土壤无机氮残留的施氮影响及调控研究进展

Research Progress on Nitrogen Fertilizer Effect and Regulation of Soil Inorganic Nitrogen Residual

土壤无机氮残留与生态环境安全以及土壤氮素有效性、氮肥减量施用等紧密关联,日益成为生态、环境、土壤和植物营养等学科十分关注的热点之一。氮肥(化肥和有机肥)是耕作土壤无机氮残留的主要来源,并产生重要影响。通过合理施肥等,可以调控土壤中残留无机氮含量。今后,可在最佳经济施氮量的确定和植物性硝化抑制剂等方面作更多的研究。

Residual soil inorganic nitrogen （N） is related to ecological safety, soil nitrogen availability and reduced use of nitrogen fertilizer. It is becoming the hot topic for scientists of ecology, environment, soil, plant nutrition and so on. Nitrogen fertilizers have significant effects on re- sidual soil inorganic N. Residual soil inorganic N can be regulated by reducing N fertilizer, rational fertilization and so on. In the future re- search, the economically optimum N application and plant-nitration inhibitor can be paid more attention.