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近年来,随着我们农业生产的不断发展,钾肥对提高农作物产量的作用也日益显著,因而对钾肥的需用量愈来愈大。各地土壤中的全钾含量一般在1～2%,比土壤中的氮、磷含量常常高10—20倍。可是这些钾素肥料的绝大部分,都是以长石、云母等硅酸盐形态存在,不能被农作物吸收利用。在当前钾肥的供应还远不能满足农业生产发展需要的情况下,研究钾细菌分解硅酸盐以释放土壤的钾素营养,非常必要。今年来在这方面已经取得了一定的进展。
In recent years, with the continuous development of our agricultural production, the role of potash on the improvement of crop yield has also become increasingly prominent. Therefore, the demand for potash fertilizer is getting larger and larger. The total potassium content in soils is generally 1-2%, which is 10-20 times higher than that of soil. However, most of these potassium fertilizers are based on feldspar, mica and other silicate forms, can not be absorbed by crops. In the current supply of potash is still far from meeting the needs of agricultural production development, the study of potassium bacteria decomposition of silicate to release soil potassium nutrition, it is necessary. Some progress has been made in this regard this year.