通海县菜地土壤养分状况分析与评价

Analysis and Evaluation of Vegetable Soil Nutrient Status in Tonghai

为指导通海县蔬菜种植生产实践,对通海蔬菜主产区的秀山镇的7个村组的80个土壤样品进行主要养分含量测定与统计分析,分析与评价菜地土壤的酸碱度状况和主要肥力指标。结果表明:蔬菜主产区土壤的p H平均值7.52,大部分土壤p H呈现弱碱性至碱性,土壤碱性化严重;土壤有机质含量丰富,全氮和碱解氮处于高含量标准水平,而有效磷和速效钾含量达到了较高标准水平。为此初步提出了改良土壤酸碱性,减施氮肥、适当施用有机肥、控施磷肥、稳定钾肥的建议。

This paper analyzed and evaluated p H conditions and main fertility indexes of vegetable soil inXiushan town of Tonghai County, Yunnan Province by determining 80 soil samples from seven villages, inorder to guide local vegetable production. The results showed that： soil p H of the vegetable producing areas wasaveragely 7.52, most was weak alkaline to alkaline, the alkalization was serious. The content of soil organicmatters was abundant, total nitrogen and alkali solution nitrogen were of high content standard, and available Pand available K content reached higher standard. Suggestions are put forward including improving soil acidity-alkalinity, reducing the application of nitrogen fertilizer, proper application of organic fertilizer, controlledapplication of phosphate fertilizer, and stable application of potassium fertilizer.