USDA-ARS Colorado Sunflower Water Use and Productivity Dataset

The USDA-Agricultural Research Service conducted a deficit irrigation and water productivity field trial for irrigated sunflower (<i>Helianthus annuus</i>) in northeastern Colorado in 2008 through 2016. Oil-type sunflower was irrigated at a wide range of amounts in a replicated field trial. This dataset from that field trial is composed of 5 Excel workbooks. The dataset includes measurements of irrigation amount, precipitation, soil water storage, and plant responses; daily estimates of crop evapotranspiration; and seasonal crop water use and crop yield data. Soil parameters, hourly and daily weather data and photo images are also provided. The dataset can be useful to develop and evaluate sunflower crop models under varying conditions and levels of water stress.

美国农业部农业研究服务局（USDA-Agricultural Research Service）于2008年至2016年在科罗拉多州东北部开展了灌溉型向日葵（Helianthus annuus）的亏缺灌溉与水分生产率田间试验。本试验为重复田间试验，对油用型向日葵施加了大范围梯度的灌溉水量。该田间试验对应的数据集包含5个Excel工作簿，涵盖灌溉水量、降水量、土壤储水量及植株响应指标的实测数据，作物蒸散量日估算值，以及季尺度作物耗水量与作物产量数据。此外还提供了土壤参数、逐小时与逐日气象数据及实拍影像资料。该数据集可用于开发并评估不同水分胁迫条件与胁迫程度下的向日葵作物模型。