文山烟区植烟土壤pH分布特点及其与主要养分的相关关系

摘要

Soil pH values and main nutrients in 142 samples collected from Wenshan tobacco growing areas were analyzed. Results showed that:(1) Soil pH values of Wenshan were generally suitable for tobacco cultivation, with average pH value of 6.23. About 43.7%of the soil were in the optimal zone,i.e. pH 5.5~6.5;(2) The average pH values of different soil types were in the following order:red soil