A dual-supply formula of 21% nitrogen and 24% sulfur, granular formulation for pressure and moisture resistance. Utilizing an anti-leaching and crystallization process, nitrogen is released slowly for 50 days, maintaining efficacy even in high temperatures and heavy rainfall. Targeting sulfur deficiency in acidic soils, it provides rapid nitrogen supplementation without burning seedlings, promoting rapid growth in leafy vegetables and increasing tillering in rice. Suitable for mainstream crops such as water spinach, lettuce, and peanuts. Convenient for farmers to apply via broadcast or hole application; compound fertilizer factories can directly use it as a nitrogen and sulfur feedstock for fertilizer formulation. Application costs are only 70% of urea, making it highly cost-effective and suitable for large-scale planting.