Stress-resistant and disease-preventive multifunctional water-soluble fertilizer and method for preparing same

The invention discloses a stress-resistant and disease-preventive multifunctional water-soluble fertilizer. The stress-resistant and disease-preventive multifunctional water-soluble fertilizer comprises, by weight, 25-35 parts of ammonium nitrate, 10-20 parts of urea, 20-30 parts of potassium dihydrogen phosphate, 1-5 parts of potassium fulvic acid, 10-15 parts of sodium humate, 10-15 parts of potassium hydroxide, 2-4 parts of citric acid, 3-6 parts of EDTA (ethylene diamine tetraacetic acid)-disodium, 5-10 parts of KOM, 2-5 parts of sodium gluconate, 0.5-1.2 parts of copper sulfate, 0.5-1 part of boric acid, 0.5-1.5 parts of magnesium sulfate, 0.5-1.5 parts of chitosan oligosaccharides, 0-1.5 parts of anti-blocking agents, 1-30 parts of auxiliaries, 0.1-1 part of defoaming agents and 800-1000 parts of water. The invention further discloses a method for preparing the stress-resistant and disease-preventive multifunctional water-soluble fertilizer. The stress-resistant and disease-preventive multifunctional wa