鉀细菌是一类能分解磷、鉀矿物并稍有固氮能力的微生物。过去,仅少数科研单位对它进行过研究。近几年来,我省由于生产水平不断提高,氮、磷、肥料施用量急剧增加,使土壤中可供利用的鉀素相对降低,以致出現水稻早 Potassium bacteria are a class of microorganisms that decompose phosphorus and potassium minerals and have a slightly nitrogen-fixing ability. In the past, only a few research institutes carried out research on it. In recent years, due to the continuous improvement of production level in our province, the application of nitrogen, phosphorus and fertilizers increased sharply so that the availability of potassium in the soil decreased relatively, resulting in the occurrence of early rice