Field research scientists and graduate students conducting research on cropping/range systems, who want to know how to manage soil water and nutrients optimally, and mitigate and adapt to climate change. Agricultural consultants and progressive farmers who are looking for tools in decision making process for precision management. Plant breeders interested in developing new crop cultivars that make more efficient use of water and nutrients, reduce GHG emissions and enhance C, and are resilient to climate change.  College professors teaching courses that include water and nutrient management under varying climates and 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 in areas of water and climate change. Cropping systems modelers interested in improving their crop growth models for crop responses to water and nutrients, to develop improved water and nutrient management scenarios.