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Compound microbial preparation for promoting paddy growth and preparation method thereof

A technology of composite microorganisms and microbial carriers, which is applied in the field of composite microbial preparations and its preparation, can solve problems such as single function, nitrogen fixation activities are easily restricted by many conditions, and no symbiotic organizational structure has been formed, so as to improve soil structure and crop growth. Effects of stress resistance, inhibition of growth and reproduction

Inactive Publication Date: 2009-09-09
SHANGHAI CHUANGBO SOIL REMEDIATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing nitrogen-fixing microbial fertilizers are generally a single strain, and the activity of the bacteria is generally 10 6 -10 8 Cfu / gram, the function is relatively single, crops and microorganisms are only loosely combined, and there is no symbiotic organizational structure between them, so nitrogen fixation is easily restricted by many conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A compound microbial preparation for promoting the growth of rice, consisting of 20 parts by weight of a bacterial culture and 80 parts by weight of a microbial carrier; wherein, the bacterial culture consists of the following raw materials in parts by weight: 2 parts of Bacillus subtilis , 2 parts of Bacillus megaterium, 5 parts of Saccharomyces cerevisiae and 1 part of Rhizobium, all of the above strains can be purchased at the China Agricultural Microorganism Culture Collection and Management Center; the microbial carrier is zeolite.

[0033] The specific steps of the preparation method of the above-mentioned composite microbial preparation for promoting rice growth are:

[0034] Step 1: Mix the first liquid culture medium with Tween-80 at a weight ratio of 100:0.3 after being sterilized at 115°C for 15 minutes, and mix the mixture of Bacillus subtilis, Bacillus megaterium and Saccharomyces cerevisiae at a weight ratio of 1: 50 was inoculated in the above-mentioned f...

Embodiment 2

[0040] A compound microbial preparation for promoting the growth of rice, consisting of 40 parts by weight of bacterial culture and 60 parts by weight of microbial carrier; wherein, the bacterial culture is composed of the following raw materials in parts by weight: 8 parts of Bacillus subtilis , 8 parts of Bacillus megaterium, 10 parts of Saccharomyces cerevisiae and 4 parts of Rhizobium, all of the above strains can be purchased at the China Agricultural Microorganism Culture Collection and Management Center; the microbial carrier is bentonite.

[0041] The specific steps of the preparation method of the above-mentioned composite microbial preparation for promoting rice growth are:

[0042] Step 1: Mix the first liquid culture medium with Tween-80 at a weight ratio of 100:0.5 after being sterilized at 130°C for 30 minutes, and mix the mixture of Bacillus subtilis, Bacillus megaterium and Saccharomyces cerevisiae at a weight ratio of 1: Inoculate in the above-mentioned first ...

Embodiment 3

[0048] A compound microbial preparation for promoting the growth of rice, consisting of 40 parts by weight of bacterial culture and 60 parts by weight of microbial carrier; wherein, the bacterial culture consists of the following raw materials in parts by weight: 6 parts of Bacillus subtilis , 6 parts of Bacillus megaterium, 6 parts of Saccharomyces cerevisiae and 3 parts of Rhizobium, all of the above strains can be purchased at the China Agricultural Microorganism Culture Collection and Management Center; the microbial carrier is zeolite and bentonite with a weight ratio of 2:8 mixture.

[0049] The specific steps of the preparation method of the above-mentioned composite microbial preparation for promoting rice growth are:

[0050] Step 1: Mix the first liquid culture medium with Tween-80 in a weight ratio of 100:0.3 after being sterilized at 125°C for 20 minutes, and mix the mixture of Bacillus subtilis, Bacillus megaterium and Saccharomyces cerevisiae in a weight ratio of...

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Abstract

The invention relates to a compound microbial preparation for promoting paddy growth and a preparation method thereof. The compound microbial preparation for promoting paddy growth is characterized by consisting of 20-40 parts by weight of a microbial strain culture and 60-80 parts by weight of a microbial carrier; wherein, the microbial strain culture consists of the following raw materials in parts by weight: 2-8 parts of bacilli subtilis, 2-8 parts of bacilli megaterium, 5-10 parts of saccharomyces cerevisiae and 1-4 parts of rhizobia; the microbial carrier is zeolite or bentonite or mixture thereof. The compound microbial preparation has the advantages of promoting growth of beneficial microbes, enhancing absorption of nitrogen, phosphorous, potassium and other organic substances for paddy root system and promoting normal growth of the root system, thus promoting the paddy growth and reducing chemical fertilizer application.

Description

technical field [0001] The invention relates to a compound microbial preparation for promoting rice growth and a preparation method thereof, which is applied to plant roots in soil to fix nitrogen in the air as organic nitrogen or to supplement nitrogen in soil by salt, and belongs to the technical field of soil improvement. Background technique [0002] Rice is the main food crop in developing countries. Whether in Asia with a population of 2 billion, or in Africa and Latin America with a population of nearly 10 million, people mostly use rice as their main food. According to the report of the International Rice Research Institute (IRRI), in order to meet the food needs of the growing population, the annual global rice production must increase from 520 million tons to 760 million tons by 2020. However, under the condition that the cultivated land area remains unchanged or even decreases, this goal can only be achieved by increasing the rice yield per unit area of ​​cultivat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/04A01N63/00C12N1/20C12N1/16A01P21/00C12R1/125C12R1/11C12R1/41C12R1/865
Inventor 江瀚
Owner SHANGHAI CHUANGBO SOIL REMEDIATION ENG
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