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Soil improver for paddy fields in soda saline-alkali land and preparation method thereof

A technology of soil improver and soda saline-alkali land, applied in the direction of soil preparation methods, soil conditioning materials, chemical instruments and methods, etc., can solve problems such as easy return to saline-alkali, high cost of improvement, and increased soil soluble aluminum content, and achieve a reduction in soil Effect of salinity, restoration of soil vitality, and improvement of aggregate structure

Active Publication Date: 2021-09-28
北京中农煦丰生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application number is 201010601152.9, which discloses a method for improving soda alkalized soil with an inorganic polymer soil improver. The inorganic polymer soil improver is solid polyferric sulfate, and its principle is to replace sodium ions in saline-alkali land. It is the reaction product sodium sulfate that needs to be washed continuously for medium and severe saline-alkali land, and it is easy to return to saline-alkali
However, the price of solid polyferric sulfate modifier is more expensive, and the improvement cost is higher
Extensive use of aluminum sulfate amendments leads to a rapid increase in soil soluble aluminum content, which is likely to cause aluminum ion poisoning to rice

Method used

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  • Soil improver for paddy fields in soda saline-alkali land and preparation method thereof
  • Soil improver for paddy fields in soda saline-alkali land and preparation method thereof
  • Soil improver for paddy fields in soda saline-alkali land and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0057]This embodiment provides a soda saline-alkali paddy field soil improver, which is characterized in that the improver is composed of granules and microbial agents, and the granules include blocking agents, acidity regulators, organic fertilizers and sedimentation agents.

[0058] Its preparation method comprises the following steps:

[0059] (1) take by weighing according to the parts by weight of each component for subsequent use;

[0060] (2) Mix all blocking agents for use in the step (1), add acid regulator and organic fertilizer after mixing evenly, mix evenly and react to form a mixed material;

[0061] (3) adding a settling agent to the mixed material obtained in step (2), keeping the room temperature at 25° C. for 3.5 hours, compounding and granulating to obtain granules;

[0062] (4) prepare bacterial agent culture medium, adjust pH to be 7.0, inoculate microorganism, form microbial bacterial agent after cultivating 7 days, the live bacteria total amount of micr...

Embodiment 2

[0065] This embodiment provides a soda saline-alkali paddy field soil improver, characterized in that the improver is composed of granules and microbial inoculants in a weight ratio of 9:5, and the granules include blockers and acid regulators , organic fertilizer and sedimentation agent; the blocker includes 20kg of fly ash, 15kg of titanium dioxide and 5kg of zeolite powder; Ammonium 0.02kg; the organic fertilizer includes 40kg of humic acid; the sedimentation agent includes 3kg of aluminum sulfate and 5kg of ferrous sulfate. The microorganisms contained in the microbial bacterial agent include extreme halophilic bacteria, Trichoderma, yeast and lactic acid bacteria. The extreme halophilic bacteria are strains of Aspergillus terreus.

[0066] Its preparation method comprises the following steps:

[0067] (1) take by weighing according to the parts by weight of each component for subsequent use;

[0068] (2) Mix all blocking agents for use in the step (1), add acid regulato...

Embodiment 3

[0073] This embodiment provides a soda saline-alkali paddy field soil improver, characterized in that the improver is composed of granules and microbial inoculants in a weight ratio of 1:4, and the granules include blocking agents and acid regulators , organic fertilizer and sedimentation agent; the blocking agent includes 30kg of fly ash, 15kg of titanium dioxide and 5kg of zeolite powder; 0.02kg; the organic fertilizer includes 36kg of humic acid; the sedimentation agent includes 3kg of aluminum sulfate and 5kg of ferrous sulfate; the microorganisms contained in the microbial agent include extreme halophilic bacteria, Trichoderma, yeast and lactic acid bacteria.

[0074] Its preparation method comprises the following steps:

[0075] (1) take by weighing according to the parts by weight of each component for subsequent use;

[0076] (2) Mix all the blocking agents for use in step (1), mix evenly, add acid regulator and organic fertilizer while stirring at room temperature 25...

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Abstract

The invention discloses a soil improver for soda saline-alkali paddy fields and a preparation method thereof. The improver is formed by mixing and reacting granules and microbial agents. The granules include blockers, acid regulators, organic fertilizers and sedimentation agents. agent. Soda saline-alkaline paddy field soil improver of the present invention is suitable for improving soda saline-alkali paddy field soil, and the preferred natural quasi-nanometer non-metallic mineral medium makes it spontaneously separate water and soil in the saline-alkali plow layer, settle naturally, and finally form inert salt on the plow bottom Alkali isolation interface; at the same time, apply halophilic and anti-alkali microbial agents in the soil, use it to discharge acid and neutralize in the cultivation layer, inert treatment of enriched salt in the cell body, and secrete extracellular enzymes to degrade organic matter, etc. Molecular mechanism, so as to reduce soil salinity, activate soil microbial activity, improve soil aggregate structure and fertilize soil, and achieve the purpose of eradicating saline-alkali land.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and in particular relates to a paddy field soil conditioner for soda saline-alkali land and a preparation method thereof. Background technique [0002] Physical measures are generally taken to control saline-alkali paddy fields, mainly in the following two ways: one is based on the law of water and salt operation of "salt comes with water, salt goes with water", and digs drainage ditches for low-lying areas , can draw out the excess water accumulated in the area and discharge it to other places, but this method is easy to return to saline; or, introduce external water into the area to form an aquifer at a certain depth in the depression, and soak for a long enough time to As for the salt contained in the soil fully dissolved in the water, it is discharged to the outside of the depression, and the salt in the soil is taken away with the water, thereby reducing the salt content of the soil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40A01B79/02C09K109/00C09K101/00
CPCA01B79/02C09K17/40C09K2101/00C09K2109/00
Inventor 史洋张森林陈振东陶泓宇
Owner 北京中农煦丰生态科技有限公司
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