采用固态及液态培养法研究了 7株钾细菌在不同条件下对土娄土中 6种元素的活化作用和对 p H的影响。结果表明 :1钾细菌在固态培养条件下对 P、K、Si元素的活化作用小于液态培养 ;在固态培养中 ,钾细菌对土娄土中 Fe、Mn元素有活化作用 ,但却导致 Zn元素发生固定 ;2固态培养中 ,钾细菌引起的土壤 p H下降幅度小于液态培养 ;3灭菌处理使土娄土生物释钾量提高 ,但对生物释硅量无明显影响 ;4钾细菌不同菌株对土壤养分的活化能力差异很大 Solid-state and liquid culture methods were used to study the activation of six K elements in soil and their effect on p H under different conditions. The results showed that: 1 potassium bacteria activated less P, K, Si in solid culture than in liquid culture; in solid culture, potassium bacteria activated Fe and Mn in soil, but caused Zn And the occurrence of immobilization was fixed.2 In the solid-state culture, the decrease rate of p H in the soil caused by potassium bacteria was less than that in the liquid culture. 3 The sterilization treatment increased the amount of potassium released from the soil, but had no significant effect on the amount of silicon release. The ability of soil nutrient activation vary widely