Total nitrogen accumulation amount of CMS lines was distinctly higher than their homotypic lines (P<0.05), with more nitrogen distributed to stalk and grain in CMS lines.
CMS玉米氮素积累总量高于其同型可育系（P<0.05），成熟期氮素在茎秆和籽粒中分配较多；
The results showed that straw application increased crop yield, soil organic carbon accumulation, soil total nitrogen and phosphorus content as well as phosphorus activation.
结果表明，秸秆还田提高了作物产量，增加了土壤有机碳积累和土壤氮磷含量，且能活化土壤磷素。
The absorption and accumulation of Nitrogen, Phosphorous were the highest at the period from pod-setting to pod-filling, account for 47.74% and 44.00% of total respectively.
不同生育阶段氮和磷的吸收与积累量最大值在结荚至鼓粒期，分别占总量的47.74%和44.00%。
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