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Method for improving saline and alkaline land by using ardealite, tetrametilenpentaurea and biological bacteria

A technology of tetramethylene pentaurea and methyl pentaurea, applied in the field of saline-alkali land treatment, can solve the problems of inability to be popularized in a large area, poor treatment effect, complicated production process, etc., to increase water permeability, reduce time, and reduce Effect of Salt Content

Inactive Publication Date: 2015-12-02
GUIZHOU KAILIN GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many soil amendments for chemical treatment of soil salinization, such as gypsum, calcium sulfate, superphosphate, industrial waste phosphogypsum, industrial waste acid, organic fertilizer, humic acid, fly ash, peat, fermented vinegar These have achieved certain effects on improving saline-alkali land. More commonly used are organic fertilizers and gypsum, of which gypsum is made of Ca 2+ Substitution of Na + And use acid to neutralize alkali to improve saline-alkali land; but limited by complex production process, poor treatment effect and other conditions, it cannot be popularized in a large area

Method used

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  • Method for improving saline and alkaline land by using ardealite, tetrametilenpentaurea and biological bacteria
  • Method for improving saline and alkaline land by using ardealite, tetrametilenpentaurea and biological bacteria
  • Method for improving saline and alkaline land by using ardealite, tetrametilenpentaurea and biological bacteria

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Raw material preparation

[0038] Phosphogypsum,

[0039] Tetramethylene pentaurea, its structural formula is:

[0040]

[0041] The curing agent is selected from at least two of zinc sulfate, trimethyl phosphate, diethyl oxalate, oxalic acid, phthalic acid, benzoic acid, and monochloroacetic acid. This implementation selects zinc sulfate and trimethyl phosphate;

[0042] straw;

[0043] Biological bacteria, which can be at least one of Bacillus subtilis, salt-tolerant Azospirillum brasiliensis, salt-tolerant Klebsiella nitrogen-fixing bacteria, saline-alkali phospholytic bacteria Trichoderma reesei, and alkaliphilic bacteria. In this embodiment, Bacillus subtilis is selected Bacillus, the number of live bacteria in each biological bacteria is 1×10 3～4 more than cfu / g

[0044] 2. A method for improving saline-alkali land with phosphogypsum+tetramethylenepenturea+biological bacteria, comprising the following steps:

[0045] (1) For the production of material A...

Embodiment 2

[0054] 1. Raw material preparation

[0055] Phosphogypsum,

[0056] Tetramethylene pentaurea, its structural formula is:

[0057]

[0058] The curing agent is selected from at least two of zinc sulfate, trimethyl phosphate, diethyl oxalate, oxalic acid, phthalic acid, benzoic acid, and monochloroacetic acid. This implementation selects zinc sulfate and trimethyl phosphate;

[0059] straw;

[0060] Biological bacteria, which can be at least one of Bacillus subtilis, salt-tolerant Azospirillum brasiliensis, salt-tolerant Klebsiella nitrogen-fixing bacteria, saline-alkali phospholytic bacteria Trichoderma reesei, and alkaliphilic bacteria. In this embodiment, Bacillus subtilis is selected Bacillus, the number of live bacteria in each biological bacteria is 1×10 3～4 more than cfu / g

[0061] 2. A method for improving saline-alkali land with phosphogypsum+tetramethylenepenturea+biological bacteria, comprising the following steps:

[0062] (1) For the production of straw mate...

Embodiment 3

[0071] 1. Raw material preparation

[0072] Phosphogypsum,

[0073] Tetramethylene pentaurea, its structural formula is:

[0074]

[0075] Curing agent, select at least two in zinc sulfate, trimethyl phosphate, diethyl oxalate, oxalic acid, phthalic acid, benzoic acid, monochloroacetic acid, this implementation selects trimethyl phosphate, diethyl oxalate, oxalic acid ;

[0076] straw;

[0077] Biological bacteria, which can be at least one of Bacillus subtilis, salt-tolerant Azospirillum brasiliensis, salt-tolerant Klebsiella nitrogen-fixing bacteria, saline-alkali phospholytic bacteria Trichoderma reesei, and alkaliphilic bacteria. In this embodiment, Bacillus subtilis is selected Bacillus, salt-tolerant Azospirillum brasiliensis, salt-tolerant Klebsiella nitrogen-fixing bacteria, saline-alkali phosphate-tolerant Trichoderma reesei, the number of viable bacteria in each biological bacteria is 1×10 3～4 more than cfu / g

[0078] 2. A method for improving saline-alkali l...

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Abstract

The invention provides a method for improving a saline and alkaline land by using ardealite, tetrametilenpentaurea and biological bacteria. The method comprises the following steps: firstly, treating the saline and alkaline land by using ardealite; then treating the saline and alkaline land by using tetrametilenpentaurea and a curing agent; and finally, treating the saline and alkaline land by using materials which are treated by a mixture of straws and microorganisms. With the adoption of the method for improving the saline and alkaline land, provided by the invention, the saline and alkaline land can be rapidly improved and is suitable for the growth of crops; an application range of a modifying agent is relatively wide and is applicable to soil improvement of soil alkalization caused by different reasons in different regions; and the modifying agent is reasonably applied to the soil so that the soil structure can be improved, the soil alkalinity is reduced, the salt rejection ratio of the soil is improved, the soil fertility is improved, the growth of the crops is accelerated and the agricultural economy is improved.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land treatment, in particular to a method for improving saline-alkali land by using phosphogypsum+tetramethylenepenturea+biological bacteria. Background technique [0002] Saline-alkali land is a general term for saline soil, alkaline soil and various salinized and alkalized soils. Saline soil refers to the soil in which the soluble salt content in the soil reaches a certain level, which can cause obvious harm to the growth and development of plants. Alkaline soil refers to the soil that contains a large amount of exchangeable ions in the soil, and the amount reaches the level that can harm the growth and development of plants and change the soil properties. In actual conditions, saline soil and alkaline soil often coexist in a mixed form, collectively referred to as saline-alkali soil. [0003] Saline-alkali land is an important land resource, and it is a soil type widely distributed on t...

Claims

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Application Information

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IPC IPC(8): A01C21/00C05G3/00C05F17/00
CPCA01C21/005C05D3/00C05F17/00C05G3/00C05F11/00Y02W30/40
Inventor 赵先明陈彬魏发展孙志梅廖吉星
Owner GUIZHOU KAILIN GRP CO LTD
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