影响宁夏粮食产量波动的因素分析

摘要

基于1990—2008年宁夏粮食产量及相关影响因素数据，建立多元线性回归模型，分析了各因素对粮食产量影响的数量关系．结论表明：化肥施用量的增加是宁夏粮食增产的主要因素，同时政府在保证种植面积的条件下，要鼓励有机肥料的使用，优化农业机械动力的配置，加大技术投入，同时把国家对农村的支持政策落到实处．%The article establishes multiple linear regression model to analyze the impact of various factors on the quantitative relationship in food production based on the datas of Ningxia 1990--2008 grain yield and related factors. Conclusions show that the increase in the amount of chemical fertilizer is a major factor in food production in Ningxia. The thesis＇ inspiration is. Government should encourage the use of organic fertilizers, optimize the configuration of farm machinery power, increase technology investment with guarantee of planting area, meanwhile implement the support policy for rural.