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A method of using soil nematodes to restore soil fertility

A soil nematode and soil remediation technology is applied in the restoration of polluted soil, land preparation methods, applications, etc., to achieve high economic and ecological benefits, easy degradation, and soil fertility.

Active Publication Date: 2020-12-29
QINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, the problem in the prior art is that there is a lack of a method for remediating soil fertility that can degrade polycyclic aromatic hydrocarbon organic matter and metal pollution in soil

Method used

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  • A method of using soil nematodes to restore soil fertility

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Comparison scheme
Effect test

Embodiment 1

[0040] A method of utilizing soil nematodes to restore soil fertility, comprising the following steps:

[0041] Step 1, in the area to be repaired, a number of deep trenches are arranged in parallel and at intervals, the deep trenches are 25-30cm deep, 10-15cm wide, and the distance between adjacent deep trenches is 1m; the soil between adjacent deep trenches weighs It is a flat ridge, and in the flat ridge, several shallow grooves are arranged in parallel and at intervals along the direction perpendicular to the deep grooves. The depth of the shallow grooves is 15-20cm, and the width is 15-20cm. The distance between adjacent shallow grooves is 5m.

[0042]Step 2, spraying the soil nematode remediation agent in the shallow trench, the soil nematode remediation agent is made by fully mixing the following components by weight: 800 parts of soil nematode suspension, 3 parts of humic acid, chlorinated 3 parts of ammonium; the soil nematodes are root-knot nematodes, and the concent...

Embodiment 2

[0048] A method of utilizing soil nematodes to restore soil fertility, comprising the following steps:

[0049] Step 1, in the area to be repaired, set several deep trenches in parallel and at intervals, the deep trenches are 35-40cm deep, 20-25cm wide, and the distance between adjacent deep trenches is 2m; the soil between adjacent deep trenches weighs It is a flat ridge, and in the flat ridge, several shallow grooves are arranged parallel to and spaced apart from the direction perpendicular to the deep grooves. The depth of the shallow grooves is 10-15cm, the width is 10-15cm, and the distance between adjacent shallow grooves is 3m.

[0050] Step 2: Spray the soil nematode remediation agent in the shallow trench, and the soil nematode remediation agent is made by fully mixing the following components by weight: 500 parts of soil nematode suspension, 1 part of humic acid, chlorinated 1 part of ammonium; the soil nematode is root-knot nematode, and the soil nematode concentrat...

Embodiment 3

[0056] A method of utilizing soil nematodes to restore soil fertility, comprising the following steps:

[0057] Step 1, in the area to be repaired, set several deep trenches in parallel and at intervals, the deep trenches are 30-35cm deep, 10-15cm wide, and the distance between adjacent deep trenches is 1.5m; the soil between adjacent deep trenches It is called a flat ridge. In the flat ridge, several shallow grooves are parallel and spaced along the direction perpendicular to the deep grooves. The depth of the shallow grooves is 15-20cm, and the width is 15-20cm. The distance between adjacent shallow grooves is 4m.

[0058] Step 2, spraying the soil nematode remediation agent in the shallow groove, the soil nematode remediation agent is made by fully mixing the following components by weight: 600 parts of soil nematode suspension, 2 parts of humic acid, chlorinated 2 parts of ammonium; the soil nematodes are root-knot nematodes, and the concentration of soil nematodes in the ...

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Abstract

The invention belongs to the field of soil fertility remediation methods, and particularly relates to a method for restoring soil fertility by utilizing soil nematodes. The method comprises the following steps: arranging a plurality of criss-crossed deep trenches and shallow trenches at intervals in a to-be-restored region; spraying a soil nematode restoring agent into the shallow trenches, wherein the soil nematode restoring agent is prepared by fully mixing the following components in parts by weight: 500-800 parts of a soil nematode suspension, 1-3 parts of humic acid and 1-3 parts of ammonium chloride; scattering apatite in the to-be-restored region; carrying out disinfecting and killing operation by using a soil nematode insecticide; and filling the deep trenches with an organic fertilizer. According to the method provided by the invention, organic matter in the soil can be effectively degraded, the metal content of the soil can be reduced, the soil environment can be effectivelyimproved, soil fertility can be restored, the application prospect is good, and high economic benefit and ecological benefit are achieved.

Description

technical field [0001] The invention belongs to the field of soil fertility restoration methods, and in particular relates to a method for utilizing soil nematodes to restore soil fertility. Background technique [0002] The coastal zone is the area where sea-land interaction is active and most sensitive to human activities and globalization. It is the key object for studying land-sea interaction. The Beibu Gulf region of Guangxi is one of the sensitive areas, including the three cities of Beihai, Qinzhou, and Fangchenggang. According to Hu Jinjun's "Distribution Characteristics of ~(137)Cs and Heavy Metals in Beibu Gulf Soil in Guangxi", it is shown that there are heavy metals such as Cd and Cu in the soil of Beibu Gulf in Guangxi. This pollution may be caused by the nuclear power plant in Guangxi Beibu Gulf. construction impact. Due to long-term excessive fertilization of farmland and marine organic pollution, there are still polycyclic aromatic hydrocarbons in the soil ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00A01B79/02
Inventor 孙慧李继光唐政李慧李忠芳王其传娄翼来
Owner QINZHOU UNIV
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