Acid soil remediation microbial inoculum and preparation method thereof

A technology for remediation of bacterial agents and acidic soil, applied in fertilizers, applications, organic fertilizers and other directions made of biological waste, which can solve problems affecting crop root growth and nutrient absorption, deterioration of soil physical properties in the plough layer, and inappropriate application of lime all year round. and other problems, to achieve the effect of reducing heavy metal damage, reducing water solubility, and reducing migration

Inactive Publication Date: 2021-01-22
湖北中向生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lime should not be applied all year round. Long-term and excessive application of lime will cause the physical properties of the plow layer soil to deteriorate, cause soil calcareous compaction, and affect crop root growth and nutrient absorption.

Method used

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  • Acid soil remediation microbial inoculum and preparation method thereof
  • Acid soil remediation microbial inoculum and preparation method thereof
  • Acid soil remediation microbial inoculum and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An acidic soil remediation bacterial agent, the effective number of viable bacteria (cfu) of the acidic soil remediation bacterial agent is ≥ 500 million / g, the rate of miscellaneous bacteria is ≤ 20%, the mass fraction of organic matter is ≥ 20%, and the pH value is 4.0-6.0, The composition includes the following components in parts by weight: 3 parts of microbial compound bacteria agent, 12 parts of phosphogypsum powder, 15 parts of plant ash, 15 parts of rice husk powder, and 13 parts of wheat bran powder.

[0036] Preferably, the ratio of the number of viable bacteria of the Bacillus subtilis, Brevibacillus spp., Bacillus megaterium, and Paecilomyces lilacinus is 8:7:5:12.

[0037] The preparation method of described acidic soil remediation bacterial agent, described method comprises the following steps:

[0038] S1. Mix phosphogypsum powder, plant ash, rice husk powder, and wheat bran powder, and grind them to obtain a mixed powder;

[0039] S2, adding the mixed p...

Embodiment 2

[0111] On the basis of Example 1, step 3 carries out coating treatment: mix the mixture and phosphogypsum powder into the fluidized bed, the inlet air temperature is 85°C, heat the silica sol to 55°C, and then spray it into the Coating the mixed particles, cooling and sieving. Others are the same as embodiment 1.

Embodiment 3

[0113] On the basis of Example 2, in said step 3, 12 parts of fungus residues by weight were also added.

[0114] The bacteria residue is an amino acid fermentation liquid, and the bacteria residue is treated and then applied to step 3. The treatment method is: adjust the pH of the bacteria residue to 10, then treat at 0.5 MPa, 120° C. for 3 hours, and heat and concentrate. Others are the same as embodiment 2.

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Abstract

The invention relates to an acid soil remediation microbial inoculum and a preparation method thereof. The effective viable count (cfu) of the acidic soil remediation microbial inoculum is greater than or equal to 0.50 billion/g, the infectious microbe rate is less than or equal to 20%, the mass fraction of organic matters is greater than or equal to 20%, the pH value is 4.0-6.0, and the acidic soil remediation microbial inoculum comprises the following components in parts by weight: 1-5 parts of a microbial compound microbial inoculum, 10-15 parts of phosphogypsum powder, 12-25 parts of plantash, 10-20 parts and 10-15 parts of wheat bran. The soil volume weight of the optimized fertilization and additional application inactivated microbial agent is averagely reduced, and the total porosity is increased so that the soil becomes loose, the soil porosity is increased, the permeability is enhanced, water, gas and heat exchange in the soil and the activity of microorganisms are facilitated by implementation of the soil remediation microbial inoculum, and thus good soil conditions are provided for crop root systems to absorb nutrients and moisture, and the pH of soil is continuously increased.

Description

technical field [0001] The invention belongs to the technical field of microbial bacterial agent production, and relates to an acidic soil remediation bacterial agent and a preparation method thereof. Background technique [0002] Soil acidification refers to the acceptance of H input into the soil + Afterwards, on the one hand, it undergoes an exchange reaction with the basic cations on the soil colloid to be adsorbed on the surface of the soil particles, and the exchanged basic cations are then leached away with the seepage water; on the other hand, the H on the surface of the soil particles + It will spontaneously react with the aluminum on the surface of the mineral lattice and quickly transform into exchangeable aluminum. Since soil acidification is an important aspect in the process of soil weathering and soil formation, it will lead to a decrease in soil value. After the formation of acidic soil, it will affect the activity of organisms in the soil, change the form o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05F17/20
CPCC05G3/80C05D1/00C05F17/20C05D3/02C05F5/002C05F11/08Y02W30/40
Inventor 舒延岭曹庆梅陈伟王杰
Owner 湖北中向生物工程有限公司
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