A kind of corn rhizosphere growth-promoting bacterium ym3 and its application

A technology of rhizosphere growth-promoting bacteria and corn, which is applied in the field of agricultural microorganisms to achieve the effects of promoting plant root development, increasing yield, and increasing soil available potassium content

Inactive Publication Date: 2018-04-17
HENAN AGRICULTURAL UNIVERSITY
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Problems solved by technology

Therefore, the separation of rhizosphere growth-promoting bacteria from fluvo-aquic soil, and the formation of a symbiotic system with crops, and the use of bioremediation to improve fluvo-aquic soil have become current research hotspots. However, there have been no public reports on rhizosphere growth-promoting bacteria dedicated to corn.

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  • A kind of corn rhizosphere growth-promoting bacterium ym3 and its application
  • A kind of corn rhizosphere growth-promoting bacterium ym3 and its application
  • A kind of corn rhizosphere growth-promoting bacterium ym3 and its application

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Embodiment Construction

[0023] The specific implementation of the present invention will be described in detail below in combination with specific situations.

[0024] Preservation information of biological materials: corn rhizosphere growth-promoting bacteria YM3, classified as Bacillus subtilis ( Bacillus subtilis ), on October 31, 2014, was deposited in the General Microbiology Center of the China Committee for the Collection of Microbial Cultures, the address is the Institute of Microbiology, Chinese Academy of Sciences, No. 3, No. 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.9897.

[0025] Table 1 Basic properties of the tested soil

[0026] soil

Organic carbon (g / kg)

Total phosphorus (g / kg)

Available phosphorus (mg / kg)

Total potassium (g / kg)

Available Potassium (mg / kg)

pH(H2O)

Sandy fluvo-aquic soil

1.91

0.29

3.44

19.56

20.42

7.39

[0027] Table 2 Physiological and biochemical ch...

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Abstract

The present invention relates to corn rhizosphere growth-promoting bacterium YM3 and its application. The corn rhizosphere growth-promoting bacterium is corn rhizosphere growth-promoting bacterium YM3. The General Microorganism Center of the Culture Collection Management Committee, the preservation number is CGMCC No.9897, which can effectively solve the problem of converting insoluble potassium-containing silicates into soluble potassium salts, decomposing organic phosphorus, improving the utilization rate of fertilizers, and effectively used in the cultivation of corn , to promote the growth and yield of corn, is a major innovation in microorganisms and corn cultivation.

Description

technical field [0001] The invention relates to the field of agricultural microorganisms, in particular to a corn rhizosphere growth-promoting bacterium YM3 and its application. Background technique [0002] Sandy fluvo-aquic soil has strong permeability and good ventilation, and aerobic microbial activities are dominant, which can promote the decomposition of organic matter and accelerate the mineralization of organic matter. And the soil is loose and easy to cultivate. The capillary action of the soil is strong, the water runs fast, and there is a phenomenon of "night tide". The suitable tillage period is also long, and the seedlings are easy to stand; but the nutrient content is low, the fertilizer retention performance is poor, and the crops are prone to defertilization and premature aging in the later stage. At present, most of the soil has been used as arable land, and its utilization rate reaches 92.3%. Targeted improvement measures in the future: plant according t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20A01N63/00A01P21/00C09K17/00C12R1/125C09K101/00
CPCA01N63/00C12N1/205C12R2001/125
Inventor 韩燕来姜瑛汪强王献李培培王祎李慧
Owner HENAN AGRICULTURAL UNIVERSITY
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