Dual-control liquid slow-release nitrogen fertilizer 35-0-0 Calcium≥ 350g/L ，Carbon Active Small Molecule Organic Carbon ≥ 0.05g/L USA and Germany dual-control slow release technology Origin of raw materials: United States1. This product is produced by the world's leading carbon active small molecule technology, which is a high-efficiency liquid slow-release nitrogen fertilizer with both fast-acting and slow-acting characteristics, unique methyleneurea and carbon-active small molecule organic carbon additives, which effectively improves nutrient absorption and utilization efficiency, initiates crop self-defense mechanism, promotes gene expression, stimulates growth potential, and improves yield and quality. 2. This product can quickly replenish nitrogen and relieve adversity stress, promote stem and leaf growth, and enhance root vitality. Low salt index, safer to use. After application, it reaches the crop tissue in 6 hours, works in 24 hours and is valid for 50-60 days.