So microorganism could be better to treat human feces, the human feces and urine could be composted to produce organic fertilizer as by-products rich in N, P and K.

• 利用尿素、硝酸铵、磷酸铵、氯化钾等基础肥料进行二次加工制成复合肥料,是近代化肥生产的必然趋势,也符合科学发展观。