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Saline land modifier containing phosphogypsum and dimethylthiourea and usage method thereof

A technology of dimethylene triurea and saline-alkali land, which is applied in the direction of chemical instruments and methods, applications, organic fertilizers, etc., can solve the problems of complex production process, inability to be popularized, poor treatment effect and limitations of other conditions, and achieve Low solubility, increased water permeability, and reduced bulk density

Inactive Publication Date: 2016-01-06
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 land modifier containing phosphogypsum and dimethylthiourea and usage method thereof
  • Saline land modifier containing phosphogypsum and dimethylthiourea and usage method thereof
  • Saline land modifier containing phosphogypsum and dimethylthiourea and usage method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Raw material preparation for saline-alkali soil improver

[0031] Phosphogypsum,

[0032] Dimethylene triurea, its structural formula is:

[0033]

[0034] The above raw materials are stored separately.

[0035] The proportion of raw materials in the saline-alkali land improving agent is 200 parts by weight of phosphogypsum corresponding to 1 part by weight of dimethylene triurea.

[0036] 2. How to use saline-alkali soil improver

[0037] (1) First, sprinkle phosphogypsum evenly on the surface of the saline-alkali land, and plow 20cm deep, so that the phosphogypsum and the soil layer are evenly mixed and kept for 5 days;

[0038] (2) Sprinkle dimethylene triurea evenly on the surface of the saline-alkali land, and plow 20cm deep to mix the dimethylene triurea with the soil layer evenly, and spray water on the soil layer to make the soil layer 20cm deep in the saline-alkali land moist. , keep for 5 days.

[0039] The method determines the application amount o...

Embodiment 2

[0041] 1. Raw material preparation for saline-alkali soil improver

[0042] Phosphogypsum,

[0043] Dimethylene triurea, its structural formula is:

[0044]

[0045] The above raw materials are stored separately.

[0046] The proportion of raw materials in the saline-alkali land improving agent is 600 parts by weight of phosphogypsum corresponding to 50 parts by weight of dimethylene triurea.

[0047] 2. How to use alkaline land improver

[0048] (1) First, sprinkle phosphogypsum evenly on the surface of the saline-alkali land, and plow 20cm deep, so that the phosphogypsum and the soil layer are evenly mixed and kept for 20 days;

[0049] (2) Sprinkle dimethylene triurea evenly on the surface of the saline-alkali land, and plow 20cm deep to mix the dimethylene triurea with the soil layer evenly, and spray water on the soil layer to make the soil layer 20cm deep in the saline-alkali land moist. , keep for 10 days.

[0050] The method determines the application amount of...

Embodiment 3

[0052] 1. Raw material preparation for saline-alkali soil improver

[0053] Phosphogypsum,

[0054] fulvic acid,

[0055] Dimethylene triurea, its structural formula is:

[0056]

[0057] The above raw materials are stored separately;

[0058] The raw material content of the saline-alkaline land improving agent is: 200 parts by weight of phosphogypsum corresponds to 1 part by weight of fulvic acid and 1 part by weight of dimethylenetriurea;

[0059] 2. How to use saline-alkali soil improver

[0060] (1) First mix the phosphogypsum fulvic acid evenly, sprinkle it evenly on the surface of the saline-alkali land, and plow 20cm deep, so that the phosphogypsum and the soil layer are evenly mixed and kept for 5 days;

[0061] (2) Sprinkle dimethylene triurea evenly on the surface of the saline-alkali land, and plow 20cm deep to mix the dimethylene triurea with the soil layer evenly, and spray water on the soil layer to make the soil layer 20cm deep in the saline-alkali land moi...

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Abstract

The invention provides a saline land modifier containing phosphogypsum and dimethylthiourea and usage method thereof. The saline land modifier comprises the following raw materials by weight: 200-600 portions of phosphogypsum and 1-50 portions of dimethylthiourea. The usage method comprises treatment of saline land with phosphorus gypsum, and treatment of saline land with dimethylthiourea. The saline land modifier with the above formula with the usage method can quickly improve the saline alkali soil, and is suitable for the growth of crops; and the saline land modifier can be widely used, and is applicable to soil salinization improvement caused by different reasons in different regions; the saline land modifier can be applied to saline soil to improve soil structure, reduce soil alkalinity, improve soil desalting rate, improve soil fertility, promote crop growth, and improve agricultural economy.

Description

technical field [0001] The invention relates to the technical field of saline-alkali treatment, in particular to a saline-alkali soil improver containing phosphogypsum+dimethylene triurea 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 earth. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K109/00
Inventor 徐魁赵先明蒋俊蕊廖吉星彭宝林
Owner GUIZHOU KAILIN GRP CO LTD
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