PURPOSE: A method for manufacturing a fertilizer composition including natural mineral materials is provided to enable the manufacture of a fertilizer composition through a simple facility, and to prevent the acidification of soil. CONSTITUTION: A method for manufacturing a fertilizer composition including natural mineral materials comprises the steps of: pulverizing vermiculite to form a pulverized solid; mixing the pulverized solid with water; adding sulfuric acids to the mixture to form a mixed solution; stirring and aging the mixed solution; and filtering the mixed solution, extracting and separating a mineral component-containing solution.
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