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Rock and soil moisture properties regulator

A technology of conditioner and moisture, applied in the direction of soil conditioning materials, fertilizer mixtures, organic fertilizers, etc., can solve the problems of difficult diffusion and convection of molecules, limitation of soil improvement depth, large amount of polyacrylamide, etc., to improve soil permeability performance, improve water holding capacity, and reduce the effect of soil bulk density

Inactive Publication Date: 2005-11-30
SICHUAN SANHE SLOPE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the improvement agent has a certain improvement effect on the soil, because the amount of polyacrylamide ammonium is too large, the molecules are not easy to diffuse and convect in the soil layer, so the depth of soil improvement is limited, and it is easy to form polymer cementation on the soil surface. The film-like thin layer of soil causes the soil surface to be closed, weakens the permeability of the soil, and reduces the hydraulic conductivity of the soil, which is not conducive to plant growth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] 1) Components and proportioning (by weight):

[0009] Grassland peat (moisture content 12%) 4

[0010] Straw fiber (bean stalk fiber, length 3mm) 2.5

[0011] Clay minerals (expanded vermiculite) 1.2

[0012] Polyacrylamide (molecular weight 10 million, charge density 30% 0.3

[0013] Dispersant (polyvinyl alcohol) 0.1

[0014] P buffer (mixed phosphate) 0.03

[0015] 2) Application result:

[0016] Used for side slope greening of Chongqing Shangjie Expressway, with a slope of 10 degrees and an area of ​​5000m2 2 , Poor erosion resistance. After the present invention is evenly mixed with limestone soil, it is sprayed on the surface of the slope by mechanical spraying, and the dosage is 5kg / m 2 , and water to moisten. As a result of the application, not only the stability of the rock and soil itself was improved, but also the anti-erosion ability of the rock and soil was enhanced. It was measured after one month that the bulk density of the rock and soil decrease...

Embodiment 2

[0018] 1) Components and proportioning (by weight):

[0019] Grassland peat (moisture content 10%) 6

[0020] Straw fiber (rice straw fiber, length 2.5mm) 1.8

[0021] Clay mineral (expanded vermiculite) 2.0

[0022] Polyacrylamide (molecular weight 8 million, charge density 20%) 0.4

[0023] Dispersant (polyvinyl alcohol) 0.5

[0024] PH buffer (mixed phosphate) 0.02

[0025] 2) Experiment and results:

[0026] The sandstone slope land in Dushan County, Guizhou Province covers an area of ​​50 mu. The soil is thin, the fertility is poor, the annual precipitation is small, and the soil environment and climatic conditions are harsh, resulting in poor quality and low yield of food crops. Use artificial spreading, buried under 5mm soil layer, the dosage is 1kg / m 2 . Measured after 45 days of application, the bulk density of rock and soil decreased by 25%, the effective water holding rate of rock and soil increased by 12%, the porosity increased by 20%, the content of water-...

Embodiment 3

[0028] 1) Components and proportioning (by weight):

[0029] Grassland peat (moisture content 8%) 8

[0030] Straw fiber (wheat straw fiber, length 2.5mm) 1

[0031] Clay mineral (expanded perlite) 0.5

[0032] Polyacrylamide (molecular weight 8 million, charge density 30%) 0.6

[0033] Dispersant (polyvinyl alcohol) 0.3

[0034] PH buffer (mixed phosphate) 0.05

[0035] 2) Experiment and results:

[0036] The shale slope of Xichang Jinping Power Station, with an area of ​​1000m 2 , poor erosion resistance, after the present invention is evenly mixed with shale rock soil, it is mechanically sprayed on the slope surface, and the dosage is 0.5kg / m 2 . After 45 minutes of application, it was measured that the capacity of rock and soil decreased by 27%, the effective water holding rate of rock and soil increased by 10%, the porosity increased by 25%, the content of water-stable aggregates increased by 35%, and the permeability increased by 32%.

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Abstract

The invention provides a soil and rock water property amendment, the ingredient by weight ratio being: prairie peat 4-8, straw fibre 1-2.5, clay mineral 0.5-2, polyacrylamide 0.3-0.6, disperser 0.1-0.5, and PH buffer 0.02-0.05. The amendment can increase the degree of porosity of soil and rock, improve the permeability, decrease the unit weight, promote the water stability cumularsharolith, improve water retention property, and increase fertility, thus it can provide vegetation requiring water and nutrient just in time and quantity. And it can apply in improving shale soil and rock, sandstone soil and rock, chalkstone soil and rock, and so on.

Description

technical field [0001] The invention relates to a soil conditioner, in particular to a conditioner for rock and soil water physical properties. Background technique [0002] The complex topography and changing climate have caused my country's soil structure to be unstable, and the soil layer is barren and continuously degraded, resulting in low yields. At present, soil conditioning technologies mainly include: improvement of organic fertilizer and inorganic fertilizer, influence of microbial population, mixed application of polymer compound and inorganic fertilizer, etc. Chinese patent 001060988 discloses a plant soil conditioner, the components of which are: 20-45% polyacrylamide resin, 10-15% magnesium silicate powder, 10-12% urea, 35%-45% silicon sand carrier filler by weight percentage. 45. Although the improvement agent has a certain improvement effect on the soil, because the amount of polyacrylamide ammonium is too large, the molecules are not easy to diffuse and co...

Claims

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Application Information

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IPC IPC(8): C09K17/40
Inventor 李绍才杨涛蒲海梅
Owner SICHUAN SANHE SLOPE TECH CO LTD
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