楚雄州绿色优质烟叶土壤养分状况分析及调控

Analysis and Regulation on the Soil Nutrients Status of Green and High-quality Tobacco Production in Chuxiong

为促进绿色优质烟叶生产,对楚雄州10县市具有代表性的绿色优质烟叶土壤取样测试分析,测定540个样点的养分含量。结果表明:土壤pH、有机质和有效磷含量分别有57.75%、74.83%和69.55%,均在适宜范围;碱解氮和速效钾养分含量丰富;水溶性氯含量差异大,偏低和过高并存。在生产中要开展好土壤保育工作和减氮稳磷增钾技术,切实调控好土壤水溶性氯,注重绿色生产和绿色栽培措施的落实,做好分类指导和技术服务,促进烟草产业与环境保护协调发展。

In order to promote the production of green high-quality tobacco leaves,soil samples of representative green high-quality tobacco leaves from 10 counties and cities in Chuxiong prefecture were analyzed.The nutrient contents of 540 samples were determined.The results showed that soil pH,organic matter and available phosphorus of soil samples in appropriate range were accounting for 57.75%,74.83%and 69.55%,respectively.Generally,the contents of available nitrogen and available potassium of most samples were abundant.Difference of water-soluble chlorine was large among soil samples.In conclusion,the integrated technologies,including soil conservation,reduction of nitrogen and phosphorus,increasing potassium,controlling of soil water-soluble chlorine,and good classified guidance and technical services,could promote coordinated development of tobacco industry and environmental protection.