A method for enhancing the absorption of CD in soil by kenaf

A technology of kenaf and soil, applied in the restoration of polluted soil, botany equipment and methods, seed coating/seed dressing, etc., can solve problems such as loss, environmental problems, fertilizer waste, etc., to prevent damage and avoid Effects of secondary pollution, increased contact area and contact time
CN106550749BActive Publication Date: 2019-05-21INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
Publication Date
2019-05-21

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Abstract

The invention provides a method for improving absorption capacity of kenaf to Cd in soil, belongs to the technical field of crop cultivation and agricultural environment conservation and recovery, and particularly relates to a kenaf planting method for recovering heavy metal cadmium-contaminated soil. Kenaf, as a traditional fiber crop, has the capacities of high growth speed, high biomass and high resistance to Cd, and becomes a pioneer substitute crop in regulation of agriculture structures of heavy metal cadmium-contaminated soil. Although the Cd resistance of kenaf is widely recognized, to widey plant kenaf as a crop for recovery has not been popularized yet, one of the purposes of the method is to promote growth of root hairs of kenaf, increase the density of the root hairs and make the large number of root hairs to be forked. Based on the above purposes, the invention provides a cultivation method with an inductor directly acting on root tips of kenaf. By means of the method, the purposes of restraining the root-knot nematode disease and greatly improving absorption capacity of kenaf to Cd in soil are further achieved.
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Description

technical field

[0001] The invention belongs to the technical fields of crop cultivation and agricultural environment conservation and restoration, and in particular relates to a kenaf planting method for repairing soil polluted by heavy metal cadmium. Background technique

[0002] Heavy metal control is a global issue of modern agriculture. The problem of cadmium (Cd) pollution in farmland is particularly prominent. It is reported that 95,000-450,000 tons of Cd are emitted into soil every year worldwide. Excessive Cd pollution not only reduces the yield and quality of crops, but also affects human and animal health through the food chain, leading to cancer or deformity. Traditional remediation methods for soil heavy metal pollution usually use physical and chemical techniques, such as physical separation and chemical passivation. The principle is mainly to reduce the concentration of pollutants on the soil surface or enhance the stability of heavy metals in the soil, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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