Maintenance and promotion of soil quality are two crucial issues in agriculture and forestation.In this paper,we developed a microbial method to improve soil quality of Eucalyptus plantation.A composite preparation of marine microbes including marine Bacillus subtilis 3728,marine B.subtilis 3512,marine Trichoderma TF4 and some clover was applied into the one-year-old Eucalyptus plantation soil.The results showed this composite preparation could regulate microbial populations and communities of the soil.The ...