Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China;
University of Chinese Academy of Sciences, Beijing, China;
Chenzhou Tobacco Company of Hunan Province, Chenzhou, China;
Hunan Tobacco Leaf Redrying Co. Ltd., Chenzhou, China;
Hunan Provincial Company of CNTC, Changsha, China;
RAINFALL; Chemical Characteristics; PH; Nitrogen Form; Ion Composition; Tobacco-Growing Region; Chenzhou;