The results showed silicate bacteria has different potassium soluting ability for different kinds of minerals and according to the soluting ability the order for four minerals is: coal powder> purple argillaceous rock> chlorite> orthoclase. 结果表明,硅酸盐细菌对不同类型矿粉的解钾能力不同:炭渣>石骨子>绿豆岩>正长石。