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Method for reducing honeysuckle cadmium accumulation and increasing yield of honeysuckle by means of glomus intraradices

A technology of Glomus intraroote and Glomus intraroote, which is applied in the direction of soil preparation methods, botanical equipment and methods, applications, etc., can solve the problems of reducing the accumulation of cadmium in honeysuckle, achieve the improvement of mineral nutrition status, good effect, The effect of low running cost

Inactive Publication Date: 2016-06-15
SOUTH CHINA NORMAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0005] At present, there is no report on the use of mycorrhizal fungi to reduce the accumulation of cadmium in honeysuckle

Method used

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  • Method for reducing honeysuckle cadmium accumulation and increasing yield of honeysuckle by means of glomus intraradices
  • Method for reducing honeysuckle cadmium accumulation and increasing yield of honeysuckle by means of glomus intraradices
  • Method for reducing honeysuckle cadmium accumulation and increasing yield of honeysuckle by means of glomus intraradices

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Embodiment 1

[0045] 1. Propagation and culture of test strains and preparation of bacterial agents

[0046] Rhizophagus intraradices (Rhizophagus intraradices, referred to as Ri) BGCAH01 was provided by the Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences.

[0047] After using corn (Zeamays) as a host plant for potted propagation, the mixture containing host plant root segments, fungal hyphae, mycorrhizal fungal spores and potting soil is used as an inoculant. The specific process is as follows:

[0048] Fill the sterilized sand (according to the weight ratio, sand:soil=1:1) culture medium to 4 / 5 of the plastic basin. According to the inoculum amount of 4% (w:w), the inoculant of Glomus intraradices was evenly spread on the substrate as a thin layer. Then cover the sterilized substrate 2cm, water, sow 10-15 corn seeds / pot. Cover with 0.5cm sterilized substrate, and then move to the greenhouse for cultivation.

[0049] Harvest after 5 mont...

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Abstract

The invention discloses a method for reducing honeysuckle cadmium accumulation and increasing the yield of honeysuckle by means of glomus intraradices. According to the method, glomus intraradices and honeysuckle are used for symbiotic cultivation. Specifically, after glomus intraradices is subjected to propagation cultivation by means of a host plant, a mixture containing host plant root sections, fungus hyphae, mycorrhiza fungal spores and cultivation soil is harvested, namely a glomus intraradices inoculant; then, the glomus intraradices inoculant is inoculated in a culture substrate for honeysuckle cultivation. The method can promote growth of honeysuckle and increase the yield. More importantly, cadmium can be prevented from transferring from the root to the overground portions, and the concentration of cadmium of the overground portions (stems, leaves and flowers) is reduced. A means is provided for safe honeysuckle production in soil polluted by cadmium, and the method plays an important role in honeysuckle production and application. The method is good in effect, free of secondary pollution and low in cost. A new thinking and a new direction are provided for development and utilization of glomus intraradices.

Description

technical field [0001] The invention belongs to the technical field of heavy metal pollution restoration. More specifically, it relates to a method for reducing cadmium accumulation and increasing the yield of honeysuckle by using Glomus intrarhagicus. Background technique [0002] Due to human activities such as farmland sewage irrigation, solid waste application, mining and smelting, soil cadmium pollution is becoming more and more serious. Cadmium is highly mobile and highly toxic in soil, and is one of the most toxic inorganic pollutants in the environment. Cadmium enters the plant body after being absorbed by plants, and can be enriched into the human body through the food chain, seriously threatening agricultural production and human health. For large areas of moderately and lightly polluted cultivated land, there is currently no economically feasible technical means to completely remove heavy metals from soil. The contradiction between a large population and a smal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01B79/02
CPCA01B79/02A01G22/00
Inventor 靖元孝江秋云卓逢钟亿珠
Owner SOUTH CHINA NORMAL UNIVERSITY
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