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Soil improver and preparation method thereof, and method for improving saline-alkali soil in afforestation land

A soil conditioner and soil improvement technology are applied in the field of salinized soil conditioners, which can solve problems such as poor improvement effect, and achieve the effects of promoting the construction of ecological shelterbelts, improving the preservation rate of seedlings, and improving texture and fertility.

Inactive Publication Date: 2018-05-25
INST OF AFFORESTATION & DESERTIFICATION PREVENTION & CONTROL XINJIANG ACADEMY OF FOREST SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a kind of soil improver and its preparation method and a method for improving saline-alkali soil in afforestation land, which overcomes the above-mentioned deficiencies in the prior art, and can effectively Solve the problem of poor improvement effect in the improvement process of existing salinized soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: The soil conditioner, raw materials include 70 to 85 parts of desulfurized gypsum, 10 to 25 parts of humic acid, 0.5 to 5 parts of magnesium sulfate, 0.5 to 5 parts of water-soluble permanent high molecular polymer and 1.0 to 10 parts of solid acid, the soil conditioner is obtained by the following preparation method: the required amount of desulfurized gypsum, humic acid, magnesium sulfate, water-soluble high molecular polymer and solid acid are mixed A soil conditioner is obtained after uniformity. The use of desulfurized gypsum, humic acid, magnesium sulfate, water-soluble polymers and solid acids can reduce the cost of improving salinized soil.

Embodiment 2

[0020] Embodiment 2: this soil conditioner, raw material comprises 70 parts by weight or 85 parts of desulfurized gypsum, 10 parts or 25 parts of humic acid, 0.5 part or 5 parts of magnesium sulfate, 0.5 part or 5 parts of water-soluble permanent high molecular polymer and 1.0 part or 10 parts of solid acid, the soil conditioner is obtained by the following preparation method: the required amount of desulfurization gypsum, humic acid, magnesium sulfate, water-soluble high molecular polymer and solid acid are mixed A soil conditioner is obtained after uniformity.

Embodiment 3

[0021] Embodiment 3: As an optimization of the above embodiments, the water-soluble polymer is more than one of polyacrylamide, polyvinyl alcohol, and polymaleic anhydride.

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PUM

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Abstract

The invention relates to the technical field of salinized soil conditioners and in particular relates to a soil conditioner, a preparation method thereof and a method for conditioning salinized soil on afforestation lands. The soil conditioner is obtained by the following preparation method: uniformly mixing a required amount of desulphurization gypsum, humic acid, magnesium sulfate, water-soluble polymers and solid acid. By adopting the soil conditioner and an application method of the soil conditioner, the pH value, alkalinity and total salt content of the salinized soil can be reduced, the conditioning cost of the salinized soil is reduced and the conditioning effects of the salinized soil are effectively improved, thus improving the soil texture and fertility and then increasing the seedling survival rate. The soil conditioner and the method have the function of accelerating agricultural development and ecological shelter forest construction of salinized regions.

Description

technical field [0001] The invention relates to the technical field of saline-alkali soil improver, and relates to a soil improver, a preparation method thereof and a method for improving saline-alkali soil in afforestation sites. Background technique [0002] Since most of the areas requiring afforestation belong to arid and sandy areas, the evaporation in this area is high, the site conditions and structure of the soil are poor, the soil of the afforestation site has more soluble salts and is highly alkaline, and the permeability and water retention are poor. The soil in the area belongs to the saline-alkali soil of afforestation land, which hinders the normal growth of afforestation seedlings. The saline-alkali soil of afforestation has the following characteristics: (1) high pH value (above 8.5); (2) rich in harmful salts, such as sodium carbonate; (3) poor air permeability; (4) the surface layer is easy to form plates; (5) Low fertility; (6) Alkalinity greater than 20%...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40A01B79/02C09K109/00C09K101/00
CPCY02A40/22Y02P60/40
Inventor 鲁天平郭靖刘永萍吴圣华
Owner INST OF AFFORESTATION & DESERTIFICATION PREVENTION & CONTROL XINJIANG ACADEMY OF FOREST SCI
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