Research on Fertilizer Efficiency of Continuous Cropping Greenhouse Cucumber Based on DEA Model
作者单位：College of Information EngineeringNorthwest A&F University College of Mechanical and Electronic EngineeringNorthwest A&F University
会议名称：《第四届国际计算机与计算技术在农业中的应用研讨会》
会议日期：2011年
学科分类：09[农学] 0902[农学-园艺学] 090202[农学-蔬菜学]
关 键 词：Greenhouse cucumber Fertilization Efficiency DEA method
摘 要：Fertilizer efficiency directly affects the production of continuous cropping greenhouse *** analyzing the fertilizer efficiency is of great significance in providing decision-making support for fertilization of greenhouse *** establishing the DEA models of continuous cropping greenhouse cucumber and taking existing data samples as study objects,the problems of fertilizer efficiency in traditional fertilization,target yield fertilization and mathematical model fertilization were *** the technical efficiency,pure technical efficiency,scale efficiency and redundancy rates of the three types of fertilization methods have been obtained by analyzing the relationship of three inputs(N,P