College professors teaching courses on modeling soil-plant-climate-management processes to upper undergraduate and graduate students.Students who wish to learn and use models for mathematically describing processes in their graduate research.Cropping systems modelers interested in improving their crop growth models for crop responses to water and nutrients, to develop improved water and nutrient management strategies.Plant breeders interested in developing new crop cultivars that will enhance water and nutrient use efficiency, reduce GHG emissions, enhance C in soils, and are resilient to climate change. Agricultural scientists/engineers who are interested in management decision aids for producers for managing water and adapting to changing climate.Government Agencies that have interest in making new policies that increase the flexibility in mitigating effects of water and climate variability.