Method for modifying soda alkalized soil into paddy field by inorganic macromolecular soil modifier

A technology of inorganic polymers and soil improvers, applied in the direction of soil improvement machinery, chemical instruments and methods, soil conditioning materials, etc., can solve the problem of slow improvement effect

Inactive Publication Date: 2011-08-17
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method that can quickly and effectively improve heavily soda alkalized soil into a paddy field according to the problems such as slow improvement effect in the existing alkalized soil improvement technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The improvement and repair of the soil is the Daan project area of "Western Land Development and Solving the Western Land of Western Jilin" in Da'an City, Jilin Province.The surface soil is alkaline land, 59.2%of alkaliization (ESP), and a pH of 10.62, which is a severe alkaline soil.The purpose of improvement and repair is to reduce the saline content of surface soil, so that the soil can be suitable for rice growth.In the whole ground, the inorganic polymer improvement agent is applied to 18 tons per hectare, and then stirred in the fields and rake to dissolve the inorganic polymer improvement agent and mixes with the soil.The amount of water for soaking the leaching is 500 cubic meters per hectare.Management according to local normal rice fields.After the autumn harvest, the soil alkaliization was 23.6%, the pH value was 8.56, and the output was 6051 kg / hectare.

Embodiment 2

[0022] The improvement and repair of the soil is the Daan project area of "Western Land Development and Solving the Western Land of Western Jilin" in Da'an City, Jilin Province.The surface soil is alkaline land, 49.6%of alkaliization (ESP), and a pH of 10.21, which is a severe alkaline soil.The purpose of improvement and repair is to reduce the saline content of surface soil, so that the soil can be suitable for rice growth.In the whole ground, the inorganic polymer improvement agent is applied to 15 tons per hectare, and then stirred in the field and rake to dissolve the inorganic polymer modified agent and mix with the soil.The amount of water for soaking the leaching is 450 cubic meters per hectare.Management according to local normal rice fields.After the autumn harvest, the soil alkaliization was 18.7%, the pH value was 8.32, and the output was 7423 kg / hectare.

Embodiment 3

[0024] The improvement and repair of the soil is the Daan project area of "Western Land Development and Solving the Western Land of Western Jilin" in Da'an City, Jilin Province.The surface soil alkali (ESP) is 46.7%, and the pH value is 9.8, which is a severe alkaline soil.The purpose of improvement and repair is to reduce the saline content of surface soil, so that the soil can be suitable for rice growth.In the whole ground, the inorganic polymer improvement agent is applied to 15 tons per hectare, and then stirred in the field and rake to dissolve the inorganic polymer modified agent and mix with the soil.The amount of water for soaking the leaching is 410 cubic meters per hectare.Management according to local normal rice fields.After the autumn harvest, the soil alkaliization was 14.2%, the pH value was 7.92, and the output was 8001 kg / hectare.

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PUM

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Abstract

The invention discloses a method for modifying the soda alkalized soil into the paddy field by an inorganic macromolecular soil modifier. The component of the inorganic macromolecular modifier is solid polymerized ferric sulfate. When the soda alkalized soil is modified into the paddy field by the inorganic macromolecular soil modifier, the modifier is soaked by water in the soda alkalized soil to be fast hydrolyzed, a mass of high-valence cations can be generated to replace exchangeable sodium ions in the soil so as to reduce the alkalization degree of the soil, the replaced sodium ions are discharged along with the drainage through elution, the polyhydroxy complex generated after hydrolysis can play a role of flocculation to the high-dispersion degree soil colloid such as absorbing, bridging, enmeshing and the like, the particulates of the soil colloid are promoted to be gathered into large particulates, the soil permeability is enhanced, and the PH value of the soil can be further reduced due to the hydrolysis acidity-induction effect of the modifier, so that a good soil environment for crops growth can be provided. After the method is used, the soda alkalized soil can be fast modified into the paddy field, so that the method is suitable for popularization and application in agricultural production.

Description

Technical field [0001] The present invention involves the field of soil improvement technology, and specifically involves a method of rapid improvement of the soil as a paddy field by a fast -improvement of the soil of the inorganic polymer soil improvement agent. Background technique [0002] For severe soda alkaline soil, chemical improvement is one of the main ways.At present, the chemical improvement agents reported mainly include calcium chloride, gypsum, phospholosypsum, flue gas desulfurization gypsum, sulfuric acid, hydrochloric acid, sulfur, iron sulfurite, aluminum sulfate, etc. Among them, more actual applications are gypsum, phospholly gypsum, smoke, smoke, and smokeGypsum improvement agent such as gas desulfurization gypsum.The main chemical components of this kind of improved agent are calcium sulfate. The principle of improvement is to use dissolved calcium ions to replace soil exchange sodium ions.Because its dissolution rate is slow, the improvement effect is slo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B77/00C09K17/04C09K101/00
Inventor 李取生秦利鹏张乾坤
Owner JINAN UNIVERSITY
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