SCU Fertilizer (Sulfur Coated Urea) SCU Fertilizer purity 99% SCU Fertilizer granular SCU Fertilizer packing 40Kg or 50kg. As a hi-tech controlled/slow release fertilizer, Sulfur coated urea (SCU) has both effects of nitrogen and sulfur fertilizers. It is being used in rice, wheat, corn, vegetable, bamboo, fruit and garden with such features as fertilizer-saving, labor-saving, output-increasing, ...