Sulfur as the main wrapping material, wrapped urea, to achieve slow release of nitrogen fertilizer, also known as sulfur-coated urea. The wrapping material has sulfur or microcrystalline wax, according to the different coating materials, it can be divided into sulfur-coated controlled release fertilizer and resin-coated controlled release fertilizer and other fertilizers.
Sulfur-coated urea has a unique color, belongs to the inorganic coating type of slow-release fertilizer, urea or compound fertilizer surface has a layer of film, the unique sulfur composition, can control the rate of nutrient release, nutrient release continuous and stable, suitable for a variety of soils and crops, to meet the nutritional needs of the crops due to the seasons, to improve the quality and increase yields. Urea or compound fertilizer has a film on the surface, unique sulfur composition, can control the rate of nutrient release.
