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
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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
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图4. 不同区域施氮量与冬小麦产量及水分利用效率的关系 |
Fig. 4. The relationship between nitrogen rates and winter wheat yield and water use efficiency in different regions |
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