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A method for irrigation and salt washing of salinized soil and its detection method

A detection method, salinization technology, applied in chemical instruments and methods, soil preparation methods, soil material testing, etc., can solve the problem that the irregular distribution of salt cannot be observed with the naked eye, it is difficult to ensure effective soil leaching effect, and the regional distribution of salt Differences and other issues, to achieve better and more accurate test data, effective monitoring of leaching effect, rinsing depth and effect improvement

Active Publication Date: 2020-04-24
INST OF SOIL FERTILIZER & WATER SAVING AGRI GANSU ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the same plot, there are also large differences in the regional distribution of salt, and the irregular distribution of salt cannot be observed with the naked eye
Difficult to ensure effective soil leaching effect
Not only is it easy to cause waste of water resources, but also the rinsing effect will be greatly reduced

Method used

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  • A method for irrigation and salt washing of salinized soil and its detection method
  • A method for irrigation and salt washing of salinized soil and its detection method
  • A method for irrigation and salt washing of salinized soil and its detection method

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Embodiment Construction

[0029] A salt washing method for saline soil irrigation, comprising the steps of:

[0030] a. Plow the salinized soil, the plowing depth is 30-40cm, and apply the improver to the surface layer of the plow, the application rate of the improver is 400kg / mu, and the improver is composed of phosphogypsum, ammonium humate, ferrous sulfate One or more compositions of , zinc sulfate and manganese sulfate;

[0031] b. The amount of irrigation water per mu of salinized soil is 150-200m 3 , The amount of water is poured into the rinse several times.

[0032] The improving agent in the step a is prepared from the following parts by weight: 60-100 parts of phosphogypsum, 10-40 parts of ammonium humate, 10-20 parts of ferrous sulfate, 0.3 parts of zinc sulfate, and 0.2 parts of manganese sulfate.

[0033] Preferably, the improving agent in step a is prepared by the following parts by weight: 60 parts of phosphogypsum, 30 parts of ammonium humate, 10 parts of ferrous sulfate, 0.3 parts of...

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Abstract

The invention relates to the technical field of soil salinization treatment, in particular to a salt-washing method for salinized soil irrigation and its detection method. The salinized soil is plowed to a plowing depth of 30-40cm, and an amendment is applied to the surface layer of the plowing. , the application rate of the amendment is 400kg / acre, the amendment is composed of one or more of phosphogypsum, ammonium humate, ferrous sulfate, zinc sulfate and manganese sulfate; the ion exchange produced by the amendment reduces the content of the salinized soil ion content and restore soil properties. Irrigation volume per mu of saline soil is 150-200m 3 , the amount of water is poured into the rinse in multiple times. The amount of water is poured evenly into three times so that the leaching depth of salt ions reaches more than 80cm. The leaching depth effectively covers the plant roots and reduces the impact of soil salt ions. The last leaching in the divided leaching provides a better reaction environment for the next leaching. , compared with one-time pouring and rinsing, the rinsing depth and effect are increased by 30-50%.

Description

technical field [0001] The invention relates to the technical field of soil salinization treatment, in particular to a method for irrigation and salt washing of salinized soil and a detection method thereof. Background technique [0002] Salinized soil is harmful to the normal growth of crops due to high salt content. In order to alleviate the stress of salt on crops, soil leaching is a physical and chemical process that can achieve the separation, sequestration, volume reduction and harmless transformation of hazardous substances. Soil leaching is to wash out the excessive soluble salt in the soil or press it to the bottom layer by irrigation, so as to reduce the salt content of the soil in the plow layer and meet the requirements of normal growth of crops. [0003] The distribution of salt ions in salinized soil has a high degree of spatial variability. In the same plot, there are also large differences in the regional distribution of salinity, and the irregular distribu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02C09K17/40G01N33/24
CPCA01B79/02G01N33/24C09K17/40G01N33/245
Inventor 郭全恩曹诗瑜南丽丽
Owner INST OF SOIL FERTILIZER & WATER SAVING AGRI GANSU ACAD OF AGRI SCI
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