Used as a nitrogen fertilizer in agriculture due to its slow-release properties, providing a sustained supply of nitrogen to plants. Commonly applied in turf management and crop production where controlled nitrogen release helps prevent leaching and reduces the risk of plant burn. Also serves as a chemical intermediate in the production of melamine, which is used in polymers, resins, and flame retardants. Additionally, biuret is utilized in analytical chemistry as a standard compound in the biuret test for detecting peptide bonds in proteins; the test employs an alkaline copper(II) sulfate reagent that produces a violet color with biuret or proteins.