Ion retention agent, fruit cracking prevention water-soluble fertilizer and preparation method of water-soluble fertilizer

Abstract

An ion retention agent is composed of citric acid, cetylpyridinium bromide, polyasparagine and sodium lignin sulfonate in a mass ratio of (1-2): (1-3): (2-3): (3-5). A fruit cracking prevention water-soluble fertilizer comprises the ion retention agent. A preparation method of the fruit cracking prevention water-soluble fertilizer comprises the following steps: adding the urea, the industrial monoammonium phosphate, the potassium nitrate, the calcium nitrate, the magnesium sulfate, the ion retention agent and the composite chelated trace elements into a mixing stirrer, and uniformly stirring to obtain the fruit cracking prevention water-soluble fertilizer. The citric acid, the polyaspartic acid and the sodium lignin sulfonate in the ion retention agent interact, Ca<2+> and Mg<2+> in the fertilizer can be complexed, the antagonism problem between elements is effectively reduced while the activity of calcium and magnesium is increased, calcium nutrition is easily absorbed and effectively utilized in the growth process of crops, the fruit cracking of crops can be effectively prevented, and meanwhile, the growth of the crops can be balanced without generating a nutrient deficiency symptom.

Description

technical field [0001] The invention belongs to the field of fertilizers, and in particular relates to an ion retaining agent, an anti-cracking fruit water-soluble fertilizer and a preparation method thereof. Background technique [0002] Citrus fruit cracking is caused by the imbalance between the growth of the peel and the pulp tissue. It is the response of the fruit to the uncoordinated growth of the inside and outside of the fruit under adverse conditions. It is a common physiological disease in the production of citrus. During the swelling growth period, the fruit cracking rate is generally 10% to 20%, and it is as high as 20% to 30% in severe cases. Fruit cracking will directly affect the yield and quality of citrus, and cause huge economic losses to citrus production. Calcium is an essential nutrient element for plants and plays an important role in the growth and development of plants. For example, calcium can form calcium pectate with acid to stabilize the structur...

AI Technical Summary

Problems solved by technology

Nowadays, in order to reduce the incidence of crop cracking, measures such as spraying calcium fertilizer, reasonable pruning, and yield control have been adopted. The effect of reducing the fruit cracking rate is not ideal; and although the operation of spraying calcium fertilizer is relatively simple and easy to master, it needs to strictly control the fertilization period, fertilizer composition and proportion to be effective

At present, many enterprises have developed a variety of calcium-containing fertilizers to reduce the fruit cracking rate, such as patent publications CN111763117A, CN111480650A and CN110922252A, etc., which all mix calcium with other components and spray it on the leaves of plants, but these The inorganic nutrients in calcium-containing fertilizers are low or even do not contain a large number of elements required by plants such as NPK, and these fertilizers are mostly liquid fertilizers, which have high storage and transportation costs, and the salt content in fertilizers is also higher than that of solid fertilizers, which is easy to damage water and fertilizer application equipment

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