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根据前人直接应用含钾岩石的成功经验；土壤中供钾矿物和含钾岩石中含钾矿物的相似性；土壤中含钾矿物的有效性和含钾岩石供钾潜力的研究结果，本文论述了组成矿物主要为云母类矿物（黑云母、白云母、海绿石、伊利石）的含钾岩石，农业直接应用可能具有良好效果。并根据笔者对贵州各类以白云母、伊利石（水云母）为主要矿物的水云母粘土岩、页岩、粉砂岩和火山凝灰岩（绿豆岩）的供钾潜力和释钾能力的研究结果，发现彼此供钾潜力相差悬殊，指出对含钾岩石进行农业地质开发研究，寻找勘探出供钾潜力大的含钾岩石，直接应用于农业，将对大农业的发展具有重要意义。
Based on the successful experience of predecessors using potassium-bearing rocks directly, the similarities between the potassium-bearing minerals in the soil and the potassium-bearing minerals in the potash-bearing rocks, the validity of potassium-bearing minerals in the soil and the potential of potassium-bearing rocks for potassium supply, The composition of the main minerals for the mica minerals (biotite, muscovite, glauconite, illite) potassium-containing rocks, direct application of agriculture may have good results. According to the research results of potassium supply potential and potassium releasing ability of various types of aqua mica, shale, siltstone and volcanic tuff (mungbean) in Guizhou with various types of muscovite and illite (water mica) It is found that there is a great disparity between the potentials of potassium supply and each other. It is pointed out that it is of great significance for the development of large-scale agriculture that direct application of the potassium-bearing rocks to agricultural geology exploration and exploration for potassium-bearing rocks with great potential for potassium supply.