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Controlled release fertilizer with high content of biological carbon and preparation method thereof

A technology of controlled-release fertilizer and bio-carbon, which is applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of large waste of raw materials, single controlled-release mechanism, and inability to be directly applied, and achieves low production cost, flexible formulation application, and economical savings. Effects of raw materials and energy consumption

Inactive Publication Date: 2013-02-06
秦征 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are problems such as single controlled release mechanism, large waste of raw materials, high cost, and cannot be directly applied to the existing fertilizer production process

Method used

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  • Controlled release fertilizer with high content of biological carbon and preparation method thereof
  • Controlled release fertilizer with high content of biological carbon and preparation method thereof
  • Controlled release fertilizer with high content of biological carbon and preparation method thereof

Examples

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Effect test

preparation example Construction

[0031] The preparation process of high biological carbon controlled release fertilizer is as follows: figure 2 As shown, it mainly includes two parts:

[0032] 1. Preparation of high biochar controlled release agent:

Embodiment 1

[0034] Mix polyvinyl alcohol, polyvinyl acetic acid, and carbonized formaldehyde cellulose at a weight ratio of 40:40:20 as polymer ingredients, and combine biochar produced by smokeless coking technologies such as orange stalks with calcium bentonite as an adsorbent at a ratio of 90: 10 weight ratio mixing; 0.1% weight ratio of polymer ingredients and 99% weight ratio of biochar and adsorbent mixture, and 0.9% weight ratio of catalyst propylene glycol are thoroughly mixed to make a high biochar slow-release agent, mixed granules The diameter is controlled at 80-100 mesh (grid), and the mixing temperature is 45-65°C.

Embodiment 2

[0036] The cellulose polymer ethlcellalose is used as a polymer ingredient, and the biochar produced by smokeless coking technologies such as orange stalks is mixed with zeolite powder as an adsorbent in a weight ratio of 90:10; the polymer ingredient of 45% by weight and 54.98 % weight ratio of biochar and adsorbent mixture, and 0.02% weight ratio of catalyst ethylene glycol are thoroughly mixed to make a high biochar slow-release agent. The particle size after mixing is controlled at 80-100 mesh (grid), and the mixed The temperature is 45-65°C.

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Abstract

The invention discloses a controlled release fertilizer with high content of biological carbon and a preparation method thereof. The controlled release fertilizer mainly comprises a controlled release agent with high content of biological carbon and a fertilizer, wherein the controlled release agent with high content of biological carbon comprises a polymer, biological carbon, an adsorbent and a catalyst, wherein the weight ratio of the polymer is 0.1-50%, the weight ratio of the biological carbon is 50-90%, the weight ratio of the adsorbent is 1-10%, and the particle size of the controlled release agent is 60-200 meshes. In the method of the invention, by applying the controlled release agent to the formula and the manufacturing process of fertilizer production and further combining the biological carbon with a polymerization micromatrix, the controlled release fertilizer prepared by the polymerization micromatrix with high content of biological carbon has various controlled release mechanisms of nutrient components required for plant growth and can increase the carbon cycle of biological substances, improve the soil and reduce the greenhouse gases in farmlands such as emission of CH4,N2O and the like, thus the controlled release fertilizer is a high-efficiency fertilizer capable of storing carbon in the soil, reducing emission and controlling release.

Description

technical field [0001] The invention relates to a novel fertilizer, in particular to a high biological carbon controlled-release fertilizer and a preparation method thereof. Background technique [0002] Controlled-release fertilizer is to make the compound containing nutrients in the fertilizer release slowly in the soil or the release rate of nutrients can be controlled to a certain extent for the continuous absorption and utilization of crops. [0003] The purpose of using slow-release fertilizers: (1) to reduce the loss of fertilizer nutrients, especially nitrogen in the soil; (2) to reduce the number of fertilization operations, saving labor and costs; (3) to avoid damage to seeds or fertilizers caused by excessive fertilization. Seedling damage. [0004] Traditional fertilizer slow-release and controlled-release technologies mainly use polymer coating (coating) technology (such as spray drying technology). There are problems such as single controlled release mech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
Inventor 秦征陈宇光
Owner 秦征
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