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Method for amending saline-alkaline land by using ardealite, methylene diurea, EDTA (Ethylene Diamine Tetraacetic Acid) and biological bacteria

A technology of methylene diurea and saline-alkali land, applied in the direction of chemical instruments and methods, applications, fertilizer mixtures, etc., can solve the problems of complex production process, poor treatment effect, and inability to be popularized in a large area, and achieve low solubility and reduce Time, the effect of increasing water permeability

Inactive Publication Date: 2015-12-09
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Raw material preparation

[0039] Phosphogypsum,

[0040] Methylene diurea, the structural formula is

[0041] Diethyl oxalate,

[0042] Hydroxymethyl Cellulose,

[0043] EDTA,

[0044] straw,

[0045] Animal manure, optional pig manure, cow manure, chicken manure etc., the present embodiment selects pig manure,

[0046] Biological bacteria, at least one of Bacillus subtilis, nitrogen-fixing cyanobacteria, halo-tolerant rhizobium, and alkaliphilic bacteria can be selected. In this embodiment, Bacillus subtilis, nitrogen-fixing cyanobacteria, and halo-tolerant rhizobia are selected. The number of viable bacteria of each type of biological bacteria for the content of 1×10 3～4 More than cfu / g.

[0047] 2. A method for improving saline-alkali land with phosphogypsum+methylene diurea+EDTA+biological bacteria, comprising the following steps:

[0048] (1) For the production of material A, crush the straw, then add animal feces and biological bacteria, and ferment in...

Embodiment 2

[0058] 1. Raw material preparation

[0059] Phosphogypsum,

[0060] Methylene diurea, whose structural formula is

[0061] Diethyl oxalate,

[0062] Hydroxymethyl Cellulose,

[0063] EDTA,

[0064] straw,

[0065] Animal manure, optional pig manure, cow manure, chicken manure etc., the present embodiment selects pig manure,

[0066] Biological bacteria, at least one of Bacillus subtilis, nitrogen-fixing cyanobacteria, halo-tolerant rhizobium, and alkaliphilic bacteria can be selected. In this embodiment, Bacillus subtilis, nitrogen-fixing cyanobacteria, and halo-tolerant rhizobia are selected. The number of viable bacteria of each type of biological bacteria for the content of 1×10 3～4 more than cfu / g

[0067] 2. A method for improving saline-alkali land with phosphogypsum+methylene diurea+EDTA+biological bacteria, comprising the following steps:

[0068] (1) For the production of material A, the straw is crushed, then animal manure and biological bacteria are added,...

Embodiment 3

[0078] 1. Raw material preparation

[0079] Phosphogypsum,

[0080] Methylene diurea, the structural formula is

[0081] Diethyl oxalate,

[0082] Hydroxymethyl Cellulose,

[0083] EDTA,

[0084] straw,

[0085] Animal manure, optional pig manure, cow manure, chicken manure etc., the present embodiment selects pig manure,

[0086] Biological bacteria, at least one of Bacillus subtilis, nitrogen-fixing cyanobacteria, halo-resistant rhizobium, and alkaliphilic bacteria can be selected. In this embodiment, the living bacteria of each biological bacteria are selected The number is the content is 1×10 3～4 more than cfu / g

[0087] 2. A method for improving saline-alkali land with phosphogypsum+methylene diurea+EDTA+biological bacteria, comprising the following steps:

[0088] (1) For the production of material A, 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 feces: bio...

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Abstract

The invention provides a method for amending saline-alkaline land by using ardealite, methylene diurea, EDTA (Ethylene Diamine Tetraacetic Acid) and biological bacteria. The method comprises the steps of firstly carrying out treating with ardealite, then, carrying out treating with a mixture of methylene diurea, diethyl oxalate and hydroxymethyl cellulose, then, carrying out treating with EDTA, and finally, carrying out treating with a mixed material of straws and the biological bacteria. By adopting the method to amend the saline-alkaline land, saline-alkali soil can be amended rapidly so as to be suitable for crop growing; and the amendment is relatively wide in scope of application and is applicable to the soil amendment of soil salinization caused by different regions and different reasons, by reasonably applying the amendment to soil, the structure of the soil can be improved, the alkalinity of the soil is lowered, the salt draining ratio of the soil is increased, the fertility of the soil is increased, the growth of crops is promoted, and 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+methylene diurea+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 on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/00C09K109/00
Inventor 杜绍伦陈彬廖吉星魏发展孙志梅
Owner GUIZHOU KAILIN GRP CO LTD
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