【作者】 申孝军； 张寄阳； 李明思； 孙景生； 刘浩； 高阳； 杨贵森；

【Author】 Shen Xiaojun~1,Zhang Jiyang~1,Li Mingsi~2,Sun Jingsheng~1,Liu Hao~1,Gao Yang~1,Yang Guisen~2 (1.Key Lab for Crop Water Requirement and Regulation of Farmland Irrigation Research Insititute,Chinese Academy of Agricultural Sciences,Xinxiang 453003,China;2.Water Conservancy and Architectural Engineering College,Shihezi University,Shihezi 832003,China; 3.Irrigation Experiment Station of Water-conservancy Bureau in Xinjiang Production and Construction Crops,Urumqi 832002,China)

【机构】 中国农业科学院农田灌溉研究所作物需水与调控重点开放实验室； 石河子大学水建学院； 兵团水利局灌溉中心试验站；

【摘要】 为探讨新疆棉花节水新途径,采用人工控水试验研究了充分灌溉与调亏灌溉条件下膜下滴灌棉花的耗水量、产量与水分利用效率;在田间设置四个水分处理,利用取土烘干法监测棉田根区土壤贮水量的变化过程,并实测了棉花形态指标和产量;利用水量平衡法求得不同处理棉花各生育期的日均耗水量与蒸发皿系数。结果表明,与充分灌相比,适时适度的水分亏缺对棉花产量没有明显影响,但灌水量减少了24.88%,灌溉水利用效率提高了35%。本试验条件下,调亏灌溉是一种切实可行的节水灌溉模式,可在新疆膜下滴灌棉花种植区进一步研究和推广应用。更多还原

【Abstract】 In order to explore new water-saving approaches of cotton under cotton drip irrigated under plastic mulch in Xinjiang province.A field experiment was conducted through artificial water control to research the effect of different water treatment on water consumption, yield of cotton and water use efficiency(WUE)by drip irrigation under mulch.The change of soil water content under different water treatment were measure by drying method,yield,plant height and leaf area index of cotton were measured too.Average water use and crop factor of cotton under different water treatments was received using water-balance equation.Result showed that seed cotton yield and irrigation water use efficiency being improved 1.69%and 35.00%;24.88%irrigation water being saved by the treatment under appropriate amount of water deficit at growing stages than the treatment under water supply at fully.It suggeste that Regulated Deficit Irrigation(RDI)is a practiced irrigation approach which should be researched and applied in cotton producing with drip irrigated under plastic mulch of Xinjiang province.更多还原