Organic compound fertilizer with citrus pomace and preparation method of organic compound fertilizer

A technology of citrus peel and compound fertilizer, which is applied in the field of harmless treatment of citrus peel

Inactive Publication Date: 2014-06-04
重庆圣沛农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to use citrus peels as the main raw material, overcome the defects of the existing citrus peels harmless treatment to prepare organic compound fertilizers, reduce the acidity of citrus peels through microbial fermentation, and then use the compound enzyme preparation Degradation of refractory components such as pectin and cellulose in ci

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Example 1 Preparation of liquid microbial agent

[0055] (1) Preparation of Aspergillus niger CGMCC NO.7927 expansion fermentation broth

[0056] The well-preserved slant strain of Aspergillus niger CGMCC No. 7927 is activated by strains and the first, second and third liquid seeds and seed tanks are gradually expanded to obtain liquid seeds, which are connected to the fermentation tank with 6% inoculum. Cultivation temperature 30℃, stirring speed 400rpm, ventilation (V / V) 1:2, cultivation time 12h; then slowly decrease the temperature to 12℃ at a cooling rate of 2℃ / h, and incubate at a constant temperature for 18h; continue with a cooling rate of 2℃ / h Slowly lower the temperature to 3°C. At this time, add the liquid seeds to the fermentor with 4% inoculum and cultivate for 24 hours at a constant temperature; finally, slowly raise the temperature to 12°C at a heating rate of 2°C / h, and incubate at a constant temperature for 18 hours; continue at 2°C / h h The heating rate is ...

Example Embodiment

[0070] Example 2

[0071] A preparation method of citrus peel organic compound fertilizer, including the following steps:

[0072] (1) Decreasing acidity of citrus peel

[0073] Take 50% of the total mass of the organic compound fertilizer raw materials, pulverize it to a particle size of 3mm, add 0.5% of the citrus mass acid-reducing yeast for 72h at room temperature, turn it every 12h, until the pH value of the citrus peel drops to 6;

[0074] The citrus peel is industrialized citrus waste residue after juice extraction, with a moisture content of 60% and a pH value of 3.8;

[0075] The acid-reducing yeast is composed of the expansion fermentation broth of Pichia pastoris, fission yeast and wine yeast; the yeast cell concentration in the expansion fermentation broth of Pichia pastoris, fission yeast and wine yeast is 9.0×10 respectively 8 Pcs / mL、6.0x10 8 Pcs / mL and 8.0x10 7 Pcs / mL; the mixing mass ratio of the fermentation broth of Pichia pastoris, fission yeast and wine yeast is 5:3:...

Example Embodiment

[0096] Example 3

[0097] A preparation method of citrus peel organic compound fertilizer, including the following steps:

[0098] (1) Decreasing acidity of citrus peel

[0099] Take 55% of the citrus peel residue of the total mass of the organic compound fertilizer raw materials, crush it to a particle size of 4mm, add 0.8% citrus quality acid-reducing yeast to ferment at room temperature for 36 hours, and turn it every 12h until the pH value of the citrus peel residue drops to 6;

[0100] The citrus peel is industrialized citrus waste residue after juice extraction, with a moisture content of 70% and a pH value of 3.8;

[0101] The acid-reducing yeast is composed of the expansion fermentation broth of Pichia pastoris, fission yeast and wine yeast; the yeast cell concentration in the expansion fermentation broth of Pichia pastoris, fission yeast and wine yeast is 9.0×10 respectively 8 Pcs / mL、5.0x10 8 -6.0x10 8 Pcs / mL and 7.0x10 7 -8.0x10 7 Pcs / mL; the mixing mass ratio of the fermentat...

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PUM

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Abstract

The invention discloses an organic compound fertilizer with citrus pomace and a preparation method of the organic compound fertilizer and belongs to the technical field of preparation of organic fertilizers. The preparation method comprises the following steps of reducing the acidity of the citrus pomace by adopting microbial fermentation for deacidification, decomposing nondegradable components such as pectin and cellulose in the citrus pomace by adopting a compound-enzyme preparation, carrying out composting fermentation by microbial liquid inoculant, finally adding batched materials such as urea, monoammonium phosphate and potassium sulfate, and carrying out insect killing, sterilization, granulation, drying, cooling, sieving, coating and packaging to prepare the organic compound fertilizer with rich organic matter and the contents of N, P and K meeting the need of the optimal proportion for growth of citrus. The organic compound fertilizer and the preparation method disclosed by the invention have the advantages that deacidifying yeast is adopted to reduce the acidity of the citrus pomace and replace the existing method for adding quick lime to carry out deacidification, calcification and alkalization of soil are effectively prevented, the content of the compound fertilizer is more than 55%, the pH value is 6.5-8.5, the total contents of N, P and K are more than or equal to 8%, the water content is less than or equal to 20%, the contents of trace elements such as B, Zn and Mg are rich, and the other quality indexes are superior to national standard of organic fertilizer respectively.

Description

technical field [0001] The invention relates to the harmless treatment of citrus peels, in particular to an organic compound fertilizer of citrus peels and a preparation method thereof. Background technique [0002] my country is the world's largest producer of citrus. In addition to direct consumption of citrus, a considerable part of citrus is used for juice processing, resulting in a large amount of citrus peel. Currently, citrus peels are mainly disposed of through simple sanitary landfills. However, the skin dregs are large in size and high in water content. Landfill treatment not only takes up a lot of land, but also produces a large amount of seepage and odor, causing a series of environmental pollution to the surrounding air, soil and water, and seriously affecting people's production. , life and health, the harmless treatment and resource utilization of citrus peels need to be solved urgently. [0003] Citrus peel is rich in water, pectin, cellulose and mineral e...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05F17/00
CPCY02W30/40
Inventor 刘厚平张翠红刘厚奎
Owner 重庆圣沛农业科技有限公司
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