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

Abstract

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 water-soluble fertilizer and the method have the advantages that the potassium fulvic acid and the chitosan oligosaccharides in the stress-resistant and disease-preventive multifunctional water-soluble fertilizer are effectively compounded with one another, accordingly, the disease prevention and the stress resistance of plants can be enhanced, and the stress-resistant and disease-preventive multifunctional water-soluble fertilizer further has yield increase and high-quality functions.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a multifunctional water-soluble fertilizer with stress resistance and disease prevention and a preparation method thereof. Background technique [0002] While agricultural production is becoming more and more modernized, it is also facing various prominent problems. First, there is a large amount of investment in chemical fertilizers and pesticides. Although chemical fertilizers and pesticides are constantly being updated, the selective resistance of diseases and insect pests is also becoming more and more prominent. Eventually, it may The use of larger doses of chemical fertilizers and pesticides has not only increased the cost of farmers' planting, but also caused serious environmental pollution. In 2016, the state proposed the basic policy of zero growth of chemical fertilizers and pesticides, which not only put forward new requirements for the amount and use technology of...

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Problems solved by technology

[0005] However, when developing this kind of water-soluble fertilizer with high-concentration complete nutrition plus chitosan and fulvic acid formula, the following challenges are still faced at present: First, when organic matter such as fulvic acid is introduced into the water-soluble fertilizer, it is easy to appear Problems such as uneven mixing and serious moisture absorption have seriously restricted the application and development of fulvic acid in water-soluble fertilizers; second, crops are inevitably attacked by diseases and insect pests during the growth process, and it is necessary to overcome the common "toxic" side effects of traditional pesticides The third is that due to the current normalization of extreme climates, natural disasters are becoming more and more frequent, and there are various adversities such as hot and dry winds, droughts, floods, high temperature and low temperature, etc. that attack crops, and the disaster resistance performance of crops needs to meet higher requirements

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