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Soil improvement method for saline and alkaline land

A technology for soil improvement and saline-alkali land, which is applied in the direction of soil conditioning materials, chemical instruments and methods, applications, etc., can solve problems such as poor water retention effect, poor improvement effect of saline-alkali land, and slowly improve the salinity of saline-alkali land, so as to avoid increase and avoid Salinity and alkalinity, the effect of improving fertilizer efficiency

Inactive Publication Date: 2016-06-22
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

[0003] The existing improvers can only slowly improve the salinity of saline-alkali land, and the water retention effect is not good, resulting in a poor improvement effect on saline-alkali land

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of improving agent for improving saline-alkali land, its preparation method is as follows:

[0016] First attapulgite is pulverized to 400 orders for use;

[0017] Then the phosphogypsum is pulverized to 400 mesh for use;

[0018] Add 5 parts by weight of Bacillus subtilis to 60 parts by weight of water, seal and stir, the speed is 2 rpm, the temperature is 30°C, and the time is 6 days; the above is crushed to 400 mesh and 20 parts Parts by weight of attapulgite and 20 parts by weight of phosphogypsum crushed to a fineness of 400 mesh are added to the aforementioned stirred solution, mixed evenly, and left for 3 days; wherein attapulgite can retain nutrients It can be combined with phosphogypsum to increase the air permeability of the soil and avoid soil compaction in saline-alkali land;

[0019] Then add 26 parts by weight of plant ash into the aforementioned mixture, stir evenly, heat to 40°C for 2 days, and cool to room temperature to obtain the modifier, wh...

Embodiment 2

[0022] A kind of improving agent for improving saline-alkali land, its preparation method is as follows:

[0023] At first the attapulgite is pulverized to 450 orders for use;

[0024] Then the phosphogypsum is pulverized to 450 mesh for use;

[0025] Add 8 parts by weight of Bacillus subtilis to 63 parts by weight of water, seal and stir, with a rotating speed of 3 rpm, a temperature of 33°C, and a time of 6 days; crush the aforementioned to 450 mesh and obtain 22 parts Parts by weight of attapulgite and phosphogypsum crushed to a fineness of 450 mesh and 25 parts by weight are added to the aforementioned stirred solution, mixed evenly, and left for 3 days; wherein attapulgite can maintain nutrients It can be combined with phosphogypsum to increase the air permeability of the soil and avoid soil compaction in saline-alkali land;

[0026] Then add 28 parts by weight of plant ash to the aforementioned mixture, stir evenly, heat to 43°C for 2 days, and cool to room temperature...

Embodiment 3

[0029] A kind of improving agent for improving saline-alkali land, its preparation method is as follows:

[0030] First attapulgite is pulverized to 500 orders for use;

[0031] Then the phosphogypsum is pulverized to 500 mesh for use;

[0032] Add 10 parts by weight of Bacillus subtilis to 65 parts by weight of water, seal and stir at a speed of 4 revolutions / s, a temperature of 35°C, and a time of 7 days; crush the aforementioned to 500 mesh and obtain 25 parts Parts by weight of attapulgite and phosphogypsum crushed to a fineness of 500 mesh and 30 parts by weight are added to the aforementioned stirred solution, mixed evenly, and left for 4 days; wherein attapulgite can retain nutrients It can be combined with phosphogypsum to increase the air permeability of the soil and avoid soil compaction in saline-alkali land;

[0033] Then add 30 parts by weight of plant ash into the aforementioned mixed solution, stir evenly, heat to 45° C. for 3 days, and cool to room temperatur...

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Abstract

The invention provides a soil improvement method for saline and alkaline land. A nutrient prepared from attapulgite, plant ash, Bacillus subtilis, water and ardealite is scattered into the surface of the land and is prepared from components as follows: 20-24 parts of the attapulgite, 26-30 parts of the plant ash, 5-10 parts of the Bacillus subtilis, 60-65 parts of the water and 20-30 parts of the ardealite. The nutrient can well prevent nutrient substances from permeating underground layers, so that the saline and alkaline land can be improved more quickly within the effective time; meanwhile, the block structure of soil can be improved, the gas permeability of the soil can be better through the ardealite, the concentration can be reduced to the extent suitable for plant growth within only one quarter, the plantlet survival rate in the first quarter is 99%, meanwhile, the cost can be reduced, moisture can be better preserved, and increase of the saline and alkaline degree is avoided.

Description

technical field [0001] The invention relates to a method for improving soil, in particular to a method for improving soil in saline-alkali land. Background technique [0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. According to the incomplete statistics of UNESCO and FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares, of which my country is the largest 99.13 million hectares. The formation of alkaline soil and alkalized soil in my country is mostly related to the accumulation of carbonate in the soil, so the degree of alkalization is generally high, and plants in severe saline-alkali soil areas can hardly survive. [0003] The existing improvers can only slowly improve the salinity of saline-alkali land, and the water retention effect is not good, resulting in a poor improvement effect on saline-alkali land. Contents of the invention [0004] Aiming at...

Claims

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Application Information

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IPC IPC(8): C09K17/40C05G3/04C09K109/00C05G3/80
CPCC05D1/00C05D3/00C05F9/04C05G3/80C09K17/40C09K2109/00C05F9/00C05F11/08C05F17/00
Inventor 高程华
Owner 安徽养禾天生物科技有限公司
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