Analysis of effects on the changes in food production in Ningxia
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.
国家科技期刊平台
NSTL
万方数据
维普
