作物水肥耦合类型量化方法在华北冬小麦水氮配置中的应用
张经廷,吕丽华,张丽华,董志强,姚艳荣,姚海坡,申海平,贾秀领(
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A Novel Method for Quantitating Water and Fertilizer Coupling Types and Its Application in Optimizing Water and Nitrogen Combination in Winter Wheat in the North China Plain
ZHANG JingTing,Lü LiHua,ZHANG LiHua,DONG ZhiQiang,YAO YanRong,YAO HaiPo,SHEN HaiPing,JIA XiuLing()
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图1. 冬小麦不同水氮组合递次施氮增产率的年际变化特征
* 表示相对产量的实际值与理论值经T-检验在0.05水平上有显著性差异。下同
Fig. 1. Inter-annual variation characteristics of yield increase ratio derived from added N-fertilizer in different water nitrogen combinations in winter wheat
* Means the true value of relative yield was significant difference from its theoretical value at 0.05 level by T-test. The same as below
