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Technology for utilizing agricultural microbial agent to prevent and treat crops polluted by soil heavy metal

A technology of microbial inoculants and composite microbial inoculants, applied in the field of bioengineering, can solve problems such as inability to decompose and take out soil

Active Publication Date: 2012-07-18
BEIJING DANLU INDAL +3
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The agricultural microbial bacterial agent of the present invention can neither decompose nor take out heavy metals in the soil

Method used

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  • Technology for utilizing agricultural microbial agent to prevent and treat crops polluted by soil heavy metal

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Experimental program
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Embodiment Construction

[0018] 1. The main process of manufacturing powdered agricultural microbial agent is divided into two parts, liquid fermentation and solid adsorption.

[0019] 1. The liquid bacterial agent fermentation process is to connect the bacteria to the first-level fermentation tank for fermentation, and control the temperature, dissolved oxygen, pressure, pH value, stirring speed and other data in the tank to make the bacteria rapidly divide and grow. When the number of bacteria reaches the requirement, the fermentation can be stopped to cool down and the tank can be put to finish the work. It can also continue to be connected to the secondary fermentation tank for fermentation according to needs and equipment conditions, and the third-level fermentation tank can be fermented to expand production.

[0020] 2. The solid adsorption process is to mix the fermented qualified bacterial liquid into the powdered adsorbent in proportion, and then it becomes a powdered agricultural microbial b...

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Abstract

The invention relates to a technology for utilizing an agricultural microbial agent to prevent and treat crops polluted by soil heavy metal, belonging to the technical field of bioengineering. According to the technology, the agricultural microbial agent is adopted to prevent the roots of the crops to absorb soil heavy metal so as to achieve the purpose of preventing and treating pollution. According to the invention, the good functional bacteria, namely bacillus subtilis and bacillus mucilaginosus in the soil with overproof heavy metal, are adopted. The functional bacteria are utilized to absorb heavy metal ions in the growth process so as to conduct oxidation-reduction reaction, helpful substances are replaced to form methylation, and the generated organic metal is discharged. Due to the action of the floras added repeatedly, the micro molecules of the heavy metal are combined into macromolecules which can not be absorbed by the roots of the crops, so that the pollution is blocked.

Description

technical field [0001] "A technology for preventing and controlling soil heavy metal-polluted crops with agricultural microbial agent" belongs to the field of bioengineering technology. Microbiology, Molecular Biology, Soil Microbiology, Biochemistry and Cytology involving Biology, Soil Dynamics, Soil Chemistry. Background technique [0002] With the development of the economy, the cultivated land in some parts of our country suffers from industrial pollution, and the heavy metal pollution in the soil makes the heavy metal content of the crops exceed the standard. Contaminated crops enter the human body through the food chain and cause harm. There are five main types of soil heavy metal pollution that are more harmful to the human body. [0003] Mercury: After ingestion, it sinks directly into the liver, causing great damage to the brain, nerves, and vision. Natural water contains 0.01 mg per liter of water, which will cause human poisoning. [0004] Cadmium: lead to hig...

Claims

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Application Information

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IPC IPC(8): B09C1/10
Inventor 高昭远林淑华赵全胜
Owner BEIJING DANLU INDAL
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