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A method for washing salt and reducing alkalinity of saline soil

A technology for saline soil and salt washing, applied in the agricultural field, can solve problems such as the difficulty of soil washing salt, achieve the effects of improving the ecological environment, promoting saline-alkali land restoration and soil improvement technology, and alleviating the scarcity of freshwater resources

Active Publication Date: 2021-02-05
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a method for washing salt and reducing alkalinity of saline soil, which can solve the problems of difficulty in washing salt and alkalization of soil in arid and salinized areas in the north, and has the advantages of simple method, controllable cost, and easy application. , applicable to the improvement of saline-alkali land in northern my country, soil restoration and the improvement of regional ecological service capabilities, etc.

Method used

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  • A method for washing salt and reducing alkalinity of saline soil
  • A method for washing salt and reducing alkalinity of saline soil
  • A method for washing salt and reducing alkalinity of saline soil

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Embodiment Construction

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Such as Figure 1-3 Shown, a kind of saline soil washes salt and reduces alkali method, comprises the steps:

[0029] Step 1), using salt water to irrigate the saline-alkali land and waiting to freeze into salt water ice;

[0030] In step 2), the salt water ice is radiated and heated; the salt water ice is melted and infiltrated.

[0031] As described in this embodiment, the salinity of the underground salt water used in the step 1) is less than or equal to 35g / L

[0032] As described in this embodim...

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Abstract

The invention relates to the field of agricultural technology, in particular to a method for washing salt and reducing alkalinity of saline soil, comprising the following steps: step 1), using salt water to irrigate the saline-alkali land and waiting for freezing into salt water ice; step 2), treating the salt water The ice is heated by radiation; the salt water ice is melted and infiltrated. The beneficial effect of the invention is that the traditional hard metal tube is replaced by the rubber tube, which is soft in texture and suitable for installation in a narrow space, wear-resistant, non-conductive, high in safety, simple in manufacture and low in cost.

Description

technical field [0001] The invention relates to the technical field of agriculture, in particular to a method for washing salt and reducing alkali of saline soil. Background technique [0002] Salinization and alkalization of soil and water are often limiting factors for soil development and utilization, and are also urgent problems to be solved in many countries, especially in arid and semi-arid regions, certain river deltas and plain areas with poor drainage. [0003] The total area of ​​saline soil in the world is about 9.5×108hm 2 , accounting for 7.26% of the earth's land area, the total area of ​​saline soil in my country is 3.6×107hm 2 Among them, the problems of soil salinization and alkalization in the north are obvious. Generally speaking, irrigation in arid areas will inevitably increase the salinity of the soil (mineral elements in the irrigation water accumulate on the soil surface), unless there is a good drainage system; but even with a good irrigation and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/00
CPCA01B79/00
Inventor 张化唐伟史培军何春阳王静爱陶军
Owner BEIJING NORMAL UNIVERSITY
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