It is white or grey granular which dissolves in water absolutely. It is a new type high0efficient compound fertilizer. It contains nitrogen and calcium, and also supplies nitrogen to plant quickly. The nutrition is more than ammonium nitrate, and can be absorbed by the plant directly. This product is a neutral fertilizer and can improve the quality of soil. It can change the Ph value of the soil, loosen the soil, reduce the density of active aluminum. Meanwhile, it offers water soluble calcium and improves the resistance to the disease of plant.