Ingredients: ≥16% urea ammonium nitrogen ≥5% ≥10% sulfur, magnesium, calcium ≥8% ≥6%, double enzyme polypeptide amount. Specifications: 40 kg / bag Dosage: 30-40 kg per acre topdressing, the right amount plus the amount of cash crops. Effect: 1, high nutrient utilization: urea utilization was 33%, while the dual enzyme zinc fertilizer is urea utilization over two times. 2, instant long-lasting: available nitrogen mention seedlings seedling, the latter not guarantee long-term nitrogen Tuofei. 3, fill enzyme disease prevention: to improve resistance to prevent premature aging. Wilt rice blast, albino corn, small rods disease, all disease of wheat fruit cracking sick, deformed fruit inhibited. 4, comprehensive nutrition: the role of the enzyme, so that what is missing what plants plant uptake, balanced fertilization. Note: only fertilizer application, avoidance and seeds, seedlings direct contact.