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Preparation method of organic fertilizer rich in chitin

A chitin and organic fertilizer technology is applied in the field of preparation of chitin-rich organic fertilizers, can solve problems such as high cost and environmental pollution, and achieve the effects of increasing the yield of vermicompost, improving the agricultural ecological environment, and being beneficial to growth.

Active Publication Date: 2014-06-18
BEIJING WOKEFENG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the preparation of chitin-containing fertilizers is usually by directly adding chitin to the raw materials, which is expensive, and the current extraction process of chitin has a certain degree of pollution to the environment.

Method used

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  • Preparation method of organic fertilizer rich in chitin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A kind of preparation method of the organic fertilizer that is rich in chitin of the present embodiment, carries out according to the following steps:

[0049] 1. Dry the insect shells and shrimp and crab shells, and crush them into 20-40 mesh powder;

[0050] 2. Mix 225kg of cow dung, 75kg of the powder prepared in step 1 and 1kg of BFA, adjust the C / N to 20, the moisture content to 80%, and stack and ferment at 70°C for 15 days;

[0051] 3. Raise earthworms with the base material fermented in step 2, add water in good time to keep the moisture content of the base material at 60%, and the temperature is 20°C;

[0052] 4. Harvest the vermicompost mixture on the upper layer of the base material once a week and dry it;

[0053] 5. Pass the dry vermicompost mixture obtained in step 4 through a sieve with an aperture of 9.25mm, and the surface of the sieve is base material that has not been fully fermented or eaten by earthworms; then pass through a sieve with an aperture ...

Embodiment 2

[0056] A kind of preparation method of the organic fertilizer that is rich in chitin of the present embodiment, carries out according to the following steps:

[0057] 1. Dry the insect shells and shrimp and crab shells, and crush them into 20-40 mesh powder;

[0058] 2. Mix 325kg of cow dung, 70kg of the powder obtained in step 1 and 1kg of BFA, adjust the C / N to 30, the moisture content to 60%, and stack and ferment at 45°C for 25 days;

[0059] 3. Raise earthworms with the base material fermented in step 2, add water in good time to keep the moisture content of the base material at 50%, and the temperature is 25°C;

[0060] 4. Harvest the vermicompost mixture on the upper layer of the base material once a week and dry it;

[0061] 5. Pass the dry vermicompost mixture obtained in step 4 through a sieve with an aperture of 9.25mm, and the surface of the sieve is base material that has not been fully fermented or eaten by earthworms; then pass through a sieve with an aperture ...

Embodiment 3

[0064] A kind of preparation method of the organic fertilizer that is rich in chitin of the present embodiment, carries out according to the following steps:

[0065] 1. Dry the insect shells and shrimp and crab shells, and crush them into 20-40 mesh powder;

[0066] 2. Mix 375kg of cow dung, 80kg of the powder prepared in step 1 and 1kg of BFA, adjust the C / N to 25, the moisture content to 70%, and stack and ferment at 30°C for 30 days;

[0067] 3. Raise earthworms with the base material fermented in step 2, add water in good time to keep the moisture content of the base material at 55%, and the temperature is 22°C;

[0068] 4. Harvest the vermicompost mixture on the upper layer of the base material once a week and dry it;

[0069] 5. Pass the dry vermicompost mixture obtained in step 4 through a sieve with an aperture of 9.25mm, and the surface of the sieve is base material that has not been fully fermented or eaten by earthworms; then pass through a sieve with an aperture ...

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Abstract

The invention relates to a preparation method of an organic fertilizer rich in chitin, particularly relates to a method for preparing a fertilizer from wastes or residues, more particularly relates to a method for preparing a fertilizer rich in chitin through the combination of microbiological decomposition and an earthworm digestive system, and aims to provide a preparation method for an organic fertilizer with high chitin content, wherein the preparation method is free of specially extracting chitin, low in production cost and little in environment pollution. The preparation method of the organic fertilizer rich in chitin comprises the following steps of crushing shells of insects or crustaceans; composting to ferment a base material; feeding earthworms and collecting vermicompost; collecting vermicompost fertilizer rich in chitin. The preparation method provided by the invention is safe, simple and convenient in operation, low in production cost and little in environment pollution; the organic fertilizer prepared by the invention is high in chitin content, capable of effectively improving a soil structure and improving the qualities of agricultural products, and free of environment pollution in an applying process; in addition, nutrients in the organic fertilizer are easily absorbed by plants. The preparation method is used for the technical field of fertilizer production.

Description

technical field [0001] The invention relates to a method for making fertilizer with waste or residue, in particular to a method for preparing chitin-rich fertilizer by combining microbial decomposition and earthworm digestive system. Background technique [0002] Chitin, also known as chitin and chitosan, is a polymer polysaccharide with a chemical structure similar to fiber. It is known as the sixth essential element of life for the human body after sugar, protein, fat, vitamins, and minerals. It exists widely. In the hard shells of insects and crustaceans and the cell walls of fungi. [0003] Chitin fertilizer not only improves the yield, internal quality and external commerciality of crops, but also reduces the amount of pesticides and fertilizers and produces huge ecological benefits, such as safety, environmental protection, and pollution-free. Its main effects are manifested in the following aspects: improving soil, fertilizing soil, improving nutrient utilization rat...

Claims

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Application Information

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IPC IPC(8): C05F3/00
CPCY02A40/20
Inventor 任科宇
Owner BEIJING WOKEFENG TECH DEV
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