A kind of suspending agent and the method for using suspending agent to solve the stratification of high-concentration liquid fertilizer

Abstract

The invention discloses a suspending agent and a method for solving stratification of a high-concentration liquid fertilizer by utilizing the same. The method comprises the steps: firstly, preparing a certain amount of a suspending mother liquid composed of a nitrogen fertilizer and the suspending agent, carrying out high-speed uniform stirring during the preparation process, then adding the remaining amount of a phosphate fertilizer, a potash fertilizer and trace elements, again carrying out high-speed stirring, then emulsifying the mixed fertilizer mother liquid in an emulsifying pump, and finally forming a uniform and stable liquid fertilizer product. Through integrative action of the suspending agent and a stirrer, fertilizer nutrients can be fully suspended in the fertilizer mother liquid and stratification is not generated, the liquid fertilizer can be kept for a long time and does not generate quality problems, and the labor force and the time cost are saved for farmer fertilization, wherein liquid fertilizer stratification increases the labor force for pouring out the fertilizer during farmer fertilization, the operation is more complicated, and the time of the fertilizer to be dissolved in water is prolonged after stratification and agglomeration.

Description

technical field [0001] The invention belongs to the technical field of agricultural production, and in particular relates to a liquid fertilizer anti-stratification technology, in particular to a suspending agent and a method for solving the stratification of high-concentration liquid fertilizer by using the suspending agent. Background technique [0002] Due to the advantages of low production cost, high nutrient content, easy compounding, direct absorption by crops, convenient formula fertilization and mechanized fertilization, liquid fertilizer has attracted more and more attention. Liquid water-soluble fertilizer products have the characteristics of new fertilizer development. The advantages of liquid fertilizers are mainly reflected in low production cost, low investment, no dust, no smoke during production and transportation, convenient application, direct absorption by crops, precise fertilization, convenient application, water saving, reduced manpower expenditure and ...

AI Technical Summary

Problems solved by technology

The storage and transportation of liquid fertilizers must use specific containers and transportation vehicles, which are expensive and require the preparation of special application tools, etc.

At the same time, under the previous conditions, it is only suitable for on-site production and application, and the procurement cost is generally higher than that of solid fertilizers. Some products or mixtures may have salting-out or precipitation, which are all constraints on the development of liquid fertilizers.

[0005] In solving the layering problem of liquid fertilizers, the United States mainly adopts adding a part of colloidal clay minerals, such as bentonite, white clay, attapulgite, sepiolite, etc., with an amount of about 1% to 2%, and making the suspension at 28°C When the viscosity is controlled in the range of 300-700mPa·s, this method is applied to high-concentration liquid fertilizer and compound fertilizer for a short period of time, and the fertilizer must be used up in a short period of time (15 days), and stratified agglomeration will occur if it is placed for a long time; , mainly by adding high-viscosity and high-molecular-weight cellulose substances, such as the patent 200910192150.6 suspension type liquid compound fertilizer and its preparation method, adding 4-12% hydroxyethyl cellulose to increase the viscosity of the suspension. This method adds The proportion of cellulose is relatively large, the cost is too high, and the effect is not as good as the composite suspending agent

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