pull down menus dialog boxes with push buttons input lines check boxes radio buttons and scrolling dynamic
67. calculate and present summary statistics in both tabular and graphical form It also repeats the range check and data fill functions that are normally done auto matically on IMPORT or EXPORT Analysis is performed on raw filled or gener ated data The ANALYZE menu is shown in Screen 31 on following page and its options described as follows RANGE CHECK AND DATA The Range check and Data fill options listed in Screen 31 offer you another way to perform functions normally done on IMPORT or EXPORT Range check Range check option permits the range checking analysis to be done on the complete raw archive file After the check is done the results are given in an Import Statistics dialog box similar to the dialog box for IMPORT see Screen 23 This re checking process is useful when IMPORT has been done with incorrect range check values or if range checking had been turned off during IMPORT It is also useful for identifying a reasonable set of range check values for a weather station by iteratively setting the range check values and viewing the results DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 179 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM File Station Import Export Generate Analyze Options Quit 14 55 44 Range check Data fill
68. com mon sense ANALYZING MORE THAN ONE CROP ATA TIME The analysis program has the option for analyzing more than one crop at a time To illustrate return to the Analyses main menu Screen 4 again select the option Analyze Biophysical Variables and then choose the variable precipitation PRECIP mm from Screen 7 and pick both crop codes as shown in Screen 21 on second fol lowing page The resulting screen warns you that you have picked multiple crop codes In the sub sequent screen Screen 22 on second following page you have to make a choice as to how the program will analyze these multiple crops There are three options described as follows Option 1 Additive The values of the output variable for all selected crops will be simply added together to provide a grand total by year of the output of interest Option2 Average The values of the output variable for all selected crops will be averaged to provide a single mean value of the output of interest for the relevant calendar year Option 3 Time Series Each value of the output variable for all selected crop codes will be treated independently to provide a time series of the output of interest Which option you choose will depend on the output variable and what you are trying to achieve It is important to understand the differences in these three options For example it may make sense to add total fertilizer applied across different crops it may not m
69. equation SRAD A B n N Rg Reference height m Height of meteorological sensors above ground Wind reference height m Height of anemometer above ground Mean annual temperature C Mean annual average daily temperature Temperature amplitude C Half the range of monthly means for average daily temperature Start of growing season d ean day of year for last frost Duration growing season d ean time from last frost to first frost Export will be dis abled until it has been completed An alternative to manual data entry is to calculate the means from the daily data in the raw archive file Monthly climate statistics are available from several secondary data sources eg Conway et al 1963 NOAA 1974 Rudloff 1981 The last two items in the dia log box shown in Screen 16 allow you to document the data source and the data collection period CALCULATE MONTHLY MEANS The Calculate monthly means option in Screen 14 allows you to compute means from the data in the raw archive file This is a reasonable option if there are sufficient reliable data in the archive file or if there are no available climate data The user is given a warning message if there are less than five years of reli able data in the archive file Calculating monthly means is equivalent to estimat ing the SIMMETEO parameters from the Generate menu see the Generate Menu section in this Chapter The Calculate monthly means opt
70. for plotting box plots The box plot is a way of assessing visually the variability over time of the output variable under consideration For the distribution of the model output variable selected the Oth the lowest single short line 25th the lower of the short lines connected by the vertical bar 50th the star 75th the upper of the short lines connected by the vertical bar and 100th the upper single short line percentiles are plotted The 50th percentile is the median of each output variable distribution not the mean but for symmetrical distributions the median will often not differ greatly from the mean value This graph may be plotted on your printer by pressing the lt P gt key while the graph is on the screen If the graph does not plot you may need to change hard copy settings refer to the section Graphics Hardcopy Setup Depending on the printer and the resolution used there may be a delay of a few seconds while this is done wait for the graph to show on the screen again before continuing DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 96 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence BOX PLOT OF HAR YIELD kg ha 21 3 200k 2 800k 2 400k 2 00k 1 600k 1 200k HAR YIELD
71. from model runs at the user s discretion may be entered into this cultivar file As described under the GenCalc operation see Step 5 in Chapter 4 the genotype coefficient values from the cultivar file are copied to the GCINIT CTR file for display as initial values for the genotype in question The GCINIT CTR file is explained in Figure 1 For the case where a genotype that is not present in the cultivar file is included in an experiment the user must use an editor to enter into the cultivar file a unique number and name and an initial guess at the genotype coefficients DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 206 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype SYSTEM REQUIREMENTS GenCalc will run on any IBM or IBM compatible computer with MS DOS v3 0 and later A hard disk drive with approximately 2 Mb free disk space is required For stand alone installation GenCalc requires the creation if not already present of a directory C DSSAT3 The DSSATPRO FLE described in the Components section of this guide and Appendix B must be placed in this directory GenCalc also uses a number of subdirectories under CA DSSAT3 namely GENOTYPE PEANUT SOYBEAN and WHEAT The GenCalc component programs together with the crop model executable prog
72. generating the DSSAT v2 1 extended weather data set of solar radiation maximum temperature minimum temperature rainfall and PAR e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Format name Prompt for name IBSNAT3 IBSNAT2 Export Options Yearly file naming conventions IBSNAT v 3 IBSNAT 2 Other options X Fill range errors 1 Export data flags Fill missing dates OK 1 Fl Help Stn UFGA Prompt for a format name on export SCREEN 26 Fl Help File Station Import Export Generate Analyze Options Quit 14 19 23 Data Fill Options Data fill method Generate missing data with or SIMMETEO Monthly means and stochastic rainfall generations Solar radiation SRAD and PAR Use method selected above to estimate radiation Estimate radiation from sunshine hours Short lt 7 day data gaps Use method selected above to fill data Estimate missing data using 10 day running mean Model for weather generation WGEN 0 Random seed for generator 1 to 32767 3823 Stn UFGA Us
73. ha Total residue applied kg ha Org soil N at maturity kg ha Org soil C at maturity t ha Number of P applications no Total P applied kg ha Tops P at maturity kg ha Soil P at maturity kg ha e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 125 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis SELECTING ANOTHER INPUT FiLE FOR ANALYSIS Having analyzed one simulation summary file you can choose to analyze anoth er file in Screen 5 If you choose to do so you have the option to print the sum mary results file that you have generated during the session for the particular summary output file Note that a new analysis results SOR file will be pro duced for each summary output file SOS you analyze A sample of part of this file is reproduced in Table 9 This file can be edited as required and the data imported into any application capable of reading ASCII text files for whatever purpose you require INFORMATION AND ERROR M ESSAGES A number of information and error messages are produced by the sequence analysis program In the list that follows each message is preceded by a single digit code and a three digit message error number If the single digit code is 0 then this is a fatal error and the program exits If th
74. if there were only one replicate then the standard deviation would be zero and the mean the minimum and the maximum yield would be identical Press any key to continue and repeat until the Graphics Regression main menu screen appears Screen 10 on following page If at any time you forget which variable you are looking at or which crop components are being analyzed move the cursor bar to the About this plot option to remind yourself Five types of graphs can be plotted described as follows e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 95 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu Analysis file for analysis Trends Over Time Box plot Cumulative function plot Mean Variance plot Variance plot Coefficient of variation plot Regression menu About this plot Quit ies NUMBER m2 NUMBER unit IRRIG APPS IRRIG mm PRECIP mm ET TOTAL mm RUNOFF mm F1 Help 4 71440 SCREEN 10 RAPHICS REGRESSION MAIN MENU OPrioN 1 Box PLOT If this option is selected in Screen 10 a box plot appears Screen 11 on following page by default all years are selected
75. in Screen 4 examine the list of genotype coeffi cients from the GCINIT CTR file which will be displayed in a screen similar to Screen 5 on following page In example Screen 5 the coefficients shown are for maize The coefficients displayed in this screen will be used as initial values for the first run of the calculator Abbreviations are listed in the file GENCOEFF ABV in the c DSSAT3 GENOTYPE directory see Appendix C If satisfied with the coefficients listed press Y to accept the values Or press N to modify the values of one or more of the coefficient s for use in the first model run When N is selected in Screen 5 Screen 6 on 2nd following page is present ed in which you can alter the coefficient values When values for all the coef ficients listed are acceptable press Y at the Screen 5 prompt DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 2142 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype G C CALCULATOR INDIVIDUAL VERSION 3 CROP Maize MODEL GECER930 Name PIO 3382 McCurdy 84aa H610 UH PIO x 304C O Enter NUMBER to select genotype press ENTER for previous screen gt Determine genotype coefficients for one or more experiments calculat
76. in the system is increasing or decreasing over time If it is increasing then this may be an indica tion of long term problems in the system leading to unsustainable performance for example There will be some output variables where no change in variance is expected over VARIANCE PLOT VARIANCE 500 400 300 200 100 Ok Ok Ok Ok Ok VARIANCE PLOT OF HAR YIELD kg ha 21 1917 1923 1929 YEAR 1935 HWAH SCREEN 15 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 101 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis time such as in seasonal rainfall If there is a clear trend in seasonal rainfall and you have used one of the weather generators for example this is clear indication of a serious problem BUT refer to the Appendix Return to the Graphic Regression main menu Screen 10 by pressing any key 5 COEFFICIENT OF VARIATION PLOT The fifth graphics option in Screen 10 allows you to plot the coefficient of varia tion of the selected output variable calculated as s x 100 where s is the stan dard deviation and x the mean against time This type of plot can give a useful
77. kg ha 0 800k 0 400k 1918 1926 1934 1 942k YEAR HWAH SCREEN 11 NOTE To return to the analysis program from any graph press any key OPrioN 2 CUMULATIVE FUNCTION PLOT When this option is selected in Screen 10 output variables by year or season may also be plotted as cumulative function plots Cumulative function plots are sometimes called cumulative probability function CPF plots or cumulative dis tribution function plots these are the same Here the distribution for the cho DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 97 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis sen output variable for each season or year is ordered from smallest to largest and plotted against equal increments of cumulative probability After selecting this option the year selection screen appears Screen 12 below allowing the user to select which years values are to be plotted in this way A maximum of six CPF plots may be graphed at any time to reduce the confusion of the plot You can select or deselect years all at once with the lt gt or the lt gt key or individually with the space bar If more than six years are selected the
78. lists and context sensitive cross referencing online help The user interface functions with both keyboard and mouse OVERVIEW OF FUNCTIONS The WeatherMan s main menu items are FILE STATION IMPORT EXPORT GENERATE ANALYZE OUTPUT AND QUIT The FILE menu accesses a user selectable text editor for data entry and correction accesses the operating system DOS and allows the current weather data directory to be changed A new weather station is selected from the STATION menu The IMPORT EXPORT menu handles the conversion of file formats and units when importing and exporting weather into or from an archive data file Importing data refers to reading a new weather data file and storing the data in an internal archive data file Exporting data refers to creating a new weather data file and writing data from the archive weather data file to a new data file in a prescribed format WeatherMan checks for and flags format or range errors on import On export data flagged as missing or suspect can be replaced with estimates using several methods The GENERATE menu permits generation of synthetic sequences of solar radiation maximum and minimum temperature rainfall and photosynthet ically active radiation for any duration The ANALYZE menu includes the com putation of summary statistics and the ability to display the results using tables or graphs The OPTIONS menu allows the user to customize and save the cur rent configuration The user can te
79. makes sense to turn these output files off unless you need them specifically You should note that if there are multiple simulation control sections in FILEX then the driver program will use the values of NYERS WTHER RSEED FNAME and SUMRY that pertain to the lowest valid simulation control level in the file In other words the value of NYERS the number of replicates in the lowest simula tion control factor level SM 1 is used for all other treatments in Table 2 for example NYERS is set to 20 You could not therefore run an experiment that has 4 replicates for Treatment 1 and 10 replicates for Treatment 2 for instance this would not make much sense anyway For the specific experiment in Table 2 the first treatment is set up as a rainfed treatment see TREATMENTS Thus the IRRIG switch which is a MANAGE MENT option in the SIMULATION CONTROLS block is set to for no irri gation in block 1 i e N 1 For subsequent treatments automatic irrigation is to be applied but the threshold at which water is applied in terms of the percentage of soil water in the profile is changed this is the primary experimental variable In the second SIMULATION DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 10 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis S
80. model operation a G programmed in the model to turn off all prompts d a run number and e a number indicating the treatment to be TABLE 1 REQUIREMENTS FOR CROP Mops UNDER GENCALC Aspect Model name Command line s Input files Output files Experiment details soil and weather files Experiment data file Requirement According to convention e g GECER930 for the generic CERES model With basic information for running the driver input and or simulator components of the model CUL file with genotype coefficients File name linked to the Model EXE name according to convention OVERVIEW OUT file with table of predicted and measured data Standard Jones et al 1994 Standard A files with averages from one or more experi ments Jones et al 1994 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 225 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff DSSAT v3 Volume 3 226 used The latter two items may be omitted in which case the run number will be assigned a value of one and the first treatment encountered will be simulat ed The information should be conveyed as in the example which follows C CRGRO940 EXE XFILE RUN X G13 where CRGRO940 EXE is the name of the simulator XFI
81. names Month 1 6 2 From header file Day 1 9 2 No header lines 2 Variable Units Pos Len Variable Units Pos 1 TMAX P 1 7 l 0 0 2 TMIN oF MOSS M5 8 l DN 6 3 RAIN 1 inch 12 5 9 0 0 4 SUNH urs 4 10 l 1 0 0 5 0 0 1 00 6 1 0 0 12 On MEO I 1 View file I Save format SCREEN 7 Formats option under Import Options you will be presented with a Format Preview dialog box similar to the one shown in Screen 20 Now import the rest of the files as a group using the CCQU format that you just created Go to IMPORT EXPORT Import multiple files to import the rest of the files as a group using the CCQU format that you just created To do this select Add Group in the dialog box presented Enter the file mask CCOU DAT You will then be asked to select a format for the group of files being imported After selecting the format from the list presented when the SELECT FORMAT button is pressed a listing of files as shown in Screen 8 on following page which match the CCQU DAT mask will appear in Screen 8 Select the OK button to import all of the files in the list You will then be asked if you want to calculate monthly means Select No since you will do that in the next step DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 154 WeatherMa
82. necessary for running the DSSAT v3 models The naming convention for these files and for FILEA is described in Volume 2 1 Jones et al 1994 of this book FILEA contains experimental data used to determine the goodness of fit of simulated results The following data must be present in FILEA Peanut Flowering date Maturity date Seed yield Biomass at maturity Seed number m Seed number per pod Seed dry weight First pod date Full pod date Pod yield dry e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 205 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff Maize Silking date Maturity date Grain yield dry Biomass at maturity Grain number m Grain number per ear Grain weight dry Soybean Flowering date Maturity date Grain yield Biomass at maturity no leaves Grain number m Grain number per pod Grain dry weight Wheat Anthesis date Maturity date Grain yield dry Biomass at maturity Grain number m Grain number per spike Grain weight dry The files that contain the genotype coefficients for the models used with the cal culator are named as XXXYYO CUL where is the crop identification code XXX is the model abbreviation and YY is the version number of the model Genotype coefficient values calculated
83. number of runs per rotation i e the number of crop components as specified in FILEX and the crop codes used are shown to the user If there are problems with the summary output file for instance an unequal number of replicates because of model failure for some reason these problems will usually be apparent at this stage Such errors are usually trapped by the analysis program and result warning message to the user and termi nation of the program Note that in the Crop Codes Used portion of Screen 6 each crop code is fol lowed by an integer This is to allow analyses to be made on each separate crop component specified in the original FILEX that controlled the sequence experi DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu FILE EXT ENAME UFGA7803 SQS SEQUENCE ANALYSIS SIMPLE MULTI TREAT FILE m UFGA7804 SQS BN BN YR 1 SB YR 2 EXAMPLE 10 5 RIUS PHI POE SQ RA gt S CS S P Sara a Modify hardcopy options About SUSTAIN2 Exit 1 Help 71440 Mem ScREEN 5 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 92 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence
84. program and indicates the type of file that should be produced to transfer information to the simulator module Where a model does not have one of the components a zero should be entered in place of the missing executable file name s The configuration file also permits the loading of new crop and appropriate data files To do this the appropriate abbreviations for the model and model input files must be inserted in the first field and drive path and file name information in the subsequent fields of the configuration file See Volume 2 1 Jones et al 1994 of this book for standard abbreviations of various crops TABLE 5 EXAMPLE CONTENTS OF THE DSSATPRO FLE FILE MZ DSSAT3 MDRIV940 EXE MINPT940 EXE GECER940 EXE I PN DSSAT3 MDRIV940 EXE MINPT940 EXE CRGRO940 EXE I SB C DSSAT3 MDRIV940 EXE MINPT940 EXE CRGRO940 EXE I WH C DSSAT3 MDRIV940 EXE MINPT940 EXE GECER940 EXE I ZD DSSAT3 MAIZE PND C NDSSAT3NPEANUT SBD C DSSAT3 SOYBEAI WHD NDSSAT3NWHEA TOE C NDSSAT3 TVED EXE CRD C NDSSAT3NGENOTYPE DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 232 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calcula
85. require considerable sorting prior to output The default grouping is monthly summary Table 9 describes these groupings in more detail REPORT The Report option provides a way to view and print the summary SUM files created under Statistics When this option is selected the View Print Statistics dialog box shown in Screen 33 on following page is presented Screen 33 has the same Type and Grouping choices as the Summary Statistics dialog box shown in Screen 32 As a default the same boxes are checked in Screen 33 as were checked in Screen 32 since those summary files already exist If all the selected options have been previously analyzed the files are viewed DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 181 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM View Print Statistics Type of Statistic Grouping X Momments X Monthly summary Percentiles Monthly time series Yearly time series L I Time structure SCREEN 33 sequentially Up to 12 summary files are possible for each type of archive file When the OK button is pressed in Screen 33 the Summary File dialog box shown in Screen 34 on following page is presented The user can scroll both vertically and horizontall
86. screen 1 If FNAME was set to N then the summary output file produced by the model s SUMMARY OUT was renamed to SUMMARY SOS the program tells you that this has been done 2 If the summary output file of the appropriate name does not appear in SEQUENCE LST then SEQUENCE LST is updated and the program tells you that this has been done Press the ENTER key to exit the program or the Y key to return to Screen 2 showing file EXP LST where another experiment can be chosen and simulated You may simulate as many FILEXs as you like one after the other without exiting the driver program Simulation results are stored in the summary output file in this example EBAF1101 SQS the first 20 data records of this file are shown in Table 4 INFORMATION AND ERROR M ESSAGES A number of information and error messages are produced by the sequence dri ver program In the list that follows each message is preceded by a single digit code and a three digit message error number If the single digit code is 0 then this is a fatal error and the program exits if 1 then the program will continue as the error may not be fatal Information messages have code 1 also 0 001 Cannot find experiment file The FILEX experiment listing file could not be found in the current directory DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 84
87. section headed by the SUMMARY keyword TABLE 8 EXPERIMENT DATA Copes Fie DATA CDE SUMMARY SECTION ONLY EXPERIMENTAL DATA CODES SUMMARY SDAT START SIM day Simulation start date YRDOY PDAT PLANTING day Planting date YRDOY ADAT ANTHESIS day Anthesis date YRDOY MDAT MATURITY day Physiol maturity date YRDOY HDAT HARVEST day Harvest date YRDOY DWAP SOWING WT kg ha Planting material wt kg dm ha CWAM TOPS WT kg ha Tops wt at maturity kg dm ha HWAM MAT YIELD kg ha Yield at maturity kg dm ha HWAH HAR YIELD kg ha Yield at harvest kg dm ha BWAH BYPRODUCT kg ha By product harvest kg dm ha HWUM WEIGHT mg unit Wt at maturity mg dm unit H AI UMBER m2 Number at maturity no m2 H UM NUMBER unit Number at maturity no unit IR M IRRIG 5 Irrigation applications no IRCM IRRIG mm Season irrigation mm PRCM PRECIP mm Season precipitation mm TOTAL mm Season evapotranspiration mm ROCM RUNOFF mm Season surface runoff mm DRCM DRAINAGE mm Season water drainage mm SWXM EXTR WATER cm Extr water at maturity cm NIF ITR APPL umber of N applications no NICM TOT N APP kg ha Total inorganic N appl kg ha NFXI FIX kg ha fixed during season kg ha UC UPTAKE kg ha uptake during season kg ha LEACH kg ha leached during season kg ha N N NIAM SOIL IN N kg ha Soil inor N at
88. shows the major menu options available The program does the follow ing Biophysical Analysis Calculates means standard deviations maxima and minima by year and by rotation component for any of the 35 summary output file variables a list of these is shown in Table 7 These can be plotted as box plots cumulative function plots mean variance diagrams coefficient of variation plots or variance plots All graphs can be screen dumped to a printer or output to a file for plotting Economic Analysis Calculates means standard deviations maxima and minima by year and by rotation component of economic returns and plots these as box plots cumulative function plots or mean variance diagrams Prices and costs can be changed within a session and price cost variability can be included in the analysis Simple probability analysis can be carried out where the user specifies a threshold level of economic returns per hectare the probability of the specified sequence failing to meet this threshold in each sequence year is then cal culated and can be plotted Any number of summary output files can be analyzed sequentially during one session with the program The user can also control the way in which hardcopy outputs are produced from the graphics program While these analyses are being performed results are written to a results file The file can be printed from within the program if required At the completion of the session the u
89. undefined read error occurred when attempting to read the file The problem is usually caused by incorrect format of the file 0 005 No valid treatments found in file No valid treatments were found in the FILEX selected 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 17 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas TABLE 4 SUMMARY OUTPUT FILE UFGA7812 SNS First 20 DATA RECORDS ONLY Columns 1 86 SUMMARY UFGA7812SN GAINESVILLE FLORIDA SB IRRIGATION EXPERIMENT O a g E DATES eee pe wo DRY WEIGHTS RP TN ROC FNAM SDAT PDAT ADAT MDAT HDAT DWAP CWAM 1 100 SB RAINFED UFGA0001 78166 78166 78213 78282 78294 67 5880 2 100 SB RAINFED UFGA0001 79166 79166 79212 79284 79296 67 7489 3 100 SB RAINFED UFGA0001 80166 80166 80212 80282 80294 67 6692 4 100 SB RAINFED UFGA0001 81166 81166 81212 81287 81299 67 5931 5 100 SB RAINFED UFGA0001 82166 82166 82212 82283 82295 67 5 6 100 SB RAINFED UFGA0001 83166 83166 83213 83285 83297 67 5802 7 100 SB RAINFED UFGA0001 84166 84166 84213 84285 84297 67 3 8 100 SB RAINFED UFGA0001 85166 85166 85213 85284 85296 67 6392 9 100 SB RAINFED UFGA0001 86166 861
90. update EXP LST yourself or run the File Manager Utility program by opening the SEASONAL Inputs menu items of the DSSAT v3 Shell for the FILEX to be accessible to the seasonal analy sis driver Seasonal analysis model input files created with XCreate have the extension SNX You may also put FILEXs that refer to a particular crop in EXP LST using the Experiment option mode of FILEX creation found in the XCreate program Thus you could run a FILEX called UFGA9201 MZX as long as this file was listed in the listing file EXP LST in the directory that contains the seasonal analysis input files which is usually DSSAT3 SEASONAL see Table 1 for an example of the EXP LST file TABLE 1 SEASONAL EXPERIMENT LisriNG FiLE EXP LST EXPERIMENT LIST FILENAME EXT ENAME UFGA7801 SNX GAINESVILLE SOYBEAN IRRIGATED AND RAINFED UFGA7802 SNX EXAMPLE SEASONAL ANALYSIS SB MZ UFGA7805 SNX PLANTING DATE EXPERIMENT 1978 BRAGG GNV UFGA8201 SNX GAINESVILLE FLORIDA MAIZE IR N FERT UFGA7812 SNX GAINESVILLE FLORIDA SB IRRIGATION EXPERIMENT ow 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Ana
91. v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 WeatherMan WeatherMan WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan FLAGGED DATA COUNT BEGYR Year of first daily weather record BEGDY Day of year of first daily weather record ENDYR Year of last daily weather record ENDDY Day of year of last daily weather record TOTAL Total number of observations VALID Number of observations without error flags MISSING Number of missing values ERROR Number of values with non numeric strings encountered ABOVE Number of values above the maximum BELOW Number of values below the minimum RATE Number of values with greater than maximum change from DSSAT v3 Volume 3 previous day DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 199 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 200 VOLUME 3 4 EFFICIENT CALCULATOR L A HUNT S PARARAJASINGHAM UNIVERSITY OF GUELPH INTERN ATION AL BENCHMARK Sites ETW ORK FOR AGROTECHNOLOGY TRAN SFER Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculato
92. valid values for the same dates th new values will replace the existing values Turning off this option causes the existing value to be retained under the same circumstances The default action is to prompt the user to give a numeric value to replac ach new non numeric string encountered e g TRACE can be replaced with 70 0 for rainfall Turning off this option causes blanks to be treated as missing values and non numeric char acters to be treated as format errors default action is to present Preview Format dialog box Screen 20 every time a file is imported or a format is edited during Import Turning off this option prevents the Preview Format dialog box from being displayed e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 171 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Import Options Format name Prompt for name IBSNAT3 IBSNAT2 Other options X Check ranges X Overwrite existing data X Prompt for non numerics X Preview formats SCREEN 24 AII variables in Screen 25 are in the archive file units except for solar radiation SRAD and photosynthetically active radiation PAR which are in percent of ex
93. value is written on output The default is to fill missing dates with sequential dates and fill variable values If Fill Missing Dates is disabled missing dates in the raw archive file will also exist in the output file The default is to export the error flags as lower case if data are not filled and upper case if they were filled If data are filled and error flags are not exported there will be no indication that the data have been e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 1 75 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM TABLE 8 EXPLANATION OF DATA FiLL OPTIONS Option Explanation Data fill method There are two generic data fill methods for all data Solar radiation and short periods of missing data have additional methods The first method is to generate all missing data with the WGEN or SIMMETEO weather generators see Generator section The second method uses monthly means from the climate file for all variables except rainfall a simple stochastic generator is used for rainfall Using monthly means for rainfall is not an option since it would cause severe problems with any water bal ance model if all days had some rainfall Both methods only fill solar radiation maximum and minimum temperature rainfall and PAR
94. will be asked for a format Type or highlight NEW and select the EDIT button Screen 7 on following page the Edit File Format dialog box will be presented Select the VIEW FILE button in Screen 7 to view the imported file The File Viewer dialog box will be presented with the file CCQU1980 DAT in the viewer Note the number of header lines in the file presented and the starting position and width in characters of the data field for each variable You can select variable names and units from lists by selecting the down arrow icon or by highlighting an input line and pressing the down cursor key When you have entered the format information in the Viewer the Edit File Format dialog box should look like Screen 7 Select the SAVE FORMAT button and save the format as CCQU Then proceed with importing by selecting the OK button If you have enabled the Preview DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 159 WeatherMan DSSAT v3 Volume 3 WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan File Station Import Export Generate Analyze Options Quit 14 39 35 Edit File Format Header output option Format name None IBSNAT v 3 Date First Position Length IBSNAT v 2 Year 1980 1 4 Variable
95. years with low exogenous nitrogen fertilizer input treatment 2 the same with high nitrogen input treatment 3 a maize bean cropping system in alternate seasons with low nitrogen input and so on Replicate a repetition of the same sequence treatment run over the same condi tions apart from weather In a real field experiment two sequence replicates might refer to neighboring plots run with the same weather conditions or the sequences might be replicated with respect to time replicate 1 grown over the period 1981 1985 and replicate 2 from 1986 to 1990 In the same way that computer experi mentation can produce pure replication of single season performance by using multiple year weather sequences so computer experimentation can produce pure replication of sequences where starting conditions and management are identical but variation arises out of different weather sequences over the years of interest and out of any intrinsic stochasticity that may be built into the model DSSAT v3 Volume 2 DSSAT v3 Volume 2 DSSAT v3 Volume 2 DSSAT v3 Volume 2 DSSAT v3 Volume 2 DSSAT v3 Volume 2 DSSAT v3 69 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Variation for a simulation model with no intrinsic stochasticity such as the CERES or CROPGRO models the sources of variation in a computer experiment arise from the following a bet
96. 0 140 8671 619 0671 1934 703 8000 107 3115 596 4885 1935 571 4667 3 2664 574 7330 1936 657 4000 103 6289 553 7711 1937 508 3333 25 2404 533 5731 1938 599 8000 85 6870 514 1130 1939 384 8000 110 5623 495 3623 1940 618 8666 141 5714 477 2952 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 129 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis 1 016 Bad crop code record file Crop code found in the specified file that is not valid 1017 More than 9 crop codes found in file The summary output file contained more than 9 crop codes its current limit 1018 Sequence length exceeds 50 years The summary output file is too long to analyze 0 019 Multiple Treatments Found in File Two or more sequence treatments were found in the summary output file You must choose which one to analyze 1 020 A problem was encountered executing another program The program was not able to execute another program check the free RAM that you have on your computer and increase it if possible by unloading unnecessary resident programs e g a network 1 023 Error in TUKEY FOR An error occurred when calculating percentiles of a distribution 1024 READ Error in file A read error occurred in the specified file check the format of the file 1
97. 026 READ Error in DATA CDE An error occurred when reading the file DATA CDE check that it is complete and the format is correct 1 028 Total number of runs exceeds 1000 See message 031 1 029 Total number of years exceeds 50 See message 031 1 030 Number of replicates exceeds 20 See message 031 1031 File is too big to analyze This error message arises in conjunction with one of three other messages and refers to the fact that the selected summary output file is too large with respect to total number of runs error message 028 number of years error message 029 or number of replicates error message 030 1032 Analysis results written to the file Analysis results have been written to the specified file Program output has been written to the specified file DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 130 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence DSSAT v3 Volume 3 0 038 Error in filename Error in filename specification 1 039 Crop code not matched in price file There was no section in the price file corresponding to the specified crop code you must edit the file so that this section exists 1 040 Read error in price file Check the format of the price file a read error occurred 0 041 Cannot find file S
98. 1 RGANIC MATTER OCAM PO M POC 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 PHOSPHORUS 0 2 O CX CS O 6 X 62 O CX C gt eo Ge C Oo C c0 c lt 9 6 C9 OGOGO x O O Oo x QU 62 6 62 2 gt 2 62 CO gt 12 62 2 6 62 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 19 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas 0 006 Error in SIMULATION CONTROL factor levels The FILEX specified by the user is defective in one of the following ways a was not set or not found b NREPS was not set or not found or c the simulation control factor level with the lowest number specified by the user did not have a corresponding SIMULATION CONTROLS block in the file 0 007 Error in CULTIVAR factor levels in file A cultivar factor level was specified in the selected FILEX that did not have a cor responding cultivar description in the CULTIVARS section of the file 1 008 Model runs completed 1 009 SUMMARY OUT renamed to SUMMARY SNS 1010 SEASONAL LST updated added file Specified summary output file added to t
99. 1 component multiple crop codes are dis cussed below Thus we have now selected to look at maize yields e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 93 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu Analysis START SIM day PLANTING day ANTHESIS day MATURITY day HARVEST day SOWING WT kg ha TOPS WT kg ha MAT YIELD kg ha HAR YIELD kg ha BYPRODUCT kg ha WEIGHT mg unit NUMBER m2 NUMBER unit IRRIG APPS i IRRIG mm PRECIP mm ET TOTAL mm son file for analysis ariables iables 71440 Mem DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu r Analysis Crop codes lason file for analysis dL gum iables 2 FAL les HARVEST day ns SOWING WT kg ha TOPS WT kg ha MAT YIELD kg ha HAR YIELD kg ha BYPRODUCT kg ha WEIGHT mg unit NUMBER m2 NUMBER unit IRRIG APPS IRRIG mm PRECIP mm ET TOTAL mm RUNOFF mm Tl F1 Help 71440 Mem SCREEN 8 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 94 e DSSAT v3 Volume 3 DSSAT v3 Vol
100. 2 0 452 138 34 3 28 3837 39 5 SB 1 46 117 7175 3602 718 0 491 135 26 14 28 3834 39 6 SB 1 47 119 5802 2942 833 0 479 III 17 19 28 3838 39 7 SB1 47 119 6203 3415 611 0 466 141 27 8 30 7 39 8 SB 1 47 118 6392 3210 513 0 455 90 30 6 29 3837 39 9 SB 1 46 119 6986 3280 872 0 486 92 17 23 26 3835 39 10 SB 1 46 116 6980 3214 557 0 487 71 23 9 31 3838 39 11 SB 1 47 118 6632 3329 445 0 449 115 34 1 29 3837 39 12 SB1 46 118 5566 2808 462 0 446 92 29 4 29 3839 39 13 SB 1 47 117 6403 3253 819 0 801 125 19 17 29 3836 39 14 SB 1 46 116 6448 3140 527 0 432 80 24 8 31 3838 39 15 SB 1 47 117 7030 3457 803 0 481 101 24 18 26 3835 39 16 SB 1 46 117 6900 3388 534 0 473 89 28 7 31 3836 39 17 SB 1 46 117 4905 2287 493 0 423 157 29 3 31 3839 39 18 SB 1 46 117 7110 3521 828 0 517 144 23 17 29 3833 39 19 SB 1 46 117 6787 3479 684 0 478 86 20 18 29 3838 39 20 SB 1 46 113 4863 1798 689 0 412 98 16 17 27 3841 39 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 16 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis 1 If FNAME was set to N then the summary output file produced by the model s SUMMARY OUT was renamed to SUMMARY SNS the program tells you that this has been done 2 If the summary output file of the
101. 2 40 2 50 3 10 Step 2 Assume grain price is described by a triangular distribution with minimum value 90 t mode 110 t and maximum value 120 t calculate the follow ing percentiles from the inverse of the triangular distribution percentile 0 0 25 0 50 0 75 0 100 0 price P t 900 1022 107 3 1113 120 0 STEP Multiply each yield by each of the five price percentiles to form a vector of length 35 then order this from smallest to largest w i 1 2 3 4 34 35 P Y 8100 9155 9657 100 17 345 03 37200 STEP 4 From the distribution of P Y described by 35 values calculate by linear interpolation the following percentiles of the distribution so that for 7 values of yield we obtain 7 values of P Y percentile 00 167 333 500 667 833 1000 PY 61 00 153 76 192 73 225 00 254 33 282 00 372 00 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 58 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis APPEN DIX B THREE DECISION CRITERIA The stochastic efficiency rules are an important class of decision criteria and are particularly suited to the analysis of simulation model output These have their basis in Bernoullian utility theory and differ in the assumptions that ar
102. 200 CICBL 5 20 5 4 3 1 5 0 205 3 4 9 8 1 15 0 205 3 4 9 8 1 30 0 170 3 2 43 1 60 0 092 245 OS 1 90 0 065 2 2 4 7 1120 0 066 2 7 4 3 1150 0 055 2 7 4 3 1 180 0 066 2 7 4 3 gt 49 0O gt O 0 0 0 0 0 0 0 0 0 0 0 0 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 229 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 230 PLANTING DETAILS P PDATE EDATE 1 81289 99 IRRIGATION AND WATER MANAGEMENT GI IEFF 1 1 00 GI IDATE IROP 2 82096 1 2 82110 1 2 82117 1 FERTILIZERS INORGANIC GF FDATE FMCD 2 81289 1 81289 1 3 82056 1 RESIDUES AND OTHER R RDATE RCOD 1 81279 1 PLDS PLRS PLRD PLDP 162 0 162 0 0 R 99 99 5 5 RVAL 65 78 70 FACD FDEP FAMN 99 15 60 99 15 90 99 1 90 ORGANIC MATERIALS RAMT RESN RESP RESK RINP RDEP 6500 1 14 99 99 99 15 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype APPENDIX CONFIGURATION FILE DSSATPRO FLE The DSSATPRO FLE file holds path statements to allow the
103. 3 Volume 3 DSSAT v3 204 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype GCRULES FLE COEFETMP and ENDPOINT TMP REQUIREMEN TS procedures for making changes to it In DSSAT v3 GenCalc is located in directory C DSSAT3 For stand alone use the directory in which it is located could be chosen at the user s discretion In all cases however the directory must be refer enced by adding a SET statement to the AUTOEXEC BAT file For a C DSSAT3 location the required statement would be SET DSSAT3 C DSSATS A file containing the rules that govern the sequence of geno type coefficient calculations for different crops This file can be located in any directory but the directory must be refer enced in the configuration file Contents of the file are copied to a temporary file GCRULES CTR that is used dur ing computation Files generated internally at each new model run The indicates a crop code such as WH for wheat The calculated genotype coefficient values are stored in while end point information simulated and measured val ues at completion is stored in ENDPOINT TMP for each coefficient Information in these files is displayed for perusal at the completion of a genotype coefficient calculation ses sion In DSSAT v3 the file designated as FILEA required in addition to those which are
104. 320 D 5200D 940 D 625 U6 000U75 00U IB0063 IBSI80012 1 2 0001 320 D 5200D 940 D 625 U6 000U75 00U 180063 IBWA8301 2 1 1 IB0001 340 5200 940 M 625 U6 000U75 00U IB0063 IBWA8301 2 1 2 0001 340 5200 940 M 625 U6 000U75 00U 0063 IBWA8301 2 1 3 0001 340 5200 940 625 U6 000U75 00U SCREEN 10 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 216 or Genotype Coefficient Calculator 11a 11b 11 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype determined during the iterative calculations of the current session The remaining coefficients should have no associated letter If this is the case press the exit key of your editor and proceed to Step 12 If however the development coefficients were associated with a letter which may occur when the initial coefficients were either close to the maximum minimum val ues or were considerably different from the real values proceed through the following steps Screen 10 shows an an example COEFF TMP file for maize Make a note of the letter and the coefficient value for each coefficient listed which has a letter The letter M indicates that the calculated coefficient reached the maximum or minimum value defined in the GCRULES FLE file while an R indicates that the maximum number of runs spec
105. 43 0 415 5 574 0 722 0 1102 8 1447 0 1939 0 46 0 67 4 89 0 449 0 601 0 694 4 827 0 1940 0 80 0 117 2 466 0 593 0 811 0 1126 2 1216 0 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 128 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Regression of Means Output Type Exponential constant 78 2470 gradient 0372 r squared 6053 S 236 041200 SE of gradient 4 978952 T test of gradient t 0075 prob of greater value 994 Year HAR YIELD kg ha Residual Estimate TITT 2223 8670 821 9390 1401 9280 1912 1087 5330 263 2627 1350 7960 1913 1401 6670 100 1375 1301 5290 1914 1242 3330 11 7258 1254 0590 1915 1206 8000 1 5211 1208 3210 1916 1323 1330 158 8826 1164 2510 1917 971 6000 150 1877 1121 7880 1918 913 8666 167 0073 1080 8740 919 1107 2000 65 7482 1041 4520 920 1291 9330 288 4659 1003 4670 1921 595 1334 371 7352 966 8685 1922 971 8666 40 2621 931 6045 1923 916 4667 18 8397 897 6270 1924 853 8666 11 0217 864 8884 1925 935 8000 102 4562 833 3438 1926 693 2000 109 7501 802 9501 1927 1129 7330 356 0688 773 6645 1928 304 2667 441 1804 745 4470 1929 740 5333 22 2745 718 2588 1930 650 4667 41 5955 692 0621 1931 694 8666 28 0454 666 8212 1932 911 0667 268 5660 642 5006 1933 478 200
106. 50 00K 60 00K VARIANCE MONEY HA ALL TRTS 1 SCREEN 27 In terms of strategy analysis the mean Gini dominance calculations are shown in Screen 22 of the main text As noted above the dominant strategy also has the highest mean monetary return In mean Gini dominance this will always be the case but it will sometimes happen that the variability associated with this high mean treatment will be so great that it will be joined in the efficient set by anoth er treatment with lower mean but lower variability In such a case no decision can be made with respect to which of the efficient treatments is better without knowing more about the preferences and attitudes of the particular decision maker In any case you should always remember that there is a variety of 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 63 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas sources of error in simulation experiments errors in input data and errors in model specification to name but two Treatments with similar economic or even biological performance are likely to be statistically indistinguishable in terms of the model s inherent errors in any case there is then little point in ap
107. 618 87 356 37 Percentiles Year Oth 10th 25th 50th 75th 90th 100th 1911 0 1708 0 1786 2 1903 0 2309 0 2403 0 2761 2 3041 0 1912 0 517 0 647 2 781 0 1167 0 1298 0 1446 8 1992 0 1913 0 480 0 606 2 999 0 1748 0 1869 5 1969 6 1987 0 1914 0 183 0 442 0 791 0 1142 0 1688 5 2082 2 2530 0 1915 0 1324 0 418 0 794 0 1294 0 1594 0 1923 2 1970 0 1916 0 164 0 521 6 897 5 1346 0 1812 5 2026 6 2102 0 1917 0 80 0 239 8 531 5 829 0 1563 5 1812 6 195550 1918 0 114 0 432 6 513 5 882 0 1249 0 1296 2 2011 20 L919 0 400 0 499 0 590 0 911 0 1411 5 1969 2 2467 0 1920 0 129 0 719 0 965 0 1325 0 1640 5 1763 4 2363 0 1921 0 109 0 131 0 287 0 669 0 842 0 978 6 1261 0 922 0 68 0 251 2 592 5 1098 0 1290 0 1418 8 2370 0 1923 0 84 0 133 4 588 0 930 0 1226 0 1571 6 2026 0 1924 0 83 0 247 8 579 0 912 0 1232455 1393 6 1404 0 1925 0 129 0 545 0 736 5 1018 0 1130 0 1324 6 1541 0 1926 0 88 0 131 6 424 0 660 0 831 0 1368 6 1697 0 1927 0 115 0 581 0 456 5 1264 0 1509 5 1714 2 1917 0 1928 0 670 82 6 90 5 11750 430 0 783 8 1123 0 1929 0 68 0 96 0 331 5 740 0 1012 5 1445 2 1552 0 1930 0 94 0 219 6 496 0 558 0 780 5 1068 6 1704 0 1931 0 90 0 217 6 417 0 64 74 0 934 5 1215 2 1280 0 L932 0 88 0 296 2 605 0 1019 0 1205 0 1476 4 1705 0 1933 0 36 0 74 2 101 5 52740 71 210 939 8 1051 0 1934 0 43 0 96 4 396 0 701 20 911 5 1220 4 2116 0 1935 0 25 0 89 4 257 0 640 0 748 0 966 6 1338 0 1936 0 129 0 201 6 421 5 610 0 749 5 1106 0 1693 0 1937 0 54 0 74 2 100 5 390 0 749 5 1189 6 1488 0 1938 0 47 0 1
108. 66 86212 86285 86297 67 6986 0 100 SB RAINFED UFGA0001 87166 87166 87212 87282 87294 67 6980 1 100 SB RAINFED UFGA0001 88166 88166 88213 88284 88296 67 6632 2 100 SB RAINFED UFGA0001 89166 89166 89212 89284 89296 67 5566 3 100 SB RAINFED UFGA0001 90166 90166 90213 90283 90295 67 6403 4 100 SB RAINFED UFGA0001 91166 91166 91212 91282 91294 67 6448 5 100 SB RAINFED UFGA0001 92166 92166 92213 92283 92295 67 7030 6 100 SB RAINFED UFGA0001 93166 93166 93212 93283 93295 67 6900 7 100 SB RAINFED UFGA0001 94166 94166 94212 94283 94295 67 4905 8 100 SB RAINFED UFGA0001 95166 95166 95212 95283 95295 67 7110 9 100 SB RAINFED UFGA0001 96166 96166 96212 96283 96295 67 7 20 100 SB RAINFED UFGA0001 97166 97166 97212 67279 97291 67 4863 Columns 87 176 Sia qaspa Sesha Sra atau WATER wc sis hea 9V 5 sa N TROGEM HWAM HWAH HWUM H AM H UM IR M IRCM PRCM ETCM ROCM DRCM SWXM NI M NICM 3565 3565 3924 71 2083 2 05 0 0 834 509 35 365 84 0 0 3166 3166 3526 43 2218 2 05 0 0 904 489 38 419 117 0 0 2939 2939 2992 63 806 2 05 0 0 502 452 1 70 138 0 0 3602 3602 3573 83 972 2 05 0 0 718 491 8 243 135 0 0 2942 2942 2860 74 695 2 05 0 0 833 479 11 390 111 0 0 3415 3415 2788 65 2070 2 05 0 0 611 466 13 150 141 0 0 3210 3210 3181 66 934 2 05 0 0 513 455 9 117 90 0 0 3280 3280 3706 77 849 2 05 0 0 872 486 22 431 92 0 0 3214 3214 3766 71 878 2 05 0 0 557 487 8 153 71 0 0 3329 3329 3304 70 953 2 05 0 0 445 449 1 39 115 0 0
109. AT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT 239 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 240 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT 241 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 242 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT 243 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 244
110. ATION OF ERROR 60055 USED FLAG SUSPECT OR ERRONEOUS DATA 170 TABLE 6 EXPLANATION OF IMPORT OPTIONS 171 TABLE 7 EXPLANATION OF EXPORT OPTIONS 175 TABLE 8 EXPLANATION OF DATA FiLL OPTIONS 176 TABLE 9 EXPLANATION OF STATISTICS TIME GROUPINGS 182 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSS X DSSAT v3 Volume 3 VOLUME 3 4 GENOTYPE COEFFICIENT CALCULATOR CHAPTER ONE INTRODUCTION PROGRAM COMPONENTS SYSTEM REQUIREMENTS CHAPTER TWO GETTING STARTED CHAPTER THREE RUNNING GENCALC DETERMINE GENETIC COEFFICIENTS DISCUSSION REFERENCES APPENDIX GENCALC MODEL REQUIREMENTS APPENDIX B CONFIGURATION FILE DSSATPRO FLE APPENDIX C ABBREVIATIONS FIGURE FiGuRE 1 GENCALC COMPONENTS TABLES TABLE 1 REQUIREMENTS FOR CROP MODELS TO WORK UNDER GEN CALC TABLE 2 EXAMPLE OF A CULTIVAR GENOTYPE COEFFICIENT FILE TABLE 3 EXAMPLE OF THE REQUIRED SECTION OF THE OVERVIEW OUT Fite TABLE 4 EXAMPLE OF AN EXPERIMENT DETAILS FILE TABLE 5 EXAMPLE CONTENTS OF THE DSSATPRO FLE Fite e DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume 201 203 203 207 209 211 211 221 223 225 231 233 204 225 227 228 229 232 05541 v3 Volume XI DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DS
111. Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis APPEN DIX A COMBINING YIELD AND PRICE DISTRIBUTIONS If the user specifies price and cost variability the Seasonal Analysis program pro ceeds by combining the simulated distributions of biophysical outputs with the user specified distributions of costs and prices The method used is illustrated below for a simulated yield distribution made up of seven replicates Gross margin or net return calculations involve simple algebra in the simplest case no more than the following Return Price Yield Costs of production The simulation models can produce a distribution of yields If price is defined as a distribution also then a way has to be found to estimate the new distribution for the quantity price times yield Similarly distributions may have to be sub tracted from each other to produce the final distribution of returns per hectare The analysis program does this as follows The values of the relevant biophysical outputs yield residue and so forth for each replicate are combined algebraically with the inverse of the appropriate ana lytical cumulative probability function that is used to describe the particular cost or price using five equi distant percentiles of the CPF the Oth 25th 50th 75th and 100th percentiles The inverse of a cumulative probability distribution is an algebraic expression whereby the value of the random variable associa
112. C NDSSAT3NECONOMICNUFGA7812 PRI Use C DSSAT3 ECONOMIC DEFAULT PRI Select a new price file Exit Fl Help 214240 Mem SCREEN 16 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 35 seasonal Analysis Format and Content of Price Cost Files Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas The format of the default price cost file DEFAULT PRI for seasonal analysis is shown in Table 5 together with a list ing of the headers that appear in the file The eleven prices and costs that are current ly included are as follows Cost or Price Units 1 Price of harvest product e g grain t 2 Price of harvest byproduct t 3 Base production costs ha 4 Nitrogen fertilizer cost kg 5 Cost per fertilizer application 6 Irrigation costs mm 7 Cost per irrigation application 8 Seed cost kg 9 Cost of organic amendments t 10 Phosphorus fertilizer cost kg 11 Cost per P fertilizer application Associated Model Output yield t ha byproduct yield t ha N applied kg ha No of N applications irrigation applied mm No of irrigation applications seed sown kg ha residue applied t ha P applied kg ha No of P applications Note that cos
113. DSSAT version 3 VOLUME 3 A Decision Support System for Agrotechnology Transfer Volume 3 DSSAT version 3 Editors Gordon Y Tsuji Goro Uehara Sharon Balas International Benchmark Sites N etwork for Agrotechnology Transfer University of Hawaii Honolulu Hawaii 5 The International Benchmark Sites Network for Agrotechnology Transfer is a network consisting of the contractor University of Hawaii its subcontractors and many global collaborators Together they hav created a network of national regional and international agricultural research for the transfer of agrotechnology among global partners in both developed and lesser developed countries From 1982 to 1987 IBSNAT was a program of the U S Agency for International Development under a cost reimbursement Contract No DAN 4054 C 00 2071 00 with the University of Hawaii From 1987 to 1993 the contract was replaced with a Cooperative Agreement No DAN 4054 A 00 7081 00 between the University of Hawaii and USAID Correct Citation G Y Tsuji G Uehara and S Balas eds 1994 DSSAT v3 University of Hawaii Honolulu Hawaii Copyright University of Hawaii 1994 All reported opinions conclusions and recommendations are those of the authors contractors and not those of the funding agency or the United States govern LIBRARY OF CONGRESS 94 19296
114. DSSAT v3 Volume 3 DSSAT v3 Volume 187 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Colors Group Item Foreground 4 Desktop A Color Menus Dialogs Background Text Text Text Y Text Text Text NOTE Must select Custom 1 palette to retain colors OK I K ScREEN 41 native mode or color palette gives a better screen appearance The LCD and plasma screens used on some portable computers often look better using a Black and White palette than with the automatically detected color mode In addition the Colors option in Screen 39 allows you to create a custom color palette You may change the WeatherMan program default colors by doing the following 1 select the Colors option and choose your custom colors see Screen 41 above and the section Colors below 2 select the Display mode option Screen 39 and select Custom palette in Screen 40 3 press the OK but ton and 4 select the Update menu option from the OPTIONS menu From that point on whenever WeatherMan is started your customized colors will be active COLORS The Colors option gives you access to the Colors dialog box which permits the default colors for the desktop background menus and dialog boxes to be changed In order for the
115. DUGF P5 37 000 136 000 MATURITY DATE FIABORT F2UNDO F3PRINT F4MARK F5CUT F6PASTE F7EXIT F8DEL EOL F9DEL L F10UDEL L I SCREEN 11 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 217 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff 116 11h Exit Screen 11 by pressing the lt F7 gt key You will again be returned to Screen 9 Press the lt gt key in Screen 9 to continue Screen 12 below will be presented Press the lt G gt key to return to the geno type selection screen Screen 4 Choose the same genotype as selected before in Screen 4 If the letter from the COEFF TMP file Screen 10 for a coefficient was an R respond with an N to the prompt Use these for first simulation of new run Then in the dialog box which appears change the value for the appro priate coefficient Increase the value by approximately 30 if the simulated value was less than the measured decrease the value similarly if the inverse Then proceed as from Step 6 If the letter was an M proceed as from Step 5 but when the Coefficient Selection screen Screen 6 is reached press the ENTER key and edit the rules file For the coefficient s in question reduce the m
116. Description Total daily solar radiation Maximum daily air temperature Minimum daily air temperature Total daily precipitation Dew point temperature or vapor pressure Total daily wind run Total daily sunshine hours Total daily photosynthetic radiation Dry bulb air temperature at 9 am Wet bulb air temperature at 9 am Total daily pan evaporation Default unit MJ m ec C C SHrs Mol m2 vi Other units cal cm W h m F K F K cm inch F K Pa kPa MPa mbar bar Miles m s Knots n N Hrs oF cm inch DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 158 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan INVERT The Invert option is a utility that reverses the order of lines in a text file required for the output of some dataloggers which record in reverse chronologi cal order CHANGE Dir The Change dir menu option will change the current directory to another weather data directory The Change Directory dialog box is given in Screen 13 below Change Directory Directory name C DSSAT3 WEATHER lt Directory tree Drives Ca DSSAT3 WEATHER CLIMATE Chdir Revert T
117. ENCE ANALYSIS RESULTS Fie EPAF1101 SQR SQ ANALYSIS LOG 110150 Date 21 Apr 1994 Time 10 45 13 Input file C DSSAT3 SEQUENCE EBAF1101 SQS Analysis of Treatment Number 1 Input File Analysis Experiment Code EBAF 11 01 Number of runs 900 Number of reps 15 Starting year 1 Ending year 1941 Runs per rep 60 Runs per rotation 2 Calculated Values Variable HAR YIELD kg ha M71 Year Mean st 1911 0 2223 87 1912 0 1087 53 1913 0 1401 67 1914 0 1242 33 1915 0 1206 80 1916 0 1323 13 1917 0 971 60 1918 0 913 87 1919 0 1107 20 1920 0 1291 93 1921 0 595 13 1922 0 971 87 1923 0 916 47 1924 0 853 87 925 0 935 80 1926 0 693 20 1927 0 1129 73 1928 0 304 27 1929 0 740 53 1930 0 650 47 1931 0 694 87 1932 0 911 07 Dev 405 394 559 674 587 614 621 500 631 08395 360 588 566 65 363 475 510 338 500 402 376 485 444 99 24 15 78 82 01 63 09 99 44 27 37 53 33 74 32 10 52 82 09 26 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 127 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis 1933 0 478 20 360 78 1934 0 703 80 540 22 1935 0 571 47 316 15 1936 0 657 40 406 53 193720 508 33 476 07 1938 0 599 80 384 26 1939 0 384 80 278 99 1940 0
118. ENCE LST the listing file that contains the available model summary output files in the current directory Table 3 These are presented to the user see Screen 5 Note that the entries in SEQUENCE LST do not have to match the entries in EXP LST either in number or in order you may have run and analyzed the experi ments in a different order for example Use the mouse or cursor keys to select the file EBAF1101 SQS in Screen 5 The pro gram then gives the user the opportunity to change the name of the analysis results file By default this will be the same as the summary output file except the last let ter of the extension will be R for results Note that file names are preserved across all three steps of the sequence analysis procedure if the model FILEX is DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 90 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence ECISION SUPPORT SYSTEM FOR AGROTECHNOLOGY TRANSFER g DATA MODEL ANALYSES TOOLS SETUP QUIT S Seasonal 0 Sequence Create Inputs Simulate Outputs Analyze Analyze model outputs Tloe moves through menu choices ESC moves to higher menu level Version 3 0 SCREEN 3 EBAF1101 SQX then simulation resu
119. EX experimental listing file was found but it contains no valid entries 1 003 Cannot find file The specified file cannot be found non fatal 0 004 Error reading An undefined read error occurred when attempting to read the file The problem is usually caused by incorrect format of the file 0 005 No valid treatments found in file No valid treatments were found in the FILEX selected 0 006 Error in SIMULATION CONTROL factor levels The FILEX specified by the user is defective in one of the following ways FNAME was not set or not found NREPS was not set or not found or the simu lation control factor level with the lowest number specified by the user did not have a corresponding SIMULATION CONTROL block in the file 0 007 Error in CULTIVAR factor levels in file A cultivar factor level was specified in the selected FILEX that did not have a cor responding cultivar description in the CULTIVARS block of the file 1 008 Model runs completed 1 009 SUMMARY OUT renamed to SUMMARY SQS 1010 SEQUENCE LST updated added file Specified summary output file added to the listing file 0011 A required file was not found aborting This usually refers to the absence of the file DSSATPRO FLE which could not be found 0 012 Excessive path length error You need to reduce the path length as specified DSSATPRO FLE for the crop model cc e g MZ Path lengths as specified in the DSSATPRO FLE must be less than 36 ch
120. F1 Help 71440 Mem SCREEN 26 Sequence DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Format and Content of Price Cost Files The format of the default price cost file DEFAULT PRO for sequence analysis is shown in Table 5 together with a listing of the headers that appear in the file The eleven prices and costs that are currently included are as follows Cost or Price Units Associated Model Output 1 Price of harvest product e g grain t yield t ha 2 Price of harvest byproduct t byproduct yield t ha 3 Base production costs ha 4 Nitrogen fertilizer cost kg N applied kg ha 5 Cost per N fertilizer application No of N applications 6 Irrigation costs mm irrigation applied mm 7 Cost per irrigation application No of irrigation applications 8 Seed cost kg seed sown kg ha 9 Cost of organic amendment t residue applied t ha 10 Phosphorus fertilizer cost kg P applied kg ha 11 Cost per P fertilizer application No of P applications Note that costs and prices can be negative or positive this might apply particularly to harvest byproduct where a negative income is posited it costs the farmer money to remove the b
121. LE RUN is the name of the file containing the experimental details X is the experiment details file type G is the simulator mode switch G indicates that all prompts should be switched off 1 is the run number and 3 is the number of the treatment to be used for simulation For the inputs component where present the required information encompass es the name of the file to be generated its type an inputs program mode switch and reference numbers for the experiment and treatment to be used This required information should be conveyed as follows C MINPT940 EXE XFILE RUN X G13 where MINPT940 EXE is the name of the inputs program XFILE RUN is the name of the file to be generated to transfer data to the simulator X is the type of transfer file to be generated G is the inputs mode switch G indicates that all prompts should be switched off 1 is the experiment number as in the EXP LST file and 3 is the treatment number For models which need to run with their own driver the command line would need to be structured as in the example below C MDRIVE940 EXE MINPT940 EXE CRGRO940 EXE X G 3 where MDRIV940 EXE is the name of the model driver 940 is the name of the inputs program reader CRGRO940 EXE is the name of the simu lator X is the type of transfer file is the mode switch for input and simula tor components 1 is the experiment number as in the EXP LST file and 3 is
122. MATIC 70 4 1 0 0 AUTOMATIC 50 5 1 0 0 AUTOMATIC 30 6 1 0 0 AUTOMATIC 10 CULTIVARS C CR INGENO CNAME 1 SB IB0001 BRAGG FIELDS L ID F ec ec ELD WSTA FLSA UFGA0001 UFGA7801 99 NITIAL PCR ICBL 1 1 1 SB 5 15 30 45 60 90 20 50 80 CONDITIONS ICDAT 78166 100 SH20 4 0 086 0 6 0 086 0 6 0 086 0 6 0 086 0 6 0 086 0 6 0 076 0 6 0 076 0 6 0 130 0 6 0 258 0 6 PLANTING DETAILS PDATE EDATE 1 78166 99 PPOP 29 9 ICND 99 SNO3 L k 29 9 FLOB 0 ICRN 1 00 PLME 5 LEVELS L SA IC MP MF FLDT 000 1 00 PLDS R RESIDUES AND OTHER ORGANIC MATERIALS GR RDATE RCOD 1 78166 001 RAMT 1000 SIMULATION CONTROLS GENERAL QN 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 GE OPTIONS OP METHODS ME MANAGEMENT MA OUTPUTS L OU NYERS 20 WATER WTHER VI PLANT R FNAME at RESN 0 80 NREPS 1 Y INCON M IRRIG N OVVEW N RESP 9 00 START SYMBI LIGHT FERTI SUMRY A RESK 9 00 SDATE 78166 PHOSP N EVAPO R RESID R FROPT 10 FLORIDA SB IRRIGATION EXPERIMENT F 0 1 1 0 1 0 1 1 0 1 0 1 1 0 1 0 1 1 0 1 Q 1 1 0 1 0 1 1 0 1 FLDD
123. MINANCE SD ANALYSIS For two risky prospects A and B A dominates B by first order stochastic domi nance FSD if the Cumulative Distribution Function CDF of gains from A lies to the right of the CDF of B over the entire probability interval 0 to 1 If the CDFs of A and B intersect then no dominance by FSD can be established 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 59 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas If however the area between the two CDFs below the point of intersection is greater than the area between the two CDFs above the point of intersection then A dominates B by second order stochastic dominance SSD otherwise no domi nance can be established and both A and B are second order efficient For FSD no assumptions are made about the attitude of the decision maker to risk for SSD it is assumed the decision maker is averse to risk to some unknown degree No assumptions need be made about the distributional properties of the random variables either DOMINANCE M GD ANALYSIS For two risky prospects A and A dominates B by MGD if E A gt E B and E A G A gt E B G B with strict inequality for one of these expressions where E
124. N N N N N N N 8 AUTOMATIC MANAGEMENT GN PLANTING PFRST PLAST PH2OL 200 PH20D PSTMX PSTMN 2 PL 155 200 40 100 30 40 10 N IRRIGATION IMDEP ITHRL ITHUR IROFF IMETH IRAMT IREFF 2 IR 30 90 100 001 001 10 0 75 MDEP NMTHR NAMNT NCODE NAOFF 2 NI 30 50 25 001 001 GN RESIDUES RIPCN RTIME RIDEP 2 RE 100 1 20 GN HARVEST HFRST HLAST HPCNP HPCNR 2 HA 0 365 100 0 GN GENERAL YERS NREPS START SDATE RSEED 5 6 GE 20 1 5 78166 9875 OPTIONS WATER NITRO SYMBI PHOSP 5 DISES 6 OP Y X Y N N N N METHODS WTHER INCON LIGHT EVAPO INFIL PHOTO 6 ME W M R 5 gt N MANAGEMENT PLANT IRRIG FERTI RESID HARVS 6 MA R A R R M N OUTPUTS FNAME OVVEW SUMRY FROPT GROTH CARBN WATER NITRO MINER DISES LONG 6 OU Y N A 10 N N N N N N N DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 8 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis 8 AUTOMATIC MANAGEMENT N PLANTING PFRST PLAST PH20L 200 PH20D PSTMX PSTMN 6 PL 155 200 40 100 30 40 10 N IRRIGATION IMDEP ITHRL ITHUR IROFF IRAMT IREFF 6 IR 30 10 100 001 001 10 0 75 N NITROGEN NMDEP NMTHR NAMNT NCODE NAOFF 6 NI 30 50 25 001 001 N RESIDUES RI
125. PCN RTIME RIDEP 6 RE 100 1 20 N HARVEST HFRST HLAST HPCNP HPCNR 6 HA 0 365 100 0 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas FNAME FNAME is one of the OUTPUTS switches found in the SIMULATION CON TROLS blocks If this switch is set to N then the summary output file from the model runs will be named SUMMARY SNS If FNAME is set to Y then the summary output file name will be the same as the model FILEX name except that the last letter of the extension will be changed from X to S Thus for the experiment FILEX shown in Table 2 which has the name UFGA7812 SNX the summary output file will be named UFGA7812 SNS since the switch FNAME is set to Y SUMRY SUMRY is one of the OUTPUTS switches found in the SIMULATION CON TROLS blocks For seasonal simulations this controller should always be set to A append otherwise the summary output file will be successively overwrit ten by each treatment and earlier outputs will be lost In Table 2 the other OUT PUT switches are set to N to prevent within season output from the models Since seasonal simulations with many replicates can produce prodigious quanti ties of output data it
126. S 4 FiGuRE 2 MENU OPTIONS FOR THE SEASONAL ANALYSIS PROGRAM 23 FiGURE STOCHASTIC PRICE Cosr DISTRIBUTION S 38 TABLES TABLE 1 SEASONAL EXPERIMENT LisTING Fite EXP LST 5 TABLE 2 PART INPUT Fie UFGA7812 SN X 7 TABLE SUMMARY OuTPUT LISTING Fie SEASONAL LST 13 TABLE 4 SuMMARY OuTPuUT Fie UFGA7812 SNS First 20 Data RECORDS ONLY 18 TABLE 5 PRice Cost Fite DEFAULT PRI 37 TABLE 6 SAMPLE SECTION OF GRAPH INI 45 TABLE 7 PRINTER TYPES SUPPORTED BY THE GRAPHICS PROGRAM 46 TABLE 8 EXPERIMENT DATA Copes Fie DATA CDE SUMMARY SECTION ONLY 47 TABLE 9 PART SEASONAL ANALYSIS RESULTS Fie UFGA7812 SNR 9 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSS VI VOLUME 3 2 SEQUENCE ANALYSIS 67 CHAPTER ONE INTRODUCTION 69 SYSTEM REQUIREMENTS 70 CHAPTER TWO CREATING MODEL INPUT FILES FOR SEQUENCE ANALYSIS 73 FILEX FOR SEQUENCE ANALYSIS 7 9 CONTROLS 78 SIMULATION CONTROL OPTIONS 79 CHAPTER THREE RUNNING SEQUENCE ANALYSIS EXPERIMENTS 81 OVERVIEW 81 AN EXAMPLE 8 2 INFORMATION AND ERROR MESSAGES 84 CHAPTER FOUR ANALYZING SEQUENCE ANALYSIS EXPERIMENTS 89 OVERVIEW 89 EXAMPLE 90 ANALYZE BIOPHYSICAL VARIABLES 93 GRAPHICS REGRESSION MAIN MENU 96 ANALYZING MORE THAN ONE CROP AT A TIME 107 ANALYZE ECONOMIC VARIABLES 112 Economic EvALUATION Main IMENU 112 Mobpirv HARDCOPY OPTIONS 121 SELECTING ANOTHER INPUT FILE FOR
127. SAT v3 Volume 3 DSSAT v3 V 28 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis DSSAT Version 3 0 Cropping Season Analysis Tool Main Menu Analysis HAR YIELD kg ha 16 for analysis Box plot Cumulative function plot Mean Variance plot Quit 8 MAT YIELD kg ha 9 HAR YIELD kg ha 4 10 BYPRODUCT kg ha 11 WEIGHT mg unit 12 NUMBER m2 13 NUMBER unit 14 IRRIG APPS 15 IRRIG mm 16 PRECIP mm 17 ET TOTAL mm 18 RUNOFF mm Tl F1 Help 214240 Mem 1 1 1 1 1 1 1 1 SCREEN 10 bution of the variable for each treatment selected the Oth the lowest single short line 25th the lower of the short lines connected by the vertical bar 50th the star 75th the upper of the short lines connected by the vertical bar and 100th the upper single short line percentiles are plotted Visually these box plots are sometimes clearer than cumulative probability curves if there are many treat ments The 50th percentile is the median of each output variable distribution not the mean but for symmetrical distributions the median will often not differ greatly from the mean value Note the effect of irrigation treatment on the distri bution of soybean yield This graph may be plotted on yo
128. SAT v3 Volume 3 DSS xii VOLUME 3 1 SEASONAL ANALYSIS THORNTON HOOGENBOOM P W WILKENS J W JONES IN TERN ATION AL FERTILIZER DEVELO PM EN T C EN TER UNIVERSITY GEORGIA UNIVERSITY OF FLORIDA INTERNATIONAL BENCHMARK Sites ETW ORK FOR AGRO TECHN O LOGY TRANSFER Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 2 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis CHAPTER ONE INTRODUCTION The Seasonal Analysis program allows the user to perform comparisons of simu lations obtained by running the DSSAT v3 crop models with different combina tions of inputs A simulation experiment which may be made up of many treat ments and may be replicated through time using different weather years is set up by the user the models are run and the user can then analyze the results using the seasonal analysis program The seasonal aspect of the driver and analysis programs relates to the fact that what is being run are experiments of single crop ping seasons while these may be replicated there are n
129. STARTING WEATHERMAN WEATHERMAN USER INTERFACE Common DIALOG BOXES STEPS FOR CLEANING AND CONVERTING WEATHER DATA CHAPTER THREE INTRODUCTORY TUTORIAL BROWSE THE MENU AND ONLINE HELP SELECT A NEW STATION IMPORT DAILY WEATHER FILES CALCULATE WEATHER GENERATOR PARAMETERS GENERATE WEATHER DATA CALCULATE STATISTICS CALCULATE STATISTICS FOR THE GENERATED DATA GRAPH OBSERVED DAILY TEMPERATURE GRAPH STATISTICS FOR OBSERVED AND GENERATED DATA ExPoRT DAILY WEATHER FILES CHAPTER FOUR W EATHERMAN REFERENCE GUIDE VARIABLES Fite MENU STATION MENU IMPORT EXPORT MENU GENERATE MENU ANALYZE MENU OpTIONS MENU Quit MENU DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 137 139 139 140 140 141 141 141 144 147 149 149 149 150 152 152 153 153 153 154 155 L5 157 157 160 164 173 179 186 192 DSSAT v3 Volume 3 DSSAT v3 Volume X REFERENCES 193 APPENDIX A ABBREVIATIONS USED IN W EATHERM AN 195 DAILY WEATHER VARIABLES 195 SuMMARY FiLES 195 APPENDIX B CLIMATE FILE FORMAT 197 TABLES TABLE 1 USER INTERFACE ITEMS AND THEIR FUNCTIONS IN WEATHERMAN 142 TABLE 2 List OF ESSENTIAL STEPS FOR CREATING A COMPLETE DAILY WEATHER DATA FILE WITH THE CORRECT FORMAT AND UNITS FROM RAW DATA WEATHERMAN 148 TABLE 3 WEATHERMAN VARIABLES AND ASSOCIATED UNITS 158 TABLE 4 WEATHER STATION INFORMATION REQUIRED FOR A NEW STATION 162 TABLE 5 EXPLAN
130. Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis 1 026 READ Error in DATA CDE An error occurred when reading the file DATA CDE check that it is the format is correct 1 027 variances are zero The variances for the selected treatments are zero 1 028 Total number of runs exceeds 600 See message 031 1 029 Number of treatments exceeds 20 See message 031 1 030 Number of replicates exceeds 30 See message 031 1081 File is too big to analyze Seasonal Analysis Seasonal Analysis complete and This error message arises in conjunction with one of three other messages and refers to the fact that the selected summary output file is too large with respect to total number of runs error message 028 number of treatments error message 029 or number of replicates error message 030 1032 Analysis results written to the file Analysis results have been written to the specified file 1 033 Output written to Program output has been written to the specified file 1 034 For graphics choose variables one at a time To produce graphs of model outputs choose single variables 1 035 Output already written to Output for this variable has already been written to the analysis results file 1 036 For graphics choose single variables As for message 034 1 037 The program has no access to a price file Access one 0 038 Error in filename Error in filename spec
131. Selaa 2199 175 1 16 5 2 990 0 250 0 500 8 18 8 32 9 201 9 16 2 29920 0 250 0 500 9 16 6 31 6 20 6 136 2 11 3 99 0 0 250 0 500 10 14 6 28 6 109 5 56 9 6 5 990 0 250 0 500 11 1270 24 5 495 59 3 6 0 99 0 0 250 0 500 12 9719 2155 VI 19 69 3 6 8 99 0 0 250 0 500 Source Calculated from daily data lst year 1980 No years 25 Fl Help Stn UFGA Mean solar radiation MJ m d for month SCREEN 16 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 163 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM where daily hours of bright sunshine GUNH are available If SUNH data are not available in the archive file Calculate monthly means will use the Angstrom coefficients entered in the Station Data dialog box as defaults see Screen 15 If SUNH is available but daily radiation SRAD is not then monthly Angstrom coefficients will be estimated by the relationship proposed by Rietveld 1978 If sufficient gt 5yr records with both SRAD and SUNH are found for a month then Angstrom coefficients will be calculated for that month directly by linear regression IMPORT EXPORT MENU The IMPORT EXPORT menu item found on the WeatherMan main menu allows you to perform all the necessary data manipulation for inserting data into an archive file and extractin
132. T PLANT IRRIG RESID HARVS 1 MA R N R R M N OUTPUTS FNAME OVVEW SUMRY FROPT GROTH CARBN WATER NITRO MINER DISES LONG 1 OU X N A 7 8 N PLANTING PFIRST PLAST PH2OL 200 PH2OD PSTMX PSTMN 1 PL 288 360 40 100 30 40 10 N IRRIGATION IMDEP ITHRL ITHRU IROFF IMETH IRAMT IREFF 1 IR 30 50 100 001 001 10 20275 N NITROGEN NMDEP NMTHR NAMNT NCODE NAOFF 1 NI 30 50 25 001 001 N RESIDUES RIPCN RTIME RIDEP 1 RE 100 1 20 N HARVEST HFIRST HLAST HPCNP HPCNR 1 HA 0 365 100 0 N GENERAL NYERS NREPS START YRDAY RSEED 5 2 GE 30 15 5 11244 2150 FA component N OPTIONS WATER NITRO SYMBI PHOSP POTAS DISES 2 OP X Y Y N N N QN METHODS WTHER INCON LIGHT EVAPO INFIL PHOTO 2 MF W M E R S N MANAGEMENT PLANT IRRIG RESID HARVS 2 MA R N R R R N OUTPUTS FNAME OVVEW SUMRY FROPT GROTH CARBN WATER NITRO MINER DISES LONG 2 OU M N A 7 N N N N N N N 8 AUTOMATIC MANAGEMENT QN PLANTING PFIRST PLAST PH2OL 200 PH2OD PSTMX PSTMN 2 PL 155 200 40 100 30 40 10 QN IRRIGATION IMDEP ITHRL ITHRU IROFF IMETH IRAMT IREFF 2 IR 30 50 100 001
133. TION The Sequence Analysis program allows the user to carry out simulations of crop rotations or crop sequences i e any combination of crops grown one after anoth er using the DSSAT v3 crop models and then to analyze the results A simulation experiment involving a crop rotation may be replicated through time using differ ent weather sequences the experiment is set up by the user the appropriate mod els are run using a special program called the driver and the user can then analyze the results using the sequence analysis program The sequence aspect of the dri ver and analysis programs relates to the fact that what is being run are experiments of multiple cropping seasons the carry over of soil water and nutrient status is effected from one season or crop to the subsequent season or crop To clarify the terminology a number of definitions are set out below Sequence relates to the growing of particular crops one after another over time where the carry over effects from one crop to the next whatever they may be are taken into account A sequence may thus relate to the growing of maize planted every year for 10 years a sequence may be a short rotation of maize planted every season followed by beans grown in the same wet season or calendar year or a sequence may consist of a four year crop rotation for example Treatment any particular sequence run over a number of years treatment 1 might refer to maize grown every year for 10
134. TURITY day HARVET day SOWING WT kg ha TOPS WT kg ha MAT YIELD kg ha 9 HAR YIELD kg ha 10 BYPRODUCT kg ha 11 WEIGHT mg unit 12 NUMBER m2 13 NUMBER unit 14 IRRIG APPS 15 IRRIG mm 16 PRECIP mm 17 ET TOTAL mm 18 RUNOFF mm TL 0 4 OO 2 N E E EET CE 1 Help e for analysis 214240 Mem ScREEN 8 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 21 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT Version 3 0 Cropping Season Analysis Tool Variable HAR YIELD kg ha Treatment Field Crop Mean St Dev Min Max 1 RAINFED UFGAO001 SB 3134 9 443 9 1798 0 3602 0 2 AUTOMATIC 90 UFGAO001 SB 3529 2 144 1 3219 0 3761 0 3 AUTOMATIC 70 UFGAO001 SB 3528 3 145 7 3219 0 3761 0 4 AUTOMATIC 50 UFGAO001 SB 3539 8 122 9 3249 0 3759 0 5 AUTOMATIC 30 UFGAO001 SB 3506 1 109 9 3241 0 3725 0 6 AUTOMATIC 10 UFGAO001 SB 3228 0 287 0 2530 0 3602 0 17 ET TOTAL mm 18 RUNOFF mm TL Fl Help Press any key to continue 214240 Mem SCREEN 9 The program calculates various statistics and presents them on screen see Screen 9 abov
135. Table 2 the random number seed RSEED for example in block 1 equals 3517 in block 2 RSEED equals 2150 Since block 1 is a valid block number i e in the TREATMENTS section SM is specified as 1 for the first component then the values appearing here will be used Block 2 is also valid but the values of NYERS etc will be ignored In general you may specify simulation controls as you would for experiment or seasonal FILEXs thus you may specify automatic planting etc DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 14 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence TABLE 2 A SAMPLE FILEX FOR CROP SEQUENCING EBAF1101 SQX EXP DETAILS 110150 MAIZE FALLOW 30 YEARS 15 REPS NO N TREATMENTS FACTOR LEVELS ER OC S Sis pem a ear ep CU FL SA IC MI MF MR MC MT ME MH SM 1 1 1 0 Maize component 1 3 Q i 1 0 0 uz 1 1210 Fallow component 2 2 0 0 0 Q0 9 0 1 2 CULTIVARS 60 CR INGENO CNAME 1 MZ IB0058 NC 59 2 0001 FIELDS L ID FIELD WSTA FLSA FLOB FLDT FLDD FLDS FLST SLTX SLDP IB_SOIL 1 0001 99 0 000 0
136. Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 154 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan CALCULATE STATISTICS Go to ANALYZE Statistics Select all statistics types and time groupings by checking all of the boxes using a mouse or cursor keys and press the SPACE bar Then select the OK button to calculate statistics Go to ANALYZE Report to view the statistics files Print only the monthly summa ry moments file Highlight the appropriate items in the Summary Statistics or View Print Statistics dialog box see Screen 32 or Screen 33 respectively in Chapter 4 and use the F1 key if you need help understanding a statistic type or time grouping CALCULATE STATISTICS FOR THE GENERATED DATA Go again to ANALYZE Statistics Select Only moments under Type of Statistic and Only Monthly Summary under Grouping When you are asked for the type of archive file select Generated data View and print the results for the generated data NOTE Check the file header to make sure it is statistics for gener ated not observed data GRAPH BsEeRVED DAILY TEM PERATURE Go to ANALYZE Graph Screen 9 below is presented The initial default plots are always daily time series for observed data Select the plot ranges with minimum and maximum temperature TMIN and TMAX by checking the check boxes at the left usi
137. ader file Day 1 9 3 No header lines 4 Variable Units Pos Len Variable Units Pos Len 1 smaD M m 7 5 7 1 4 0 0 2 max Bun 5 8 1 1 0 0 3 TMIN 19 5 9 4 1 0 0 4 RAIN Yom 25 5 10 5 y 4 0 0 1 y y 0 0 6 4 0 0 12 l 0 0 OK Cancel I View file I Save format SCREEN 18 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 165 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM explicitly given in the import file The date format can be year month and day of month or year and day of year The day of year format is inferred from a length of 0 for month and a length 23 for the day Up to 12 variables can be imported in any order and with any units The variables and their units are entered in the lower left hand windows in Screen 18 The choice of variables and their units is made with lists that are activated by the down arrow or double clicking with the left mouse button on the appropriate cell in these win dows Moving from cell to cell is achieved with the TAB and lt SHIFT gt lt TAB gt keys or single clicking with the left mouse button Based on the chosen variable the list will reflect valid units For example for temperature variables only temper ature units are listed C F K The variables in the list and their associated
138. ains selected experiments and treatments 1 GENMEANS 6 initial genetic coefficient V values for each A PORNS experiment treatment GENCALC GENMESNS dr bination and the sets of estimated ORITUR S genetic coefficients to 2 _ Contains create a single final set information error limits 8 Sasi and mananan of genetic coefficients foi the selected cultivar coefficients sequence in 2 _ which coefficients are examined that determins nconrri e the course of calculations 3 3 GENCON reads the Y control files and oversees the genetic coefficient calculations GENCON 4 For each iteration GENCON updates the genetic coefficient being worked upon and runs the RS crop model Simulated and OVERVIEWOUT measured values stored in OVERVIEW OUT are compared and the genetic coefficient changed to bring the simulated value closer to the CROP MODEL measured FiGURE 1 GENCALC COMPONENTS The BASIC programs require a run time module BRUN45 EXE It s path must be referenced in the path statement in the AUTOEXEC BAT file FILES DSSATPRO FLE A profile configuration file that indicates the name and location on disk of programs and files that are used by GenCalc The file is detailed in Appendix B along with DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v
139. ake much sense to add bean yields and maize yields if grown in the same growing season in the same calendar year e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 107 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis HAR YIELD kg ha RESIDUALS REGRESSION OF HAR YIELD kg ha MZ1 633 1 243 5 146 1 2535 7 19 1918 1926 1934 YEAR 1 Yield at harvest kg dm ha ScREEN 20 Choose the Time series option in Screen 22 for looking at precipitation for the maize fallow experiment The resulting screen Screen 23 on second following page lists the mean standard deviation minimum and maximum rainfall by sequence year Note that the sequence years have non zero decimal points The time series is produced by treating maize and fallow separately for the first replicate maize was harvested on day 59 in 1912 see Table 4 data record 1 under HDAT with a cumulative rainfall mean of 1213 mm Table 4 data record 1 under PRCM For all 15 replicates the mean harvest date was day 55 8 you can check this by analyzing the maize harvest date Thus the sequence year DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume
140. alysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT Version 3 0 Cropping Season Analysis Tool Variable Treatment Field Crop RAINFED UFGA0001 SB AUTOMATIC 90 UFGA0001 SB AUTOMATIC 70 UFGA0001 SB AUTOMATIC 50 UFGA0001 SB AUTOMATIC 30 UFGA0001 SB AUTOMATIC 10 UFGA0001 SB 17 ET TOTAL mm RUNOFF mm D 18 Fl Help T4 Press any key to continue 214240 MEM SCREEN 25 DSSAT Version 3 0 Cropping Season Analysis Tool Variable IRRIG APPS Treatment Field Crop Mean St Dev RAINFED UFGA0001 SB AUTOMATIC UFGA0001 SB AUTOMATIC UFGA0001 SB AUTOMATIC UFGA0001 SB AUTOMATIC UFGA0001 SB AUTOMATIC UFGA0001 SB 17 ET TOTAL mm 18 RUNOFF mm TL F1 Help Press any key to continue 214240 MEM of oo SCREEN 26 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 62 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis E V PLOT OF MONETARY RETURNS PER HA T T TT T T 71 70 0 600 0 500 0 400 0 0 00K 10 00K 20 00K 30 00K 40 00K
141. and field is specified CU 2 and FL 71 Simulation control is specified SM 2 see above One further factor level is needed a HARVEST DETAILS section MH 1 is REQUIRED for any fallow component This is necessary to tell the fallow model when to stop In the HDATE slot harvest date found in the HARVEST DETAILS section you must specify a year and date for the fallow model to halt This must be specified so that it precedes the planting date PDATE of the next crop found in the PLANT ING DETAILS section if planting is done as recorded i e if PLANT R as it does in Table 2 in the SIMULATION CONTROLS section for the maize crop If planting should be automatic PLANT A then you should specify a value of HDATE such that it precedes or is equal to the first date of the planting window for the next crop this would be specified in PFIRST in the AUTOMATIC MAN AGEMENT section of the relevant SIMULATION CONTROLS block Note that in Table 2 HDATE is set to 12304 The year must be set to 12 since the maize is first planted in 1911 i e we have to look ahead to the next maize crop and day 304 precedes the planting date PDATE of 305 Remember that this is a hypothetical sequence simulation years have to be speci fied and the FILEX in Table 2 assumes that the crop is planted in 1911 The actu al year that the simulation starts is up to the user since simulated weather is to be used Note that you could s
142. ant throughout the sequence from 1911 to 1940 edit the file EBAF1101 PRQ to see this As might be expected in such circumstances reductions in mean yields result in increased probabilities of negative returns across the years of the sequence DSSAT Version 3 0 Crop Sequencing Analysis Probability of Obtaining lt Component Year Probability 1911 000 1912 297 1913 207 1914 303 1915 291 1916 240 1917 480 1918 458 1919 408 1920 192 Do you want to plot this Y N NO Fl Help Press any key to continue Z 71440 Mem SCREEN 32 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 120 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence PROBABILITY PLOT lt 00 1 000 ru B L 4 0 800 H 1 1 4 T gf 1 I b 11 101 II 0 600 Li ML I In d LI gt II 8 L all I III 11 LC I I 5 L I II 11 4 lj lt Tg 05 II 9 1 4 amp 0 i VH 2 8 I I I 1 i 2 V 0 200 4 1910 1918 1926 1934 YEAR n
143. aracters in total length including drive letter colon and leading and trailing slashes V If these paths are modified using the SETUP menu of the DSSATS3 shell then there is no problem as the screens will not allow you to enter paths longer than this If you modify DSSATPRO FLE with a text editor then you need to ensure that this total length is not exceeded e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 87 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis 0 013 No code error The crop code specified e g MZ could not be found in the file DSSATPRO FLE This will occur if a cultivar is specified in FILEX that does not have a valid crop code 0014 Read error in file An undefined read error occurred when reading the specified file check the for mat of the file 0 015 Rotation Option feature not yet implemented file The specified FILEX contained a value for the rotation option O other than 1 exit and fix the file 0 016 SEODRV READ error file A read error occurred while the sequence driver was reading the specified file 0 017 SEQDRV A sequence driver error occurred check the format of FILEX 0018 Last model run could not be completed as specified Check the format and contents of FILEX if this error occurs then the simulati
144. asonal Analysis Seasonal Analysis TABLE 5 PrRice Cost Fite DEFA ULT PRI PRICE COST_FILE DEFAULT FOR SEASONAL ANALYSIS if IDIS 1 cost price component is ignored in analysis if IDIS 0 fixed value if IDIS 1 uniform variate PAR1 lower PAR2 upper bound if IDIS 2 triangular variate if IDIS 3 normal variate PAR1 mean PAR1 lower PAR2 mode PAR3 upper bound PAR2 st dev File sectioned by crop crop s treatment sections must be contiguous MZ TREATMENT 1 PRAM GRAN BYPR BASE IDIS 3 0 0 PARI 160 00 10 00 240 00 PAR2 16 00 00 00 PAR3 00 00 00 SB TREATMENT 1 PRAM GRAN BYPR BASE IDIS 3 0 0 PARI 320 00 0 00 390 00 PAR2 32 00 00 00 PAR3 00 00 00 BN TREATMENT 1 PRAM GRAN BYPR BASE IDIS 3 0 0 PAR1 360 00 0 00 380 00 PAR2 36 00 00 00 PAR3 00 00 00 Headers PRAM Parameter NFER 0 45 00 00 NFER 0 45 00 00 NFER 0 45 00 00 NCOS 12 00 00 00 NCOS 12 00 00 00 NCOS 12 00 00 00 IDIS Distribution type see file header PAR1 Distribution parameter 1 PAR2 Distribution parameter 2 PAR3 Distribution parameter 3 GRAN Price of grain t BYPR Price of harvest byproduct BASE Base production costs ha t NFER Nitrogen fertilizer cost kg NCOS Cost per N fertilizer application IRRI Irrigation cost mm IRCO Cost per irrigation application ha SCOS Seed cost
145. atically deleted upon exiting the WeatherMan depending on the options selected under the OPTIONS main menu item for Temporary files see also the section entitled Generate Menu in Chapter 4 The archive file s are stored in the climate directory specified in DSSATPRO FLE or in OPTION Directories see Chapter 4 When an operation e g Export Statistics can be performed on more than one type of data an additional dialog box is used to clarify which archive file to use An example of the Archive File Type dialog box is given in Screen 4 on following page For several operations a time period can be selected The general form of the Time Period dialog box see Screen 5 on following page has both starting and ending Weather Station Station name T OK Files 2003 2509 TESI Cancel 2006 SENE UFGA 2008 CCMM SEEN 2025 CCPA 2041 CERO Z506 CCQU 2507 2508 FARM lt K E C DSSAT3 WEATHER CLIMATE CLI 2005 Cin 3014 Feb 10 1994 T7 83 yen SCREEN 3 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 145 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Archive File Type Archive types found Observed data Generated data Filled data
146. aults for plotting are defined in this section in the format keyword followed by a string integer or real variable Specifically the keyword definitions and possible values are gcolor 0 7 refers to the default color palette for plotting Values are 0 to 15 interval number of major divisions on the X and Y axis 9 chooses Autoscaling tics number of tic marks between the major divisions 9 chooses Autoscaling driver an integer value of 0 to 33 is specified The printer plotter options are listed in Table 7 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 44 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis DSSAT Version 3 0 Cropping Season Analysis Tool r Main Menu Hardcopy Printer driver HP LaserJet DeskJet B amp W 150 dpi Printer port LPT1 Orientation Portrait X Multiplier 1 00 Y Multiplier z 2 00 File name C NDSSAT3NSEASONALNVARAN200 GRA Save changes and exit Abandon changes and exit F1 Help 214240 Mem SCREEN 23 TABLE 6 SAMPLE SECTION OF GRAPH INI WMgraf color0 1 colori 15 color2 14 color3 12 color4 15 color5 10 color6 11 color7 13 interval 9 tics 9 driver 7 port 0
147. box for selecting a weather station is given in Screen 3 on following page The file mask on the first line may be restricted for particular operations In selecting a weather station a 4 letter name is expected and a CLI extension is automatically appended Selecting a file for import or export allows any legal DOS file name and extension For a format file any legal s c Weather Input File Name 4 _____________ UFGA7901 WTH i OK UFGA7001 WTH UFGA7601 WTH 1 bd gt ALCL5901 WTH CCQU AHY SUM ATTRIB FLE CCQU AMA SUM AUXSTAT BIN CCQU AMM SUM SCREEN 2 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 144 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan DOS name is accepted and the default extension of FMT is appended The Format Name dialog box has an additional Edit button that is explained in that section in Chapter 4 Files from other directories can also be listed by selecting a directory An example of the Weather Station dialog box is given in Screen 3 below Three kinds of archive files for a single station can exist Raw or observed Filled and Generated The raw archive file is generally retained while filled and generat ed archive files may be autom
148. bruary etc SAMN Mean daily solar radiation for month MJ m day XAMN Mean daily maximum temperature for month C NAMN Mean daily minimum temperature for month C RTOT Mean total rainfall for month mm RNUM Mean number of days with rainfall for month SHMN Mean daily hours of bright sunshine for month percent of daylength AMTH Intercept A in the Angstrom equation for month BMTH Multiplier B in the Angstrom equation for month WGEN PARAMETERS MTH Month 1 January 2 February SDMN Mean daily solar radiation on dry days MJ m day SDSD Standard deviation of solar radiation on dry days SWMN Mean daily solar radiation on wet days MJ m2 day SWSD Standard deviation of solar radiation on wet days XDMN Mean daily maximum temperature on dry days C XDSD Standard deviation of maximum temperature on dry days XWMN Mean daily maximum temperature on wet days C XWSD Standard deviation of maximum temperature on wet days NAMN Mean daily minimum temperature C NASD Standard deviation of minimum temperature ALPHA Alpha coefficient of gamma distribution for rainfall RTOT Total rainfall mm PDW Probability of a wet day following a dry day RNUM Mean number of days with rainfall RANGE CHECK VALUES MIN Minimum value for range check MAX Maximum value for range check RATE Maximum change between days for range check DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT
149. ch treatment the model is run under the command of the driver program and it will be run for as many replicates as are specified by NYERS in the FILEX When all the treatments of the selected simulation or real world experiment have been run the results listing file SEASONAL LST see the example in Table 3 is updated with the name and description of the summary output file produced The user can then quit the program or choose another FILEX for running with the seasonal driver The seasonal driver can be run in a stand alone mode or through the DSSAT v3 Shell see Volume 3 1 Hunt et al 1994 of this book for a description of the Shell TABLE SUMMARY OUTPUT LISTING FILE SEASONAL LST SEASONAL LIST FILENAME EXT ENAME 1 UFGA7801 SNS GAINESVILLE SOYBEAN IRRIGATED AND RAINFED 2 UFGA7802 SNS EXAMPLE SEASONAL ANALYSIS 5 2 3 UFGA7812 SNS GAINESVILLE FLORIDA SB IRRIGATION EXPERIMENT 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 13 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas It is important to note that in whichever mode the driver is run the program expects to find all the model program s in t
150. changes to the file GRAPH INI Normally configuration of the graphics program will be carried out through the configuration menu in the sequence and seasonal analysis programs You may wish to edit GRAPH INI with a text editor however The section of GRAPH INI that holds configuration data for the graphics program is under the WMGraf sec tion of the INI file Defaults for plotting are defined in this section in the format keyword followed by a string integer or real variable Specifically the key word definitions and possible values are as follows gcolor 0 7 refers to the default color palette for plotting Values are 0 to 15 interval number of major divisions on the X and Y axis 9 chooses Autoscaling tics number of tic marks between the major divisions 9 chooses Autoscaling driver an integer value of 0 to 33 is specified The printer plotter options arelisted in Table 7 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 122 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence port 0 for LPT1 1 for LPT2 2 for COM1 3 for COM2 or 4 for redirec tion of output to a file orientation 0 for portrait or 1 for landscape fontsize fontsize for labels 1 to 20 xmult X multiplier ymult Y multiplier file nam
151. contain up to 99 experiments a limit imposed by the file structure It should be borne in mind that the sequence analysis program has a limit of being able to handle a maximum of 20 replicates and a total of 1000 sepa rate model runs AN EXAM PLE On activating the Simulate option under the Sequence window Screen 1 below the driver program is activated and the user is presented with Screen 2 on following page Screen 2 contains the contents of the file EXP LST the listing file in the current directory of current or selected FILEXs for sequence analysis This lists the file number file name crop group code SQ for sequence analy sis and description The description may be up to 60 characters long if it is shorter the description is padded with full stops The file description is obtained from columns 26 through 85 of the first line of FILEX see Table 2 If the colors on the screen are difficult to see such as when the program is being run on a monochrome laptop computer you can force the program to display ECISION SUPPORT SYSTEM FOR AGROTECHNOLOGY TRANSFER DATA MODEL ANALYSES TOOLS SETUP QUIT S Seasonal 56 0C CC Create Inputs Simulate Outputs Analyze Run the appropriate crop model s using a controlling driver program Tloe moves through menu choices ESC moves to higher menu level Version 3 0 SCREEN 1 DSSAT v3
152. d Options Menu and the subsection Temporary Files for a description of how to change from a temporary file Either the WGEN or SIMMETEO generator can be used to generate daily data The standard Time Period dialog box is inserted to choose the years to be generated only full years can be generated The default action is to match the time period of the raw archive file although any time period can be specified For comparing yearly time series graphi cally matching the dates is a good choice Just because generated and raw data have the same time period does not mean that the generated data predict the raw daily data only the means are predicted on average A random number seed is generated and inserted in the dialog box shown in Screen 30 To generate an identical sequence of weather data the same random number seed should be specified DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 178 WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan r 1 Generate Weather Data Model WGEN SIMMETEO Starting year 1980 Ending year TOST Random seed 1 to 32767 3919 OK I 1 I SCREEN 30 ANALYZE MENU The ANALYZE menu item found on the WeatherMan main menu allows you to
153. displayed coefficients should be used for the first run changed for subsequent runs This helps in obtaining multi site fits SCREEN 6 include the selected genotype Choose experiments to be used for genotype coef ficient calculation by typing either Y or N to the prompt for each experiment 8 The treatments for each experiment selected will be displayed in Screen 8 on fol lowing page Choose all or some treatment s in the chosen experiments for geno type coefficient calculation by responding appropriately Y or N to the prompts on the screen G C CALCULATOR INDIVIDUAL VERSION 3 CROP Maize MODEL GECER940 The selected genotype was included in experiment IBWA8301 Accept this experiment Press Y or N Generally it is preferable to work first with few experiments and or treatments then to proceed using the coefficients so determined SCREEN 7 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 214 or e DSSAT v3 Volume 3 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype G C CALCULATOR INDIVIDUAL VERSION 3 CROP Maize MODEL GECER940 The selected genotype was included in experiments IBWA8301
154. e 21 Respond with N to the prompt asking if you wish to edit the cultivar file although including notes in the cultivar file may be useful for future ref erence 22 At this stage the process should be repeated from Step 1 to calculate the growth coefficients for the cultivar in question Exit the averaging program and press the ENTER key to display the prompts to select another geno type or a different crop Press the lt gt key to select a genotype and repeat the process 23 Respond with an N response to the prompt Calculate DEVELOPMENT coefficients only Follow this by a Y response to the prompt Calculate GROWTH coefficients only in Step 6 Continue with Step 7 Repeat the process for the GROWTH coefficients Upon completion you should haveboth the DEVELOPMENT and GROWTH coefficients needed to run the appropriate crop model DISCUSSION The above step by step instructions cover the basics of GenCalc operation The various options available in GenCalc however make it possible to determine genotype coefficients in a number of different ways Users should be aware of this and should experiment with procedures that may be more appropriate for their own specific conditions Users should also be aware that it may not be pos sible to fit coefficients for some data sets Should this appear to be the case a user is encouraged to contact the authors and to provide them with a copy of the data set being u
155. e These values show by treatment the mean standard deviation mini mum and maximum harvest yield obtained from running the soybean simula tion model Screen 9 shows the results obtained from the simulation of the auto matic irrigation experiment at Gainesville Florida UFGA7812 SNX and referred to above As might be expected for this simulation mean soybean yield increased as the irrigation threshold increased i e more water was applied to the crop Press any key to continue and the Graphics main menu appears Screen 10 on following page Three types of graphs can be plotted described as follows GRAPHICS MAIN MENU OPnoN 1 Box PLOT If this option is selected in Screen 10 a list of all the treatments is presented by default all treatments are selected for plotting box plots when this option is selected All of the treatments can be selected at once by pressing the lt gt key or they can be selected individually by using the space bar as described before under Screen 8 To deselect all treatments press the lt gt key After treatment selection use the default for this example press the lt ENTER gt key and a box plot appears see Screen 11 on second following page This is a way of assessing visually the variability of the output variable under consideration For the distri DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DS
156. e average values after determining coefficients for several experiments ScREEN 4 6 Inthe next dialog box presented respond with an N to the prompt Calculate ALL coefficients And at the next prompt respond with a Y to calculate only the DEVELOPMENT those concerned with the duration of the life cycle coefficients 7 Screen 7 on following page will be presented which lists experiments which G C CALCULATOR INDIVIDUAL VERSION 3 CROP Maize MODEL GECER930 Current coefficients are PL P2 PS G2 G3 PHINT 1 2 3 4 5 6 320 520 940 625 6 00 75 0 Use these for first simulation of new run Press Y or N Generally the displayed coefficients should be used for the first run changed for susequent runs This helps in obtaining multi site fits ScREEN 5 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 219 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff G C CALCULATOR INDIVIDUAL VERSION 3 CROP Maize MODEL GECER940 Current coefficients are Pl P2 P5 G2 G4 PHINT 1 2 3 4 5 6 320 520 940 625 6 00 75 0 Which coefficient to change ENTER 1 2 etc gt Generally the
157. e 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSATPRO FLE DSSATPRO FLE PRICE FILE S PRI XCREATE EARLS gt DRIVER SEASONALLST SEASONAL PROGRAM PROGRAM ANALYSIS OR PROGRAM UFGA7812 SNX UFGA7812 SNS UFGA7812 SNR ASCII TEXT EDITOR UFGA7801 SNX CROP L MODELS SUMMARY ANALYSIS OUTPUT RESULTS y FILES FILES Y OUTPUT FILES STEP 1 CREATE A FILEX lt STEP 2 RUN THE EXPERIMENT gt STEP 3 ANALYZE MODEL OUTPUTS gt NOTES FILEX are crop model input files listed in EXP LST Summary Output Files contain model outputs and are listed in SEASONAL LST ANALYSIS RESULTS FILES contain the results of all analyses carried out DSSATPRO FLE contains path information for all components of the DSSAT v3 PRICE FILES for seasonal analysis have the extension PRI FiGURE 1 STEPS IN SEASONAL ANALYSIS SYSTEM REQUIREMENTS The useable portion of your system s 640 Kb RAM should be at least 520 Kb in size for the models to run and for the analysis program and graphics to work If the driver or analysis program
158. e Table 5 You may have multiple treatment sections per crop you may speci IDIS 1 UNIFORM Pr Mean a b 2 b a 2 1 2 I I I I IDIS 2 Pr TRIANGULAR Mean a b c 3 2 i Variance b a b a c b 8 1 1 1 b IDIS 3 Pr Mean x NORMAL Variance 62 x FiGURE STOCHASTIC PRICE CosT DISTRIBUTIONS DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 38 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis fy more than one treatment number or you may specify the keyword ALL in the TREATMENT line of a crop section Thus for example TREATMENT ALL and TREATMENT 1 2 3 are valid the treatment numbers and keyword ALL should simply be space delimited the exact format does not matter If you have TREAT MENT ALL this will ensure that those costs and prices will be used for all treat ments pertaining to that crop A fatal error occurs if there is no appropriate crop section in the price cost file Thus if you use the DEFAULT PRI price cost shown in Table 5 to analyze a wheat experiment you will need to add a WH section to the file As noted above if a section with
159. e a stochastic generator to fill missing data SCREEN 27 WeatherMan WeatherM DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 174 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan TABLE 7 EXPLANATION OF EXPORT OPTIONS Option Format name Yearly file naming convention Fill missing data Fill range errors Fill missing dates Export Data Flags Explanation The default action is to prompt for a format name If the only file formats used are the DSSAT v2 1 or DSSAT v3 formats the format name can be fixed as IBSNAT v2 or IBSNAT v3 respectively The default is to use the DSSAT v3 file nam ing convention The other option is to use the DSSAT v2 convention The file naming conventions are Station 4 characters yr 2 characters For DSSAT v2 1 use IBSNAT v2 Station 0112 W yr raw Station GEN W yr generated For DSSAT v3 use IBSNAT v3 Station yr Ol1 WTH raw Station yr O1 WTG generat ed The default is to fill missing data If missing data are not filled the value is written as 99 0 on output The default is to replace data that are flagged for range errors This option is only in effect if Fill Missing Data is checked If range errors are not filled the original
160. e code is 1 then the pro gram will continue as the error may not be fatal Information messages have code 1 also Some of these messages self explanatory Others are indications of serious problems and you should check your file formats 0 001 Cannot find directory file The summary output listing file could not be found in the current directory 0 002 No entries found in file The summary output listing file could be found but no valid entries were found in it 1 003 Cannot find file The specified file cannot be found in the appropriate directory 0 004 Error reading An error occurred during file reading this is usually due to incorrect format of the specified file 0 007 Cannot access file The specified file cannot be found in the appropriate directory 1 008 Read error in subroutine GETCOD file An error occurred in reading the specified file 0 009 Code could not be found The program attempted to find the specified code in the DSSATPRO FLE but could not find it The pathname associated with the code specifies the location of the graphics program for the sequence analysis graphics DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 126 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence TABLE 9 PART OF SEQU
161. e for file output if port 4 The printer types supported by the graphics program are shown in Table 7 You may also need to be aware that legends for the graphics program are taken from a DSSAT3 file called DATA CDE see Table 8 and Appendix to Volume 2 1 Jones et al 1994 of this book This lists among other things the headers abbreviations and definitions of the 35 output variables in the summary model output file that can be analyzed using the seasonal analysis program in the sec tion headed by the SUMMARY keyword TABLE 6 SAMPLE SECTION GRAPH INI WMgraf color0 1 colorl 1 color2 1 color3 1 color4 1 color5 1 color6 1 color7 1 interval tics 9 driver 7 port 0 orientation 0 fontsize 6 xmult 1 00 ymult 1 00 usetics Y usekeyword 1 file OUTPUT ll O N e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume L23 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis TABLE 7 PRINTER TYPES SUPPORTED BY THE GRAPHICS PROGRAM Driver Number Driver Description 0 Epson 9 Pin 60x 72 dpi 1 Epson 9 Pin 120x 72 dpi 2 Epson 9 Pin 240 x 216 dpi 3 24 180 180 4 24 360 180 5 24 360 360 6 HP LaserJet DeskJet B a
162. e initial RSEED used is incremented to Rnew from the value in FILEX according to Rnew RSEED 5 i 1 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 79 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 80 where i is the replicate number If you run into problems this will allow you to be able to calculate the value of the random number seed that gave rise to the problem generate the offending weather sequence and hopefully reproduce and isolate the problem FNAME If this switch is set to N then the summary output file from the model runs will be named SUMMARY SQS If FNAME is set to Y then the summary output file name will be the same as the model FILEX name except that the last letter of the extension will be changed from X to S Thus for the experiment FILEX in Table 2 which has the name EBAF1101 SQX the summary output file will be named EBAF1101 SQS since the switch FNAME is set to Y SUMRY For sequence simulations this controller should always be set to A append other wise the summary output file will be successively overwritten by each treatment and earlier outputs lost In Table 2 all the other OUTPUTS op
163. e made about the decision maker s attitude to risk Refer to the Reference section in this Part for sources of information on the issues discussed in this appendix These rules were developed to tackle the problem of portfolio selection in invest ment theory but are now firmly entrenched tools for risk analysis in all sorts of applications All involve a pair wise comparison of random variables and strict ly speaking these should relate to financial gains and losses The result of the analysis is an efficient set of treatments The efficient set contains a subset of treatments that are superior there may be one only but sometimes there will be more than one efficient treatment Three variations are described briefly below MEAN VARIANCE EV ANALYSIS For two risky prospects A and B with means E and variances V respectively then A dominates B if E A E B and V A lt V B or if V A V B and E A gt E B A is then said to be EV efficient If prospects are plotted in EV space V the ordi nate E the abscissa then utility increases in a north westerly direction EV analysis assumes that the decision maker has a quadratic utility function for gains and losses and or that the risky prospects are distributed normally or at least distributed symmetrically These are often untenable assumptions and the EV criterion has fairly weak discriminatory power i e the efficient sets tend to be large STOCHASTIC DO
164. e of this report is displayed in the Import Statistics dialog box as shown in Screen 23 on following page OPTIONS The options for import can be changed using the Import options menu item from Screen 17 which accesses the Import Options dialog box presented in Screen 24 and explained in Table 6 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 169 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM TABLE 5 EXPLANATION OF ERROR CODES USED To FLAG SUSPECT OR ERRONEOUS DATA Class Range check Range check Range check Conversion Conversion Description Above maximum Below minimum Greater than maximum daily change Missing value Format error Import code Filled code When range checking is turned on the variables are checked against a maximum value a minimum value and a maximum rate of change from one day to the next The values inserted in the raw archive file are not changed but marked with an appropriate range check flag see the Import section above Default range values are provided for a new weather station and these can be edited using the Edit range checks option found in Screen 17 to access the Edit Check Ranges dialog box An example of the Edit Check Ranges dialog bo
165. e option to plot some results The plot menu Screen 28 below allows you to do box plots of economic returns by crop component or total returns all crop components included in the analysis Select the option Box DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu Economic Evaluation Plot Menu Returns 21 Returns 1 Box Plot of Box Plot of ds in analysis y analysis ile EBAF1101 PRQ Box Plot of Probability Analysis Total Returns Review results Exit economic analysis F1 Help 71440 Mem SCREEN 28 Sequence DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 117 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 118 Plot of Total Returns in Screen 28 and the resulting box plot for all years is shown in Screen 29 below in the same way as for the biophysical variable box plots described above Return to the plot menu Screen 28 Select the Probability Analysis option the resulting screen is shown as Screen 30 on following page Again you may do a probability analysi
166. e season to the next do not vary greatly The other graphs show what happens to random samples with fewer and fewer replicates 20 10 and 5 respectively It can be seen that the plots become progressively more erratic note the increasingly variable maxima and minima and the highly variable spread of the median With only 5 replicates we apparently have an upward trend of the median The sequence analysis program was written with two main hypotheses in mind 1 Cropping systems that have some sort of problem will eventually exhibit decreasing performance levels over time be it in terms of yields or economic returns 2 Some cropping systems will have problems over long periods of time that are exhibited in terms of increases in variability over the sequence The analyses included in the program are designed to allow the user to identify these types of problems There may be situations where a simple graph of yields e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 135 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis N 100 N 20 YIELD YIELD 1 3 5 7 9 11 1 3 5 7 9 11 YEAR YEAR N 10 N 5 10 10 4 4 al LI 5 4 LI 5 gt gt gt gt
167. ears during Import Export and Convert operations is a variation of the File List dialog box see Screen 10 with an addi tional EDIT button The EDIT button allows the user to view edit and save for mat files If a name is entered that doesn t match an existing format the user will be prompted to edit a blank template format NEW and save it under the desired name The Edit File Format dialog box presented when the EDIT button is pressed is shown in Screen 18 below In Screen 18 the format name is displayed in the top right corner window The Header output option in the top left region of the screen controls what header lines are added to a file during an Export operation The header can match DSSAT v3 or v2 1 standards consist of variable names right justified in the columns in which the variables will be written or can be read from a text file Just below the Header output option is the No header lines which is the number of non blank header lines to be skipped during Import The format for the date is entered in the upper right hand corner in Screen 18 For Import the date of the first data point should be entered only if dates are not File Station Import Export Generate Analyze Options Quit 14 39 35 Edit File Format Header output option Format name IBSNAT3 None IBSNAT v 3 Date First Position Length IBSNAT v 2 Year 1990 1 2 Variable names Month 1 0 0 From he
168. easonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis CONTROLS block i e N 2 in Table 2 the IRRIG switch is set to A for auto matic The corresponding information in the AUTOMATIC MANAGEMENT section of the file under IRRIGATION shows that IMDEP is set to 30 and ITHRL to 90 Thus irrigation will be applied automatically when available soil water is less than or equal to a value of 90 percent ITHRL of what the soil can hold in the top 30 cm of the profile IMDEP Compare this with the SIMULATION CONTROLS block number 6 i e N 6 where under AUTOMATIC MANAGEMENT ITHRL has a value of 10 i e the soil water trigger will operate when available water reaches 10 percent of field capacity in the top 30 cm Note that all other switches in each of the SIMULA TION CONTROLS blocks in Table 2 are the same In general you may mix crops in a seasonal analysis FILEX Thus you can com pare performance of different crops in the same experiment Treatment 1 might involve maize and Treatment 2 dry bean for example 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3
169. easured values for key variables In use it requires that a user respond to a number of prompts Information to help with the choices is displayed on most screens PROGRAM COMPONENTS GenCalc encompasses a number of components as depicted in flow chart form in Figure 1 The components are described as follows PROGRAMS GENCALC EXE The shell program that sets up the various control files activates the overall control program and runs the appro priate model BASIC GENCON EXE A control program that reads simulated and measured data from one of the model output files OVERVIEW OUT and then if needed changes the appropriate genotype coeffi cient to bring simulated values closer to the measured data FORTRAN GENMEANS EXE An averaging program that calculates means for coeffi cient values from individual experiments BASIC e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 203 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype 1 The user select the cultivar experiments treatments and initial 5 GENCON stores the new set of estimated genetic coefficients to the file genetic coefficient A values 2 GENCALC creates three 1 files GCOEFF CTR cont
170. ems or sub menus do not require the ALT sequence Dialog box A window that prompts for some user response A dialog box may contain push buttons input lines input lists radio buttons or check boxes In general these items may be selected with a mouse TAB lt 5 gt lt or an ALT hotkey combination Push button A rectangular button that is activated by a mouse double click or pressing the ENTER key Most dialog boxes con tain at least OK and CANCEL buttons Input line A highlighted bar that accepts string or numeric data The cursor INSERT and DELETE keys are active in an input line Input list An input line followed by a down arrow icon opens a dialog box with a list of permissible entries Activate by selecting the icon with a mouse or selecting the input line and pressing the down cursor key Radio button Radio buttons 0 allow you to select one item from set of options Select with a mouse up and down cursor keys and the SPACE bar or an ALT hotkey combination Check box Check boxes i e X allow you to select any combination from a set of options Select the same way as radio but tons F1 Context sensitive help CANCEL button Ignores choice and returns to previous menu OK button Accepts choice and exits the current dialog box or contin ues the process lt 5 gt Equivalent to CANCEL
171. eneral observation that running a simulation experiment is trivial interpreting the output produced requires great care Press any key in Screen 22 to return to the Graphics Strategy menu Screen 20 Choose the Quit option in Screen 20 twice or hit the lt 5 gt key twice to return to the Seasonal Analysis main menu Screen 5 MODIFY HARDCOPY O PTIONS On choosing the main menu option Modify Hardcopy Options in Screen 5 with the mouse or cursor keys you can change the way in which hardcopies of the graphs are produced on your printer or plotter The screen that appears Screen 23 on following page when this option is selected lists the current graphics hardcopy options These are stored in an ASCII file called GRAPH INI see Table 6 The var ious controller options can be changed from Screen 2 simply by selecting the option to change and choosing any of the valid options thus your printer port might be LPT2 rather than LPT1 After making any changes to the controller options in this screen you can select to abandon the changes you have made or you can save the changes to the file GRAPH INI Normally configuration of the graphics program will be carried out through the configuration menu in the Seasonal and Sequence Analysis programs You may wish to edit GRAPH INI with a text editor however The section of GRAPH INI that holds configuration data for the graphics program is under the WMGraf sec tion of the INIfile Def
172. equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence TABLE 4 SUMMARY OuTPUT Fie EBAF1101 SQS First 20 Data RECORDS ONLY Columns 1 74 SUMMARY TDENTIFIE RP TN ROC 1 1 110 2 1 210 3 1 110 4 1 210 5 1 110 6 1 210 7 1 110 8 1 210 9 1110 10 1 210 Ja d 110 iz 1 210 13 1 110 14 1 210 15 1 110 16 1 210 17 1 110 18 1 210 19 1 110 20 1 210 EBAI LI LI LI CI LI LI LI N gt 5 gt DON gt LI gt 1 1 1 1 1 1 1 1 1 1 Columns 75 164 DRY WEIGHTS DWAP O N Co O Oy O G j 0 10 41 O CWAM 5430 0 2848 0 4813 0 2537 0 5061 0 1252 0 2987 0 5498 0 3581 0 4126 0 110150 Ch S Ch 07 cc EBAF 00 EBAF 00 EBAF 00 EBAF 00 EBAF 00 EBAF 00 EBAF 00 00 00 EBAF 00 EBAF 00 EBAF 00 EBAF 00 EBAF 00 EBAF 00 EBAF 00 EBAF 00 00 EBAF 00 EBAF 00 217 498 326 338 0 aize componen low compone Maize componen low compone Maize componen low compone aize componen low compone aize componen low compone Maize componen low compone Maize componen
173. er the values shown in Screen 6 for this example NOTE When the information for a weather station has already been entered the Screen 6 dialog box would not appear the next time that station is selected CCQU must not be on the distribution disks e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 149 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Station Data Location Quilichao NorthCauca Colombia Latitude degrees 3 080 Longitute degrees 76 520 Elevation m 990 0 Angstrom coefficient A 0 25 Angstrom coefficient B 0 50 Reference height m 2 00 Wind reference height m 4 00 Mean annual temperature C 24 0 Temperature amplitude C OFS Start of growing season day 1 Duration of growing season days 365 SCREEN 6 IMPORT DAILY W EATHER FILES Select STATION Edit monthly means The 99 indicates a missing value Select the CANCEL button or press the lt 5 gt key to return to the main menu Go to IMPORT EXPORT Import single file Import the file CCQU1980 DAT by selecting it from the list Since the format of CCQU1980 DAT does not match any of the format files distributed with WeatherMan you will need to create a new format definition file You
174. erators so that missing data can be filled in the exported data file 4 Export the weather data a Select the Import Export and Export Yearly Files buttons Select the OBSERVED DATA button b When prompted enter starting and ending dates for the data to be exported c For exporting daily weather data to be used in DSSAT v3 select the IBSNAT3 format file Exported files will normally be located in the directo ry C NDSSAT3NWEATHER and will be named according to the file naming conven tions of DSSAT v3 e g yy01 WTH where is the weather station code and yy is the year DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 148 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan CHAPTER THREE INTRODUCTORY TUTORIAL In this introductory tutorial you are going to define a new weather station import weather data and export data to a file of different format You are also going to generate data analyze both data sets and compare them using both tables and graphs In this tutorial the nomenclature IMPORT EXPORT Import single file means go to the IMPORT EXPORT menu item of the DSSAT v3 Shell and then select the Import single file menu item from this menu Selection is performed by high lighting the item and pressing the
175. etermining coefficients for several experiments SCREEN 2 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 211 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff G C CALCULATOR INDIVIDUAL VERSION 3 PRESS B for BARLEY D for DRY BEAN A for AROIDS 1 for MILLET Y for SOYBEAN C for CASSAVA M for MAIZE P for PEANUT R for RICE s for SORGHUM W for WHEAT 0 for OTHER ESC for previous screen NB The model installed must meet Gencalc requirements If you are unsure exit and check Model and Gencalc documentation Determine genotype coefficients for one or more experiments calculate average values after determining coefficients for several experiments SCREEN 3 3 Decide whether to delete the contents of individual values file COEFF TMP from previous GenCalc sessions As the message on the screen indicates the contents of this file must be deleted from time to time to keep the file size manageable 4 When a crop is selected e g M Maize in Screen 3 a list of genotypes avail able for that crop for analysis is presented in Screen 4 on following page Select one of the genotypes from the list 5 After a genotype is selected
176. experiments using the Steps above If desired you may replace coefficient values in the cultivar file with these values see Step 20 The calculator will then prepare a list of coefficients calculated for the geno type in question in previous specific experiment treatment runs Screen 13 below Each of these runs is assigned a sequence number in the listing RUN column as shown in Screen 10 along with a number denoting whether all 1 development 2 or growth 3 coefficients were determined R column A column headed with a T contains the number of the treatment used for the particular set of coefficient calculations In Screen 13 select a run number Once a run number is chosen mean coeffi cients are calculated from individual values obtained for different experi ments and treatments but with the same initial coefficient values along with their respective coefficients of variation These values are displayed together G C CALCULATOR AVERAGES VERSION 3 CODE EXPMENT 0063 IBSI800 0063 IBSI800 0063 IBSI800 0063 IBSI800 80063 IBWA830 B0063 IBWA830 B0063 IBWA830 B0063 IBWA830 B0063 IBWA830 B0063 IBWA830 Pl P2 B0001 320 D 5200D 94 B0001 320 D 5200D 94 B0001 320 D 5200D 94 2 0001 320 D 5200D 94 U P5 G2 G3 PHINT 1 0 1 0 2 0 2 0 1 B0001 340 5200M 940 1 0 1 0 2 0 2 0 2 0 625 06 000075 000 625 06 000075 000 625 06 000075 000 625 06
177. file is shown in Table 9 This file can be edited as required and the data imported into any application capable of reading ASCII text files for whatever purpose you require Before you exit the program you are given the option of printing this file You should be aware that the file may be very long however if you have carried out many analyses INFORMATION AND ERROR M ESSAGES A number of information and error messages are produced by the Seasonal Analysis program In the list that follows each message is preceded by a single digit code and a three digit message error number If the single digit code is 0 then this is a fatal error and the program exits If the code is 1 then the pro gram will continue as the error may not be fatal Information messages have code 1 also Some of these messages are self explanatory Others are indica tions of serious problems and you should check your file formats 0 001 Cannot find directory file The summary output listing file could not be found in the current directory 0 002 No entries found in file The summary output listing file could be found but no valid entries were found in it 1 003 Cannot find file The specified file cannot be found in the appropriate directory 0 004 Error reading An error occurred during file reading this is usually due to incorrect format of the specified file 0 007 Cannot access file The specified file cannot be found in the appropriate di
178. finding the appropriate help screen The appropriate help screen could not be found DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 942 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis 1 058 There were matching files found 1 060 The requested subdirectory to be searched doesn t exist 1100 Error Undetermined error 1131 You MUST turn on the printer now or the program will crash 1148 A problem was encountered in trying to print a file The results file could not be printed successfully 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 9 3 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 54 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis REFERENCES The follo
179. g it into other files The IMPORT EXPORT pull down menu is shown in Screen 17 below and its options are described as follows FORMATS The File format option allows you to define the format of the target weather data file to be imported or the destination file to be exported These formats are saved in files with FMT extensions For example format definition files for DSSAT v2 1 IBSNAT2 FMT and DSSAT v3 IBSNAT3 FMT are distributed with the WeatherMan A blank format NEW FMT is provided as a template for con structing new format definition files Format files specify columns of data units File Station Import Export Generate Analyze Options Quit 14 08 26 Convert format Import single file Import multiple files Import options Edit range checks Export single file Export yearly files Export options Data fill options SCREEN 17 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 164 WeatherMan DSSAT v3 Volume 3 WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan for each data column date formats i e year month day or year day of year and file header options Users can edit these formats and save the changes under new or existing names The Format Name dialog box that app
180. gt or lt Y gt key to continue regard less or else press the lt N gt key to quit the program so you can rename or move the existing output file Once past Screen 2 the driver will issue appropriate commands and call up the crop model s The initial model produced screen warns the user not to touch the e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 8 3 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis keyboard Once simulations are under way each model run is summarized on the screen so that the user can chart progress of the experiment Sequence exper iments over many years and or with many replicates may take a great deal of time to simulate especially on older personal computers No keyboard input should be made unless an error occurs To abort the simulation runs before they have finished press the lt ESC gt key or press lt gt For each FILEX simulated the driver updates or creates a listing file which stores the names of the summary results files in similar fashion to EXP LST which stores the names of available FILEXs in the current directory This file SEQUENCE LST is of the same format Table 3 and is used by the analysis pro gram described in the next section Two other messages may appear on the final
181. have made any changes restore the original values of prices and costs so that the screen appears as in Screen 17 To do this either reset any values changed using the menus or exit this part of the program and then reenter it Then select the Done with changes option or press the lt ESC gt key to return to the Economic Evaluation menu Screen 15 3 CALCULATE RETURNS When this option is selected from Screen 15 the program will calculate the mean 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 39 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT Version 3 0 Cropping Season Analysis Tool Cost Price Sensitivity Analysis All Treatments 2 0 Cost Price Distribution Grain price t Normal 00 sd Harvest byprod t Fixed 00 Base prod costs ha Fixed 00 fert cost kg Fixed 45 N cost per appl Fixed 00 Irrig cost mm Fixed t Irr cost per appl Fixed m Seed cost kg Fixed 50 Organic amends t Ignored 46 P fert cost kg Ignored P cost per appl Ignored 2 2 3 4 5 6 7 8 9 0 1 F1 Help Press any key to continue 214240 Mem SCREEN 17 standard deviatio
182. he fallow model thus started at different dates but it finished on the same day each year as specified by HDATE Note also that the starting date of simulation is day 244 of 1911 specified by YRDAY in SIMULATION CONTROLS block 1 Initial condi tions relate to this date also ICDAT 11244 in the INITIAL CONDITIONS sec tion and residue is added to the system on day 300 of 1911 RDATE 11300 in the RESIDUES section Planting of maize however first takes place on day 305 of 1911 and on day 305 of each year thereafter PDATE 11305 in the PLANTI NG DETAILS section DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 78 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence DSSAT v3 Volume 3 SIMULATION CONTROL OPTIONS There are a number of simulation control options FILEX that are generally important for sequence analyses refer to the SIMULATION CONTROLS block number 1 i e N 1 in Table 2 These are described as follows NYERS NYERS is the length of the sequence in years it has a different meaning from NYERS in Seasonal Analysis refer to Part 1 of this Volume Volume 3 1 Thornton et al 1994 NYERS may have a value between 1 and 50 Sequence experiments will normally be run using simulated weather i e where the var
183. he listing file 0011 A required file was not found aborting This usually refers to the absence of the file DSSATPRO FLE which could not be found 0 012 Excessive path length error You need to reduce the path length as specified in DSSATPRO FLE for the crop model cc e g MZ Path lengths as specified in the DSSATPRO FLE must be less than 36 characters in total length including drive letter colon and leading and trailing slashes If these paths are modified using the SETUP menu of the DSSAT v3 Shell see Volume 1 3 Hunt et al 1994 of this book for a description of the SETUP menu then there is no problem as the screens will not allow you to enter paths longer than this If you modify DSSATPRO FLE with a text editor then you need to ensure that this total length is not exceeded 0013 No code error The crop code specified e g MZ could not be found in the file DSSATPRO FLE This will occur if a cultivar is specified in FILEX that does not have a valid crop code 0014 Read error in file An undefined read error occurred when reading the specified file check the for mat of the file 0 020 A problem was encountered executing another program The driver was not able to execute another program Check the free RAM that you have on your computer and increase it if possible by unloading unnecessary resident programs e g a network DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volu
184. he next step is to analyze this and compare treatments these treatments may or may not be replicated but in seasonal analysis there will usually be a number of replicates A brief overview of the analysis program s capabilities follows together with some general usage notes It should be noted that the analysis pro gram can handle a maximum size of 30 replicates or 20 treatments Figure 2 shows the major menu options available The program does the follow ing Biophysical Analysis Calculates means standard deviations maxima and minima by treatment for any or all of the 35 summary output file variables These can be plotted as box plots cumulative function plots or as mean variance diagrams All graphs can be screen dumped to a printer or output to a file for plotting Economic Analysis Calculates means standard deviations maxima and minima by treatment of economic returns and plots these as box plots cumula tive function plots or mean variance diagrams Prices and costs can be changed within a session and price cost variability can be included in the analysis I QUIT BIOPHYSICAL ECONOMIC SELECT MODEL SELECT GRAPHICS ANALYSIS ANAYLSIS OUTPUTFILE HARDCOPY OPTIONS SELECT OUTPUT ACCESS A EDIT PRICE CALUCULATE ECON VARIABLE S PRICE FILE FILE OMIC RETURNS CALCULATE amp TABULATE TABULATE SUMMARY STATISTICS SUMMARY STATISTICS PLOT GRAPHS PLOT GRAPHS PERFORM STRATEGY ANALYSIS
185. he same directory In the case of the DSSAT v3 Shell this will generally be the DSSAT3 directory If model exe cutable files are not found in that directory then an error message is printed and the user must arrange the executable files so that this condition is met The file DSSATPRO FLE see the Appendix to Volume 1 of this book for a description of this file is also expected to be in this same directory with appropriate pointers to the relevant directories From within DSSAT v3 the current directory for seasonal runs will generally be DSSAT3 SEASONAL where such files as EXP LST SEASONAL LST and appro priate FILEXs are stored The file EXP LST may contain up to 99 experiments a limit imposed by the file structure Up to 99 treatments may be simulated using the driver again a limit imposed by FILEX but it should be noted that the seasonal analysis program has a limit of handling a maximum of 20 treatments and 30 replicates i e a total of 600 separate model runs AN EXAMPLE On activating the Simulate option under the Seasonal window Screen 1 fol lowing page from the DSSAT v3 Shell main menu item ANALYSES the driver program is activated and after an introductory screen the user is presented with the following screen Screen 2 following page Screen 2 contains the contents of the file EXP LST the listing file in the current directory of selected FILEXs for sea sonal analysis This lists the file name cr
186. hich makes the generators more stable than the original versions Monthly input parameters are now used for all variables with linear interpolation computed internally The modified SIMMETEO model uses monthly climate parameters and regression equations Geng et al 1988 Geng and Auburn 1986 Pickering et al 1988 to compute the standard devia tions The GENERATE menu provides the utilities necessary for estimating the genera tor parameters and generating daily data The GENERATE menu is shown in Screen 28 below and its options are described as follows CALCULATE PARAMETERS When the Calculate parameters option shown in Screen 28 is selected the Calculate Parameters dialog box shown in Screen 29 on following page is presented From Screen 29 the parameters for WGEN or SIMMETEO can be computed sepa rately or together A standard Time Period dialog box i e Starting and Ending dates is included in the dialog box shown in Screen 29 allowing you to choose a particular time period if desired The default is to use all the data in the archive file and the dates presented when Screen 29 appears should represent the range of dates available in the archive file The computed monthly parameters are recorded in the climate file Estimating the SIMMETEO parameters is equiva lent to calculating monthly means from the STATION menu see Screen 14 both File Station Import Export Generate Analyze Options Quit 14 55 44
187. his default file may be as simple or as complicated as the user requires User Specified Price Cost File You can browse the directory struc ture of your hard disk and highlight the file you want to use The directory can be browsed using the arrow keys and pressing the ENTER key for the highlighted selection Alternatively the mouse can be used to move the highlight bar and the right hand mouse button will select the highlighted file DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 34 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal A DSSAT Version 3 0 Cropping Season Analysis Tool r Main Menu FILE EXT ENAME Access a price file current file UFGA7812 PRI Edit price file for sensitivity analysis Calculate economic returns Exit F1 Help 214240 Mem SCREEN 15 nalysis Seasonal Analysis If no price cost file can be found or if no tied price cost file exists then the pro gram will generate a tied price cost file using default values These values can be edited as required see following section DSSAT Version 3 0 Cropping Season Analysis Tool r Main Menu Options Price File Access Use
188. iable WTHER one of the METHOD options is set to W or S If you have a real long term experiment this will presumably be unreplicated in terms of weather you may then use WTHER set to M measured weather If for any reason you want to run a replicated sequence using historical weather you would have to set up the FILEX to have multiple treatments with a different FIELDS block for each repli cate you would specify the germ for each treatment and specify a different histori cal weather file to start the run with under the WSTA header variable in each FIELDS control block You would then need to check the availability of historical weather data files NREPS NREPS specifies the number of replicates of the rotation or crop sequence It may vary from 1 to 20 The impact of replication on the stability of simulation results is very important and is addressed in the Appendix to this Part CAUTION You are highly recommended to read the Appendix before using any of the sequence capabilities of DSSAT 03 it is easy to produce misleading results from analysis of simulated sequence experiments RSEED RSEED is the random number seed for weather generation With the same seed you will obtain the same sequence of random numbers and hence the same sequence of daily weather if you start from the same starting date of simulation SDATE RSEED is used only if WTHER is set to W or S When sequences are replicated th
189. ibution parameters used by the WGEN weather generator The RANGE CHECK VALUES section contains the values used to check for outliers and suspect data during the Import process The FLAGGED DATA COUNT section contains counts of total erroneous and suspect data in the archive file CLIMATE LAT LONG ELEV TAV AMP warmest and SRAY TMXY TMNY RAIY START DURN ANGA ANGB REFHT WNDHT GSST GSDU Latitude degrees north Longitude degrees east Elevation m Mean annual temperature C Half of the mean temperature difference between the coolest month Mean annual daily solar radiation MJ m2 day Mean annual daily maximum temperature Mean annual daily minimum temperature C Mean annual daily rainfall mm Mean day of year of the first frost free day Mean number of days between the last and the first frost Intercept A in the Angstrom equation Prescott 1940 Multiplier B in the Angstrom equation Prescott 1940 Height of weather instruments above ground m Height of annemometer above ground m First year of observed weather data Number of years of observed weather data DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 197 WeatherMan DSSAT v3 Volume 3 198 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM MONTHLY AVERAGES MONTH Month 1 January 2 Fe
190. ification 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 34 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas 1039 Crop code not matched in price file There was no section in the price file corresponding to the specified crop code you must edit the file so that this section exists 1040 Read error in price file Check the format of the price file a read error occurred 0041 Cannot find file Specified file cannot be found 0042 Error in 0 043 Read error in file Read error in the specified file 0 044 Must have at least 2 replicates for a CPF plot See message 014 1045 Error in TUKEY FOR Enter to quit See message 023 0 046 ERIC2 size problem Array overflow error 1047 A price file must be accessed using opt 1 before using this option You must access a price file before attempting to carry out the economic calcula tions 0 048 Error in CONVOL FOR Error in combining distributions 1 049 variances are zero Enter to continue See message 027 1050 Cannot find a file choose again 1051 You must first select an analysis Select one of the analysis options before continuing 1052 AII data are ZERO Plotting causes unpredictable behavior 1055 Problem in
191. ified in the GCRULES FLE file was reached before an acceptable end point was reached Other codes that may appear are defined in Appendix C Exit Screen 10 by pressing the F7 key if using the editor TVED EXE dis tributed with DSSAT v3 If you are using an editor of choice use the required key to exit the screen You will be returned to Screen 9 Now in Screen 9 press the E key to view the end points in the END POINT TMP file see Screen 11 below For each coefficient with an associat ed letter noted in Screen 10 make a note as to whether the simulated value is greater or less than the measured value GENOTYPE COEFFICIENT CALCULATION END POINT COMPARISONS EXPERIMENT TRTMT COEFF NAME SIMULATED MEASURED REFERENCE TRAIT 5 51800 1 3 DESP P2 61 000 000 SILKING DATE 51800 1 DUJU P1 61 000 000 SILKING DATE IBSI800 1 2 DUGF P5 11 000 000 MATURITY DATE IBSI800 2 3 DESP P2 61 000 000 SILKING DATE IBSI800 2 DUJU P1 61 000 000 SILKING DATE IBSI800 2 2 DUGF P5 11 000 000 MATURITY DATE IBWA8 30 1 3 DESP P2 76 000 79 000 SILKING DATE IBWA8 30 1 DUJU P1 78 000 79 000 SILKING DATE IBWA8 30 1 2 DUGF P5 37 000 139 000 MATURITY DATE IBWA8 30 2 9 DESP P2 76 000 79 000 SILKING DATE IBWA8 30 2 DUJU P1 78 000 79 000 SILKING DATE IBWA830 2 2 DUGF P5 37 000 135 000 MATURITY DATE IBWA8 30 3 3 DESP 2 76 000 78 000 SILKING DATE IBWA830 3 DUJU P1 78 000 78 000 SILKING DATE IBWA8 30 3 2
192. ile increasing the variabili ty as described by the variance for the output of interest Choose the mean variance plot option to produce the plot Screen 14 below The y axis for such a plot is always scaled automatically and care will sometimes be needed in interpretation as the difference between the means i e the differ ence from the top to the bottom of the scale may not be very much and will sometimes be much less than appears from a cursory glance at the graph To print the plot press the lt P gt key or press any key to return to the Graphics Regression main menu Screen 10 E V PLOT OF HAR YIELD kg ha MEAN N N 500k 000k 500k 000k 500k 21 226 28 25 29 100 0k 200 0k 300 0k VARIANCE 400 0k 500 0k HWAH SCREEN 14 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 100 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence OPTION 4 If this option is selected in Screen 10 a time series is produced Screen 15 below of the variance of the output variable chosen over the length of the sequence The variance will often be of use in determining whether variability
193. ing WeatherMan under DSSAT v3 The directory name and any command line options for the user s favorite editor can replace the default editor TEMPORARY FILES When the Temporary files option is selected the Temporary File Options dia log box shown in Screen 43 on following page is presented From this dialog box you can control the status of temporary files The files that are temporary are filled and generated archive WTD files and sta DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 189 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM r Temporary File Options Filled and generated archived files e Discard at end of session Prompt for each file Keep at end of session Summary statistics files e Discard at end of session Prompt for each file Keep at end of session SCREEN 43 tistics SUM files These files should normally be deleted to avoid wasting disk space but may be retained if desired For example generation and analysis of a very long weather record may justify keeping the generated and statistics files GRAPH COLORS AND GRAPH OPTIONS Both Graph colors and Graph options allows you to set graph options Graph colors When the Graph colors option is selected a
194. inimum MNCEF or increase the maximum for rule set 2 of the crop in question depend ing on whether the coefficient value noted in Step 11a was near the minimum or maximum Then exit the rules file and proceed as indicated in Step 6 G C CALCULATOR INDIVIDUAL VERSION 3 PRESS G to select more GENOTYPES C to select another CROP ENTER to return to the main menu Determine genotype coefficients for one or more experiments calculate average values after determining coefficients for several experiments SCREEN 12 DSSAT v3 Volume 3 218 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype 12 13 14 If the coefficient calculations proceeded to completion satisfactorily press the ENTER key and you will be prompted in the next screen for selection of another genotype of the same crop for the selection of another crop or for return to the main menu Press the ENTER key to return to the GenCalc main menu Screen 2 and once within the main menu press for the calculation of average coefficients from previous determinations Selecting A allows you to calculate the AVERAGES of coefficients calculat ed from various
195. ion file Output drivers Epson 9 Pan 60 poson S eaim i120 Epson 9 Pin 240 Epson 24 Pin 180 Epson 24 Pin 360 Epson 24 Pin 360 Graph Output Options x x 72 dpi 72 dpi 216 dpi 180 dpi 180 dpi 360 dpi HP LaserJet DeskJet B amp W 100 dpi HP LaserJet DeskJet B amp W 150 dpi HP LaserJet DeskJet B amp W 300 dpi HP DeskJet 500C 100 dpi 8 color LPTI LPT2 COMI COM2 file O0 Orientation e Landscape 4442 ScREEN 45 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 191 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM WM CEFG while Graphics program options are saved to DEVICE FLE and GCON FIG FLE These options are then used the next time WeatherMan is started Quit MENU When the QUIT menu item is selected from the WeatherMan main menu you can choose to exit the program You may also use the lt ALT gt lt Q gt key sequence as a shortcut key sequence to quit The user may also use the shortcut key options lt ALT gt lt X gt or lt ALT gt lt FX gt under the FILE menu to quit the WeatherMan program DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3
196. ion will overwrite manually entered data DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 162 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Station Data Location Gainesville Florida Latitude degrees 29 630 Longitute degrees 82 370 Elevation m 10 0 Angstrom coefficient A 0 25 Angstrom coefficient 0 50 Reference height m 1 00 Wind reference height m 3 00 Mean annual temperature C 20 9 Temperature amplitude C Uo Start of growing season day 1 Duration of growing season days 365 SCREEN 15 Monthly mean hours of bright sunshine and Angstrom coefficients Prescott 1940 are included to aid in the estimation of missing daily solar radiation data File Station Import Export Generate Analyze Options Quit 122351339 s Monthly Means and Rainfall monthly values Total Number Mean Angstrom coef SPRAD TMAX TMIN rain of wet SUNH A B Mon MJ m2 C C mm days Y int slope 1 10 9 19 3 5 7 94 2 8 7 9920 0 250 0 500 2 13 4 212 7 2 SES 8 3 99 0 0 250 0 500 3 17 2 24 3 10 0 109 8 8 3 29950 0 250 0 500 4 21 4 28 0 13 5 78 7 5 8 2209710 0 250 0 500 5 223 3059 17 1 101 1 Ju 29970 022507 02500 6 20 8 32 5 20 6 165 9 12 4 99 0 0 250 0 500 7 2088
197. ions one headed MZ1 and one MZ2 If no integer is specified with the crop code it is assumed to be a general section and will be used for all compo nent numbers with that crop code OPTION 2 CHOOSE TO INCLUDE EXCLUDE FALLOW PERIODS IN ANALYSIS The second option in the Economic Evaluation menu Screen 25 allows the user to decide whether to include or exclude the effects of fallow periods in the analy sis Selecting this option toggles the text from include to exclude or vice versa Fallow periods often have some economic cost and you may want to incorporate these into the analysis If you include them then you must have a fallow section in the cost price file you are using EDIT PRICE FILE FOR SENSITIVITY ANALYSIS When you choose this option in Screen 25 the program loads the default editor and the price file that has been selected You may then make changes to the price file save it and exit to the analysis program The editor that the program will load is the editor specified in the SETUP menu item of the DSSAT Shell see Volume 1 3 Hunt et al 1994 of this book for a description of the SETUP menu item You should be careful when making edits in the price file that you pre serve the format of the file otherwise you may obtain error messages when the analysis program tries to read the modified file OPrION 4 Do ANALYSIS CALCULATE ECONOMIC RETURN S When this option is selected from Screen 25
198. is Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Columns 165 252 NITROGEN 335394 RU quasi ise ORGANIC MATTER PHOSPHORUS NI M NUCM NLCM NIAM GNAM RECM CPAM SPAM 0 0 0 26 22 24 26 12 5000 4260 43 0 0 0 0 0 0 0 0 14 40 0 0 3734 4221 42 0 0 0 0 0 0 0 13 29 24 13 6 0 4199 42 0 0 0 0 0 0 0 0 16 44 0 0 2112 4162 42 0 0 0 0 0 0 0 24 15 24 24 12 0 4139 42 0 0 0 0 0 0 0 0 13 42 0 0 3336 4098 41 0 0 0 0 0 0 0 12 31 23 12 5 0 4077 41 0 0 0 0 0 0 0 0 11 48 0 0 1841 4040 41 0 0 0 0 0 0 0 27 15 22 27 13 0 4017 40 0 0 0 0 0 0 0 0 11 36 0 0 3396 3980 40 0 0 0 0 0 0 0 5 30 23 5 1 0 3960 40 0 0 0 0 0 0 0 0 15 48 0 0 1114 3921 39 0 0 0 0 0 0 0 14 29 23 14 6 0 3898 39 0 0 0 0 0 0 0 0 10 42 0 0 2215 3863 39 0 0 0 0 0 0 0 26 13 22 26 13 0 3842 39 0 0 0 0 0 0 0 0 13 31 0 0 3714 3806 38 0 0 0 0 0 0 0 19 17 20 19 10 0 3788 38 0 0 0 0 0 0 0 0 13 43 0 0 2490 3752 38 0 0 0 0 0 0 0 20 19 22 20 9 0 3731 38 0 0 0 0 0 0 0 0 15 34 0 0 2901 3695 37 0 0 0 0 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 86 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence 0 002 No entries found in file The FIL
199. is happening a better solution is to edit treatment numbers in the relevant FILEX itself 1013 Cannot find file The specified file cannot be found 1014 Must have at least 2 replicates for a CPF plot To plot cumulative probability functions you must have a distribution with at least 2 values or replicates 0 015 A problem was encountered generating a price file Restart now An internally generated price file could not be completed 1020 A problem was encountered executing another program The program was not able to execute another program check the free RAM that you have on your computer and increase it if possible by unloading unnecessary resident programs e g a network 1021 A problem was encountered copying a file The specified file could not be copied successfully 1022 A problem was encountered erasing a file The specified file could not be erased successfully 1 023 Error in TUKEY FOR An error occurred when calculating percentiles of a distribution 1024 READ Error in file A read error occurred in the specified file check the format of the file 1025 Unequal treatment reps in file Unequal treatment replicates were found in the selected summary output file exit and fix the file to avoid this message DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 50 is Analysis Seasonal Analysis
200. isting of all the 35 output vari ables written to the summary output file You can scroll up and down this list using the lt gt and lt gt keys on the keyboard Choose variable number 9 HAR YIELD kg ha i e harvest yield in Screen 8 by placing the cursor bar over the variable in the list and select it by pressing the space bar A tick mark in the bracket to the right of the variable indicates that this is the variable selected The space bar can be used to toggle the selection off and on DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 26 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis DSSAT Version 3 0 Cropping Season Analysis Tool AUTOMATIC AUTOMATIC AUTOMATIC AUTOMATIC AUTOMATIC Treat Title Field UFGAO001 UFGA0001 UFGA0001 UFGA0001 UFGA0001 UFGA0001 File Title GAINESVILLE FLORIDA SB IRRIGATION EXPERIMENT Experiment Code UFGA7812 Crop Group SN Runs 120 Replications Reps 20 20 20 20 20 20 Crop SB SB SB SB SB SB Fl Help Press any key to continue 214240 Mem SCREEN 7 DSSAT Version 3 0 Cropping Season Analysis Tool r Main Menu Analysis START SIM day PLANTING day ANTHESIS day MA
201. ith a specific set of daily weather variables Table 3 The set of variables default range check values minimum maximum and maximum daily change associated units and unit conversion factors multiplier and offset are specified in a file called WM VAR Variables are stored in their default units in the archive files If you wish to add or change variables or units please con tact the authors for assistance FILE MENU The FILE menu item found on the WeatherMan main menu gives access to an editor DOS functions and additional help The FILE pull down menu is shown in Screen 12 below and its options are described as follows The Edit option accesses text editor so that data files can be viewed edit ed The user can use his her own editor by changing the default under the OPTIONS Directories menus File Station Import Export Generate Analyze Options Quit 14 55 44 Edit Invert Change dir DOS shell About Exit Alt X SCREEN 12 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 157 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM TABLE 3 WEATHERMAN VARIABLES AND ASSOCIATED UNITS Variable SRAD TMIN RAIN WIND SUNH PAR TDRY TWET
202. ivar file in Screen 14 above Coefficients that were not estimated or for which calculations were terminated before an acceptable end point was reached are displayed as zeros These coefficients would have had a letter associated with them in the COEFF TMP file see Step 11 In the dialog box at the bottom of Screen 14 press Y to select an additional run Press Y again when the second set of coefficients has been calculated Press Y and 3 to select results from the third run This time press N at the prompt in Screen 14 to indicate that run selection is complete At this stage a list of standard deviations for coefficients in the different runs is presented Select the one with the lowest standard deviation for the target coefficient A list of new and old mean coefficient values is now displayed In this list coefficients that were not calculated will have been replaced by those in the cultivar file Press Y at the prompt to accept all values DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 220 or DSSAT v3 Volume 3 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype 20 Respond with a Y to the prompt asking whether or not to replace the old values in the cultivar fil
203. les Jones et al 1994 to obtain required information on experimental conditions and experimental results An exam ple is shown in Table 4 TABLE 2 EXAMPLE OF A CULTIVAR GENOTYPE COEFFICIENT FILE WHEAT NGENO 0002 0003 0004 0005 0006 0030 0031 0032 0033 DSSAT v3 Volume 3 DSSAT v3 GENOTYPE COEFFICIENTS NAME TYPE DUGF DESV DESP GNUM GGRO GNUS BIOM WARED WH6X 470 0030 0054 30 00 00 67 WALDRON WH6X 470 0030 0054 30 00 00 67 ELLAR WH6X 470 0030 0054 28 50 00 67 BUTTE WH6X 470 0030 0054 19 00 235 67 WARD WH6X 470 0030 0030 23 00 00 67 RONGOTEA WH6X 470 0030 0054 13 00 70 60 KOPARA WH6X 470 0030 0054 13 00 70 60 BOUNTY WH6X 472 0330 0074 21 00 295 60 MOULIN WH6X 472 0330 0078 24 00 35 63 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 221 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff TABLE EXAMPLE OF THE REQUIRED SECTION OF THE OVERVIEW OUT Fie MAIN CROP VARIABLES VARIABLES PREDICTED EASURED ANTHESIS DATE 91178 91179 MATURITY DATE 91207 91207 GRAIN YIELD kg dm ha 7489 1234 GRAIN WEIGHT mg dm 27 0 20 5 GRAIN NUMBER no m2 27771 99 GRAINS PER SPIKE 65 3 99 0 MAX
204. like Screen 11 above Graph and print the results Note the similarity between observed and generated maximum temperatures and the effect that rain i e WET vs DRY state has on maximum temperature ExPORT DAILY W EATHER FILES Go to IMPORT EXPORT Export yearly files Select the predefined DSSAT format file Single year files will be named automatically using a default naming convention For this example the first file exported will be called CCQU8001 WTH containing data for 1980 Use FILE Edit to access an exter nal editor to view the newly created CCQU8001 WTH Also view the original file that you imported CCQU1980 DAT and note the changes in format and units You are now familiar with the basic features of WeatherMan Additional details on each menu in the WeatherMan main menu screen are described in Chapter 4 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 1535 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 156 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan CHAPTER FOUR W EATHERMAN REFEREN CE GUIDE VARIABLES WeatherMan works w
205. lts from the model s are saved in EBAF1101 SQS and analysis results in EBAF1101 SQR If you want to change the results file name enter a new name 8 characters maximum Do not add the DSSAT Version 3 0 Crop Sequencing Analysis Main Menu Select a cropping season file for analysis Analyse Biophysical variables Analyse Economic variables Modify hardopy options About SUSTAIN2 Exit 71440 Mem F1 Help SCREEN 4 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 91 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis extension this is added automatically and cannot be changed and will always be ccR where cc is the crop code usually SQ for sequence analysis If the summary output file chosen contains more than 1 treatment you will be asked to select which treatment to analyze If there are more than 10 treatments in the file then you may select only from amongst the first 10 the rest will be ignored The next screen presented Screen 6 on following page summarizes the simula tion runs found in the chosen summary output file The experiment code num ber of runs and replicates starting and ending year of the sequence the number of model runs per replicate the
206. lysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas An example of a seasonal analysis FILEX is shown in Table 2 Though not all of the SIMULATION CONTROL blocks of FILEX appear in Table 2 you can print a full listing of this file UFGA7812 SNX found on the DSSAT v3 distribution diskette Refer to the shaded portions in Table 2 when reading the following paragraphs In the TREATMENTS section of the file treatments are specified as for a regular experiment You need to ensure that the treatment numbers are in ascending con secutive order treatment numbers are specified in the two columns with header In Seasonal Analysis the options R O and C should always be left at their default values of 1 0 and 0 respectively Because the example experiment UFGA7812SN is a comparison of automatic irriga tion schedules the example found in Table 2 requires 6 simulation control sections as specified by the simulation control factor levels SM under TREATMENTS In the SIMULATION CONTROLS blocks in Table 2 there are a number of simula tion control options that are generally important for Seasonal Analyses These are described as follows NYERS NYERS is the number of replicates for the experiment and should have a value between 1 and 30 You may need to check the availability of historical weather data files if you are running a number of replicates and the weather data switch WTHER one of the METHODS opti
207. maturity kg ha CNAM CROP N kg ha Tops N at maturity kg ha G R 0 PRODUCT kg ha Product at maturity kg ha ECM RESIDUE kg ha Total residue applied kg ha AM ORGANIC kg ha Org soil at maturity kg ha OCAM ORGANIC C t ha Org soil C at maturity t ha PO M P APPL Number of P applications no POCM TOT P APP kg ha Total P applied kg ha CPAM CROP P kg ha Tops P at maturity kg ha SPAM SOIL P kg ha Soil P at maturity kg ha 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 47 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis SELECTING ANOTHER INPUT FILE FOR ANALYSIS Having analyzed one simulation summary file you can choose to analyze anoth er file in Screen 5 Note that a new analysis results SNR file will be produced for each summary output file SNS you analyze You can choose to print the results file at this stage in the program if you require see following paragraph When you have concluded all the analysis you require quit the program from the main menu screen Screen 5 A message will appear with a reminder of the path and name of the log file containing analysis results that has just been produced an example of part of such a
208. me 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 20 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis 0 021 A problem was encountered erasing a file The specified file could not be erased 0 022 A problem was encountered copying a file The specified file could not be copied successfully 1 055 Problem in finding the appropriate help screen The required help screen or the help screen file SEADRV HLP could not be found 1 100 Error Undetermined error 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 21 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 22 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis CHAPTER FOUR ANALYZING SEASONAL ANALYSIS EXPERIMENTS O VERVIEW Having produced a summary simulation output file from a seasonal experiment t
209. ments at once with the lt gt or lt gt key as described before under Screen 8 or individual treatments with the space bar If more than six treatments are selected the program will plot the first six treatments selected and the rest will be ignored For the example keep all treatments selected as illustrated in Screen 12 and press the ENTER key The resulting plot is shown in Screen 13 on following page To print the graphs press the lt P gt key press the ENTER key to return to the Graphics main menu Screen 10 OPrioN 3 MEAN VARIANCE PLOT When this option in Screen 10 is selected output variables may be plotted in mean variance space The calculated mean is plotted against the variance for the output variable of interest and the treatment numbers themselves are drawn on the graph A maximum of 20 treatments may be plotted in this way Such graphs are another way of giving an indication of the relative variability associated with each treatment and are useful for visualizing the tradeoffs that must sometimes be made between striving for a higher mean value while increasing the variability as described by the variance for the output of interest Choose the mean variance plot option to produce the plot Screen 14 on second following page Note the high variance and comparatively low mean for the 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V
210. mp W 100 dpi 7 HP LaserJet DeskJet B amp W 150 dpi 8 HP LaserJet DeskJet B amp W 300 dpi 9 HP DeskJet 500C 100 dpi 8 color 10 HP DeskJet 500C 150 dpi 8 color 11 HP DeskJet 500C 300 dpi 8 color 12 HP PaintJet 90 dpi B amp W 13 HP PaintJet 180 dpi B amp W 14 HP PaintJet 90 dpi 16 color 15 HP PaintJet 180 dpi 8 color 16 HP PaintJet 180 dpi 16 color XL 17 HP ThinkJet 192 dpi 18 HP 7475A Plotter A size paper 19 HP 7475A Plotter B size paper 20 HP 7475A Plotter A4 size paper 21 HP 7475A Plotter A3 size paper 22 HP 7550 Plotter A size paper 23 HP 7550 Plotter size paper 24 HP 7550 Plotter A4 size paper 25 HP 7550 Plotter A3 size paper 26 HP 7440 Plotter A4 size paper 27 HP 7470 Plotter A3 size paper 28 HP LaserJet HPGL Mode A size paper 29 HP LaserJet HPGL Mode B size paper 30 PostScript Printer Courier 31 PostScript Printer Helvetica 32 PostScript Printer Times 33 PostScript Printer Symbol DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 124 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence TABLE 8 EXPERIMENT DATA Copes Fite DATA CDE SUMMARY SECTION ONLY SUMMARY SDAT START SIM day PDAT PLANTING day ADAT ANTHESIS day A IATURITY day HDAT HARVEST day DWAP SOWING WT kg ha
211. n WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Files To Import Weather file Format CCQU1980 DAT CCQU 2 Add file CCQU1981 DAT CCQU L CCQU1982 DAT G G U Remove file CCQU1983 DAT CCQU CCQU1984 DAT Select format CCQU1985 DAT Add Group cancel j v SCREEN 8 CALCULATE W EATHER GENERATOR PARAMETERS Go to GENERATE Calculate parameters to calculate parameters for both the WGEN and SIMMETEO weather generators Use the F1 key to see the differ ences between WGEN and SIMMETEO For a more complete description of these two generators see the section Generate Menu in this Chapter Go to STATION Edit monthly means to view the monthly means which are used as parameters for SIMMETEO The WGEN parameters cannot be viewed or edited directly from WeatherMan They are however saved in a file CCQU CLI in the climate directory and can be edited from the DSSAT v3 Shell see Volume 1 3 Hunt et al 1994 of this book for a description of the Shell G EN ERATE W EATHER DATA Go to GENERATE Generate data Select SIMMETEO and simulate data for the same period of time as the data that you imported This period of time becomes the defaults in the Generate Weather Data dialog box Screen 30 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3
212. n maximum and minimum value of net return or gross margin per hectare for each treatment see Screen 19 on following page using the costs and prices specified Note that for the example returns per hectare are highly DSSAT Version 3 0 Cropping Season Analysis Tool Cost Price Sensitivity Analysis All Treatments No Cost Price Distribution Values it Edit Normal av 320 00 32 00 Grain price t pde 00 Harvest byprod t Fixed 345 00 Base prod cost ha Fixed 45 fert cost kg Fixed 12 00 cost per appl Fixed 50 Irrig cost mm Fixed 12 50 Irr cost per appl Ignored 46 Seed cost kg Ignored Organic amends t Ignored fert cost kg P cost per appl Done with changes F1 Help 214240 Mem SCREEN 18 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 40 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis DSSAT Version 3 0 Cropping Season Analysis Tool Economic Analysis Money per Hectare Treatment Field Crop Mean St Dev Min Max 1 PAINTED cpare iniata UFGA0001 SB 623 2 236 9 65 7 1045 0 2 90 UFGAO001 SB 356 5 191 3 20 6 671
213. n 4 0 200 L m 1 E L _ 4 idee TT 0 000k 0 180k 0 360k 0 540k 0 720k 0 900k 1 080k MONEY HA H 1 D 1 TRT2 31 3 H 1 4 1 TRT5 O 1 TRT6 SCREEN 28 2 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 65 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 66 VOLUME 3 2 SEQUENCE ANALYSIS THORNTON P W W ILKENS HOOGENBOOM J W JONES IN TERN ATION AL FERTILIZER DEVELO PM EN T C EN TER UNIVERSITY OF FLORIDA UNIVERSITY GEORGIA INTERNATIONAL BENCHMARK Sites ETW ORK FOR AGRO TECHN O LOGY TRANSFER Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 68 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence CHAPTER ONE IN DUC
214. nd Time structure The default choice is to cal culate moments only Moments includes means standard deviations and DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 180 WeatherMan WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Time structure Summary Statistics Type of Statistic Grouping X Momments X Monthly summary Percentiles L Monthly time series Distibution Yearly time series 1 Year Day of year Starting date 1980 1 Ending date 1987 365 SCREEN 32 skewness coefficient Percentiles are the 0 25 50 75 and 100 percentiles Distribution includes both histograms and cumulative probabilities Time structure includes autocorrelograms for all variables except rainfall and has conditional probabilities for rainfall All statistics are automatically computed for wet dry and for all days except Time structure which uses all days Also in Screen 32 three statistics groupings can be selected Monthly summa ry Monthly time series and Yearly time series fourth grouping com prised of all data combined is automatically performed with the monthly sum mary The time series analyses are relatively slow since they
215. ng the TAB key and SPACE bar Disable all other plot ranges in Screen 9 9 Time Plot Ranges Type I Plot Num Station Variable Grouping 1 X 00 RAW 1 2 X ccou TMIN Range 3 X CCQU RAW RAIN J 4 X CCQU RAW Graph 5 X ccou RAW J 6 X CCQU RAW l 1 Cancel SCREEN 9 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM To view the graph select the GRAPH button If the graph is cluttered you can plot a specified range of dates by selecting the RANGE button Print the graph by pressing the P key while the graph is displayed Printing will take several minutes Pressing the lt G gt key toggles the grid lines on or off Press any other key to return to Screen 9 GRAPH STATISTICS FOR O BSERVED AND GEN ERATED DATA As an example graph we will compare monthly means for maximum daily tem perature for observed and generated data and for wet days and dry days In the screen presented Screen 9 when ANALYZE Graph is selected press the GROUPING button and then the Monthly summary time grouping Highlight the station for the first plot range and use the down arrow icon to select statistics for gene
216. o 1 ALL YRS SCREEN 33 Press any key then press lt Escape gt three times to return to the Analysis Main Menu Screen 4 MobDIFY HARDCOPY OPTIONS Select this option in the Sequence Analysis main menu in Screen 4 to change the way in which hardcopies of graphs are produced on your printer or plotter The screen that appears Screen 34 on following page lists the current graphics hard copy options These are stored in an ASCII file called GRAPH INI see Table 6 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 121 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu Hardcopy Printer driver HP LaserJet DeskJet B amp W 150 dpi Printer port LPT1 Orientation Portrait X Multiplier 1 00 Y Multiplier 1 00 File name C NDSSAT3NSEQUENCENVARAN200 GRA Save changes and exit Abandon changes and exit Fl Help 71440 Mem SCREEN 34 The various controller options can be changed from this screen simply by selecting the option to change and choosing any of the valid options thus your printer port might be LPT2 rather than LPT1 On finishing you can abandon the changes you have made or you can save the
217. o carry over effects from one season or crop to the subsequent season or crop Those types of experiments can be simulated and analyzed using the sequence driver and analysis programs see Volume 3 2 Thornton et al 1994 of this book for a description of these pro grams Seasonal Analysis is useful for comparing methods of managing a crop in particu lar environments such as different planting dates varieties or fertilizer applica tion regimes for example If such comparisons are made across many different types of weather years then the variability associated with crop performance as a function of the interactions between weather and other factors of the physical environment can be isolated and quantified The information produced can be used to help pre screen a wide variety of different options the most promising of which might then warrant further evaluation and eventually field testing There are three basic steps involved in Seasonal Analysis 1 The creation of an appropriate model input file 2 Running the crop model s using a special controller program called the sea sonal analysis driver 3 Analyzing the results of the simulation using the Seasonal Analysis program The links between these steps are shown in Figure 1 Seasonal analyses are run from the DSSAT v3 Shell see Volume 1 3 Hunt et al 1994 of this book under the menu item ANALYSES The three steps are explained in Chapter 2 herein 3 DSSAT v3 Volum
218. oblem in regression calculations check the summary output file 1072 Reported regression outputs will not be meaningful Problem in regression 13 Do a regression before plotting You must do a regression before you can plot the results 1 074 All residuals are zero 0075 File DATA CDE not found 0 076 Error in JNO Problem in counter in summary output file check its format 1077 You must choose at least ONE crop code from this list 1078 Multiple crop codes chosen Choose method of analysis 1 079 No data found as specified No data could be found for the variable and crop code s chosen 1 080 data found are zero No non zero data could be found for the variable and crop code s chosen 1081 Problem in ECONO2 Problem in price cost calculations 1 082 You may select up to FOUR crop codes with this option 1082 This is not implemented yet 1083 Box plot of total returns NOT available for only one crop 1100 Warning General warning message 1131 You MUST turn on the printer now or the program will crash 1148 A problem was encountered in trying to print file The results file could not be printed successfully DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 132 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence REFEREN
219. ochrome laptop comput DSSAT Version 3 0 Cropping Season Analysis Tool r Main Menu FILE EXT ENAME UFGA7801 SNS GAINESVILLE SOYBEAN IRRIGATED AND RAINFED UFGA7802 SNS EXAMPLE SEASONAL ANALYSIS SB MZ UFGA7812 SNS GAINESVILLE FLORIDA SB IRRIGATION EXPERIMENT Modify hardcopy options About VARAN2 Exit 1 Help 214240 Mem SCREEN 6 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 25 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas er you can force the program to display screens in monochrome by pressing the lt ALT gt lt F2 gt keys Again note that you cannot reverse the color scheme during a session with the program nor is your preference stored from one session to another Use the mouse or cursor keys to select the third file UFGA7812 SNS in Screen 6 After the file is selected the program gives the user the opportunity to change the name of the analysis results file By default this file name will be the same as the summary output file except the last letter of the extension will be R for results Note that file names are preserved across all three steps of the season al analysis procedure
220. oefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 224 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype APPEN DIX A GENCALC MODEL REQUIREMENTS For use with GenCalc models must satisfy a number of basic requirements as summarized below in Table 1 Details of these requirements are provided below 1 The name of the EXE file should be built in accord with a convention in which the first two spaces are for a standard crop code e g SB for soybeans WH for wheat and the next six are for an abbreviated model name and number e g SBGRO941 for the soybean GRO model 94 version modification 1 2 Input and simulator components of the model should obtain basic run control information from the command line after the executable file name For the simulator component which may be the only component of some models required information encompasses a the name of the experiment details simulator control file b a symbol to indicate the nature of the experi ment details file e g X for a standard experiment details file see Volume 2 1 Jones et al 1994 of this book for a description of this file c a symbol for the mode of
221. often obtain abnormally large economic returns apparently with no N inputs to the system DSSAT Version 3 0 Cropping Season Analysis Tool Strategy Analysis Mean Gini Dominance E x mean return ha x Gini ceofficient ha Treatment E x E x T x Efficient Xes No RAINFED UFGAO001 AUTOMATIC UFGAO001 AUTOMATIC 0001 AUTOMATIC UFGAO001 AUTOMATIC UFGAO001 AUTOMATIC UFGAO001 N N N N N Y N Fl Help Press any key to continue 214240 Mem SCREEN 22 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 43 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas You should also exercise caution when interpreting the economic benefits to fertilizer use in terms of a simulated N response curve for example The economic optimum N application rate will often be overestimated using the model simply because the crop model and the eco nomic analysis will usually assume that all other things are equal Of course they are not the inputs required to obtain a general yield level of 1 t of cereal per hectare and those required to obtain 7 t per hectare are likely to be very different more labor for weed pest and disease control etc This highlights the g
222. olume 3 DSSAT v3 Volume 3 DSSAT v3 3 1 seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas CPF PLOT OF R 13000 I I II TT TT DT T II III I I fa LV ji p ei L Vi 0 800 n h 0 600 m L gt 5 d L 4 lt m x 4 CV 4 0 400 gt 4 nu gt 5 i 8 j L 1 a 4 0 200 ft m 8 fi Jl L II TRT4 1 93 Vy TRT2 a a TRTS TRT6 L 16 4 Lg tr d 1 200k 1 800k 2 400k 3 000k 3 600k 4 200k FHARV YIELD kg ha D 1 0 1 TRT2 gt 1 3 0 1 n 1 TRT5 0 1 TRT6 SCREEN 13 rainfed treatment Treatment Number 1 There is little to choose between Treatments 2 3 and 4 in terms of their mean and variance It seems fairly clear that if the irrigation threshold is at least 50 percent of field capacity then soybean yields are not limited by water availability in this experiment DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 2 2 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Sea
223. on summary output file may not be analyzable 0019 This run mode is not yet implemented 0 020 A problem was encountered executing another program The driver was not able to execute another program check the free RAM that you have on your computer and increase it if possible by unloading unnecessary resi dent programs e g a network 0021 A problem was encountered erasing a file The specified file could not be erased 0 022 A problem was encountered copying a file The specified file could not be copied successfully 1 055 Problem in finding the appropriate help screen The required help screen or the help screen file SEQDRV HLP could not be found 1 100 Error Undetermined error DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 88 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence DSSAT v3 Volume 3 CHAPTER FOUR ANALYZING SEQUENCE ANALYSIS EXPERIM EN TS O VERVIEW Having produced a summary simulation output file from a sequence experiment the next step is to analyze this the experiment may or may not be replicated A brief overview of the analysis program s capabilities follows together with some general usage notes It should be noted that the analysis program can handle a maximum of 1000 separate model runs Figure 2
224. on fol lowing page Screen 38 shows a daily time series of mean solar radiation in MJ m2 day on wetdays SWMN and on dry days SDMN over a 12 month peri 0 In Screen 38 the lower portion of the graphic screen contains legend describing the data plotted The legend contains a representation of the lines and symbols used for each plot a multiplier for scaling the y axis and a brief text description of the variable In general the first 4 characters the variable type If a W DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 185 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Time Plot LI gt gt 5 z nj 8 5 gt E gt zs 5 o nj 3 gt E E SCREEN 38 D or A appears in parentheses it represents wet state i e wet dry or all The next four characters following the first comma are the station name followed by RAW observed data GEN generated data or FIL observed data with any missing or suspect data filled in The text following the final comma represents the time period month year or ALL Variable names that appear in graphs are defined in Appendix A OPTIONS MENU The OPTIONS menu item found on
225. ons found in the SIMULATION CONTROLS block is set to M measured In this case make sure that you have at least NYERS 1 complete years of historical weather data available Most often seasonal analyses are run using simulated weather with this switch set to W as set in Table 2 or S W is for the WGEN Richardson and Wright 1984 weather generator and S is for the SIMMETEO Geng et al 1988 weather generator In either of these cases the climate file for the site with extension CLI will be used by the model NREPS NREPS should be left at the default value of 1 It has no meaning for Seasonal Analysis RSEED RSEED is the random number seed for weather generation RSEED is used only if the WTHER option is set to W or S If you start a simulation from the same starting date SDATE with the same seed you will obtain the same sequence of random numbers and hence the same sequence of daily weather DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 6 isAnalysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis TABLE 2 PART OF INPUT Fie UFGA7812 SNX XI XC DETAILS UFGA7812SN GAINESVILLE TREATMENTS GN R O C TNAME 1 1 0 0 RAINFED 2 1 0 0 AUTOMATIC 90 3 1 0 0 AUTO
226. op group code generally SN for sea sonal analysis although it may be any valid crop code and a file description The description may be up to 60 characters long if it is shorter the description is padded with full stops The file description is obtained from columns 26 through 85 of the first line of FILEX see Table 2 If the colors on the screen are difficult to see such as when the program is being run on a monochrome laptop computer you can force the program to display screens in monochrome by pressing the lt ALT gt lt F2 gt keys Note that you cannot reverse the color scheme during a session with the program nor is your prefer ence stored from one session to another Use the mouse or cursor arrow keys to choose the Gainesville soybean irrigation experiment FILEX UFGA7812 SNX used in the example in Table 2 If the cho sen FILEX cannot be found an error message is printed on the screen and the menu reappears for making another choice DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 14 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis DECISION SUPPORT SYSTEM FOR AGROTECHNOLOGY TRANSF MODI ANALYSI
227. or Genotype Coefficient Calculator Genotype CHAPTER THREE RUNNING GENCALC When GenCalc is opened from the DSSAT v3 Shell DATA main menu Screen 2 below is presented Follow the procedure in the steps listed below to determine the coefficients for one genotype This procedure is often followed in determining coefficients but it is not the only one It should thus be viewed as a starting point not as a fixed recipe Users may develop a different approach as experience is gained or they may miss some steps Users should also be aware that some errors may cause the software to enter an endless loop Should this appear to happen turn off the computer or re boot by pressing lt CTR gt lt ALT gt lt DEL gt DETERMINE GENETIC COEFFICIENTS 1 In Screen 2 press the lt I gt key This directs the genotype coefficient calculator to determine values for specific experiment treatment combinations 2 Select 8 crop in Screen 3 on following page for the genotype you wish to cal culate GENOTYPE COEFFICIENT CALCULATOR VERSION 3 The calculator can be used to determine coefficients for individual treatments or to calculate averages from previous determinations PRESS I for INDIVIDUAL determinations for AVERAGES calculations to QUIT NB Please ensure that any datasets to be used are model tested Determine genotype coefficients for one or more experiments calculate average values after d
228. orientation 0 fontsize 6 xmult 1 00 ymult 1 00 usetics Y usekeyword 1 file OUTPUT 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 45 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas port 0 for LPT1 1 for LPT2 2 for COM1 for 2 or 4 for redirection of output to a file orientation 0 for portrait or 1 for landscape fontsize fontsize for labels 1 to 20 xmult X multiplier ymult Y multiplier file name for file output if port 4 The printer types supported by the graphics program are shown in Table 7 TABLE 7 PRINTER TYPES SUPPORTED By THE GRAPHICS PROGRAM Driver Number Driver Description Epson 9 Pin 60 x 72 dpi Epson 9 Pin 120 x 72 dpi Epson 9 Pin 240 x 216 dpi Epson 24 Pin 180 x 180 dpi Epson 24 Pin 360 x 180 dpi Epson 24 Pin 360 x 360 dpi HP LaserJet DeskJet B amp W 100 LaserJet DeskJet B amp W 150 dpi LaserJet DeskJet B amp W 300 dpi DeskJet 500C 100 dpi 8 color DeskJet 500C 150 dpi 8 color DeskJet 500C 300 dpi 8 color PaintJet 90 dpi B amp W PaintJet 180 dpi B amp W PaintJet 90 dpi 16 color PaintJet 180 dpi 8 color PaintJet 180 dpi 16 color XL ThinkJet 192 dpi 7475A Plotter size paper 7475 Plotter size paper 7475A Plotter 4 size paper 7475A Pl
229. otter A3 size paper 7550 Plotter A size paper 7550 Plotter B size paper D P P P 3 CO 10014 N ES O I H 1 7550 lotter 4 size paper 7550 lotter A3 size paper 7440 lotter A4 size paper 7470 lotter A3 size paper LaserJet HPGL Mode A size paper LaserJet HPGL Mode B size paper tScript Printer Courier tScript Printer Helvetica tScript Printer Times PostScript Printer Symbol N LH N N N R I 0 0 9 9 9 9 9 9 9 9 9 9 9 IU 1 w w w y tg tg tu DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 46 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Legends for the graphics program are taken from a DSSAT v3 file called DATA CDE see Table 8 For a description of the DATA CDE file see the Appendix to Volume 1 of this book This file lists among other things the head ers abbreviations and definitions of the 35 output variables in the summary model output file that can be analyzed using the seasonal analysis program in the
230. ou specify a rotation germ this is the sequence of crops that will be repeated over and over again In Table 2 for instance the germ consists of maize followed by fallow i e no crop is planted but the models will simulate the soil water and nutrient processes on a daily basis until the next crop is planted Note that the treatment number TABLE 1 SEQUENCE EXPERIMENT LisriNG FiLE EXP LST EXPERIMENT LIST FILENAME EXT 1 UFGA7803 SQX SEQUENCE ANALYSIS SIMPLE MULTI TREAT FILE 5 5 2 UFGA7804 SQX BN BN YR 1 SB YR 2 EXAMPLE 10 5 3 EBAF1101 SQX MA FA 30 YRS 15 REPS NO N DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 73 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis amp N is 1 for both rotation components Each rotation component is assigned a number in ascending order starting from 1 the R column Thus maize is the first component R 1 and fallow is the second R 2 The variables O and C in sequencing FILEXs should always be set to 1 and 0 respectively These are options that have not yet been implemented The rotation germ will be repeated for as many seasons as are specified in the SIMULATION CONTROLS section of the FILEX
231. pecified file cannot be found 0 042 Error in 0 043 Read error in file Read error in the specified file 0 044 Must have at least 2 replicates for a CPF plot 0 046 ERIC2 size problem Array overflow error 1 047 A price file must be accessed using opt 1 before using this option You must access a price file before attempting to carry out the economic calcula tions 1 049 All variances are zero lt Enter gt to continue 1 050 Cannot find a file choose again 1051 You must first select a model output file Select one of the analysis options before continuing 1 052 More than 10 treatments found rest ignored The simulation summary output file contains more than 10 treatments you may choose one of the first 10 only 1053 You must choose a treatment or loop forever 1055 Problem in finding the appropriate help screen The appropriate help screen could not be found 1 058 There were no matching files found 1 060 The requested subdirectory to be searched doesn t exist DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 131 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis 1070 No valid data For the crop code s and output variable selected there are no valid data 1071 Error in regression routine divide by zero or inputs out of range Pr
232. pecify a year of fallow in the experiment simply by setting HDATE to 13304 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 11 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis TiMING CONTROLS One of the most difficult things to define is the control of timing by the driver and the crop models when run in sequence Time is controlled internally in the models and the driver All that is required from FILEX is that there is enough information to specify what happens exactly for the first germ of the rotation In subsequent run throughs of the germ the years of planting fertilizer additions etc will be automatically updated It is important that you understand how these operate for sequencing because some users may want to set up sequence FILEXs manually Some practice will probably be needed in this The table below may help to make things clearer it shows the first few iterations of the sequence specified in Table 2 Run Number Crop Started Finished Year Day Year Day Started refers to the date when the appropriate crop model was called fin ished refers to when the appropriate crop model ended its run The maize model finished its run once maturity had been reached this is dependent on weather to some extent so that it may vary from one year to the next T
233. plying increasingly sensitive analytical procedures in an attempt to distinguish what is probably indistinguishable Visual inspection of the six treatments for mean variance dominance can be done for this experiment see Screen 27 on previous page Treatment 5 has the highest mean but note from Screen 19 of the main text that the standard deviation and hence the variance of Treatments 4 and 5 are lower than that for Treatment 5 According to strict application of the E V rules Treatments 5 4 and 3 are E V effi cient The differences in simulated variances are very small between these three treatments however You should be careful not to be dogmatic in interpretation and bear in mind the errors in the model and the model input data For purposes of comparison inspection of the CPF plot of monetary returns for the six treatments Screen 28 on following page shows that none of the treat ments is dominant by first order stochastic dominance since the CPF for Treatment 5 crosses the CPFs of Treatments 1 and 6 Further analysis outside the DSSAT v3 shows that Treatment 5 is efficient or dominant according to second order stochastic dominance As might be expected the efficient sets of treatments according to the various sto chastic efficiency rules are related see Buccola and Subaei 1984 for more details In essence MG efficient treatments and FSD SSD efficient treatments are members of the EV efficient set further MG efficien
234. potential to produce spurious results is high at this stage in the analysis program To reiterate a major conclusion of Appendix A the chances of obtaining a meaningful regression of means with less than 10 replicates of the sequence are slim You are urged to exercise caution in interpret ing such analyses and this is not something the program can do your own common sense must prevail DSSAT Version 3 0 Crop Sequencing Analysis Main Menu r Analysis hason file for analysis Trends Over Time Regression of Means Do a linear regression Do an exponential regression Plot the regression line Plot the regression residuals NUMBER m2 NUMBER unit IRRIG APPS IRRIG mm PRECIP mm ET TOTAL mm RUNOFF mm TL Fl Help 71440 Mem SCREEN 17 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 103 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis REGRESSION MENU From the regression menu you must first choose to do a regression before plot ting it or the residuals Linear Regression To illustrate choose the option Do a linear regres sion in Screen 17 The resulting screen Screen 18 below gives the ou
235. put distribution for each treat ment is ordered from smallest to largest and plotted against equal increments of cumulative probability After selecting this option the treatment selection screen appears allowing the user to select which treatments are to be plotted in this way see Screen 12 on fol DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 30 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis DSSAT Version 3 0 Cropping Season Analysis Tool r Main Menu Analysis for analysis HAR YIELD kg ha CPF Graph 6 Max UFGA0001 IV 2 AUTOMATIC 90 UFGA0001 3 AUTOMATIC 70 UFGA0001 4 50 UFGA0001 5 AUTOMATIC 30 UFGA0001 6 AUTOMATIC 10 UFGA0001 10 BYPRODUCT kg ha 1 11 WEIGHT mg unit 1 12 NUMBER m2 1 13 NUMBER unit 1 14 IRRIG APPS 1 15 IRRIG mm 1 16 PRECIP mm 17 ET TOTAL mm 1 18 RUNOFF mm D 1 TL 1 Help 214240 Mem SCREEN 12 lowing page A maximum of six cumulative function plots may be graphed at any time and you can select or deselect all the treat
236. r Genotype Coefficient Calculator Genotype Coeff DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 202 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype CHAPTER ONE INTRO DUCTION The Genotype Coefficient Calculator or GenCalc was developed to facilitate determination of the genotype coefficients that are made use of by the IBSNAT crop models Hunt 1988 Hunt et al 1993 The first released version of the soft ware was distributed earlier Hunt et al 1993 Hunt and Pararajasingham 1993 with focus on the crop models distributed with Version 2 1 of the IBSNAT soft ware package called DSSAT DSSAT v3 however has new crop models and new data standards and thus there was a need for GenCalc to be upgraded to facilitate use with the new models The changes required are minor but for consistency it was thought best to issue a users guide that relates specifically to the Version 3 series of models GenCalc V3 0 can be used with any model that is constructed to accord with cer tain basic requirements Appendix 1 In particular it requires genotype coeffi cient files that conform to the standard structures defined in Volume 2 1 Jones et al 1994 of this book and a crop model output file OVERVIEW OUT that con tains a list of simulated and m
237. r eds Crop Modeling and Related Environmental Data A Focus on Applications for Arid and Semiarid REgions in Developing Countries CODATA Monograph Series Volume 1 CODATA Paris France pp 35 72 Hunt L A J W Jones Thornton Hoogenboom D T Imamura G Y Tsuji and U Singh 1994b Accessing data models and application programs In Tsuji G Y G Uehara and S Balas eds DSSAT v3 Vol 1 3 University of Hawaii Honolulu HI IBSNAT 1989 Decision support system for agrotechnology transfer V 2 1 user s guide Department of Agronomy and Soil Science College of Tropical Agricultural and Human Resources University of Hawaii Honolulu HI IBSNAT 1990 Documentation for IBSNAT crop model input and output files V 2 1 for the decision support system for agrotechnology transfer DSSAT V 2 1 Technical Report 5 Department of Agronomy and Soil Science College of Tropical Agriculture and Human Resources University of Hawaii Honolulu HI Jones J W L A Hunt G Hoogenboom D C Godwin U Singh G Y Tsuji N Pickering P K Thornton W T Bowen K J Boote and J T Ritchie 1994 Input and output files In Tsuji G Y Uehara and S Balas eds DSSAT v3 Vol 2 1 University of Hawaii Honolulu HI e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 223 Genotype Coefficient Calculator Genotype C
238. r This will avoid possible confusion when using the Sequence Analysis program DSSAT v3 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence CHAPTER THREE RUNNING SEQUENCE ANALYSIS EXPERIMENTS O VERVIEW The Sequence Analysis driver program takes the FILEX selected or created by the user and runs through the rotation germ until NYERS have elapsed calling the appropriate crop model The driver is a FORTRAN program that allows the user to pick an entry from EXP LST i e a particular FILEX see Volume 2 1 Jones et al 1994 of this book for a description of the EXP LST file The FILEX is then read and various controls are set Each rotation component specified in the FILEX is then run in its order of appearance in the TREATMENTS block of the FILEX The appropriate model is called for each component the model is run under the command of the driver pro gram and it will be run for as many years as are specified by NYERS and for as many replicates as are specified by NREPS in the FILEX When all runs have been completed the results listing file SEQUENCE LST see the example in Table 3 is updated with the name and description of the summary output file produced The user can then quit the program or choose another FILEX for running under the sequence driver The sequence driver can be run in a stand alone mode or through the DSSAT v3
239. r must change the appropriate path s in the configuration file to match the new location of the programs and or input files This may be accomplished simply by editing the configuration file with TVED EXE or the editor installed in a user s computer Care must be exercised while editing not to change the abbreviations in the linkage field Edit the appro priate path s and once done save the configuration file into the C DSSATS3 direc tory The fourth field contains program or file names it is not present when the row con tains directory information alone The fourth field is the one that would have to be changed if a user wishes to install a replacement crop model Naturally sucha model should conform in other respects to the requirements of GenCalc To install the names of the EXE files for the model in question should be entered in the fourth field of the appropriate row of information Version 3 0 allows for the use of models that consist of separate driver input and simulator components so that the names of all three components must be entered into the appropriate row DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 231 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff together with a symbol that is recognized by the inputs
240. r the destination file The file names and format names are selected using the File List dialog box see Screen 10 or Screen 21 on following page Preview Format The highlighted text shows how WeatherMan will parse the first 50 records in UFGA8001 WTH based on the current format Continue C NDSSAT3NWEATHERNUFGA8001 WTH l Yr Dy SRAD TMAX TMIN RAIN SOOO oy 1 35 0 0 1955 90002 13 9 1722 0 0 ZS oT 0005 13 0 162 cii 0 0 27126 2759 5 4 220 30005 doo IC I 5 0 0 0 27298 30006 14202 12 2 2 0 0 28659 SOOO 19200 20 0 iL 0 0 59 30003 Oo 22495 3 0 0 0 30009 G58 235568 10 6 0 0 11516 4 SCREEN 20 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 167 WeatherMan DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 168 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Files To Import Weather file Format UFGA7601 WTH IBSNAT3 g Add file UFGA7801 WTH IBSNAT3 UFGA7901 WTH IBSNAT3 R UFGA8101 WTH IBSNAT3 Remove file UFGA8201 WTH IBSNAT3 UFGA8401 WTH IBSNAT3 Select format UFGA8601 WTH IBSNAT3 UFGA8001 WTH
241. rMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Time Plot Range s Select Grouping Type Plot Num Stati Time grouping Grouping x X UFGA Monthly summary Range 3 UFGA Montly time series Range 4 UFGA Yearly time series Graph 5 Md Daily time series Graph UFGA Cancel I 1 I SCREEN 37 Screen 33 dialog boxes Choices for Grouping are the same as Screen 32 33 except there is an additional option Daily time series In some of the graph types the Daily time series option is replaced with an data com bined option which pools all the available data together An example of the Select Grouping dialog box is shown in Screen 37 above for a Time plot The RANGE button in Screen 37 selects a global time period for the graph using the Time Period described in Chapter 2 in the section on Common Dialog Boxes In WeatherMan Extreme limits on the time period are given as defaults in year day of year format 1800 001 to 2099 366 because it is impossible to determine all the possible time periods for combinations of plots Only feasible ranges will be plotted The GRAPH button calls the graphics program WMGRAF EXE and plots the data An example of a graph generated by WeatherMan is shown in Screen 38
242. rMan WeatherMan WeatherMan WeatherMan WeatherMan CHAPTER ONE INTRODUCTION Daily weather data are commonly used as input to mathematical models used in water related projects and agriculture While the models expect the data to be complete and reliable raw data from a weather station or even a reliable sec ondary supplier of weather data are often flawed Common data problems include format errors missing data unreasonable values data recorded in differ ent units than needed and data in an inconvenient format Often there are no data available for a specific site or a particular variable is not in the available weather record IBSNAT has focused on the development of crop models and software tools such as the DSSAT to aid research and development in agriculture Available and reli able weather data are essential for good predictions using these crop models The IBSNAT project has specified a minimum daily weather data set and format for use with the crop models In DSSAT v2 1 IBSNAT 1986 the required daily variables were solar radiation MJ m2 d maximum temperature C minimum temperature C and rainfall mm An extended DSSAT v2 1 data set included photosynthetically active radiation PAR mol m2 d DSSAT v3 uses the same minimum weather data set and allows optional variables such as PAR dew point C and wind speed m s For a description of DSSAT v3 file formats see Volume 2 1 Jones et al 1994 of this
243. rMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM days _MN Mean SD Standard deviation _ SK Skewness coefficient _ Kurtosis coefficient PERCENTILES PO Minimum P20 25th percentile P50 Median P5 75th percentile P100 Maximum DISTRIBUTION BINi The relative frequency of observations falling within the ith interval TiME STRUCTURE SDEV Standard deviation LAGi Lag i i 0 5 autocorrelation coefficients PW Probability of a wet day PWW Probability of a wet day following a wet day PDW Probability of a wet day following a dry day PWWW Probability of a wet wet wet sequence PDWW Probability of a dry wet wet sequence PWDW Probability of a wet dry wet sequence PDDW Probability of a dry dry wet sequence DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 196 WeatherMan DSSAT v3 Volume 3 WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan APPENDIX B CLIMATE FILE FORMAT WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan The climate file contains summary information on a site in five sections The CLIMATE section contains characteristics of the location The MONTHLY AVERAGES section contains monthly means and Angstrom coefficients used by the SIMMETEO weather generator The WGEN PARAMETERS section contains the monthly distr
244. rMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan DSSAT v3 Volume 3 APPEN DIX A ABBREVIATION S USED IN W EATHERMAN DAILY W EATHER VARIABLES SRAD Total daily solar radiation TMAX Maximum daily air temperature TMIN Minimum daily air temperature RAIN Total daily precipitation DEWP Dew point temperature or vapor pressure WIND Total daily wind run SUNH Total daily sunshine hours PAR Total daily photosynthetic radiation TWET Wet bulb air temperature at 9 a m EVAP Total daily pan evaporation Summary Files TiME VARIABLES DOC Number of days since January 1 1801 MTH Month 1 January 2 February etc MNO Month number counting from the first month in the data set YR Year of century eg 94 can represent 1994 YRNO Year number counting from the first year in the data set MOMENTS The first character in moment variables represents the weather variable type The second represents wet state The final two represent the type of statistic Total daily solar radiation X _ Maximum dally air temperature Minimum daily air temperature R Total daily precipitation p Total daily photosynthetic radiation D Dry days i e without precipitation _W_ Wet days i e with precipitation DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 195 WeatherMan WeatherMan WeatherMan Weathe
245. rams are placed in the DSSAT3 subdirectory while the crop model input files are placed in subdirectories named after the crop in question Model and crop specific genotype coefficients files XXXYY0 CUL files and the GCRULES FLE are placed in the GENOTYPE subdirectory All could be changed as long as the location of the configuration file DSSATPRO FLE remains the same as that of the program executables e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 207 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 208 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype DSSAT v3 Volume 3 CHAPTER TWO GETTING STARTED GenCalc can be run from the DSSAT v3 Shell or as a stand alone program See Volume 1 3 Hunt et al 1994b of this book for a description of the Shell From the DSSAT v3 Shell open the DATA main menu select Genotype from the menu see Screen 1 below and then select Calculate from the submenu pre sented The first screen of the GenCalc program Screen 3 will be presented
246. rated data CCQU GEN from the list as shown in Screen 10 below When Screen 11 on following page is presented move to the field under Variable in Plot Num 1 and select mean maximum temperature TMAX Mean from the list of available variables in the same way that you selected the station Finally move to the field under Wet State and select DRY Repeat the process for the next 3 plot ranges For Plot Num 2 specify TMAX Mean on WET days Select from List Select Site A CCQU GEN mam 0000 Generated data SCREEN 10 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 154 WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Time Plot Ranges Type Plot Wet Num Station Variable State Grouping 1 X 0000 GEN TMAX MEAN DRY 2 X CCQU GEN TMAX MEAN J Range 3 X cCCQU RAW TMAX MEAN DRY J 4 X CCQU RAW TMAX MEAN WET Graph 5 00 RaW J 6 ccou raw au J Cancel SCREEN 11 for generated data For Plot Num 3 and 4 specify TMAX Mean on DRY days and WET days for raw data After you have specified the four plot ranges the dialog box will look
247. re are three basic steps involved in Sequence Analysis 1 The creation of an appropriate model input file 2 Running the crop model s using the sequence driver 3 Analyzing the results of the simulations using the analysis program The links between these steps are shown in Figure 1 Sequence analyses are run from the DSSAT v3 Shell see Volume 1 3 Hunt et al 1994 of this book for a description of the Shell under the main menu item ANALYSES The three steps are explained in Chapter 2 herein SYSTEM REQUIREMENTS The useable portion of your system s 640 Kb RAM should be at least 540 Kb in size for the models to run and for the analysis program and graphics to work If the driver or analysis program still does not work properly one problem may be DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 70 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence associated with the number of BUFFERS and FILES defined in CONFIG SYS These will need to be set to at least 20 each Replicated sequence simulations on an 8086 or 80286 system may take a great deal of time Sequence Analysis like the rest of DSSAT v3 will operate without a math coprocessor but this is not recommended DSSATPRO FLE DSSATPRO FLE PRICE FILE S PRQ
248. re imported sequentially when the OK button is selected WeatherM DSSAT v3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan s Import Group File Mask Path and file mask ufga wth y SCREEN 22 A group of files with similar names can also be added using the ADD GROUP but ton in Screen 21 This feature is especially useful for importing many one year file of the same format Since a file mask is used to define the group unwanted file names are occasionally inserted in the list but these are easily removed by use of the REMOVE FILE button The Import Group File Mask dialog box used to define the group is shown in Screen 22 above If the Preview formats option is enabled under the Import Options dialog box Screen 24 a Preview Format dialog box Screen 20 will be presented before each file is imported On Import variables that have errors or are suspect are automatically flagged see the section Import Options in this Chapter and Screen 23 to change this set ting The flags used are lower case letters When an original value is filled in its flag is converted to upper case The flags and their meaning are listed in Table 5 At the end of the Import process a summary report is given indicating the quantity and quality of data in the raw archive file An exampl
249. rectory Seasonal Analysis Seas DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 48 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis TABLE 9 PART OF SEASONAL ANALYSIS RESULTS Fie UFGA7812 SNR SN ANALYSIS LOG UFGA7812SN GAINESVILLE FLORIDA SB IRRIGATION EXPERIMENT Date 20 Apr 1994 Time 11 48 18 Input file C DSSAT3 SEASONAL UFGA7812 SNS BIOLOGICAL VARIABLES Calculated Values Variable HAR YIELD kg ha treatment field crop mean st dev 1 BAINFED ee UFGA0001 SB 3134 90 443 91 2 AUTOMATIC 90 UFGA0001 SB 3529 20 144 06 3 AUTOMATIC 70 UFGA0001 SB 3528 30 145 71 4 AUTOMATIC 50 0001 SB 3539 75 122 89 5 AUTOMATIC 30 UFGA0001 SB 3506 15 109 92 6 AUTOMATIC 10 UFGA0001 SB 3228 00 286 99 percentiles treat Oth 10th 25th 50th 75th 90th 100th 1 1798 0 2755 9 2941 3 3233 5 3425 5 3525 4 3602 0 2 3219 0 3338 5 3468 0 3548 5 3632 5 3696 7 3761 0 3 3219 0 3336 9 3461 5 3543 0 3637 0 3695 9 3761 0 4 3249 0 3407 5 3482 8 352749 3629 5 3694 5 3759 0 5 3241 0 3431 2 3460 8 3481 0 3542 8 3679 2 3725 0 6 2530 0 2892 3 3047 8 3304 0 3430 5 3525 4 3602 0 BIOLOGICAL VARIABLES Calculated Values Variable IRRIG APPS
250. rminate a WeatherMan session using QUIT from the main menu or selecting the option Exit under the FILE menu SYSTEM REQUIREMENTS WeatherMan is designed to run on an IBM compatible PC with DOS v3 1 or later and with at least 280 kB of available conventional RAM to work with 5 weather variables Each additional variable requires about 12 kB of additional RAM WeatherMan will store its overlay in expanded memory if it is available It will be slower without expanded memory and require more conventional memory We recommend at least 300 kB of available expanded memory when running WeatherMan While a math co processor is not required it is recommended A hard disk is recommended Archive weather data occupies about 14 kB of disk space per year for five variables Standard video drivers are detected automati cally Graphs can be output to several printers plotters and file formats DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 140 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan CHAPTER TW O GETTING STARTED STARTING W EATHERM AN WeatherMan can be run either from the DSSAT v3 Shell or as a stand alone pro gram From the DSSAT v3 Shell call the WeatherMan by using the cursor keys to select the DATA main menu item and then the submenu items Weather and
251. s by crop component or for total returns all components 500 0 BOX PLOT OF MONETARY RETURNS PER HA ALL ALL 400 0 300 0 100 0 MONEY HA 100 0 1916 YEAR ALL YRS SCREEN 29 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence DSSAT Version 3 0 Crop Sequencing Analysis m Main Menu Economic Evaluation j Plot Menu Probability Analysis Returns MZ1 Returns 1 Total returns Ex Review results lile EBAF1101 PRQ s in analysis analysis Exit economic analysis Fl Help 71440 Mem SCREEN 30 together Select the Total returns option You are then asked to enter a critical return ha in Screen 31 below This might be a threshold value of returns that the sequence is required to generate In some situations the probability of DSSAT Version 3 0 Crop Sequencing Analysis r Main Menu r Economic Evaluation 4 Plot Menu ile EBAF1101 PRQ q Probability Analysis iy analysis
252. s selections using the lt 5 gt lt gt keys in data entry dialog next data column previous data column icon to close dialog box or window alter o using the ESC key or CANCEL button dt it e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 143 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM Where the dialog box displays a Down Arrow 2 symbol it is important to dis tinguish between the TAB and Down Arrow keys The TAB and lt SHIFT gt TAB keys are used for moving around the dialog box without the mouse while the Down Arrow key activates a history list of previous choices or a list of available choices An example of a history list is given in Screen 2 below for the choice of a weather input file name The previously selected file names are shown in the history list as UFGA7601 WTH UFGA7801 WTH and UFGA7901 WTH A file is selected by pressing the ENTER key with the name highlighted Use of history lists helps speed up the selection process and avoid typing errors COMMON DIALOG BOXES A list dialog box is presented when you wish to select a weather station select a file for import or export select a file format or select a file to edit or invert An example of this type of dialog
253. se colors to remain in effect in subsequent WeatherMan sessions following the description on how to do this in the above section Display mode The Colors dialog box is shown in Screen 41 above DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 188 WeatherMan WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan Directories X Obtain directories from DSSATPRO FLE Weather data C DSSAT3 WEATHER Climate files C DSSAT3 WEATHER CLIMATE Graphics program C DSSAT3 Graphic output C DSSAT3 WEATHER Editor path amp file C DOS EDIT COM Editor command line SCREEN 42 DIRECTORIES When the Directories option in Screen 39 is selected the Directories dialog box shown in Screen 42 above is presented This dialog box permits you to change the default directories and editor All the information listed in Screen 42 can also be obtained from the DSSAT v3 profile file called DSSATPRO FLE see Volume 1 3 Hunt et al 1994 of this book for a description of this file When the Obtain directories from DSSATPRO FLE box in Screen 42 is checked directories that conflict with those in DSSATPRO FLE are disregarded This box should generally be checked only when runn
254. sed Such communication will help both with development of the GenCalc software and with further enhancement of the crop models DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 221 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 222 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype REFERENCES Hunt L A 1988 IBSNAT s genetic coefficients coping with germplasm diversi ty Agrotechnology Transfer No 7 p 1 5 Hunt L A and 5 Pararajasingham 1993 GenCalc Genotype coefficient calcula tor user s guide version 2 0 Crop Science Publication No LAH 01 93 University of Guelph Hunt L A S Pararajasingham J W Jones Hoogenboom D T Imamura R M Ogoshi 1993 GENCALC Software to facilitate the use of crop models for analyzing field experiments Agron J 85 1090 1094 Hunt L A J W Jones G Hoogenboom D C Godwin U Singh N Pickering P K Thornton K J Boote and J T Ritchie 1994a General input and output file structures for crop simulation models Uhlir and Carte
255. ser can access this file and use the data contained within in any way required For example it could be edited for importing into a graphics spreadsheet or statistics program DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 89 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis QUIT BIOPHYSICAL ECONOMIC SELECT MODEL SELECT GRAPHICS ANALYSIS ANAYLSIS OUTPUT FILE HARDCOPY OPTIONS I SELECT 1 35 ACCESS A INCLUDE OR EDITA CALCULATE ECON OUTPUT VARIABLES PRICE FILE EXCLUDE FALLOWS PRICE FILE OMIC RETURNS SELECT CROP CODES TABULATE SUMMARY STATISTICS SELECT ANALYSIS METHOD PLOT GRAPHS PERFORM PROBABILITY ANALYSIS CALCULATE amp TABULATE SUMMARY STATISTICS PLOT GRAPHS PERFORM REGRESSIONS PLOT REGRESSIONS AND RESIDUALS FiGuRE 2 MENU OPTIONS FOR THE SEQUENCE ANALYSIS PROGRAM AN EXAMPLE The analysis program is called from the ANALYSES main menu item of the DSSAT v3 Shell and then the Sequence Analyze submenus Screen 3 on following page After an introductory screen the main menu screen Screen 4 on following page is presented First you must select a sequence output file to analyze i e a summary output file from a previously run simulation On selecting this item the program searches SEQU
256. shell program GenCalc EXE to locate directories where necessary programs and or files are stored together with the names of programs required by GenCalc The configura tion file has three or four fields of information The first field holds letter abbrevia tions or keys that allow the shell program to identify the appropriate row of infor mation Abbreviations related to crop models in this field have an Model fol lowed by the standard two letter abbreviation of the crop for which a simulation model is available in GenCalc Abbreviations related to data input files for a par ticular crop model have the letter D Data preceded by the standard abbreviation for the crop concerned In addition to the above the paths for the rules file GCRULES FLE and the text editor IVED EXE shipped with DSSAT v3 or editor of choice are also specified in the configuration file The 3 letter key for the rules file is CRD CRop Data while that for the editor is TOE TOol for Editing The second field in the configuration file contains the drive in which the informa tion is located e g C while the third field consists of the complete path for the program or file required while running GenCalc The paths shown in Table 5 are for the programs and files included on the distribution diskette they could be changed if a user wishes to store the model programs and model input files in directories of his her choice In such a case the use
257. sonal Analysis Seasonal Analysis Seasonal Analysis E V PLOT OF HAR YIELD kg ha 600k 500k w 400k MEAN 300k 200k 1 0 0k 30 0k 60 0k 90 0k 120 0k 150 0k 180 0k 210 0k VARIANCE H HWAH SCREEN 14 The y axis for such a plot is always scaled automatically and care will sometimes be needed in interpretation as the difference between the means i e the differ ence from the top to the bottom of the scale may not be very much and will sometimes be much less than appears from a cursory glance at the graph To print the plot press the lt P gt key or press the ENTER key to return to the Graphics main menu Screen 10 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 3 2 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas NOTE To calculate statistics for all variables in the summary output file select all the variables from the variable menu Screen 8 with the lt gt key This will result in means standard deviations maxima and minima being calculated for all 35 output variables Results will be written to the results file not the screen If you wan
258. ssed by pressing the F1 key from the About dialog box presented when About is selected The Exit option allows you to exit the Weatherman program You may also exit by pressing the lt ALT gt lt X gt keys STATION MENU The STATION menu allows you to select a weather station and get general and climate information for the station Most operations in WeatherMan require the selection of a weather station name Two permanent files located in the climate directory are identified by the station name A climate file CLI contains descriptive information about the site monthly weather generator coefficients range check values and counts of valid and flagged data The format of the cli mate files is given in Appendix B The station name also identifies an archive file WTD that has a standard format and set of units this is required by most of the functions in WeatherMan e g data checking data fill weather generators statis tics graphics The archive file is also used for storage of imported data If the user only wants to convert data file formats or change units of the variables using the Convert option under the IMPORT EXPORT main menu item then a per manent archive file is not retained The STATION pull down menu window is displayed in Screen 14 on following page In Screen 14 after a weather station has been selected the 4 letter station ID code is displayed on the first line of the menu windo
259. station s latitude is absolutely essential STATION INFORMATION When the Edit station information option is selected in Screen 14 the Station Data dialog box see Screen 15 on second following page for entering additional data or editing existing data is presented MEANS When a new station is selected a user may select the Edit monthly means option in order to enter the monthly means of the weather variables for this sta tion An example of a Monthly Means and Rainfall data entry dialog box is given in Screen 16 on second following page Although you do not need to enter the monthly means of the variables listed in Screen 16 many of the options for generating data filling in missing data during DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 161 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM TABLE 4 WEATHER SrATION INFORMATION REQUIRED FOR A NEW STATION Latitude degrees Station latitude N 5 Longitude degrees Station longitude E W Elevation m Station elevation above mean sea level Angstrom coefficient A Coefficient in equation SRAD A B n N Rp where Rk is extraterrestrial radia tion and n is duration of bright sunshine and N is daylength Angstrom coefficient B Coefficient B in
260. still does not work properly one problem may be associated with the number of BUFFERS and FILES defined in CONFIG SYS These will need to be set to at least 20 each Replicated seasonal simulations on an 8086 or 80286 system may take a great deal of time In such cases the number of replicates should be kept to a minimum Seasonal analysis like the rest of the DSSAT3 will operate without a math coprocessor but this is not recommended DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 4 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis CHAPTER TWO CREATING MODEL INPUT FILES FOR SEASONAL ANALYSIS The program XCreate see Volume 1 4 Imamura 1994 of this book for a descrip tion of this program can be used to create model input files FILEXs for running seasonal analyses For a description of FILEX see Volume 2 1 Jones et al 1994 of this book Alternatively these files can be created using an ASCII text editor The advantage of using the program XCreate is that the experiment listing file EXP LST is updated automatically see Volume 2 1 Jones et al 1994 of this book for a description of EXP LST If you create a seasonal analysis FILEX yourself using an ASCII editor then you must either
261. t to see results and or graphs on the screen choose individual variables to analyze one by Before quitting the Analysis program you are given the option to print the results file if you require ANALYZE ECONOMIC VARIABLES Choosing the main menu option Analyze Economic Variables in Screen 5 allows the analysis of the treatments in economic terms When this option is selected the Economic Evaluation main menu Screen 15 on following page is presented There are three major options in Screen 15 described as follows ECONOMIC EVALUATION MAIN MENU 1 Access A PRICE FILE Before economic evaluation can be undertaken the program must have access to a price cost file that details the costs and prices to be used for the analysis The program will try to read an appropriate price cost file by itself without input from the user but other options are also available When Access price file is selected from Screen 15 Screen 16 on following page is presented the price file options available from this screen are described below Tied Price Cost Files Use a price file with extension PRI that is tied to the experiment FILEX in this example file UFGA7812 PRI This file option might be used when you have a complicated experi ment and you wish to preserve the prices and costs that pertain to the experiment Default Price Cost File A default price file distributed with DSSAT v3 called DEFAULT PRI can be used T
262. t treatments are members of the FSD SSD efficient set To put it another way EV efficient sets tend to be larger than FSD SSD efficient sets which in turn tend to be larger than MG effi cient sets One more point to bear in mind is that for comparison purposes calculations are made and the analysis is carried out on a per hectare basis While making for simplicity this implies even more about the particular nature of the decision mak er s attitudes and preferences but is often forgotten or ignored Strictly speaking these types of decision analysis relate to gains and losses of money in relation to total wealth For further details consult Raiffa 1968 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 64 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis CPR PLOT OF MONETARY RETURNS PER HA 19000 I ILIIIIIIIII I III IIIIIIIIIII I 0 800 z H y H 4 0 600 5 m lt 4 uh g TRT2 Bi L I 4 m gt 4 gt L 5 H 0 400 5 o L 4 n L
263. ted with any value of cumulative probability can be calculated The distribution vector containing the values of gross margin or net return per hectare which is then of length 5 n where n is the number of replicates is sorted and collapsed to length n by linear interpolation Each algebraic operation on the distributions is done separately for each stochas tic price or cost The final distribution of returns per hectare will contain the same number of members as there were yields in the original yield distribution i e number of replicates One point to bear in mind is that the method of combining distributions is not exact but an approximation You may find that the mean of the distribution of returns per hectare derived using one or more stochastic price or cost will be 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 57 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas somewhat different from the mean when all prices and costs are fixed This is to be expected but the differences should not be large and ranking of treatments should not be greatly affected AN ILLUSTRATION 5 1 Order the 7 member simulated yield distribution from smallest to largest yield Y t ha 0 90 1 60 1 90 2 10
264. the WeatherMan main menu allows you to change and save options and defaults The OPTIONS menu is shown in Screen 39 on following page and its options are described as follows NOTE Unless the Update options option is selected first the menu options listed in Screen 38 are only for the WeatherMan session you are currently working in DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 186 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan File Station Import Export Generate Analyze Options Quit 14 50 09 Display mode Colors Directories Temporary files Graph colors Graph output Update options SCREEN 39 DisPLAY MODE When the Display mode option is selected the Video Mode dialog box shown in Screen 40 below is presented The Video mode window in Screen 40 is best left on Autodetect unless the program has difficulty selecting the correct mode and a manual choice of an alter r 11 Video Mode Video mode Autodetect mode Color palette Black White palette Monochrome palette Custom palette SCREEN 40 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3
265. the program will calculate the mean standard deviation maximum and minimum value of net return or gross margin per hectare for each sequence year using the costs and prices specified The first set of results are for total returns Screen 27 on following page including all the crop components in the sequence or excluding fallows if you have selected this option Once these results have been tabulated you may want to view the returns arising from each separate crop component If so select Yes at this point to be presented with tables of returns by crop component DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 143 0 Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis DSSAT Version 3 0 Crop Sequencing Analysis Total Return per Hectare Mean St Dev Min Max Year 1911 230 04 84 66 102 55 430 76 Year 1912 41 77 73 82 62 64 228 98 Year 1913 85 28 92 87 65 55 229 98 Year 1914 65 05 114 94 95 57 320 76 Year 1915 56 40 95 37 103 03 226 15 Year 1916 74 49 100 17 99 50 246 28 Year 1917 24 89 101 02 113 56 223 78 Year 1918 18 40 89 13 105 71 251 42 Year 1919 47 88 109 34 73 25 313 52 Year 1920 73 33 95 61 103 87 293 66 1 Help Press key to continue 71440 Mem SCREEN 27 You then have th
266. the treatment number The model should use a genotype coefficient file or cultivar file that is named in accord with the EXE file name but that has a zero 0 in position 8 and an extension CUL The format of this file should accord with the standards laid down by Hunt et al 1993 and in Volume 2 1 Jones et al 1994 of this book In this standard each line begins with 6 spaces for a cultivar identification code the first two items should be the code for the Institute that assigned the num DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 or Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype ber a blank 17 spaces for the cultivar name a blank 5 spaces for a type identifier e g an identifier for highland or lowland bean ecotypes and then data in a 1X F5 format i e 1 blank followed 5 spaces for a real vari able with the required number of decimals An example of a Cultivar file is shown in Table 2 The model should produce an output file that is named OVERVIEW OUT and that contains a list of simulated and measured values of key variables This file could contain additional information but the structure and heading of this list which could appear early or late in the file should be as shown in Table 3 The model should use standard fi
267. then Utilities Alternatively WeatherMan can be called by typing WM from the DSSAT3 directory or from any directory if DSSAT3 is identified in the DOS PATH variable The opening screen of the WeatherMan has a main menu on the top line a blank desktop in the center and a status line on the bottom An example of the startup screen appearance is given in Screen 1 below W EATHERM AN USER INTERFACE The WeatherMan interface is written in Borland Pascal s Turbo Vision and gener ally follows the Microsoft Windows protocols A mouse or a few standard key strokes are used to access WeatherMan s features Table 1 File Station Import Export Generate Analyze Options Quit 12 35 59 Fl Help F10 Menu Stn SCREEN 1 e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 141 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherM TABLE 1 USER INTERFACE ITEMS AND THEIR FUNCTIONS IN WEATHERMAN Item Function Main menu Accessed with the ALT hotkey sequence e g lt ALT gt lt F gt accesses the FILE main menu item Or press the F10 key to select the menu and use the cursor keys Menu item Press the hotkey letter or highlight the item using cursor keys and use the ENTER key or left mouse button Menu it
268. ting file that contains the available model summary out put files in the current directory see Table 3 These are presented to the user see Screen 6 on following page Note that the entries in SEASONAL LST do not DECISION SUPPORT SYSTEM FOR AGROTECHNOLOGY TRANSFER DATA MODEL ANALYSES TOOLS SETUP QUIT S Seasonal C Create I Inputs S Simulate O Outputs A Analyze None Analyze model outputs moves through menu choices ESC moves to higher menu level Version 3 0 SCREEN 4 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 24 isAnalysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis DSSAT Version 3 0 Cropping Season Analysis Tool Main Menu Select a cropping season file for analysis Analyse Biophysical variables Analyse Economic variables Modify hardopy options About VARAN2 Exit F1 Help 214240 Mem SCREEN 5 have to match the entries in EXP LST either in number or in order you may have run and analyzed the experiments in a different order for exam ple As for the driver program if the colors on the screen are difficult to see such as when the program is being run on a mon
269. tions are set to N to pre vent output from the models Since sequence simulations with many replicates can produce prodigious quantities of output data it makes sense to turn these output files off unless you need them specifically Although setting up sequence FILEXs may seem complicated it is rather flexible The distribution diskette of the Sequence Analysis program contains two other sequence FILEXs that illustrate some of this flexibility UFGA7803 SQX contains a simple multi ple treatment experiment Treatment 1 involves soybean and fallow and Treatment 2 bean and fallow Pay special attention to the values of N and R in the TREATMENTS section of this file Another FILEX that is distributed with the DSSAT v3 software is UFGA7804 SQX This is a more complicated rotation involving two bean crops in one season followed by soybean in the next The rotation germ is thus specified as BN1 FA1 BN2 FA2 5 1 spanning two seasons Each fallow is distinct and must be so treated in the analysis see Chapter 4 herein You may specify rotations with up to 9 distinct components The sequence driver will operate even if no fallows are specified between each crop component However you are highly recommended to specify fallows between each crop component It is also generally a good idea to make the sequence length exactly divisible by the germ length thus if your germ describes a four year rotation set NYERS to a multiple of fou
270. tor Genotype Coefficient Calculator Genotype APPENDIX C ABBREVIATIONS Abbreviations used GenCalc coefficient COEFF TMP files Abbreviation Definition No data available for comparison Coefficient at maximum or minimum value No response to changes in coefficient Run number at a maximum Coefficient not determined not called for in rules file e DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 233 Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coefficient Calculator Genotype Coeff DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 234 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT 235 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 236 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT 234 NOTES DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 238 NOTES DSS
271. tput in terms of the calculated constant or intercept the slope or gradient the quantity 2 the standard error of the gradient and a t test that tests the hypothesis that the gradient is significantly different from 0 The meaning of these outputs is as follows from Snedecor and Cochran 1980 The program performs a simple least squares regression and fits the following line to the data points 6 where y is the output variable under consideration here yield m is the slope or gradient x is the year number and c is a constant the y axis intercept or the value of y when x equals zero The quantity 2 can be interpreted as the estimat ed proportion of the variance of y that can be attributed to its linear regression on x The hypothesis that the gradient is significantly different from zero i e a DSSAT Version 3 0 Crop Sequencing Analysis Regression of Means Variable HAR YIELD kg ha Crop Code s 21 Type Linear Constant 66358 4100 Gradient 34 0009 R squared 6039 Standard error of gradient T test of gradient significant at p IRRIG APPS IRRIG mm PRECIP mm ET TOTAL mm RUNOFF mm 14 F1 Help 71440 ScREEN 18 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 104 equence Analysis Sequence Analysis
272. traterrestrial radiation Updated ranges are saved to the weather station cli mate file The DEFAULTS button restores the default values Edit Check Ranges Variable Minimum Maximum MaxRate SRAD 5 0 85 0 70 0 TMAX DS 40 0 20 0 TMIN 20 0 30 0 20 0 RAIN 0 0 600 0 500 0 DEWP 0 0 25 0 5 0 WIND 0 0 500 0 300 0 SUNH 0 0 100 0 90 0 PAR MO 85 0 70 0 TDRY 0 0 35 0 20 0 WET 0 0 25 0 20 0 EVAP 0 0 15 0 15 0 Radiation of extraterrestrial OK Defaults 1 SCREEN 25 Lx WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan EXPORT The Export option in Screen 17 can be used to export a single file or a set of yearly files The Export single file option uses the Archive Type dialog box Screen 4 if the raw archive file is not the only type Time Period dialog box Screen 5 and the File List dialog box Screen 2 to select an export file name and format The Export yearly file option uses the same dialog boxes but the file export names are built automatically based on the DSSAT v2 1 or DSSAT v3 file naming conventions The files can easily be renamed using the DOS RENAME command Access to the Edit Format dialog box is from the Format File dialog box During Import errors or suspect values in the raw archive file are marked
273. ts and prices can be negative or positive this might apply particularly to harvest byproduct where a negative income is posited i e it costs the farmer money to remove the byproduct straw or stover for example Any monetary units can be used so can be thought of as money in general rather than dollars Economic evaluation of the treatments can take account of price and cost variability Details on how this is done within the program are given in Appendix A Seasonal analysis price files as shown in Table 5 contain 5 lines per section a header line a line containing the distribution type for each of the 11 prices and costs and three lines of parameters describing the distributions i e PART PAR2 PAR3 Distribution types are described by the variable IDIS and can have the following val ues 0 Ignored the variable is not used in the analysis 0 Fixed a deterministic or nonvariable price or cost is used 1 Uniform U a b a lower b upper bound third parameter ignored 2 Triangular T a b c a lower b mode c upper bound 3 Normal N x s x mean s standard deviation third parameter ignored DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 V 36 is Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Se
274. ttle meaning here but it is useful for understanding the differences in the analysis options DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 Sequence DSSAT v3 Volume 111 Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis The analysis program thus has the flexibility to analyze different combinations of rotation components Again you should be careful in interpreting the results as they may not always be meaningful or useful ANALYZE ECONOMIC VARIABLES Option 2 Analyze Economic Variables in the Sequence Analysis main menu Screen 4 allows the analysis of the sequence in economic terms On choosing this option the Economic Evaluation main menu appears Screen 25 on follow ing page There are four major options described below ECONOMIC EVALUATION MAIN MENU OPriION 1 ACCESS A PRICE FILE Before economic evaluation can be undertaken the program must have access to a price cost file that details the costs and prices to be used for the analysis The program will try to read an appropriate price cost file by itself but various options are open to the user Select this option to get to the next menu Screen 26 on following page Tied Price Cost Files Use a price file extension PRO that is tied or directly related to the experiment FILEX in the example
275. ume 3 DSSAT v3 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence DSSAT Version 3 0 Crop Sequencing Analysis Trends Over Time Variable HAR YIELD kg ha Crop Code s 21 Sequence Mean St Dev 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 2223 1087 1401 1242 1206 1323 971 913 1107 406 394 559 674 587 614 621 500 632 539 O O O O O FF O N N O C C C C C C C C C S C C C C C C C C N O HP O O 17 ET TOTAL mm 18 RUNOFF mm TL Fl Help Press any key to see more 71440 Mem SCREEN 9 The next screen Screen 9 above shows the results of the calculations by the program The screen is headed Trends Over Time as the trends in maize yields may well be what we are interested in The output variable is shown yield per hectare together with the pertinent crop code maize For each appearance of the chosen crop component the program displays the mean stan dard deviation and minimum and maximum values of the selected variable In the example maize was grown each season so an annual yield is displayed for the years 1911 to 1940 remember the year numbers are purely for convenience in this example The experiment was replicated
276. under NYERS one of the GEN ERAL options found in this section In Table 2 NYERS is 30 so the rotation will be continued for 30 years This example FILEX specifies that maize is to be planted on day 305 from PDATE in the PLANTING DETAILS section of the file note that PLANT under MAN AGEMENT options in the SIMULATION CONTROLS block 1 i e N 1 is set to R for recorded in each year of simulation Once the maize is mature the fallow model will be run until the maize model is called for planting in the next year This FILEX also specifies that there are to be 15 replicates of this sequence refer to NREPS under GENERAL options in SIMULATION CONTROLS block 1 Weather for the site EBAF is to be simulated using WGEN refer to WTHER under the METHOD options in SIMULATION CONTROLS block 1 this is set to W You will notice that there are two simulation control blocks in this FILEX In gen eral it is highly recommended that you specify as many simulation control blocks as there are rotation components So if you specify 7 rotation components it is safest to specify 7 simulation control blocks For sequence experiments you should note that the values of NYERS NREPS START YRDAY RSEED all the OPTIONS variables WTHER and all the OUT PUTS variables are taken from the SIMULATION CONTROLS block with the lowest VALID number The values of these variables in any other SIMULATION CONTROLS block are ignored Thus in
277. units and conversion factors are contained in an external file WM VAR Please contact the authors if you want to modify the list of variables The VIEW FILE button provides a file viewer to facilitate the choice of the position and length of the variables in the data file see Screen 19 below The SAVE FORMAT button provides access to a File List dialog box so that a new or modified format can be saved to a file for subsequent use The OK button will accept any format changes for the current IMPORT EXPORT session but will not save them to a file so when you quit the operation any changes you have made to the format will be lost File Station Import Export Generate Analyze Options Quit 09 42 09 Edit File Format Header output option Format name IBSNAT3 A None IBSNAT v 3 Date First Position Length IBSNAT 2 Year 1900 1 2 Variable names Month 1 0 0 From header file Day 1 3 3 header lines 4 Variable Units Pos Len Variable Units Pos Len 1 SRAD fM wx 7 5 7 0 0 2 C 13 5 8 0 0 3 TMIN 9C 19 5 9 0 0 4 RAIN mm 25 5 10 Y 0 0 5 0 0 11 Y 0 0 6 0 0 12 i 0 0 v C DSSAT3 WEATHER UFGA8001 WTH T 4 4 5 3 WEATHER GAINESVILLE FLORIDA USA INSI LAT LONG ELEV TAV AMP REFHT WNDHT UFGA 29 630 82 370 10 20 9 7 5 2 00 3 00 _ _ _ Fl Help F10 Menu Stn UFGA SCREEN 19
278. ur printer by pressing the P key while the graph is on the screen If the graph does not plot you may need to change hard copy settings refer to the section below Graphics Hardcopy Setup Depending on the printer and the resolution used there may be a delay of a few seconds while this is done wait for the graph to show on the screen again before continuing NOTE To return to the Analysis program from any graph press any key OPnoN 2 CUMULATIVE FUNCTION PLOT When this option is selected in Screen 10 output variables by treatment are plot 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 29 Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seasonal Analysis Seas BOX PLOT OF HAR YIELD kg ha 4 200k Exe LL I IL LT LL I LL I 3 600k L al x J 3 000k T E lt E a 8 El L _ gt 2 400k m 1 800k LL LL Lat al LL II LL LL I LI I 0 2 3 4 5 6 TREATMENT HWAH SCREEN 11 ted as cumulative function plots Cumulative function plots are sometimes called cumulative probability function CPF plots or cumulative distribution function plots these are the same Here the out
279. w and also on the status line at the bottom of the screen The example station ID code is UFGA in Screen 14 The menu options in the STATION menu are described as follows SELECT STATION The Select station option shown in Screen 14 displays a list of all climate CLI files in the climate directory This dialog box uses the File List dialog box but DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 160 WeatherMan DSSAT v3 Volume 3 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan File Station Import Export Generate Analyze Options Quit 12 16 49 Select station UFGA Edit station information Edit monthly means Calculate monthly means Fl Help Stn UFGA Select or input a weather station ID SCREEN 14 only allows a 4 letter station name Selecting the OPTIONS main menu item and then the Update option after selecting the station from this menu places the selected station name in the program s configuration file and automatically loads it the next time WeatherMan is started Whenever a new weather station is selected the user is requested to input general information regarding the new station These data items are listed in Table 4 along with an explanation of each item Please note that the
280. ween treatments b between replicates c within sequences i e between different years of the various sequence replicates As for replicated computer experiments run over single seasons the only sources of error that exist are model error and input data error ultimately as opposed to field experiments where errors arise from measurement micro variations in soil and climate and the rest This pure replication can be difficult to analyze and inter pret in the case of cropping sequences The driver program is capable of running up to 10 treatments or sequences The analysis program however is capable of analyzing only one treatment at a time Thus no direct treatment comparisons are possible using the analysis program The major reason for this is to help foster healthy skepticism of sequence simula tion results At the current time the sequence capabilities of the IBSNAT crop models have not been extensively tested It is envisaged that most users of the sequence capability of the models will be interested in addressing what if questions related to agricultural system performance However analysis results of multiple treatment sequence experiments are written to an ASCII file and you can analyze these in any way you see fit outside the confines of DSSAT v3 You could for example compare and contrast different sequence strategies directly although you should exercise care in interpreting the results you obtain The
281. wing references contain more details on strategy analysis Anderson J J L Dillon and J B Hardaker 1977 Agricultural Decision Analysis Iowa State University Press Buccola S T and A Subaei 1984 Mean Gini analysis stochastic efficiency and weak risk aversion Australian Journal of Agricultural Economics 28 77 86 Fawcett R H and P K Thornton 1990 Mean Gini dominance in decision analy sis IMA Journal of Mathematics Applied in Business and Industry 6 309 317 Halter A N and G W Dean 1971 Decisions under uncertainty with research applications South Western Publishing Company Cincinnati OH Raiffa H 1968 Decision Analysis Addison Wesley Reading MA The Seasonal Analysis program is outlined in the following Thornton P K and G Hoogenboom 1994 A computer program to analyze sin gle season crop model outputs Agronomy Journal in press Details on FILEX creation and editing may be found in Imamura D T 1994 Creating management files to run crop models amp document experiments In Tsuji G Y Uehara and S Balas eds DSSAT v3 Vol 1 4 University of Hawaii Honolulu HI Other References Geng 5 J S Auburn E Brandsetter and B Li 1988 A program to simulate meterological variables Documentation for SIMMETEO Agronomy Progress Report No 204 Dept of Agronomy and Range Sci Univ of California Davis CA 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3
282. x is shown in Screen 25 on second following page Import Statistics Records in UFGA WTD TOTAL SRAD TMAX TMIN RAIN PAR TOTAL 43380 8676 8676 8676 8676 8676 VALID 43089 8670 8673 5 8676 8395 ISSING ATT 0 0 0 0 277 ERROR 0 0 0 0 0 0 1 0 0 0 0 1 BELOW 12 6 3 0 0 3 RATE 1 0 0 1 0 0 SCREEN 23 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 170 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan TABLE 6 EXPLANATION OF IMPORT OPTIONS Option Format name Check ranges Overwrite existing data Prompt for non numerics Preview formats Explanation The default action is to prompt for a format name If the only file formats used are the DSSAT v2 1 or DSSAT v3 formats the format name can be fixed as IBSNAT v2 or IBSNAT v3 respectively The default is to perform range checking The vari ables are checked for extreme values and the unal tered values are inserted in the raw data archive file and marked with a flag see Edit Range Checks below Import operations can speeded up without range checking and it can be performed later on the whole archive file using an option in the Analyze menu If this option is enabled when th xisting and new data both have
283. y through the SUM file dis played in Screen 34 If the PRINT button in Screen 34 is pressed the SUM file displayed in the window is printed to the parallel printer port The OK button displays the next file while the CANCEL button aborts the viewing process TABLE 9 EXPLANATION OF STATISTICS TIME GROUPINGS Grouping Explanation All data combined Pools all data together computed automatically with monthly summary Monthly summary Pools all the data from each month together eg all of January s all of February s etc Monthly time series Each month analyzed separately Yearly time series Each year analyzed separately DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 182 WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan WeatherMan DSSAT v3 Volume 3 File Station Import Export Generate Analyze Options Quit Summary File UFGA AMA SUM Monthly summary moments for station UFGA observed data a SRADDRY 8 MTH SDMN SDSD 305 SDKT l 11 9 2 9 9 0 3 2 14 8 3 7 9 0 3 3 18 8 4 1 0 8 0 0 4 7 3 8 1 6 5 23 4 3 8 41 1 2 6 22 4 3 6 0 8 0 3 7 22 0 3 4 9 1 0 8 20 3 2 9 8 0 6 8 17 7 3 3 1 0 0 8 10 15 4 3 4 9 0 7 v pK Fl Help Stn UFGA Use cursor keys or mouse to scroll lt Esc gt or icon to quit
284. yproduct straw or stover for example Any monetary units can be used so can be thought of as money in general rather than dol lars Economic evaluation of the sequence can take account of price and cost variability Details on how this is done within the program are given in Appendix A to Part 1 Seasonal Analysis of this Volume Sequence analysis price files as shown in Table 5 can contain many lines per sec tion a header line a line containing a value that is used for generating stochastic values and a time series of values Stochastic generation of values is controlled as follows 0 Fixed a deterministic or non variable price or cost is used gt 1 Anormal variate is assumed from the distribution N x s where x is the mean value that appears in the time series and s is the standard deviation The value stored in the file is the standard deviation expressed as a percentage of the mean i e the coefficient of variation DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 Volume 3 DSSAT v3 114 equence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence Analysis Sequence TABLE 5 PRIC Line MZ YRDOY 97800 97900 98000 98100 98200 98300 98500 98600 98700 98800 98900 99000 99100 99200 99300 99400 99500 SG YRDOY 197800 197900

DSSAT User's Guide Vol. 3 - Projetos e Redes do Macroprograma 1

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