Medium element water-soluble fertilizer Amino acid chelated calcium magnesium boron fertilizer Nitrogen ≥ 110g/L calcium≥ 120g/L magnesium≥ 30g/L Amino acids≥ 120g/L boron≥2g/L1. This product uses the world's leading chelation technology to produce calcium and magnesium fertilizer, no hormones, no residue, is a safe and efficient supplement product. 2. This product contains high-efficiency penetrant to quickly replenish calcium and magnesium, improve nutrient absorption and utilization, and promote the healthy growth of crops. 3. The ratio of calcium, magnesium to gold can correct physiological diseases such as cracks, bitter pox, water heart disease, black heart disease, umbilical rot and other physiological diseases caused by calcium deficiency.