Abstract
Datasets are presented for experiments on alfalfa (Medicago sativa L.) (1996-1999), soybean (Glycine max (L.) Merr.) (1995, 2003, 2004, 2010, 2019), sunflower (Helianthus annuus L.) (2009, 2011), and winter wheat (Triticum aestivum, L.) (1989-1990, 1991-1992, 1992-1993). Weighing lysimeters were used to determine crop evapotranspiration (ET). In-soil and above ground microclimate and ET data are presented on a 15-minute interval as are weather data for all days of the year. Soil water content data from calibrated neutron probe readings are presented on a periodic basis. Crop planting, harvest, fertilization, pest control, and other agronomic information for all 12 seasons are presented in agronomic calendars by day of year. Crop growth data are presented on a periodic basis throughout the growing season, as are crop biomass and yield data for each harvest. The data are suitable for model calibration, testing, and improvement, and for analysis of effects of weather, irrigation and other agronomic decisions on crop yield and water productivity in the Southern High Plains region of the USA.