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Amino acid polypeptide water-soluble fertilizer and preparation method thereof

A water-soluble fertilizer and amino acid technology, applied in the direction of nitrogen fertilizer, can solve the problems of low organic nitrogen/inorganic nitrogen ratio and low recovery rate, and achieve the effects of promoting germination, increasing yield, and high biotransformation efficiency

Inactive Publication Date: 2019-05-03
BIOGAS SCI RES INST MIN OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a bacterial enzyme joint treatment of keratin substances in order to solve the problems of low recovery rate of protein nitrogen such as polypeptide protein and amino acid, and low ratio of organic nitrogen / inorganic nitrogen in the process of converting keratin substances into organic fertilizers. , so as to prepare a method of amino acid polypeptide water-soluble fertilizer, aiming to realize the harmless and high-value utilization of keratin resources

Method used

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  • Amino acid polypeptide water-soluble fertilizer and preparation method thereof
  • Amino acid polypeptide water-soluble fertilizer and preparation method thereof
  • Amino acid polypeptide water-soluble fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Cultivate anaerobic keratin-degrading bacteria 18D-TA to obtain fermented seed liquid; mix feather and fermented seed liquid according to the mass / volume ratio of 1:1; culture at 55°C for 24h; keep warm at 85°C for 6h; collect the fermented liquid Prepare amino acid polypeptide water-soluble fertilizer. After testing, the water-soluble fertilizer is rich in free amino acids, polypeptide proteins, organic acids and other nutritional components required by plants. The amino acid content is 30g / L, and the soluble protein content is 16.9g / L ( figure 1 ).

Embodiment 2

[0044] The obtained amino acid polypeptide water-soluble fertilizer of the present invention is respectively diluted 10-100 times to soak seeds, detects seed germination rate and germination rate, the result is as follows figure 2 As shown, it was found that the amino acid polypeptide water-soluble fertilizer diluted 20-80 times can significantly improve the germination rate and germination rate of seeds.

Embodiment 3

[0046] Taking eggplant and pepper as fertilization objects, the obtained amino acid polypeptide water-soluble fertilizer was diluted 50 times, and sprayed on the leaves of the plants at the seedling stage, flowering stage and fruit-setting stage of the plants respectively, and the growth-promoting effect of the amino acid polypeptide water-soluble fertilizer was evaluated. The frequency of fertilization is 1 or 2 times during the growth period. One time of fertilization at the seedling stage was recorded as A1, and two times of fertilization was recorded as A2; one time of fertilization at the seedling and flowering stages was recorded as B1, and two times of fertilization at the seedling and flowering stages was recorded as B2; fertilization at the seedling stage, flowering stage and fruit setting stage was all 1 The time was recorded as C1, and the two times of fertilization at the seedling stage, flowering stage and fruit setting stage were recorded as C2 (specific instructi...

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Abstract

The invention discloses an amino acid polypeptide water-soluble fertilizer and a preparation method thereof. The water-soluble fertilizer is formed by carrying out microbial fermentation and proteasehydrolysis on feathers, and contains rich components such as amino acids, polypeptide proteins, organic acids, polyamines, minerals and the like. The preparation method comprises the following main steps: culturing anaerobic keratin degrading bacterium 18D-TA to obtain a fermentation seed solution; mixing feathers with the fermentation seed solution according to a mass / volume ratio of 1:10-1:1; carrying out culturing at a temperature of 55 DEG C for 16-24 hours; preserving heat at a temperature of 85 DEG C for 2-6 hours; and collecting the fermentation liquid to prepare the amino acid polypeptide water-soluble fertilizer. The amino acid polypeptide water-soluble fertilizer provided by the invention is simple in preparation method and mild in fermentation condition, and the water-soluble fertilizer with high content of polypeptide proteins and amino acids can be obtained. The amino acid polypeptide water-soluble fertilizer provided by the invention has good fertilizer efficiency and haseffects of promoting germination of plant seed, development of roots, growth of plants, flowering and fruiting, and the growth promoting effect is remarkable.

Description

technical field [0001] The invention belongs to the technical field of biological amino acid water-soluble fertilizer, in particular to an amino acid polypeptide water-soluble fertilizer and a preparation method thereof. Background technique [0002] my country's livestock and poultry breeding industry produces a huge amount of keratin waste such as animal hair, poultry feathers, claws, hooves, and horns every year. According to statistics, the annual output of poultry feathers alone reaches one million tons, which is the most abundant source of keratin waste. The crude protein content in poultry feathers is usually above 85%, about 2-5% sulfur, 15-18% nitrogen, 3.2% mineral elements and 1.27% lipid, rich in leucine, valine, Threonine, methionine, phenylalanine, tryptophan, lysine and other biologically required amino acids are high-quality amino acid resources and have the potential to develop high-quality amino acid fertilizers. [0003] Feathers contain 90% hard keratin...

Claims

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Application Information

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IPC IPC(8): C05C11/00
Inventor 黄艳马诗淳邓宇
Owner BIOGAS SCI RES INST MIN OF AGRI
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