就两个基因型品种而言，小偃22的水氮利用效率显著高于小偃6号。
The two genotypes winter wheat group water use efficiency increased under nitrogen treatment, and Xiaoyan 22 are higher than Xiaoyan6.4.
研究施肥量和灌水量对不同滴灌模式棉花产量、水分利用效率（WUE）的水氮耦合效应影响。
The coupling effect of water and nitrogen on cotton yield and water use efficiency(WUE) was studied under different drip irrigation patterns.
可见，小麦氮素含量和氮素利用效率的遗传模型在不同的水氮环境中不完全一样。
It is thus evident that the genetic models of nitrogen concentrations and nitrogen utilization efficiency of wheat in different water and nitrogen environments were different.
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