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施用氮肥是提高小麦籽粒产量、改善品质的重要措施,但是不合理施氮会导致氮肥利用率的降低,氮肥损失的增加。本文综述了小麦-土壤系统中氮肥对土壤氮素转化和小麦氮素吸收利用的影响及氮素损失等方面的研究进展。
Nitrogen fertilizer application is an important measure to improve wheat grain yield and improve quality. However, unreasonable nitrogen application will lead to the decrease of nitrogen use efficiency and the loss of nitrogen fertilizer. This review summarizes the effects of nitrogen fertilizer on soil nitrogen conversion and nitrogen uptake and utilization of wheat and nitrogen losses in a wheat-soil system.