| 滴灌春小麦水肥耦合与产量关系试验研究 |
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| 引用本文： | 周艳,李明思,蓝明菊,李东伟,马丽娟,刘东.滴灌春小麦水肥耦合与产量关系试验研究[J].灌溉排水学报,2012,31(6):89-93. |
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| 作者姓名： | 周艳 李明思 蓝明菊 李东伟 马丽娟 刘东 |
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| 作者单位： | 石河子大学水利建筑工程学院,新疆石河子,832003 |
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| 基金项目： | 基金项目:国家自然科学基金项目 |
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| 摘 要： | 基于大田滴灌施肥条件下,观测了春小麦不同生育阶段的分蘖数和叶面积指数,测量了春小麦的实际产量,建立滴灌春小麦水肥耦合与产量的关系。分析结果表明,春小麦各生育阶段的施肥增产系数分别为:0.17(苗期—分蘖期)、0.35(分蘖—拔节期)、0.41(拔节—抽穗期)、0.07(抽穗—灌浆期)、0.11(灌浆—收获期),滴灌春小麦苗期—分蘖期、抽穗—浆期和灌浆—收获期施肥对增产的作用不大,而分蘖—拔节期和拔节—抽穗期施肥对增产的作用最大。在高频滴灌条件下,根据春小麦需肥规律在每个生育阶段都随水施肥,可以提高春小麦的产量。
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| 关 键 词： | 滴灌施肥 水肥耦合 春小麦 产量 |
Experimental Research of Water-fertilizer Coupling on Spring Wheat Yield under Drip Irrigation |
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| ZHOU Yan,LI Ming-si,LAN Ming-ju,LI Dong-wei,MA Li-juan,LIU Dong.Experimental Research of Water-fertilizer Coupling on Spring Wheat Yield under Drip Irrigation[J].Journal of Irrigation and Drainage,2012,31(6):89-93. |
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| Authors: | ZHOU Yan LI Ming-si LAN Ming-ju LI Dong-wei MA Li-juan LIU Dong |
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| Institution: | (College of Water Conservancy and Architecture Engineering,Shihezi University,Shihezi 832003,China) |
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| Abstract: | Field experiments were carried out to study the effects of fertilization at different growth stages on the spring wheat yield under drip irrigation.The tiller number and leaf area of spring wheat were observed in growing stages,the theoretical grain yield of spring wheat was measured and the relation between water-fertilizer coupling and spring wheat yield was built.The results showed that the yield increase coefficients of spring wheat growth stages were as follows: 0.17(seeding-tillering stage),0.35(tillering-jointing stage),0.41(jointing-heading stage),0.07(heading-filling stage),and 0.11(filling-harvest stage).Spring wheat yield would increase slightly if it was fertilized in the seeding-tillering stage,the heading stage-filling stage and the filling-harvest stage,while the spring wheat yield would increase most saliently if fertilizer was applied in the tillering-jointing stage,and the jointing-heading stage.With the sufficient drip irrigation,the spring wheat yield was improved by fertilization with water in each growth stage. |
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| Keywords: | drip fertigation water and fertilizer coupling spring wheat yield |
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