| 冬小麦生长季不同灌溉模式对冬小麦-夏玉米产量与水分利用的影响 |
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| 作者姓名： | Wang HX Li YY Ren TZ Pang HC |
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| 作者单位： | 中国农业科学院农业资源与农业区划研究所,北京,100081 |
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| 基金项目： | 农业公益性行业科研专项(201103001)资助 |
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| 摘 要： | 在华北平原黑龙港流域对冬小麦实行3种灌溉模式,研究了不同灌溉模式对冬小麦-夏玉米产量、耗水特性和水分利用效率的影响.结果表明:浇底墒水+拔节水处理(W2,75 mm+90 mm)和浇底墒水+拔节水+灌浆水处理(W3,75 mm+90 mm+60 mm)周年总产量均显著高于只浇底墒水处理(W1,75 mm),增幅分别为8.7%和12.5%.冬小麦全生育期对土壤水的消耗随灌溉量的增加而减少,夏玉米季总耗水量随冬小麦季灌溉量的增加而增加.W2处理冬小麦水分利用效率(WUE)比W3处理高11.1%,而其夏玉米水分利用效率(WUE)与W3处理差异不显著.W2和W1处理的周年水分利用效率(WUET)分别为21.28和21.60 kg.mm-1.hm-2,比W3处理分别高7.8%和9.4%.综合周年产量、耗水量和水分利用效率,W2是较好的节水丰产灌溉模式.
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| 关 键 词： | 灌溉模式 冬小麦 夏玉米 产量 耗水量 水分利用效率 |
Effects of different irrigation modes in winter wheat growth season on the grain yield and water use efficiency of winter wheat-summer maize |
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| Wang HX,Li YY,Ren TZ,Pang HC.Effects of different irrigation modes in winter wheat growth season on the grain yield and water use efficiency of winter wheat-summer maize[J].Chinese Journal of Applied Ecology,2011,22(7):1759-1764. |
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| Authors: | Wang Hai-xia Li Yu-yi Ren Tian-zhi Pang Huan-cheng |
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| Institution: | WANG Hai-xia,LI Yu-yi,REN Tian-zhi,PANG Huan-cheng(Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China) |
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| Abstract: | Three irrigation modes in winter wheat growth season were carried out in Heilonggang basin of North China Plain to investigate their effects on the grain yield,water consumption,and water use efficiency(WUE) of winter wheat-summer maize.The three irrigation modes included irrigation before sowing(75 mm,W1),irrigation before sowing and at jointing stage(75 mm+90 mm,W2),and irrigation before sowing,at jointing stage,and at filling stage(75 mm+90 mm+60 mm,W3).With the irrigation modes W2 and W3,the increment o... |
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| Keywords: | irrigation mode winter wheat summer maize yield water consumption water use efficiency |
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