In China today, the utilization efficiency of farming water is about 30-40 percent.
在今天的中国，农业用水的利用效率约为30%-40%。
Through fixed field experiment and determinations of soil moisture, the field water utilization efficiency of wheat and rape seeds was discussed under no tillage and straw mulching.
通过田间定位试验和土壤水分的测定，探讨了免耕和秸秆覆盖还田对小麦、油菜土壤水分利用效率的影响。
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.
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。
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