吉林省玉米主产区土壤肥力研究

Studies on Soil Fertility Status of Main Maize Production Area in Jilin Province

在吉林省国家优质粮食工程建设项目区的18个县(市、区)利用GPS定位,采集耕层样品进行养分含量测定。通过主要耕作土壤在不同土壤类型、不同气候区域的分析来了解肥力现状,同时与1979年第二次土壤普查结果进行对比分析,了解30年来吉林省土壤肥力变化情况,旨在为农业生产提供科学依据。

In 18 counties of Jilin Province and the national quality of food engineering construction project area using GPS positioning,nutrient contents in topsoil samples were determined.Through the analysis of main cultivated soils in different soil types,different climatic regions,fertility status was gotten.These data were compared with that of the second soil survey in 1979 to understand the change of Jilin Province in 30 years,so as to provide scientific basis for agricultural production.