ANALYSIS OF SOIL ACIDITY OF SUMY REGION
The level of soil acidity of Sumy region have being analyzed during 45 years. It was established the Increasing of areas with acid soils, especially in the part with chernozem cover. It was set area of 280,8 thousand hectares of acid soils, requiring obligatory liming. It was analyzed the dynamics of liming of acid soils since1966 till 2012. Reasons of increasing of soil acidity have been revealed and recommendations for their decreasing have been offered.