Improver used in cotton saline-alkaline land and preparation method therefor

A technology of saline-alkali soil and improver, which is applied in the direction of chemical instruments and methods, applications, and other chemical processes. It can solve the problems of not being able to effectively improve the air permeability of root plants, and achieve the effects of reducing nutrient loss, large reserves, and low cost.

Inactive Publication Date: 2015-08-19
安徽养禾天生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Close to the most existing saline-alkali land improvement agent of the present invention, be as announcement number: the patent application of 103937507A discloses " a kind of saline-alkali land improvement agent, preparation method and its use method ", and this product an...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Black alum powder 150 mesh for use;

[0022] (2) Grinding phosphogypsum to 150 mesh;

[0023] (3) Irradiate the dry powder of attapulgite (colloidal grade, 150 mesh) under gamma rays (5MeV, 25kGy) for 12 minutes to disperse the attapulgite to enhance its nutrient retention;

[0024] (4) By weight, 6 parts of weathered coal (20% humic acid content) and 2 parts of sodium acrylate are evenly mixed, and then added to water to form a suspension with a concentration of 40g / L. Under stirring for 25 minutes, sodium acrylate was graft-copolymerized on the weathered coal surface. Then dry at 60 degrees Celsius and pulverize to 150 mesh to obtain weathered coal-sodium polyacrylate mixture;

[0025] (5) Crush the carbon residue to 150 mesh;

[0026] (6) By weight, 1 part of black alum in (1), 2 parts of phosphogypsum in (2), 4 parts of attapulgite in (3), 2 parts of weathered coal-polymer Sodium acrylate mixture and 1 part of carbon residue in (5) are uniformly mixed to obt...

Embodiment 2

[0030] (1) Black alum powder 180 mesh for use;

[0031] (2) Grinding phosphogypsum to 180 mesh;

[0032] (3) Irradiate the dry powder of attapulgite (colloidal grade, 180 mesh) under gamma rays (6MeV, 30kGy) for 13 minutes to disperse the attapulgite to enhance its nutrient retention;

[0033] (4) By weight, uniformly mix 6 parts of weathered coal (20% humic acid content) with 2 parts of sodium acrylate, and then add it into water to make a suspension with a concentration of 50g / L. Under stirring for 25 minutes, sodium acrylate was graft-copolymerized on the weathered coal surface. Then dry at 60 degrees Celsius and pulverize to 180 mesh to obtain weathered coal-sodium polyacrylate mixture;

[0034] (5) Crush the carbon residue to 180 mesh;

[0035] (6) By weight, 2 parts of black alum in (1), 1 part of phosphogypsum in (2), 4 parts of attapulgite in (3), 2 parts of weathered coal-polymer Sodium acrylate mixture and 1 part of carbon residue in (5) are uniformly mixed to ob...

Embodiment 3

[0039] (1) Black alum powder 200 mesh for use;

[0040] (2) Grinding phosphogypsum to 200 mesh;

[0041] (3) Irradiate the dry powder of attapulgite (colloidal grade, 200 mesh) under gamma rays (7MeV, 35kGy) for 14 minutes to disperse the attapulgite to enhance its nutrient retention;

[0042] (4) By weight, 6 parts of weathered coal (20% humic acid content) and 2 parts of sodium acrylate are evenly mixed, and then added to water to form a suspension with a concentration of 60g / L. Under stirring for 25 minutes, sodium acrylate was graft-copolymerized on the weathered coal surface. Then dry at 60 degrees Celsius and pulverize to 200 mesh to obtain weathered coal-sodium polyacrylate mixture;

[0043] (5) Crush the carbon residue to 200 mesh;

[0044](6) By weight, 1 part (1) of black alum, 3 parts of (2) of phosphogypsum, 4 parts of (3) of attapulgite, 1 part of (4) of weathered coal-polymer Sodium acrylate mixture and 1 part of carbon residue in (5) are uniformly mixed to o...

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PUM

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Abstract

The invention provides an improver used in cotton saline-alkaline land and a preparation method therefor, composing of black alum, phosphogypsum, attapulgite, weathered coal-sodium polyacrylate complexes and carbon slag, and featured as follows: mixing evenly 1-2 parts of black alum, 1-3 parts of phosphogypsum, 4-5 parts of attapulgite, 1-3 parts of weathered coal-sodium polyacrylate mixture, 1-2 parts of carbon slag calculated by weight; modifying, grafting and polymerizing materials such as the attapulgite and the sodium acrylate; the materials have the effect of water conservation, fertilizer conservation, salt reduction, alkali subtraction, subsoiling and so on, so that the cotton saline-alkaline land soil could be improved, and saline-alkaline land improved fertilizer could be produced by adding into the fertilizer. Compared with the existing method, the method has the advantages of low cost, abundant raw materials, and high efficiency etc.

Description

technical field [0001] The invention relates to an improver and a manufacturing method for reducing the pH value of cotton saline-alkali land. Background technique [0002] The main reasons for the formation of soil salinization are: first, less rainfall and strong evaporation, which cause the deep soil salinity to move upward and accumulate on the surface, causing primary salinization; Secondary salinization. Soil salinization has always been the main obstacle restricting the development of agriculture and the improvement of comprehensive ability in our country. Cotton is the main crop in Northwest China. Due to the ecological hazards caused by soil salinization, the soil surface is compacted, the air permeability is weakened, and the yield is reduced. Therefore, the prevention and control of saline-alkali land cannot be ignored for agricultural development. [0003] At present, the patent publication number is CN102199061A, and the patent application date of public...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 高程华
Owner 安徽养禾天生物科技有限公司
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