Regulatory Effects of Three Rhizosphere Growth-promoting Bacterial Agents on Nutrient Utilization, Yield, and Quality of Flue-cured Tobacco

• CHEN Weihao, 
• NING Dekai, 
• CHEN Gang, 
• ZHOU Jie, 
• LI Junhui, 
• LIU Zhengling, 
• LI Hongming, 
• LI Juan, 
• ZHAN Youguo