In order to evaluate the effectiveness of daily drip irrigation on the growth of winter wheat, a 2-year field experiment was conducted to compare the influence of conventional irrigation (CI) and daily drip irrigation (DI1 and DI2) on the soil water content, evapotranspiration dynamics, grain yield and water use efficiency (WUE) of winter wheat. CI irrigated 75 mm at elongation and anthesis periods, respectively. DI1 and DI2 started irrigation from the elongation period and single-time irrigation amount was 30 and 45% respectively of the daily reference evapotranspiration until total irrigation amount reached 150 mm or winter wheat was harvested. During 2016–2017, the grain yield and WUE of DI1 improved significantly by 9.7 and 30.2%, respectively, compared with those of CI. In 2017–2018, grain yield of DI1 and DI2 improved significantly by 10.4 and 7.7%, and WUE of DI1 and DI2 increased by 8.5 and 12.7%, respectively, compared with those of CI. Compared with CI, winter wheat exposed to daily drip irrigation enhanced water utilization in deep soil layers and reduced the noon evapotranspiration rate, leading to less water consumption. Simultaneously, daily drip irrigation ensured water supply in the upper soil layers during the grain-filling stage, and increased thousand grain weight and yield. The results showed that daily drip irrigation could greatly improve winter wheat yield and WUE by homogenizing water supply based on real-time weather, which provided a reference for the formulation of accurate water-saving drip irrigation strategy.

中文翻译：

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基于实时天气的每日滴灌提高冬小麦产量和水分利用效率

为了评估每日滴灌对冬小麦生长的有效性，进行了为期 2 年的田间试验，比较了常规灌溉（CI）和每日滴灌（DI1 和 DI2）对土壤含水量的影响，冬小麦蒸散动态、产量和水分利用效率（WUE）. CI 分别在伸长期和开花期灌溉 75 mm。DI1和DI2从伸长期开始灌水，单次灌水量分别为日参考蒸散量的30%和45%，直至总灌水量达到150 mm或收获冬小麦。2016-2017年，DI1的粮食产量和WUE较CI分别显着提高了9.7%和30.2%。2017-2018年，DI1和DI2粮食产量显着提高10倍。4%和7.7%，DI1和DI2的WUE较CI分别增加8.5%和12.7%。与CI相比，每日滴灌冬小麦提高了深层土壤水分利用，降低了中午蒸散率，从而减少了耗水量。同时，每日滴灌保证了灌浆期上层土层的供水，提高了千粒重和产量。结果表明，基于实时天气的均质供水，每日滴灌可显着提高冬小麦产量和WUE，为制定精准节水滴灌策略提供参考。每天滴灌的冬小麦提高了深层土壤的水分利用率，降低了中午的蒸散率，从而减少了耗水量。同时，每日滴灌保证了灌浆期上层土层的供水，提高了千粒重和产量。结果表明，基于实时天气的均质供水，每日滴灌可显着提高冬小麦产量和WUE，为制定精准节水滴灌策略提供参考。每天滴灌的冬小麦提高了深层土壤的水分利用率，降低了中午的蒸散率，从而减少了耗水量。同时，每日滴灌保证了灌浆期上层土层的供水，提高了千粒重和产量。结果表明，基于实时天气的均质供水，每日滴灌可显着提高冬小麦产量和WUE，为制定精准节水滴灌策略提供参考。并增加千粒重和产量。结果表明，基于实时天气的均质供水，每日滴灌可显着提高冬小麦产量和WUE，为制定精准节水滴灌策略提供参考。并增加千粒重和产量。结果表明，基于实时天气的均质供水，每日滴灌可显着提高冬小麦产量和WUE，为制定精准节水滴灌策略提供参考。