The activities of five soil enzymes all increased under PSB or organic fertilizer applications, and the effect of organic fertilizer was more apparent than that of PSB.

• 光合细菌和有机肥对过氧化氢酶、脲酶、转化酶、碱性磷酸酶、蛋白酶等5种土壤酶活性均有明显促进作用，有机肥作用大于光合细菌。