Analysis of Characters of Soil Nutrient in Main Tobacco Planted Base Units of Tengchong

In order to know the nutrient status of tobacco planted soil in volcanic region of Tengchong,353 soil samples were collected from six main base units of Tengchong from 2010 to 2011 to test and analyze the soil nutrient.The results showed that the pH of soil in Tengchong was acidic,but most of the pH was in a range of appropriate value.The contents of organic matter,available N and available P were higher than average,but the contents of effective M and B were low.Therefore,some advices were proposed according to the status quo of Tengchong,such as controlling the contents of N and P,increasing contents of M and B,partially increasing the contents of K and Zn.