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Method for improving saline-alkali soil by using phosphogypsum, trimethylenetetraurea, EDTA (ethylene diamine tetraacetic acid) and biological bacteria

A technology of trimethylenetetraurea and methyltetraurea, which is applied in chemical instruments and methods, applications, fertilizer mixtures, etc., can solve the problems of inability to obtain large-scale promotion, poor treatment effect, complicated production process, etc., and achieve increased Water permeability, reduced bulk density, and low solubility effects

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-alkali soil by using phosphogypsum, trimethylenetetraurea, EDTA (ethylene diamine tetraacetic acid) and biological bacteria
  • Method for improving saline-alkali soil by using phosphogypsum, trimethylenetetraurea, EDTA (ethylene diamine tetraacetic acid) and biological bacteria
  • Method for improving saline-alkali soil by using phosphogypsum, trimethylenetetraurea, EDTA (ethylene diamine tetraacetic acid) and biological bacteria

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Raw material preparation

[0038] Phosphogypsum,

[0039] Trimethylene tetraurea, its structural formula is:

[0040]

[0041] Phthalate,

[0042] polyethylene glycol,

[0043] EDTA,

[0044] straw,

[0045] Biological bacteria, composed of Bacillus subtilis, salt-tolerant Azospirillum brasiliensis, saline-alkali tolerant phosphobacteria, Trichoderma reesei, and cellulolytic bacteria, the number of live bacteria of each biological bacteria is 1×10 3～4 More than cfu / g;

[0046] Animal manure, pig manure, cow manure, chicken manure, sheep manure, etc. are optional, and pig manure is selected in this embodiment;

[0047] 2. A method for improving saline-alkali land with phosphogypsum+trimethylenetetraurea+EDTA+biological bacteria

[0048] Include the following steps:

[0049] (1) To make material A, firstly crush the straw, then add animal feces and biological bacteria, and ferment in a closed container for 5 days; the mixing ratio is: straw powder: animal fece...

Embodiment 2

[0059] 1. Raw material preparation

[0060] Phosphogypsum,

[0061] Trimethylene tetraurea, its structural formula is:

[0062]

[0063] Phthalate,

[0064] polyethylene glycol,

[0065] EDTA,

[0066] straw,

[0067] Biological bacteria, composed of Bacillus subtilis, salt-tolerant Azospirillum brasiliensis, saline-alkali tolerant phosphobacteria, Trichoderma reesei, and cellulolytic bacteria, the number of live bacteria of each biological bacteria is 1×10 3～4 More than cfu / g;

[0068] Animal manure, pig manure, cow manure, chicken manure, sheep manure, etc. are optional, and pig manure is selected in this embodiment;

[0069] 2. A method for improving saline-alkali land with phosphogypsum+trimethylenetetraurea+EDTA+biological bacteria

[0070] Include the following steps:

[0071] (1) To make material A, firstly crush the straw, then add animal feces and biological bacteria, and ferment in a closed container for 30 days; the mixing ratio is straw powder: animal fe...

Embodiment 3

[0081] 1. Raw material preparation

[0082] Phosphogypsum,

[0083] Trimethylene tetraurea, its structural formula is:

[0084]

[0085] Phthalate,

[0086] polyethylene glycol,

[0087] EDTA,

[0088] straw,

[0089] Biological bacteria, composed of Bacillus subtilis, salt-tolerant Azospirillum brasiliensis, saline-alkali tolerant phosphobacteria, Trichoderma reesei, and cellulolytic bacteria, the number of live bacteria of each biological bacteria is 1×10 3～4 More than cfu / g;

[0090] Animal manure, pig manure, cow manure, chicken manure, sheep manure, etc. are optional, and pig manure is selected in this embodiment;

[0091] 2. A method for improving saline-alkali land with phosphogypsum+trimethylenetetraurea+EDTA+biological bacteria includes the following steps:

[0092] (1) To make material A, firstly crush the straw, then add animal feces and biological bacteria, and ferment in a closed container for 20 days; the mixing ratio is straw powder: animal feces: biol...

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Abstract

The invention provides a method for improving saline-alkali soil by using phosphogypsum, trimethylenetetraurea, EDTA (ethylene diamine tetraacetic acid) and biological bacteria. The method comprises the steps of treating the saline-alkali soil with phosphogypsum, then treating the saline-alkali soil with trimethylenetetraurea, phthalic acid and polyethylene glycol and finally treating the saline-alkali soil with EDTA. The saline-alkali soil can be quickly improved by adopting the saline-alkali soil improvement method and is suitable for crop growth. The improvers have a wider range of application, are suitable for improving the soil salinized and alkalized due to different reasons in different regions and can achieve the effects of improving the soil structure, reducing the soil alkalinity, increasing the salt elimination rate of the soil, improving the soil fertility, promoting growth of crops and increasing the agricultural economy by being reasonably applied to the soil.

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+trimethylene tetraurea+EDTA+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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/00C09K101/00
Inventor 杜绍伦陈彬赵先明廖吉星孙志梅宋斌
Owner GUIZHOU KAILIN GRP CO LTD
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