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Fermented straw compound microbial agent and preparation method and application thereof

A technology of compound microbial inoculum and straw, applied in the field of organic fertilizer, can solve the problems of environmental pollution, destruction of flora and organic matter, and great harm.

Inactive Publication Date: 2017-03-15
BEIJING DAWEIJIA BIOTECH SHARE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, straw is mainly disposed of by incineration, which not only causes a serious waste of resources, but also causes serious environmental pollution and damages human health. In addition, the high temperature generated during incineration also destroys the bacteria in the land. clusters and organic matter, reducing the fertility of the soil, which is extremely harmful

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment one, the production of composite microbial bacterial agent

[0027] Screening of strains: The strains in the compound bacterial agent are isolated from naturally fermented straw, and the isolated strains have been tested for several times on the fermentation effect of single strains, paired strains and multi-strains on organic fertilizers, and they have been screened to significantly improve For the strains with composting efficiency, a variety of safety screening experiments such as bacterial endotoxin, hemolyticity, cytotoxicity and biogenic amines were carried out. Finally, the composition of the straw organic fertilizer fermentation composite microbial agent was determined as Enterococcus faecium WEI-6, Bacillus subtilis WEI-29, Bacillus licheniformis WEI-30, Lactobacillus plantarum WEI-64 and Saccharomyces cerevisiae WEI-92.

[0028] Strain culture: Enterococcus faecium WEI-6, Bacillus subtilis WEI-29, Bacillus licheniformis WEI-30, Lactobacillus plantar...

Embodiment 2

[0034] Example 2. The operation process of using straw to ferment organic fertilizer on-site in a large-scale pig farm

[0035] The composite microbial bacterial agent prepared in Example 1 is used for on-site fermentation of large-scale pig farms to produce organic fertilizer, and the on-site fermentation preparation method comprises the following steps:

[0036] Preparation of the fermentation tank:

[0037] The fermentation tank is an earth pit with a length of 50 meters, a width of 30 meters and a depth of 2 meters. The straw is packed into bundles with a baler, each bundle is about 600 kg, a total of 400 tons of straw, transported to the fermentation tank, and stacked regularly on the north and south sides, the straw is regularly watered to maintain a certain humidity, and a strip is left in the middle of the fermentation tank The east-west aisle is convenient for vehicles to enter and exit, and a dung storage tank is prepared next to the fermentation tank to accumulate ...

Embodiment 3

[0050] Example 3. Process monitoring of on-site fermentation of organic fertilizer using straw in large-scale pig farms

[0051] 1# Organic Fertilizer: On the second day after the start of fermentation, sporadic hot spots began to appear, and the detected temperature was above 60°C, and the temperature remained at around 30°C in places where there was no obvious heat generation. Afterwards, the hot spots gradually increased, and on the third day, a large number of hot spots began to connect into sheets, and the central temperature reached about 70°C, and the straw was replenished with water every two days. On the 5th day, the temperature began to drop significantly, and then the whole pile was thoroughly mixed with an excavator. On the 2nd day, it began to generate a lot of heat, and on the 8th day, it was turned over again. The high temperature was maintained for 2 days, and then entered the decomposing stage, which lasted about 5 days -10 days, the entire organic fertilizer ...

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PUM

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Abstract

The invention provides a fermented straw compound microbial agent and a preparation method and application thereof. The microbial agent is prepared from enterococcus faecium WEI-6, bacillus subtilis WEI-29, bacillus licheniformis WEI-30, lactobacillus plantarum WEI-64 and brewer's yeast WEI-92; the total amount of bacillus in compound bacterial liquid is 1.5*109 CFU / mL, the total amount of lactic acid bacteria is 2.5*109 CFU / mL, and the total amount of yeast is 2.07*108 CFU / mL; the compound bacterial liquid is inoculated into large-scale compost with straw and livestock excrement as the main raw materials, a certain amount of agricultural waste is added at the same time, and the excellent organic fertilizer can be obtained through fermentation maturity. The bacterial strain of the compound microbial agent is obtained from medium-temperature dominant bacterial community in a natural fermentation process of the straw compost, the bacterial strain can effectively improve an organic fertilizer fermentation production process with the straw and the livestock excrement as the main raw materials after being screened and acclimatized for a long time, and the production efficiency of the organic fertilizer and the innocent treatment effect of the straw and the excrement are improved; thus, the fermented straw compound microbial agent is suitable for livestock and poultry farms with large-scale straw resources nearby to perform innocent treatment and resource utilization of the straw and the cultivation excrement.

Description

[0001] Technical field: [0002] The invention relates to the technical field of organic fertilizers, in particular to a compound microbial agent for fermenting straw and its preparation method and application. [0003] Background technique: [0004] my country is a large agricultural country, and food production provides an important foundation and guarantee for the national economy and people's livelihood, but the disposal of the resulting agricultural waste has become a difficult problem. At present, straw is mainly disposed of by incineration, which not only causes a serious waste of resources, but also causes serious environmental pollution and damages human health. In addition, the high temperature generated during incineration also destroys the bacteria in the land. and organic matter, which reduces the fertility of the soil and is extremely harmful. If the straw can be used rationally and used as raw material for organic fertilizer fermentation, it can not only reduce ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/18C05G1/00C12R1/46C12R1/125C12R1/10C12R1/865C12R1/25
CPCC05C9/00C12N1/18C12N1/20C05F3/00C05F9/04C05F11/00C05F11/02C05F11/08
Inventor 乔琳高长斌姚宏明刘蕊冯媛媛
Owner BEIJING DAWEIJIA BIOTECH SHARE CO LTD
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