DSSAT is a software application program, which contains dynamic crop growth simulation models of more than 40 crops. DSSAT is supported by a range of utilities and applications, including weather, soil, genetic, crop management and observational experimental data, as well as sample datasets for all crop models. Crop simulation models simulate growth, development and yield as a function of soil plant atmosphere dynamics. DSSAT has been used in many applications, from genetic modeling to farms and precise management, to regional assessment of climate change and its impacts. DSSAT has been used for more than 30 years by researchers, educators, consultants, promoters, growers, private enterprises, policy and decision makers, and many people in more than 150 countries around the world.