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 citrus peel, composted and fermented by microbial liquid inoculum, finally adding urea, monoammonium phosphate, potassium sulfate ingredients, and then killing insects and sterilizing, and then granulating, drying, cooling, Screening, coating, and packaging to produce an organic compound fertilizer rich in organic matter, with N, P, and K contents meeting the optimal ratio requirements for citrus growth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The preparation of embodiment 1 liquid microbial bacterial agent

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

[0056] The well-preserved Aspergillus niger CGMCC No.7927 slant strains were activated by the strains and the first-, second-, and third-level liquid seeds and seed tanks were gradually expanded to obtain liquid seeds, which were inserted into the fermenter with 6% inoculum. The culture temperature is 30°C, the stirring speed is 400rpm, the ventilation rate (V / V) is 1:2, and the culture time is 12h; then slowly cool down to 12°C at a cooling rate of 2°C / h, and cultivate at a constant temperature for 18h; continue to cool at a rate of 2°C / h Slowly lower the temperature to 3°C. At this time, add the liquid seeds to the fermenter with 4% inoculation amount, and cultivate at a constant temperature for 24 hours; finally, slowly raise the temperature to 12°C at a heating rate of 2°C / h, and cultivate at a constant t...

Embodiment 2

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

[0072] (1) Citrus peel for acid reduction

[0073] Take citrus peels with 50% of the total mass of organic compound fertilizer raw materials, crush them to a particle size of 3mm, add 0.5% of citrus mass by acid-reducing yeast, and ferment at room temperature for 72 hours, stirring once every 12 hours, until the pH value of citrus peels drops to 6;

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

[0075] The acid-reduced yeast is composed of the expansion culture fermentation liquid of Pichia pastoris, fission yeast and wine yeast; the concentration of yeast cells in the expansion culture fermentation liquid of Pichia pastoris, fission yeast and wine yeast is respectively 9.0×10 8 pcs / mL, 6.0x10 8 / mL and 8.0x10 7 Individual / mL; The mixed mass ratio of Pichia pastoris, fiss...

Embodiment 3

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

[0098] (1) Citrus peel for acid reduction

[0099] Take citrus peels with 55% of the total mass of organic compound fertilizer raw materials, crush them to a particle size of 4 mm, add 0.8% of the citrus mass by acid-reducing yeast and ferment at room temperature for 36 hours, and stir once every 12 hours until the pH value of the citrus peels drops to 6;

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

[0101] The acid-reduced yeast is composed of the expansion culture fermentation liquid of Pichia pastoris, fission yeast and wine yeast; the concentration of yeast cells in the expansion culture fermentation liquid of Pichia pastoris, fission yeast and wine yeast is respectively 9.0×10 8 pcs / mL, 5.0x10 8 -6.0x10 8 / mL and 7.0x10 7 -8.0x10 7 Individual / mL; The mixed mass r...

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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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