Effects of EM on Humus Composition during Decomposition of Fresh Waste Leaves of Tobacco

• FU Libo, 
• JI Sigui, 
• SU Fan, 
• HONG Lifang, 
• YIN Mei, 
• CHEN Hua, 
• QIAO Zhixin, 
• YANG Zhixin, 
• HU Debo