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从施肥技术、施肥条件、国家农业政策等方面论述了化肥对粮食安全保障作用的制约因素,通过我国农垦系统和全国农业的化肥施用量、粮食产量的比较,进一步说明实行规模化经营、科学管理和综合应用先进生产技术对提高化肥效益和保障粮食安全的重要性。
From the aspects of fertilization technology, fertilizing conditions and national agricultural policies, the paper discusses the restrictive factors of chemical fertilizer on the role of food security. Through the comparison of China’s agricultural and land-harvesting systems and the amount of chemical fertilizers and grain output of the national agriculture, it further illustrates that the implementation of large-scale management and scientific management And the importance of applying advanced production technology to improve fertilizer efficiency and ensure food security.