Ammonium Chloride (NH₄Cl) is a white crystalline inorganic salt, a vital nitrogen fertilizer with 25-26% available nitrogen for agricultural use. It supplies rapid-acting ammonium nitrogen, easily absorbed by crops to fuel vegetative growth, improve root development and enhance stress resistance. Suitable for rice, wheat, cotton and other field crops, it works well in acidic and neutral soils, and can be used as base or top dressing. It also acts as a nitrogen source in compound fertilizer production, with stable chemical properties, easy storage and low transportation costs, making it a cost-effective fertilizer for agricultural production.