Effects of Different Magnesium Levels on Nutrient Absorption and Leaf Quality of Flue-cured Tobacco

• LI Wei, 
• AI Kebiao, 
• XIAO Feiyan, 
• LI Mengxia, 
• LIU Hong, 
• GAO Shunxu, 
• BAO Yachao, 
• ZOU Congming