It can completely replace urea and is the development trend of nitrogen fertilizer in the future. With large leaves, spikes, sticks and fruits, the traditional nitrogen fertilizer in the market has a single nutrient and low crop absorption rate. The long-term use of a single nitrogen fertilizer in the soil has resulted in soil hardening and serious fertilizer damage. The use of nitrogen fertilizer can improve the aggregate structure and increase the number of colloids. The soil has stronger ability to keep water and fertilizer!