Saline-alkali soil modifying agent and preparation method and application method of saline-alkali soil modifying agent

An application method and technology of improver, applied in the direction of chemical instruments and methods, applications, fertilization devices, etc., can solve the problems of low soil pH adjustment ability and high cost of improver, and achieve enhanced effect, improved physical and chemical properties, and good salt return Effect

Inactive Publication Date: 2015-12-16
GUIZHOU KAILIN GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of the amendment is relatively high, and its ability to adjust soil pH is low

Method used

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  • Saline-alkali soil modifying agent and preparation method and application method of saline-alkali soil modifying agent
  • Saline-alkali soil modifying agent and preparation method and application method of saline-alkali soil modifying agent
  • Saline-alkali soil modifying agent and preparation method and application method of saline-alkali soil modifying agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] raw material:

[0036] Phosphogypsum 200kg, oil dry 150kg, urea formaldehyde 20kg, fungus chaff 120kg, vermicompost 10kg, wild sweet potato stem 60kg, cow dung 40kg, sheep dung 20kg and polysilicate aluminum ferric sulfate 30kg.

[0037] Preparation:

[0038] (1) Raw material pretreatment: drying the phosphogypsum to a moisture content of 5%, and then pulverizing it into 60-mesh fine powder to obtain phosphogypsum powder; cut the lignified wild sweet potato stems into 1cm long segments, and then place them in 400 Drying at a temperature of ℃ to a moisture content of 3%;

[0039] (2) compost: take 15% of the total amount of phosphogypsum powder and mix it with vermicompost, sheep dung and cow dung evenly, adjust the moisture content of the mixture to 30%, then stack it in a sunny place, seal it with yellow mud and ferment it for 40 day, get compost;

[0040] (3) Mixing and granulation: after adjusting the moisture content of the remaining 80% of phosphogypsum powder a...

Embodiment 2

[0045] raw material:

[0046] Phosphogypsum 300kg, oil dry 200kg, urea formaldehyde 30kg, fungus bran 180kg, vermicompost 20kg, wild sweet potato stem 80kg, cow dung 60kg, sheep dung 30kg and polysilicate aluminum ferric sulfate 50kg.

[0047] Preparation:

[0048] (1) Raw material pretreatment: drying the phosphogypsum to a moisture content of 7%, then pulverizing it into 200-mesh fine powder to obtain phosphogypsum powder; cutting the lignified wild sweet potato stems into 3cm long segments, and then placing them at 600 Drying at a temperature of ℃ to a moisture content of 6%;

[0049] (2) compost: take 20% of the total amount of phosphogypsum powder and mix it with vermicompost, sheep dung and cow dung evenly, adjust the moisture content of the mixture to 50%, then stack it in a sunny place, seal it with yellow mud and ferment it for 60 day, get compost;

[0050] (3) Mixing and granulation: after adjusting the moisture content of the remaining 85% of phosphogypsum powder...

Embodiment 3

[0055] raw material:

[0056] Phosphogypsum 250kg, oil dry 170kg, urea formaldehyde 24kg, fungus bran 150kg, vermicompost 15kg, wild sweet potato stem 70kg, cow dung 50kg, sheep dung 25kg and polysilicate aluminum ferric sulfate 40kg.

[0057] Preparation:

[0058] (1) Raw material pretreatment: drying the phosphogypsum to a moisture content of 6%, then pulverizing it into 80-mesh fine powder to obtain phosphogypsum powder; cutting the lignified wild sweet potato stems into 2cm long segments, and then placing them at 500 Drying at a temperature of ℃ to a moisture content of 4%;

[0059] (2) compost: take 18% of the total amount of phosphogypsum powder and mix it with vermicompost, sheep dung and cow dung evenly, adjust the moisture content of the mixture to 40%, then stack it in a sunny place, seal it with yellow mud and ferment it for 50% day, get compost;

[0060] (3) Mixing and granulation: after adjusting the moisture content of the remaining 82% of phosphogypsum powder...

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Abstract

The invention discloses a saline-alkali soil modifying agent and a preparation method and an application method of the saline-alkali soil modifying agent. The saline-alkali soil modifying agent is prepared from, by weight, 200-300 parts of ardealite, 150-200 parts of oil cakes, 20-30 parts of urea formaldehyde, 120-180 parts of mushroom residues, 10-20 parts of wormcast, 60-80 parts of stems of ficus tikoua bur, 40-60 parts of cow dung, 20-30 parts of sheep manure and 30-50 parts of ploysilicate aluminum ferric sulphate. Ficus tikoua bur is capable of absorbing salts from saline-alkali soil, biological degradation time of the high-temperature dried stems of ficus tikoua bur is 1-2 years, and applying the stems of ficus tikoua bur to the saline-alkali soil can absorb the salts in the saline-alkali soil to reduce salt content of the saline-alkali soil, promote formation of soil aggregate structure to improve soil physicochemical properties and achieve effectiveness in water retention and inhibition of salt return.

Description

technical field [0001] The present invention relates to the technical field of improvement of saline-alkali land, in particular to a saline-alkali land improver and a preparation method and application method thereof. Background technique [0002] Saline-alkali land is a general term for salt land and alkali land. Saline soil mainly refers to salinized soil with high chloride or sulfate content, the soil is alkaline, but the pH value is not necessarily high. Alkaline land refers to soils that contain carbonates or heavy phosphates, have a higher pH and are alkaline. Saline-alkali land has low organic matter content, low soil fertility, poor physical and chemical properties, and many anions and cations that are harmful to crops, making it difficult for crops to promote seedlings. The area of ​​saline-alkali land in the world is 954.38 million hectares, of which my country is 99.13 million hectares. Most of the formation of alkaline land and alkaline soil in my country is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C05G3/04C09K109/00C05G3/80
Inventor 廖吉星孙志梅石秀明朱飞武项双龙周勇
Owner GUIZHOU KAILIN GRP CO LTD
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