为了研究油葵在垄膜沟灌条件下的产量及水分生产效益，通过设定不同灌水定额，分析不同灌水处理对油葵干物质积累、产量、水分利用效率、耗水特性的影响。结果表明，总灌溉定额2550 m3/hm2，全生育期灌水5次时，油葵产量较常规覆膜畦灌平均增加2.86%，节水23.62%，灌溉定额降低195.0 mm，生育期耗水降低117.1 mm，水分生产效率为2.68 kg/m3。

In order to study the yield and water production benefit of oil sunflower under ridge-film furrow irrigation， different irrigation quotas were set up to study the effects of different irrigation treatments on dry matter accumulation， yield， water use efficiency and water consumption characteristics of oil sunflower. The results showed that compared with conventional furrow irrigation， the yield of sunflower increased by 2.86%， 23.62% water saved， irrigation quota decreased by 195.0 mm， water consumption during growth period decreased by 117.1 mm， and water production benefit reached to 2.68 kg/m3 under the suitable irrigation quota conditions (total irrigation quota 2 550 m3/hm2， irrigation five times during the whole growth period).

S275.3；S565.5

国家自然基金项目“双垄沟播喷灌垄-沟-膜孔界面水分汇流入渗特征与作物生理响应机制”51769002)。