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Method for alleviating sandy soil water infiltration by using macromolecule hydrosol

A hydrosol and polymer technology, applied in the agricultural field, can solve the problems of low agricultural production efficiency, surface soil salinization, harsh natural environment, etc., to improve water saving effect, increase soil water content and improve nutrient utilization. Effect

Inactive Publication Date: 2008-06-04
BAIYIN CITY TECH DEV SERVICE CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the harsh natural environment, low agricultural production efficiency, and low income of the masses, they are only at the level of food and clothing.
In the past few years, the technology of laying plastic film at a depth of 800-1000cm was tried and promoted, but because the water and air channels between the soil layers were completely cut off, salinization of the surface soil occurred within a few years, resulting in the failure of technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Preparation of soil viscosifier: per m 3 Slowly add 300 g of sodium acrylate-acrylamide copolymer with a molecular weight of 15 million to the water under stirring condition, and the degree of crosslinking is 4%. Stop for at least 20 minutes, stir 3 times during the parking, each stirring time is 5 minutes, until the adsorption of the polymer copolymer is completed, and the viscosity is 8.0mm 2 / S polymer hydrosol as soil viscosifier;

[0021] 2. Remove the topsoil to the preset soil depth: remove 30cm of the topsoil in the field, so that the soil depth after removing the topsoil is lower than 10cm below the soil cultivation layer;

[0022] 3. Make the impermeable layer of water: sprinkle the soil tackifier on the surface of the soil layer after removing the surface soil, and then use a multi-toothed iron rake to loosen the surface soil containing polymer hydrosol. The depth of loose soil is 5cm, continue Sprinkle the soil viscosifier on the surface of the sand for...

Embodiment 2

[0025] 1. Preparation of soil viscosifier: Slowly add 350 g of potassium acrylate-acrylamide copolymer with a molecular weight of 20 million to each ton of water under stirring conditions, and the degree of crosslinking is 5%. Stop for at least 20 minutes, stir 3 times during the parking, each stirring time is 5 minutes, until the adsorption of the polymer copolymer is completed, and the viscosity is 15.0mm 2 / S polymer hydrosol as soil viscosifier;

[0026] 2. Remove the topsoil to the preset soil depth: Remove the topsoil of the field by 35cm, so that the soil depth after removing the topsoil is lower than 15cm below the soil cultivation layer;

[0027] 3. Make the impermeable layer of water: On the surface of the soil layer after removing the surface soil, sprinkle the soil tackifier, and then use a multi-toothed iron rake to loosen the surface soil containing the hydrosol. Sprinkle the soil tackifier twice on the surface, and compact the sand after the hydrosol is complet...

Embodiment 3

[0030] 1. Preparation of soil viscosifier: Slowly add 800 g of polyacrylamide with a molecular weight of 10 million to each ton of water under stirring conditions, and the degree of crosslinking is 3%. Stop for at least 25 minutes, stir 4 times during the parking period, each stirring time is 5 minutes, until the adsorption of the polymer copolymer is completed, and the viscosity is 6.0mm 2 / S polymer hydrosol as soil viscosifier;

[0031] 2. Remove the topsoil to the preset soil depth: Remove the topsoil of the field by 30cm, so that the depth of the soil layer after removing the topsoil is lower than 10cm below the soil cultivation layer;

[0032] 3. Make the impermeable layer of water: sprinkle the soil tackifier on the surface of the soil layer after removing the surface soil, and then use a multi-toothed iron rake to loosen the surface soil containing polymer hydrosol. The depth of loose soil is 5cm, continue Sprinkle the soil tackifier on the surface of the sand for the...

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Abstract

The invention discloses a method to slow down water infiltration in sand soil by using polymer hydrosol. The materials of the invention is that acrylate-acryamide copolymer, potassium acrylate-acryamide copolymer, polyacrylamide, water-soluble sodium polyacrylate, potassium polyacrylate with linear structure; the materials are dispersed in water to form the polymer hydrosol; then the polymer hydrosol is taken as soil tackifier to mix with sand and send back to oil surface after wetting and compacting, so as to form a layer of permeability barrier under a soil tillage layer and a plough layer. The method for alleviation water infiltration has an adjustable adding amount of linear polymer according to permeable intensity of sandy soil. The polymer is added into water by ratio, and then water adsorption is carried out while stirring, so as to form hydrosol with viscosity and realize the effects of reducing frictional resistance among sand particles, increasing sand soil weight capacity and filling gaps among sand particles after hydrosol absorbs water and expands.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a method for slowing down low-moisture infiltration of sandy soil by using polymer hydrosol. Background technique [0002] Due to wind and sand, a large area of ​​arable land is submerged by sand, and the trend of soil desertification is becoming more and more serious. The soil water holding capacity of the plow layer of the desertified land is reduced, the utilization rate of water and fertilizer is low, and the relationship between input and output is out of balance, and there is a situation where sand enters and people retreat. Faced with the serious problem of land reduction and population increase, the state has invested huge sums of money in these areas and built large-scale water conservancy embankment irrigation projects, which solved the survival and livelihood of some farmers. However, due to the harsh natural environment and low agricultural production efficiency, the incom...

Claims

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Application Information

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IPC IPC(8): C09K17/18A01B79/00C09K101/00
Inventor 宋宝兴夏春良程登喜刘皓杨成荫翟乃华卢昌社
Owner BAIYIN CITY TECH DEV SERVICE CENT
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