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在集约农业体系中,合理施用氮肥是稳定和提高农业生产,减少农业投入,提高经济效益的基础;同时也是稳定农业生产体系,保护环境的一项重要措施。不合理施用氮肥所造成的土壤、大气、地下水污染,已为研究人员和政府部门所关注。
In an intensive agricultural system, the rational application of nitrogenous fertilizer is the basis for stabilizing and raising agricultural production, reducing agricultural inputs and improving economic efficiency. It is also an important measure to stabilize agricultural production systems and protect the environment. Soil, air and groundwater pollution caused by irrational application of nitrogen fertilizer have attracted the attention of researchers and government departments.