Soil available Ca,Mg,S nutrient contents status were investigated and determined in 629 soil samples which were collected from 50 tobacco growing towns in Yongzhou city in 2011. The results showed that the contents of available S and exchangeable Ca were rich,rarely lack. The content of exchangeable Mg was partly lack; it should be applied to soil properly. The tobacco growing soils in Yongzhou area were classified into 2 types by systematic cluster analysis of soil available Ca,Mg,S. Fertilizer should be a...