Used as a high-nitrogen fertilizer in agriculture to promote plant growth, especially in nitrogen-deficient soils. It provides both nitrogen and sulfur, essential nutrients for healthy crop development. Commonly applied to lawns, gardens, and commercial crops like corn, wheat, and rice. Also used in water treatment to remove impurities and as a flame retardant in wood products. In laboratories, it serves as a precipitating agent in protein purification through ammonium sulfate fractionation. Additionally, it is used in the production of fire extinguishing agents and in the textile industry for dyeing and printing processes.