Charcoal matrix compound fertilizer and preparation method thereof

Abstract

The invention relates to a charcoal matrix compound fertilizer and a preparation method thereof and solves the problems that existing charcoal base fertilizer preparation is tedious, the cost is high, the fertilizer utilization efficiency is low and the energy consumption is high in the straw charcoal powder processing process and the pollution in the preparation process is serious. The fertilizer is formed by carbomite, calcium superphosphate or diammonium phosphate, potassium chloride, bentonite, microelements, water, a binder and straw charcoal; the preparation method comprises the steps that one, the charcoal is smashed; two, urea, the diammonium phosphate and the potassium chloride are taken out, smashed and mixed with the straw charcoal, the bentonite, the microelements and the binder and put into a mixer; three, pelleting and drying are performed; four, the urea, the diammonium phosphate and the potassium chloride are mixed. According to the fertilizer, the plant growth and development can be promoted, the production and the income are increased, release of nitrogen, phosphorus and potassium is slowed, and the valid time limit of the fertilizer is prolonged. The method is applicable to preparation of charcoal matrix compound fertilizers.

Description

technical field [0001] The invention relates to a biochar matrix compound fertilizer and a preparation method thereof. Background technique [0002] As an important by-product of agricultural production, straw contains a large amount of organic matter, a certain amount of nutrients such as nitrogen, phosphorus, potassium and trace elements, and is one of the important organic fertilizer sources for agricultural production. According to statistics, my country's grain crop straw is still the main type of crop straw. Among them, rice straw, corn straw and wheat straw are the three most productive crop straws in China. At present, the utilization rate of straw in our country is only 75%, and the rest of the straw is abandoned or burned. Most of the straw used is used as energy for life in rural areas, and is mainly burned directly; the process of straw burning not only pollutes the air environment, and even cause fires and traffic accidents. Therefore, how to utilize crop sta...

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Problems solved by technology

[0004] In order to solve the problems of cumbersome preparation process, high processing cost, poor fertilizer particle granulation effect, low chemical fertilizer utilization efficiency, high energy consumption in the processing process of straw biochar powder and serious pollution in the preparation process, the present invention proposes a Biochar matrix compound fertilizer and preparation method thereof;

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