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Three-step improvement method for saline alkali soil

A technology for saline-alkali land and bagasse, applied in chemical instruments and methods, restoration of polluted soil, organic fertilizers, etc., can solve the problems of low soil pH adjustment ability and high cost of modifiers, reduce salinization degree, prevent epidermis The effect of crusting, increasing permeability

Inactive Publication Date: 2015-11-18
GUIZHOU KAILIN GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of the amendment is relatively high, and its ability to adjust soil pH is low

Method used

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  • Three-step improvement method for saline alkali soil
  • Three-step improvement method for saline alkali soil
  • Three-step improvement method for saline alkali soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A three-step improvement method for saline-alkali land, comprising the following steps:

[0059] (1) Bagasse pretreatment: Put the bagasse into the autoclave, add ethanol and water, after a period of sterilization, filter the filter residue, mix the filter residue with nitric acid, add water to adjust the pH value to 5 Finally, cellulase is added for enzymolysis, and the material obtained by enzymolysis is dried and pulverized to obtain a bagasse adsorbent. The weight ratio of bagasse, nitric acid, ethanol and cellulase is 80:10:20:2;

[0060] (2) Fermentation: send the oil sour, fungal chaff and EM bacterial agent into the fermentation tank and mix evenly, adjust the water content of the mixture to 50%, and control the fermentation temperature to 40°C within 4 days of fermentation, and control the fermentation temperature for the next 8 days At 55°C, the fermentation material was obtained, and the weight ratio of the oil sour, bacterial chaff and EM bacterial agent was...

Embodiment 2

[0066] A three-step improvement method for saline-alkali land, comprising the following steps:

[0067] (1) Bagasse pretreatment: Put the bagasse into the autoclave, add ethanol and water, after a period of sterilization, filter the filter residue, mix the filter residue with nitric acid, add water to adjust the pH value to 5.2 Finally, cellulase is added for enzymolysis, and the material obtained by enzymolysis is dried and pulverized to obtain a bagasse adsorbent. The weight ratio of bagasse, nitric acid, ethanol and cellulase is 85:12:23:2.2;

[0068] (2) Fermentation: send the oil sour, fungus chaff and EM bacterial agent into the fermentation tank and mix them evenly, adjust the water content of the mixture to 52%, and control the fermentation temperature to 42°C within 5 days of fermentation, and control the fermentation temperature for the next 7 days The fermentation material was obtained at 57°C, and the weight ratio of the oil sour, bacterial chaff and EM bacterial a...

Embodiment 3

[0074] A three-step improvement method for saline-alkali land, comprising the following steps:

[0075] (1) Bagasse pretreatment: Put the bagasse into the autoclave, add ethanol and water, after a period of sterilization, filter the filter residue, mix the filter residue with nitric acid, add water to adjust the pH value to 5.3 Finally, cellulase is added for enzymolysis, the material obtained by enzymolysis is dried and pulverized to obtain a bagasse adsorbent, and the weight ratio of bagasse, nitric acid, ethanol and cellulase is 90:18:28:2.3;

[0076] (2) Fermentation: send the oil sour, fungus chaff and EM bacterial agent into the fermentation tank and mix them evenly, adjust the water content of the mixture to 56%, and control the fermentation temperature to 47°C within 6 days of fermentation, and control the fermentation temperature for the next 6 days at 65°C to obtain fermentation material, the weight ratio of the oily rot, fungus chaff and EM bacterial agent is 110:30...

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Abstract

The invention discloses a three-step improvement method for saline alkali soil. According to the method, the saline alkali soil is improved through three steps that firstly, the saline alkali soil is treated through ardealite, most of salt is taken away from the saline alkali soil, and the pH value of the saline alkali soil is lowered; secondly, the saline alkali soil is treated through bagasse absorption agents, polysilicon acid ferric sulfate, poly-aluminum ferric silicate sulfate and kieselguhr, the content of the salt and the pH value of the saline alkali soil are further lowered, and the soil structure of the saline alkali soil is improved effectively; thirdly, fermentation materials such as mushroom bran and oil cakes are adopted for treatment, the content of the salt in the saline alkali soil is further lowered, the pH value of the saline alkali soil is lowered, the content and category of microorganisms are increased for the saline alkali soil, and the content of organic matter of the saline alkali soil is increased.

Description

technical field [0001] The invention relates to the technical field of improvement of saline-alkali land, in particular to a three-step improvement method of saline-alkali land. Background technique [0002] Saline-alkali land is the general term for salt land and alkaline land. Saline soil mainly refers to salinized soil with high chloride or sulfate content. The soil is alkaline, but the pH value is not necessarily high. Alkaline soil refers to the soil containing carbonate or heavy phosphate, the pH value is high, and the soil is alkaline. The content of organic matter in saline-alkali land is low, the soil fertility is low, the physical and chemical properties are poor, and there are many anions and cations harmful to crops, so it is difficult for crops to promote seedlings. The area of ​​saline-alkali land in the world is 954.38 million hectares, of which 99.13 million hectares are in my country. The formation of alkaline land and alkalized soil in my country is most...

Claims

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Application Information

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IPC IPC(8): C09K17/40B09C1/08C09K101/00C09K109/00
Inventor 王国维陈彬蒋俊蕊赵先明魏发展廖吉星
Owner GUIZHOU KAILIN GRP CO LTD
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