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Salt elimination method for saline-alkali soil improvement

The technology of saline-alkali land and drainage board is applied in the field of improving salt-discharging of saline-alkali land.

Active Publication Date: 2021-05-28
浙江萧建集团有限公司
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when the area of ​​saline-alkali land is large, the time consumed for washing salt is also very short, and the process of waiting for infiltration will also be affected by pore water pressure, etc., resulting in low treatment efficiency

Method used

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  • Salt elimination method for saline-alkali soil improvement

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Embodiment Construction

[0035] The following is attached Figure 1-2 The application is described in further detail.

[0036] The embodiment of the present application discloses an improved salt discharge method in saline-alkali land. refer to figure 1 , saline-alkali land improved salt discharge method includes the following steps:

[0037] S1, preliminary soil treatment;

[0038] combine figure 1 with figure 2 , using equipment such as turning and throwing machines to loosen the soil, so that the surface soil of the saline-alkali land is loosened to form a loose soil layer 1, and the saline-alkali soil below the loose soil layer 1 is named the bottom soil layer 2. Sprinkle alkaline soil amendments on the loose soil layer 1, such as commonly used amendments such as gypsum, phosphogypsum, and humic acid.

[0039] Slowly and uniformly inject water into the loose soil layer 1, and perform water injection every 30-60 minutes, and ensure that the remaining water height above the loose soil layer 1...

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Abstract

The invention relates to a salt elimination method for saline-alkali soil improvement, and belongs to the technical field of saline-alkali soil improvement. The salt elimination method for saline-alkali soil improvement comprises the following steps that S1, soil primary treatment is performed, specifically, water is injected into soil; S2, soil drainage treatment is performed, specifically, after the soil absorbs the injected water, the upper surface of the soil is leveled, plastic drainage plates are driven into the leveled soil, a balancing weight is placed between every two adjacent drainage plates, standing is performed until accumulated water appears on the upper surface of the soil, and the accumulated water is extracted; and S3, salt is discharged, specifically, a sponge is placed on the soil, and the sponge is dried after the sponge is completely wetted, so that salt crystals are separated out on the sponge, and the salt crystals are shaken off and collected on the sponge. The salt elimination method for saline-alkali soil improvement has the effect of improving the saline-alkali soil treatment efficiency.

Description

technical field [0001] The present application relates to the technical field of soil improvement in saline-alkali land, in particular to a method for improving saline-alkali land and discharging salt. Background technique [0002] The saline-alkali land contains a lot of salt, which affects the normal growth of plants, causing the saline-alkali land to become barren and unable to be used effectively. In order to increase land utilization, the control of saline-alkali land becomes particularly important. [0003] At present, the method of dealing with saline-alkali land is usually salt washing, that is, pouring water into the saline-alkali land to dissolve the soil salt, and drain the soluble saline-alkali in the topsoil into the deep soil or wash it out through infiltration, and then infiltrate into the drainage ditch to get rid of it. . [0004] However, when the area of ​​saline-alkali land is large, the time consumed for washing salt is also very short, and the process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00
CPCA01B79/00
Inventor 李亚沈伟东许鲁伟
Owner 浙江萧建集团有限公司