Community structure of soil mites in the farmland treated with three different fertilizers was studied in Qu zhou experiment station, China Agricultural University from April to September 1997. Recent years, inputting more and more chemical fertilizers and pesticides into farmland has disturbed sustainable soil utilization. Alternative methods are imperative to be searched. Effective Microorganisms (EM) compost is a compound fertilizer with many microorganisms. What will happen by using EM compost to ecolog...