摘要
基于2000~2014年我国粮食生产投入数据，建立C-D生产函数，根据利润最大化理论，即边际收益等于边际成本，测算了我国四大粮食作物生产中的化肥过量施用量。结果表明，稻谷、小麦和玉米生产中均存在不同程度的化肥过量施用，在此基础上提出我国应该加大农技推广宣传、大力推广测土配方施肥技术，引导农民科学、合理的施用化肥和农药，注意施肥施药的时机。同时，应调整化肥产品结构，大力发展有机肥。
Abstract
Based on crop production input data from 2000 to 2014, fertilizer overuse in crop production was estimated by constructing Cobb-Douglas production function under profit maximization framework. It was indicated that fertilizers used in rice, wheat and corn were excessive. Thus, China should increase agricultural technology promotion, promote soil testing and formula technology, guide farmers to the scientifically and rationally apply fertilizer and pesticides, and adjust the structure of chemical fertilizer.
国家科技期刊平台
NSTL
维普
万方数据