Saline-alkali soil improver containing phosphogypsum+tetramethylene pentaurea and application method thereof

A technology of tetramethylene pentaurea and saline-alkali land, applied in the field of saline-alkali land treatment, can solve the problems of complex production process, poor treatment effect, and inability to be popularized in a large area, so as to reduce soil bulk density, increase water permeability, and have a wide range of applications Effect

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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  • Saline-alkali soil improver containing phosphogypsum+tetramethylene pentaurea and application method thereof
  • Saline-alkali soil improver containing phosphogypsum+tetramethylene pentaurea and application method thereof
  • Saline-alkali soil improver containing phosphogypsum+tetramethylene pentaurea and application method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A saline-alkali soil improver containing phosphogypsum + tetramethylene pentaurea provided in this embodiment, the saline-alkali soil improver comprises the following raw materials in parts by weight: 100 parts of phosphogypsum, 5 parts of calcium fulvic acid, 5 parts of tetramethylene pentaurea 2 parts of urea, 3 parts of oxalic acid, 1 part of hydroxymethyl cellulose, and phosphogypsum, calcium fulvic acid, tetramethylene pentaurea, oxalic acid, and hydroxymethyl cellulose were stored separately.

[0026] Wherein the structural formula of tetramethylene pentaurea is:

[0027]

[0028] At the same time, this embodiment also provides a method for using a saline-alkali soil improver containing phosphogypsum+tetramethylenepenturea, which specifically includes the following steps:

[0029] (1) First mix phosphogypsum and calcium fulvic acid, sprinkle it evenly on the surface of the saline-alkali soil, and plow 20cm deep, so that the phosphogypsum and calcium fulvic acid...

Embodiment 2

[0033] This example provides a saline-alkali soil improving agent containing phosphogypsum + tetramethylene pentaurea, which contains the following raw materials in parts by weight: 500 parts of phosphogypsum, 30 parts of calcium fulvic acid, 20 parts of urea, 8 parts of oxalic acid, 5 parts of hydroxymethyl cellulose, and phosphogypsum, calcium fulvic acid, tetramethylene pentaurea, oxalic acid, and hydroxymethyl cellulose were stored separately.

[0034] Wherein the structural formula of tetramethylene pentaurea is:

[0035]

[0036] At the same time, this embodiment also provides a method for using a saline-alkali soil improver containing phosphogypsum+tetramethylenepenturea, which specifically includes the following steps:

[0037] (1) First mix phosphogypsum and calcium fulvic acid, spread it evenly on the surface of the saline-alkali soil, and plow 20cm deep, so that the phosphogypsum and calcium fulvic acid are evenly mixed with the soil layer, and keep for 20 days; ...

Embodiment 3

[0041] This embodiment provides a saline-alkaline land improving agent containing phosphogypsum + tetramethylene pentaurea. 15 parts of urea, 5 parts of oxalic acid, 3 parts of hydroxymethyl cellulose, and phosphogypsum, calcium fulvic acid, tetramethylene pentaurea, oxalic acid, and hydroxymethyl cellulose were stored separately.

[0042] Wherein the structural formula of tetramethylene pentaurea is:

[0043]

[0044]At the same time, this embodiment also provides a method for using a saline-alkali soil improver containing phosphogypsum+tetramethylenepenturea, which specifically includes the following steps:

[0045] (1) First mix phosphogypsum and calcium fulvic acid, sprinkle it evenly on the surface of the saline-alkali soil, and plow 20cm deep, so that the phosphogypsum and calcium fulvic acid are evenly mixed with the soil layer, and keep for 15 days;

[0046] (2) Sprinkle tetramethylene pentaurea, oxalic acid, and hydroxymethyl cellulose evenly on the surface of sal...

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Abstract

The invention provides a saline-alkali soil improver containing phosphogypsum+tetramethylene pentaurea and an application method thereof. The saline-alkali soil improver comprises phosphogypsum, calcium fulvate, tetramethylene pentaurea, oxalic acid and hydroxymethyl cellulose. The application method comprises the following steps: firstly treating the saline-alkali soil with the phosphogypsum and calcium fulvate, and treating the saline-alkali soil with the mixture of the tetramethylene pentaurea, oxalic acid and hydroxymethyl cellulose. The saline-alkali soil improver in combination with the application method can quickly improve the saline alkali soil, is suitable for plant growth, has wide application range, and is suitable for improving saline-alkali soil caused by different reasons in different regions. After being applied to the saline-alkali soil, the improver can improve the soil structure, lower the soil alkalinity, enhance the salt draining rate of the soil, enhance the soil fertility, promote the growth of crops and enhance the agricultural economy.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land treatment, in particular to a saline-alkali land improver containing phosphogypsum+tetramethylenepenturea and a use method thereof. 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 the ea...

Claims

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Application Information

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IPC IPC(8): C09K17/40A01B79/00C09K101/00C09K109/00
Inventor 徐魁魏发展孙志梅廖吉星张伟
Owner GUIZHOU KAILIN GRP CO LTD
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