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Low-temperature-resistant straw fermentation inoculant and preparation method thereof

A technology for fermenting bacterial agents and straws, which is applied in the field of straw fermenting bacterial agents and its preparation, can solve the problems of incomplete fermentation of straws, and achieve the effect of low cost and simple operation

Pending Publication Date: 2021-12-07
黑龙江省农业科学院植物保护研究所
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problem of incomplete straw fermentation in low temperature environment

Method used

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  • Low-temperature-resistant straw fermentation inoculant and preparation method thereof
  • Low-temperature-resistant straw fermentation inoculant and preparation method thereof
  • Low-temperature-resistant straw fermentation inoculant and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] 1. Screening of bacterial strains and determination of their disintegration force on filter paper strips

[0034] Strain screening and cultivation: collect rotten leaves under the forest, rotten straw in the field, rotten cow dung, and natural fermented straw compost as isolated samples, and use the straw fishing separation method to separate filamentous fungi; use the enrichment method to separate bacteria and put nematodes. Through long-term screening and low-temperature domestication and breeding, six strains were obtained, namely NH1 Saccharomycescerevisiae, NH2 lactic acid bacteria, NH3 Bacillus subtilis, NH4 photosynthetic bacteria (Photosynthetic Bacteria), NH5 actinomycete (Actinomycete, NH6 Kangshi wood Mold (Trichodermakoningii). The screened strains were purified and inoculated into respective appropriate media for proliferation and culture.

[0035] The optimal combination of Saccharomyces cerevisiae, lactic acid bacteria, Bacillus subtilis, photosynthetic ...

Embodiment 2

[0046] Embodiment 2. application of fermentation agent

[0047] The mass ratio of straw and livestock manure is 2:1 in the straw and the mixture of straw and livestock and poultry manure, and it is transformed into decomposed organic products through solid fermentation. The fermentation of the technical product formula bacterial agent is mainly done in large piles of more than 50 tons to prevent air-drying and freezing through to prevent fermentation. Fermentation bacteria are added in the proportion of 5 / 1000 of the total mass, the water content of the straw is adjusted to about 65%, and the straw is compacted and fermented. Hot spot fermentation is required for winter fermentation, that is, 100 kg of rice husk powder is fermented first, made into hot spot bags, and placed in the center of the straw fermentation pile to guide fermentation. After about 40-50 days of fermentation, the pile is turned over, and the unfermented straw in the outer layer is turned over to the insid...

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Abstract

The invention discloses a low-temperature-resistant straw fermentation inoculant and a preparation method thereof, and belongs to the technical field of fermentation inoculants. The technical problem that straw fermentation is not thorough in a low-temperature environment is solved. The invention provides a straw fermentation inoculant. The straw fermentation inoculant is prepared from the following components: saccharomyces cerevisiae, lactic acid bacteria, bacillus subtilis, photosynthetic bacteria, actinomycetes and trichoderma koningii. The straw fermentation inoculant provided by the invention can complete straw composting fermentation at the low temperature of-20 DEG C to 15 DEG C, can complete fermentation for about 2-3 months under the low-temperature condition of spring and autumn, it is simple to operate and low in cost, and can be operated in fields without crushing and building fermentation pools for rice straw composting.

Description

technical field [0001] The invention belongs to the technical field of fermentation bacterial agents, and in particular relates to a low-temperature-resistant straw fermentation bacterial agent and a preparation method thereof. Background technique [0002] Northeast China is the largest corn producing area in my country, with a huge amount of straw harvested. Burning straw in late autumn and early spring is the most common and convenient way for farmers to dispose of straw. The proportion of direct return of corn stalks in this area is only 30.9%, which is far lower than the national average. A large number of straw resources are discarded or incinerated, which not only brings environmental problems, but also leads to waste of resources. [0003] Straw decomposing and returning to the field is due to the rapid drop in temperature after the harvest of autumn corn in Northeast China. Currently, straw-decomposing bacteria cannot complete fermentation under low temperature co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/14C12N1/20C05F15/00C05F17/20C12R1/865C12R1/125C12R1/01C12R1/885C12R1/04
CPCC12N1/14C12N1/20C05F3/00C05F17/20C05F11/00C05F11/08Y02W30/40
Inventor 李宝英翟喜海潘亚清宋伟丰焦占力
Owner 黑龙江省农业科学院植物保护研究所
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