Angelica root rhizosphere efficient phosphate-solubilizing bacterium and microbial inoculum prepared from same and application thereof

A technology of phosphate-solubilizing bacteria and angelica, applied in the direction of application, biochemical equipment and methods, immobilized on or in the inorganic carrier, can solve the problems that the microbial ecosystem has not yet been reported, and achieve the improvement of bioavailability and phosphate fertilizer Use efficiency, promote root growth, improve the effect of soil structure
CN102250784AInactive Publication Date: 2011-11-23NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
Publication Date
2011-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an angelica root rhizosphere efficient phosphate-solubilizing bacterium and a microbial inoculum prepared from the same and application thereof. The phosphate-solubilizing bacterium is bacillus sp.DGP01 which is collected in the China General Microbiological Culture Collection Center (Address: Datun Road, Chaoyang District, Beijing, 100101) with the collection number CGMCCNo.4755 on April 7, 2011. The microbial inoculum of the phosphate-solubilizing bacterium is prepared by the following steps of: inoculating a bacillus sp.DGP01 strain into a seed culture medium shakeflask and performing shaking culturing for an exponential growth phase; inoculating the cultured strain into a seeding tank which is filled with a fermentation culture medium and culturing for an exponential growth phase; and inoculating the fermentation liquor into a production tank which is filled with a fermentation culture medium for culturing. By adopting the phosphate-solubilizing bacterium, slightly-soluble inorganic phosphorus can be transformed into high-quality phosphorus compounds which can be directly absorbed and utilized by plants, the biological effectiveness of slightly-soluble phosphorus in soil can be enhanced, the utilization efficiency of a phosphorus fertilizer is increased, the fertilizer is saved, and the yield is increased; and moreover, the phosphate-solubilizing bacterium plays an important role in culturing and utilizing the ecological fertility of soil and keeping the ecological balance of agriculture, and has an application value.
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Description

technical field

[0001] The invention relates to the technical field of biological preparations, in particular to Bacillus sp.DG01, a high-efficiency phosphate-solubilizing bacterium in the rhizosphere of Angelica sinensis, and the bacterial preparation prepared by fermentation and its application. Background technique

[0002] Phosphorus is one of the mineral elements necessary for plant growth and development. It is an important component of nucleic acids, enzymes, coenzymes, and ATP in plants. The amount of phosphorus absorbed by crops is significantly positively correlated with its biomass and yield. When plants are deficient in phosphorus, There will be reduced or delayed tillering, delayed heading, late maturity, reduced number of grains per ear, unfulfilled grains, bald corn ears, rape pods, sweet potatoes, and smaller potato pieces. Therefore, phosphorus is extremely important for agricultural production. However, 74% of the arable land in my country is deficient in p...

Claims

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