Model Components


Under the Hood

The Cropping System Model (CSM) is structured in a modular format in which components separate along scientific discipline lines and have interfaces which allow replacement or addition of modules. CSM now incorporates all crop models as modules using a single soil module and a single weather module. The new cropping system model now contains models of 40+ crops derived from the original SOYGRO, PNUTGRO, CERES-Maize, and CERES-Wheat crop growth models.

The following schematic illustrates the connection between the primary and secondary modules of the CSM. The main program controls all the timing for the model, while the Land Unit module is used to control processing and data transfer between all primary modules.

DSSAT Cropping System Model schematic


Primary Modules

Management module

Soil module

Weather module

Soil-Plant-Atmosphere module

Plant module