Acid soil improvement fertilizer and preparation method thereof

Abstract

The invention discloses an acid soil improvement fertilizer and a preparation method thereof. The acid soil improvement fertilizer is composed of improvement plant ash, special bacillus subtilis agent, shell calcium powder, high-molecular improving anionic polyacrylamide and microelements containing borax and zinc sulfate. The preparation comprises thoroughly and uniformly mixing the materials above in a mixer and performing physical granulation through an extrusion device. According to the practical situation and through long-term practice research and pilot plant test, the acid soil improvement fertilizer is proved to take effects 1-3 months after application, be capable of improve acid soil, loosen soil, improve soil fertility, improve soil ph and have no damage to other soil properties. Meanwhile, the acid soil improvement fertilizer can rapidly supplement organic matters, nutritious elements such as carbon, calcium, silicon, magnesium and zinc and microbial flora, improve soil permeability and activity of microorganisms, fundamentally improve the microbial chain of soil, reduce volume weight of soil, enhance soil porosity and improve the content of soil organic matters and the activity of the microbial flora. Besides, the acid soil improvement fertilizer is low in cost and significant in effect during production application.

Description

technical field [0001] The invention relates to the field of soil fertilizer, in particular to a fertilizer for improving acidic soil and a preparation method. Background technique [0002] In recent decades, the problem of soil acidification of cultivated land around the world has become increasingly serious. According to statistics, the area of ​​soil acidification in my country alone is about 200 million hectares, accounting for more than 23% of the total area of ​​the country; about 8% of the areas with severe soil acidification, The pH value of the soil even reaches 4.0, and the physical and chemical properties and biological characteristics of the soil are seriously damaged. Not only the quality of the crops is extremely poor, but also the production is reduced and the production is lost, which has seriously affected the national food security and people's lives. The main reasons for soil acidification are firstly caused by natural factors, mainly in the red loam and ye...

AI Technical Summary

Problems solved by technology

The improvement of acidic soil must be solved systematically and comprehensively. If there is no link in the operation, the effect will be insignificant or even ineffective. There must be a reasonable and effective formula to complete it at the same time.

Moreover, the cost of the existing method of improving acidic soil is too high, and the effect is too slow, which is also an important factor limiting the investment of the government and farmers.

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