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Organic-inorganic soil conditioner

A soil conditioner and inorganic composite technology, applied in the field of soil pollution and restoration, to achieve the effects of reducing storage and drying costs, good economic benefits, and improving soil porosity

Inactive Publication Date: 2018-09-04
中国农业大学烟台研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an organic-inorganic compound soil conditioner aiming at the shortcomings of the single inorganic source or organic source soil conditioner in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An organic-inorganic composite soil conditioner, by weight, comprising the following components:

[0027] 80 parts of biogas residue fermented fertilizer, 40 parts of liquid calcium polysulfide, 30 parts of oyster shell powder, 0.2 parts of compound microbial agent;

[0028] The preparation method of biogas residue fermented fertilizer is as follows: take the biogas residue with water content of 80~85wt% and mix evenly with peanut shell powder, wherein the mass fraction of peanut shell powder is 20%, add 2‰ of organic fertilizer starter therein, Adjust the moisture content to 70wt%, compost and ferment, turn the compost once every two days from the third day, compost and ferment for 40 to 50 days, and check the fermentation temperature, in which the high temperature stage (above 60°C) is not less than 7 days, after the end of fermentation , the water content is reduced to below 30wt%, and the material is dark brown with aroma.

[0029] The composite microbial bacterial...

Embodiment 2

[0031] An organic-inorganic composite soil conditioner, by weight, comprising the following components:

[0032] 100 parts of biogas residue fermented fertilizer, 40 parts of sodium polysulfide solution, 50 parts of oyster shell powder, 0.2 part of compound microbial agent;

[0033] The preparation method of biogas residue fermented fertilizer is as follows: get water content and be that the biogas residue of 80~85wt% mixes with sweet potato seedling powder evenly, wherein the mass fraction of sweet potato seedling powder is 30%, adds 2‰ organic fertilizer starter wherein, adjusts Moisture content is 60wt%, composting and fermenting, turning the compost once every two days from the third day, composting and fermenting for 40 to 50 days, testing the fermentation temperature, wherein the high temperature stage (above 60°C) is not less than 7 days, after the end of the fermentation, The water content is reduced to below 30wt%, and the material is dark brown with aroma.

[0034] ...

Embodiment 3

[0036] An organic-inorganic composite soil conditioner, by weight, comprising the following components:

[0037] 100 parts of biogas residue fermented fertilizer, 30 parts of lignin-based dithiocarbamate, 30 parts of oyster shell powder, 0.5 part of compound microbial agent;

[0038]The preparation method of biogas residue fermented fertilizer is as follows: get water content and be that the biogas residue of 80~85wt% mixes evenly with corn stalk powder, wherein the mass fraction of corn stalk powder is 40%, adds 1‰ organic fertilizer starter wherein, adjusts Moisture content is 70wt%, composting and fermenting, turn the compost once every two days from the third day, composting and fermenting for 40 to 50 days, check the fermentation temperature, wherein the high temperature stage (above 60°C) is not less than 7 days, after the end of the fermentation, The water content is reduced to below 30wt%, and the material is dark brown with aroma.

[0039] The composite microbial bac...

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Abstract

The invention relates to an organic-inorganic soil conditioner which comprises the following components in parts by weight: 80-100 parts of biogas residue fermentation fertilizer, 30-40 parts of a heavy metal chelating agent, 30-50 parts of oyster shell powder and 0.2-0.5 parts of a compound microbial agent; the biogas residue fermentation fertilizer is prepared by uniformly mixing biogas residueswith a moisture content of 80-85 percent by weight and biomass powder to obtain a mixture and then performing composting fermentation, and the mass fraction of the biomass powder in the mixture is 20-40 percent by weight; the heavy metal chelating agent is one of or a compound of any two of sodium polysulfide, calcium polysulfide and dithiocarbamate derivative; the compound microbial agent consists of bacillus subtilis, bacillus licheniformis, bacillus amyloliquefaciens and bacillus laterosporus. The soil conditioner provided by the invention can improve acidified soil, reduce the heavy metalactivity and further mineralize nutrient elements.

Description

technical field [0001] The invention relates to a soil conditioner, in particular to an organic-inorganic composite soil conditioner, which belongs to the technical field of soil pollution and restoration. Background technique [0002] Cultivated land is the basic resource and condition for human survival. The second national land survey shows that my country's cultivated land area is 13538×104hm 2 (2.031 billion mu). The Ministry of Environmental Protection’s 2014 National Soil Pollution Survey Bulletin shows that my country’s farmland soil pollution is becoming more and more serious, and the rate of farmland soil points exceeding the standard reaches 19.4%, and cadmium, nickel, copper, arsenic, mercury, lead, DDT and polycyclic aromatic hydrocarbons have become the main pollutants. thing. Soil pollutants are difficult to diffuse and dilute. Once pollution occurs, it is difficult to recover. If it is to be treated, it will require high costs and a long period of time. ...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K109/00C09K101/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 罗星李华杨守军邵蕾南松剑
Owner 中国农业大学烟台研究院
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