Methods of Improving Severe Saline Alkaline Land

A technology of severe saline-alkali land and salt-alkali reducing agent, which is applied in the direction of soil preparation methods, chemical instruments and methods, and fertilizers made from biological waste, can solve the problems of aggravating the degree of salinization, difficulty in large-scale implementation, and high cost of improvement. Achieve the effects of promoting salt fixation and alkali reduction, facilitating large-scale popularization and application, and simple and easy preparation process

Active Publication Date: 2021-10-01
TARIM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The methods for improving saline-alkali land in the prior art include: 1. Water irrigation, which washes out the soluble saline-alkali in the soil or flows into the deep soil; Difficult to implement at scale
2. Apply organic fertilizer, but this method also has certain limitations. For severe saline-alkali land, a large amount of organic fertilizer is needed to effectively improve
3. Use NPK fertilizers and other inorganic salt fertilizers as improvers, but improper application of chemical fertilizers will also increase salinization, especially for severe saline-alkali land, which may increase the degree of salinization, and the cost of improvement is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The method for improving severe saline-alkali land in this embodiment:

[0037] (1) Preparation of composition for improving severe saline-alkali soil; the composition for improving severe saline-alkali soil is composed of organic matter and salt-fixing and alkali-reducing agent, and the mass ratio of organic matter to salt-fixing and alkali-reducing agent is 5:1.

[0038] (1-1) The preparation method of salt-fixing alkali-reducing agent comprises the steps:

[0039] (1-1-1) cut into sections: the cotton stems are cut into 1 cm stem sections;

[0040] (1-1-2) Preparation of nitric acid-activated stem sections: soak a part of the stem sections in nitric acid, the concentration of nitric acid is 69wt%, the soaking time is 24 hours, and the stem sections soaked in nitric acid are left to air-dry naturally to obtain nitric acid-activated stem sections;

[0041] (1-1-3) Preparation of phosphoric acid-activated stem section: another part of the stem section is soaked in phos...

Embodiment 2

[0050] The method for improving severe saline-alkali land in this embodiment:

[0051] (1) Preparation of composition for improving severe saline-alkali soil; the composition for improving severe saline-alkali soil is composed of organic matter and salt-fixing and alkali-reducing agent, and the mass ratio of organic matter to salt-fixing and alkali-reducing agent is 5:1.

[0052] (1-1) The preparation method of salt-fixing alkali-reducing agent comprises the steps:

[0053] (1-1-1) cut into sections: the cotton stems are cut into 1 cm stem sections;

[0054] (1-1-2) Preparation of nitric acid-activated stem sections: soak a part of the stem sections in nitric acid, the concentration of nitric acid is 69wt%, the soaking time is 24 hours, and the stem sections soaked in nitric acid are left to air-dry naturally to obtain nitric acid-activated stem sections;

[0055] (1-1-3) Preparation of phosphoric acid-activated stem section: another part of the stem section is soaked in phos...

Embodiment 3

[0065] The method for improving severe saline-alkali land in this embodiment:

[0066] (1) Preparation of composition for improving severe saline-alkali soil; the composition for improving severe saline-alkali soil is composed of organic matter and salt-fixing and alkali-reducing agent, and the mass ratio of organic matter to salt-fixing and alkali-reducing agent is 5:1.

[0067] (1-1) The preparation method of salt-fixing alkali-reducing agent comprises the steps:

[0068] (1-1-1) cut into sections: the cotton stems are cut into 1 cm stem sections;

[0069] (1-1-2) Preparation of nitric acid-activated stem sections: soak a part of the stem sections in nitric acid, the concentration of nitric acid is 69wt%, the soaking time is 24 hours, and the stem sections soaked in nitric acid are left to air-dry naturally to obtain nitric acid-activated stem sections;

[0070] (1-1-3) Preparation of phosphoric acid-activated stem section: another part of the stem section is soaked in phos...

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PUM

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Abstract

The invention discloses a method for improving severe saline-alkali land, which comprises the following steps: (1) preparation of a composition for improving severe saline-alkali land; (2) methods of sowing and plowing. The invention adapts measures to local conditions, obtains local materials, turns waste into treasure, and solves the problem of environmental pollution caused by cotton plant incineration; moreover, the prices of nitric acid, phosphoric acid and tetrabutyl titanate are relatively cheap, and the preparation process is simple and easy, which is convenient for large-scale popularization and application .

Description

technical field [0001] The present invention relates to saline-alkali land improvement. Specifically, it is a method of improving severe saline-alkali land. Background technique [0002] There are a large number of saline-alkali lands in Xinjiang, and moderate and severe saline-alkali lands account for more than one-fifth of the total cultivated land in Xinjiang. Therefore, the improvement of saline-alkali land in Xinjiang is of great significance to increase the area of ​​cultivated land. [0003] The methods for improving saline-alkali land in the prior art include: 1. Water irrigation, which washes out the soluble saline-alkali in the soil or flows into the deep soil; Difficult to implement on a large scale. 2. Apply organic fertilizer, but this method also has certain limitations. For severe saline-alkali land, a large amount of organic fertilizer is needed to effectively improve it. 3. Use NPK fertilizers and other inorganic salt fertilizers as improvers, but improp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02C05G3/80C09K17/40C09K101/00C09K109/00
CPCA01B79/02C05F3/00C09K17/40C09K2101/00C09K2109/00C05G3/80C05F5/002C05F11/00
Inventor 张翠丽卜东升曹琦陈强张桂兵罗琳
Owner TARIM UNIV
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