This product raw material origin to FuNiu mountains medical stone, rock phosphate, potassium feldspar, zeolite, silica, stone I am tamino, lapis lazuli and other 20 kinds of minerals, rich in potassium, phosphorus, calcium, magnesium, silicon, iron, zinc, manganese, boron, selenium, molybdenum and other 55 kinds of mineral elements, covers the crops need all except nitrogen nutrient elements. & have spent Product features: resistance to continuous cropping, root rot, acid and alkali.