the EPIC and DSSAT models, simulate the most relevant
physiological and hydrologic processes. In contrast, the simplified crop water-yield models,such as the CROPWAT model
The EPIC crop simulation model can be used to simulate water and nitrogen effects on crop growth. Ko et al. (2009) note that the model has been used extensively in the US and other counties. The major biotic and/or abiotic factors, such as interactions of nutrients, weed or pest infestations and field variations of soil chemical and physical properties, have significant effects on crop growth, but the EPIC model fails to biophysically simulate these effects on crop growth
In addition to the EPIC model, the DSSAT models is widely used for crop simulation
The DSSAT model includes only a few crops in the system and the models are not specified to respond to all environment and management factors. As such, the same limitations for the EPIC model is applicable for the DSSAT model