How to calculate the missing values in SBuild tool

[JongChao]

How to calculate the missing values in SBuild tool

[lpmorenoc]

Hi @JongChao, I recommend reading the following papers, which can give some details on some of the pedotransfer functions that DSSAT uses based on the available soil variables (e.g., Table 1 of Gijsman et al., 2002). Because this is a question about the model use more than the code, next time, you can submit your question in the following link https://dssat.net/contact-us/

Baumer, O.W., and Rice, J.W. 1988. Methods to predict soil input data for DRAINMOD. ASAE Paper No. 88-2564.

Ritchie,.J.T., Godwin, D.C., Singh, U. 1989. Soil and Water inputs for IBSNAT crop models. In DSSAT. IBSNAT Symposium. Part I. Las Vegas, Nevada. Pp.31-47

Rawls, W.J., and Brakensiek, D.L. 1985. Prediction of soil water properties for hydrologic modeling. In: Jones, E.B. and Ward, T.J. (Eds.), Proc. Symp. Watershed Management in the Eighties. April 30-May 1, 1985, Denver, CO. Am. Soc. Civil Eng., New York, NY. pp.293-299.

Rawls, W.J., Brakensiek, D.L., and Saxton, K.E. 1982. Estimation of soil water properties. Transactions of the ASAE 25, 1316-1328.

Saxton, K.E., Rawls, W.J., Romberger, J.S., and Papendick, R.I. 1986. Estimating generalized soil-water characteristics from texture. Soil Sci. Soc. Am. J. 50, 1031-1036.

Gijsman, A.J., Jagtap, S.S., Jones, J.W. Wading through a swamp of complete confusion: how to choose a method for estimating soil water retention parameters for crop models. Europ. J.Agronomy 18(2002) 75-105

Gijsman, A.J., P.K. Thornton, and G. Hoogenboom. 2007. Using the WISE database to parameterize soil inputs for crop simulation models. Computers and Electronics in Agriculture 56:85-100.

Gijsman et al 2002 how to choose soil water retention parameters.pdf
Gijsman_et_al_2007_Using the WISE database to parameterize soil inputs for crop simulation models.pdf

[JongChao]

@lpmorenoc Many thanks for your detailed reply. I'll read the paper.