The Integrated Farm System Model (IFSM) is a process-based simulation of dairy, beef, and crop farming systems. This farm model provides a tool for evaluating the long term performance, economics, and environmental impacts of production systems over many years of weather. Environmental impacts include volatile nitrogen losses, nitrate loss to ground water, erosion, soluble and sediment phosphorus losses to surface water, and hydrogen sulfide, VOC and greenhouse gas emissions.
Further information on the Integrated Farm System Model is available at https://www.ars.usda.gov/Main/docs.htm?docid=8519
This software was last updated on November 7, 2013.