Application of Grey Correlation Theory and Regression Analysis in Influence of Meteorological Factors on Spring Peanut Yield：Taking Guzhen Country of Anhui Province as an Example

In order to investigate meteorological factors affecting peanut yield in Guzhen，dependence of spring peanut yield and meteorological factors in Guzhen were analyzed based on grey correlation analysis method and multiple linear regression analysis.Results showed that precipitation in April，May，June，September，during growth period were the main factors affecting yield of spring peanuts.Temperature factor was not the main factor limiting yield of spring peanuts.Multiple linear regression equations were calculated and the coefficients of respective variables passed the significance test.In the future，in the cultivation of spring peanuts，more attention should be paid to impact of precipitation and reasonable management of field water.