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Pumpkin-glossy ganoderma intercropping method for repairing organic polluted soil

A technology of organic pollution and pumpkins, applied in the field of environmental biosciences, can solve problems such as difficult planting

Inactive Publication Date: 2011-02-02
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the growth and development of Ganoderma lucidum requires suitable environmental conditions such as nutrition, temperature, humidity, air, light, and pH, it is generally necessary to build a greenhouse or erect a sunshade in the field cultivation process, and it is still a problem to plant it in open-air farmland.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Test soil: a farmland soil contaminated by polycyclic aromatic hydrocarbons in the Yangtze River Delta, the total content of 16 polycyclic aromatic hydrocarbon components before remediation was 1.4 mgkg -1 .

[0015] Implementation method: make a border with a width of 2m, a length of 10m, and a height of 20cm on the contaminated soil, set up drainage ditches around it, and dig a 20cm-deep ganoderma bed in the border, and put the Ganoderma lucidum culture bag that has been cultured under 18℃. Open the bag and place the inoculation side up in the shiba bed. The row spacing of the culture bag is 6cm, and the covering soil is 2.5cm thick. The gap is filled with soil to keep the soil moist; continue the cultivation at 27°C and 88% humidity. Promote it to naturally produce mushrooms. After the pumpkin seeds are disinfected, use the seedling tray to grow seedlings for 20 days, and select healthy pumpkin seedlings to transplant on both sides of the above-mentioned lucid bed. The ...

Embodiment 2

[0018] Ganoderma lucidum culture package culture: Ganoderma lucidum culture package is sterilized, and when the temperature in the culture package is cooled to about 30℃, the Ganoderma lucidum strain is inserted, and then the culture package is placed at 20~25℃, air humidity 55%-65% , Cultivate for 30-40 days in the dark or low light environment, and the hyphae will grow in bags; Pumpkin seedlings: After the pumpkin seeds are disinfected, use the seedling tray to grow seedlings for 15-25 days. Make a border with a width of 2m, a length of 10-15m, and a height of 20-25cm on the organic contaminated soil, set up drainage ditches around the border, and dig a bed of mushrooms with a depth of 18-20cm in the border. The Ganoderma lucidum culture bag that has completed the culture management is opened, and the inoculation side is placed on the bed. The row spacing of the culture bag is 5~7cm, and the cover is 2~3cm thick. The gap is filled with soil to keep the soil moist; Continue to...

Embodiment 3

[0020] It is basically the same as Example 1, but the test soil is a certain PCB contaminated farmland soil in the Yangtze River Delta. The total content of 18 PCB components before restoration is 250 μgkg -1 . The natural degradation rate of PCBs in the control treatment soil was less than 1%, the pumpkin planting treatment was 11%, and the pumpkin-ganoderma intercropping treatment was 24%. The content of PCBs in pumpkin stems, leaves and fruits are 0.67 and 0.58 μgkg respectively -1 , The content of PCB in Ganoderma lucidum fruiting body is 0.55μgkg -1 .

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PUM

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Abstract

The invention discloses a pumpkin-glossy ganoderma intercropping method for repairing organic polluted soil, which comprises the following steps of: making a furrow on the organic polluted soil, arranging drainage ditches on four sides of the furrow, digging a glossy ganoderma bed in the furrow, opening a culture bag, vertically arranging the culture bag in the furrow bed in a mode that the inoculation surface is upward, covering the bag with soil, filling gaps by using soil, and keeping the soil moist; continuously culturing the culture bag in the open air and promoting the culture bag to grow the glossy ganoderma naturally; and transplanting vigorous pumpkin seedlings on two sides of the glossy ganoderma bed, constructing a pergola by using a plurality of pumpkin seedlings, shading the glossy ganoderma seed entities by the grown pumpkin stems and leaves, and providing CO2 by the glossy ganoderma seed entities to promote the photosynthesis of the pumpkin plants. The intercropping system promotes degradation or removes the organic polluted soil by using the pumpkin roots, the glossy ganoderma culture bag and the spore powder till the glossy ganoderma seed entities are mature and the growth period of the pumpkin is finished. The method can effectively realize efficient repair of the organic polluted soil, realizes safe production of the pumpkin and the glossy ganoderma at the same time of repairing, and is particularly suitable for control of repair of the polycyclic aromatic hydrocarbon, polychlorinated biphenyl and phthalate ester polluted soil.

Description

1. Technical Field [0001] The invention relates to biological application technology in the field of environmental biological sciences, in particular to a pumpkin-ganoderma intercropping method for repairing organic contaminated soil. 2. Background technology [0002] Soil organic pollution is soil pollution caused by organic matter, mainly including pesticides, polycyclic aromatic hydrocarbons, PCBs, petroleum, methane and other organic pollutants. Under biological and non-biological action, the organic matter in the soil can be transformed and degraded into products with different stability, or eventually become inorganic matter. However, those persistent organic pollutants (POPs) that persist in the environment and have a long half-life, can accumulate through the food web and cause adverse effects on human health and the environment, they are highly toxic, persistent, The four characteristics of bioaccumulation and lipophilicity and water repellency can be amplified by enric...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G1/04
Inventor 林先贵胡君利李晶秦华白建峰
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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