In the agricultural sector, Sulphur Coated Urea is largely used to lessen fertiliser drawbacks such crop burn. In essence, they are controlled-release fertilisers made by covering hot urea with molten sulphur polyurethane oil. They are specialist fertilisers with coatings made of waxes or polymers that release nutrients gradually. They are commonly utilised in nurseries, golf courses, horticulture, greenhouses, professional lawn care, and grass management.

The process of coating a heated organic compound with liquid sulphur polyurethane oil or crystalline wax results in Sulphur Coated Urea, a controlled release plant food. The ideal quantitative relationship has about 20% sulphur and 30%–40% gas. Specialized plant food known as sulfur-coated organic compound is covered in a compound or wither wax and releases nutrients gradually.

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