Soil improvement slow-release compound fertilizer and preparation method thereof

Abstract

The invention relates to a soil improvement slow-release compound fertilizer and a preparation method thereof. The compound fertilizer is prepared from the following raw materials by weight: 30-40 parts of zeolite, 10-15 parts of corn cob, 10-15 parts of wheat straw, 5-10 parts of animal dung, 5-8 parts of plant ash, 9-11 parts of oyster powder, 10-13 parts of seaweed meal, 3-5 parts of humic acid, 7-10 parts of urea, 8-10 parts of alginate, 3-5 parts of potassium sulfate, 3-5 parts of ammonium dihydrogen phosphate, 3-5 parts of potassium phosphate, 3-5 parts of sodium silicate, 3-5 parts of calcium chloride, 3-5 parts of potassium nitrate, 1-2 parts of trace elements, 1-2 parts of vitamin, and 10-15 parts of amino acid powder. The soil improvement slow-release compound fertilizer provided by the invention has a simple making method, can improve soil, maintain soil water content, activate rapid propagation of soil microorganisms, and reduce soil saline-alkali harms, also can control slow release of the elements, and the coating material is biodegradable, thus protecting the environment.

Description

technical field [0001] The invention belongs to the field of chemical fertilizer production, and in particular relates to a slow-release compound fertilizer for soil improvement and a preparation method thereof. Background technique [0002] my country is a big agricultural country, and it is also a big country in the production and use of chemical fertilizers. The domestic use of chemical fertilizers has increased from less than 0.1% in 1949 to the vast majority of crops currently being planted with chemical fertilizers. At present, my country's total output and application of chemical fertilizers rank first in the world. . The status of fertilizers in rice production is very important, especially chemical fertilizers, which play a pivotal role in increasing agricultural production. The input of chemical fertilizers is increasing year by year. However, at present, the approximate range of the utilization rate of chemical fertilizers in the current season in my country's rice...

AI Technical Summary

Problems solved by technology

However, the amount of farmyard manure cannot meet the requirements of large-scale use, and traditional farmyard manure will cause problems such as the spread of pathogenic microorganisms and parasites (eggs), and nitrogen loss due to incomplete accumulation and fermentation

Moreover, the existing fertilizers mainly focus on increasing yield or slow-release and long-acting, and their functions are relatively single

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