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Method for improving recovering efficiency of cadmium polluted soil through lantana

A technology for cadmium-contaminated soil and lantana, which is applied in the field of phytoremediation of cadmium-contaminated soil, can solve problems such as less research on plant growth and restoration efficiency, and achieve the effects of improving restoration efficiency, promoting plant growth, and increasing the content of

Inactive Publication Date: 2017-07-11
苏碧云
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  • Claims
  • Application Information

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Problems solved by technology

At present, there are few studies on the interaction between earthworms and AMF and their joint effects on the forms of heavy metals in soil, and the growth and repair efficiency of plants under heavy metal stress.

Method used

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  • Method for improving recovering efficiency of cadmium polluted soil through lantana
  • Method for improving recovering efficiency of cadmium polluted soil through lantana
  • Method for improving recovering efficiency of cadmium polluted soil through lantana

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Embodiment 1

[0030] A method for improving the efficiency of lantana remediation of cadmium-contaminated soil, comprising the following steps:

[0031] S1. Propagation of AMF: Mix AMF with sterilized sand according to 2% inoculation amount, use corn as the host plant for propagation, remove the aboveground part of corn after four months, and dry the culture in the pot for 2 weeks Finally, chop it up, transfer it to a sterile bag, seal the cold meal, and use it as the inoculum of the bacterial agent;

[0032] S2. Seedling cultivation of lantana: cut branches in the field and cultivate them in the seedling field for 2 months;

[0033] S3. Transplanting of lantana and inoculation of AMF: transplant the cultivated lantana seedlings, and at the same time, evenly mix the inoculum into the soil at an inoculation amount of 3% by mass fraction;

[0034] S4. Addition of earthworms: After 2 weeks of transplanting lantana seedlings, select seedlings with a plant height of 15 cm and a ground diameter ...

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Abstract

The invention relates to a method for improving recovering efficiency of cadmium polluted soil through lantana. The method includes the specific steps that S1, AMP propagation expanding is carried out; S2, lantana seedling growing is carried out; S3, lantana transplanting and AMF inoculating are carried out; S4, earthworm adding is carried out; S5, field management is carried out; and S6, harvesting is carried out. According to the method, AMF inoculation and earthworm adding are carried out, growth of the lantana is promoted, cadmium in the soil is activated, the tolerance and the absorbing ability of the lantana to the cadmium are improved, the recovering efficiency of the cadmium polluted soil through the lantana is improved, the beneficial effects of being less in investment, good in recovering effect, easy to operate and the like are achieved, and the very good application and popularization value is achieved.

Description

technical field [0001] The invention relates to cadmium-contaminated soil phytoremediation technology, in particular to a method for improving the efficiency of lantana remediation of cadmium-contaminated soil. Background technique [0002] Cadmium is a non-essential heavy metal element with strong biological toxicity. When the soil and other environments are polluted by cadmium, cadmium is easy to endanger human health through the enrichment of the food chain. It has pathogenic, carcinogenic and mutagenic effects on the human body, and can induce Kidney decay, arthritis, cancer and other diseases. At present, the soil area polluted by cadmium in my country has reached 2.0×105 hm 2 , accounting for 1 / 6 of the total cultivated land area. Therefore, the remediation and treatment of cadmium-contaminated soil has attracted extensive attention of researchers. [0003] Compared with physical and chemical methods to remediate soil heavy metal pollution, phytoremediation has the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/10B09C1/00
CPCB09C1/105B09C1/00B09C2101/00
Inventor 苏碧云
Owner 苏碧云
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