Analysis of Chemical Components Usability of Flue-cured Tobacco Leaves Evaluation in Guiyang Based on the Material Demand of Cigarette Brand

• QI Yongjie, 
• DENG Xiaohua, 
• XU Wenbin, 
• LU Jian, 
• WU Feng, 
• LI Hongguang, 
• WANG Shengcai