覆膜畦灌条件下不同灌溉方式对油葵产量及水分效率的影响  

Impact of Different Irrigation Methods on Sunflower Yield and Water Use Efficiency under Film Mulching and Ridge Irrigation Conditions

作　　者：吕婷 LYU Ting(Wuwei Water Science and Technology Promotion Center,Wuwei 733000,China;Wuwei Central Irrigation Experiment Station,Wuwei 733000,China)

机构地区：[1]武威市水利科技推广中心,甘肃武威733000 [2]武威市中心灌溉实验站,甘肃武威733000

出　　处：《水资源开发与管理》2024年第4期28-33,共6页Water Resources Development and Management

摘　　要：为研究覆膜畦灌条件下不同灌溉定额对油葵产量及水分效率的影响,于2018年开展了田间试验,通过3个不同灌水处理和对照处理的比较,测定覆膜畦灌油葵不同灌水处理下土壤水热变化和产量。结果表明,阶段耗水量和总耗水量对照处理均高于其他处理;并非灌水量越多产量越高;较对照处理,灌溉定额180mm,灌水4次处理后,油葵产量和水分利用率最高,研究成果可为西北旱区畦灌油葵灌溉制度的制定提供理论依据。In order to study the impact of different irrigation quotas on sunflower yield and water use efficiency under film mulching and ridge irrigation conditions,a field experiment was conducted in 2018.This research project compared three different irrigation treatments and a control treatment,measuring soil moisture and temperature changes and yields of sunflowers under different irrigation treatments in film mulching and ridge irrigation.The results show that the water consumption in both the stage and total for the control treatment is higher than that for other treatments;more irrigation does not necessarily lead to higher yields.Compared to the control,the irrigation quota of 180 mm with four irrigation events result in the highest sunflower yield and water use efficiency.This can provide a theoretical basis for establishing irrigation regimes for sunflower ridge irrigation in the arid regions of northwest China.

关 键 词：油葵 灌溉制度 土壤水分 耗水量 节水高产 

分 类 号：TV212[水利工程—水文学及水资源]