Mine Nutrition Element Analysis of Soil and Flue-cured Tobacco in Main Tobacco-growing Areas in Baoshan,Changning

[Objective] The research aimed to harmonize chemical components in the flue-cured tobacco leaves and improve its quality. [Method] Microelements were analyzed in soil and leaves about the main tobacco-growing areas in Baoshan,Changnign. [Result] The correlation of copper,manganese,zinc content in tobacco leaves and the corresponding element in soils was significantly positive. The available Cu and Fe in soil of tobacco-growing areas was abundant. 11. 14% of soil in tobacco-growing areas was short of Mn,and 2. 05% of soil in tobacco-growing areas was short of Zn. Tobacco leaves were rich in Cu,poor in Fe and Zn were moderate. [Conclusion]In the flue-cured tobacco production,the zinc fertilizer should be increased,the iron fertilizer should be controlled and Mn should be sprayed.