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Effects of Continuous Fertilization on the Growth,Yield and Water Consumption of Winter Wheat
Authors
刘文兆
张益望
杨玉玲
王俊
Publication date
1 January 2009
Publisher
Abstract
基于长期定位施肥试验,研究了不同施肥对冬小麦生长、产量及水分利用的影响。结果表明:不同施肥均能促进冬小麦株高、叶面积、生物量的增长,株高、叶面积、生物量均为:单施氮肥处理(N)高于不施肥处理(CK),氮磷配施处理(NP)显著高于CK和N处理,三个有机肥处理(M、NM和NPM)均较高。不同施肥对冬小麦光合速率影响显著,NPM处理的光合速率在各个生育期均最高;其次分别为NM处理和NP处理,而M处理在前期较高,后期下降较快,N和CK处理均较低。不同施肥处理小麦产量:NPM>NM>M>NP>N>CK,不同施肥均能显著增加小麦产量(增产量为341~4388kg/hm2),除M和NM处理,其他处理均有显著差异;冬小麦耗水量和水分利用效率均随施肥水平提高而增加,NPM和NP处理显著高于N和CK处理。表明在本试验年单施氮肥对小麦生长及产量影响较小,单施有机肥及不同肥料配施均能显著促进小麦生长及产量提高,有机肥的增产效应显著高于无机肥,其中NPM处理的产量及水分利用效率均最高
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018