Field trials assessed irrigation and crop productivity in sunflower, suggesting improved water management strategies.
The USDA-Agricultural Research Service conducted deficit irrigation and water productivity field trials for irrigated sunflower (Helianthus annuus) in northeastern Colorado from 2008 to 2016. The dataset from these field trials, composed of 10 Excel spreadsheet workbooks, is available online from the USDA National Agricultural Library "Ag Data Commons". The dataset includes measurements of irrigation, precipitation, soil water storage, and periodic plant responses; daily estimates of crop evapotranspiration; and seasonal crop water use, biomass, and yield data. Soil parameters, hourly and daily weather data, management practices, and photo images are also provided. Each data file includes a data dictionary. The dataset can be useful to develop and evaluate sunflower crop growth and water use models under a wide range of water availability.
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Trout et al. (2025) studied this question.
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