The AquaCrop model was used to simulate soil water content, evapotranspiration, and yield for grain sorghum under different irrigation regimes and dryland conditions at Bushland, TX, and Goodwell, OK. The study showed that AquaCrop can be used as an effective tool for evaluating the impacts of different irrigation management strategies on grain sorghum production in the study region. Finally, model results revealed that planting date significantly impacts sorghum yield and irrigation requirements, while the impact of planting density in the range of 55,000 to 75,000 seeds/acre was negligible with regard to resulting sorghum yield and irrigation requirements.
Publication: Masasi, B., S. Taghvaeian, P.H. Gowda, J. Warren, and G. Marek (2019). Simulating Soil Water Content, Evapotranspiration, and Yield of Variably Irrigated Grain Sorghum Using AquaCrop. Journal of the American Water Resources Association 55 (4): 976–993.
This article is part of a JAWRA featured series: Optimizing Ogallala Aquifer Water Use to Sustain Food Systems.