施氮量对黄土高原旱地冬小麦产量和水分利用 效率影响的整合分析
马登科1,2,殷俐娜1,3,刘溢健3,杨文稼3,邓西平1,3,王仕稳1,3(
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A Meta-Analysis of the Effects of Nitrogen Application Rates on Yield and Water Use Efficiency of Winter Wheat in Dryland of Loess Plateau
MA DengKe1,2,YIN LiNa1,3,LIU YiJian3,YANG WenJia3,DENG XiPing1,3,WANG ShiWen1,3()
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图2. 氮肥在不同区域（b）、不同年均温（c）、不同降水量（d）及不同耕层有机质含量（e）下对冬小麦产量（A）和水分利用效率（B）的影响
n 值代表观测数。下同
Fig. 2. Effect of nitrogen application on winter wheat yield (A) and water use efficiency (B) under different regions (b), different annual average temperature (c), different precipitation (d) and different topsoil organic matter content (e)
The value of n represents the number of observations used for the analysis. The same as below
