CLASSIM - Crop Land and Soil Simulator

CLASSIM is a python based graphical user interface for the crop models developed by the USDA-ARS Adaptive Cropping Systems Laboratory. It includes these crop models:

MAIZIM (Maize)

GOSSYM (Cotton)

GLYCIM (Soybean)

SPUDSIM (Potato)

 The github link for the source code can be found here

The installer is for Windows 10 or Windows 11 operating systems. It allows non-administrative installs. By default, it installs the executable into the user's profile. The installer creates a folder called CLASSIM in the user's documents folder and puts the models and databases into this folder.

• To install, download  the ‘CLASSIM-2.3.0.6-setup.exe’ file using the download link below.
• Follow the default folder or path shown in the installation window by clicking ‘next.’
• Select 'install for this user only and select the default local folder which should go to a subfolder in your profile
• Click the check mark button on ‘Create a Desktop shortcut’
• This will create a desktop icon and install the CLASSIM executable in the program files (x86) folder.
• This will also create a " CLASSIM " folder in your documents folder. This folder contains the databases and executables for creating and running scenarios.
• The CLASSIM can be accessed from the desktop icon or by searching (win+s) for CLASSIM on the windows search button.

Please contact Dennis.Timlin@usda.gov  if you have any questions

 We also welcome any feedback. 

CLASSIM Program for Tutorial

CLASSIM Program and Setup

This is a version of CLASSIM we used for a class we gave in the People's Republic of Laos in the fall of 2024. The executables are the same but the database contains examples for the tutorial.

Tutorial Information Files

These are the powerpoint and instructions used in the tutorial