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Recompounded microbe germicide for preventing and controlling banded sclerotial blight and green smut of rice

A rice sheath blight and microbial technology, applied in the fields of application, biocide, animal repellent, etc., can solve the problems of no microbial preparations, microbial preparations and chemical pesticides, no high-efficiency Bacillus subtilis, etc. Achieve sustainable disease control, rapid antibacterial effect, and reduce the incidence of disease

Inactive Publication Date: 2004-01-21
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are no microbial preparations with high-efficiency Bacillus subtilis, nor are there any microbial preparations or compound preparations of microbial preparations and chemical pesticides that are widely used in farmland to prevent and control rice diseases

Method used

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  • Recompounded microbe germicide for preventing and controlling banded sclerotial blight and green smut of rice
  • Recompounded microbe germicide for preventing and controlling banded sclerotial blight and green smut of rice

Examples

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Embodiment 1

[0019] Implementation example 1, Bacillus subtilis B-916 fermented liquid and Jinggangmycin are compounded into the product of the present invention: the spore content is greater than or equal to 90% of the thalline and the bacterium content is greater than or equal to 2 × 10 10 cfu / ml Bacillus subtilis B-916 fermentation broth and 5% Jinggangmycin are compounded according to the volume ratio of 1:1, and stirred evenly to obtain the microbial compounded pesticide product (wenquning) of the present invention. A benzoic acid preservative accounting for 2‰ of the total volume can be added to the above-mentioned microbial compound pesticide to prevent the agent from spoiling. After adding the benzoic acid preservative, stir evenly, and then pack.

Embodiment 2

[0020] Implementation example 2, the industrial production method of microbial composite pesticide product (ventroning) of the present invention: first according to routine method, in laboratory, bacillus subtilis bacterial strain B-916 is activated, then carries out bacterial strain cultivation according to conventional method in laboratory, Transfer the activated strain into 500ml of YPG (tryptone 5g, yeast extract 5g, glucose 5g, water 1000ml) culture solution, culture at 120 rpm, 28°C for 48 hours, according to the inoculum size 1:150, pH value 7.0-7.4 ,) for fermentation culture, the fermentation time is 18-48 hours, during which the seed tank is tested once every 2 hours, when the bacteria content is greater than or equal to 10 10 For cfu / ml, according to the inoculum size 1:150-1:300, transfer the fermented liquid in the seed tank to a large fermenter for fermentation (temperature 28-32°C, pH value 7.0-7.4, and appropriate amount of disinfectant can be added when there a...

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Abstract

The present invention is recompounded microbe germicide for preventing and controlling banded sclerotial blight and green smut of rice. The recompounded microbe germicide is recompounded through thefermentation culture of Bacillus subtilis and recompounding the fermented liquid with certain content of Bacillus subtilis and Jinggangmeisu. It is used in preventing and controlling banded sclerotial blight and green smut of rice in field via utilizing the complementary superiority of Bacillus subtilis and Jinggangmeisu. It has high functions of preventing and controlling banded sclerotial blight and green smut of rice, less influence on rice quality, stable germicidal effect and long preservation period.

Description

(1) Technical field [0001] The invention relates to a microbial compound pesticide, in particular to a microbial compound pesticide capable of antagonizing rice sheath blight and rice smut. (2) Background technology [0002] Rice sheath blight and rice false smut are the main diseases in rice production. Rice sheath blight occurs in major rice-growing areas in the United States, South America, Europe, and Africa. The disease is more severe in South China, Central China and East China, and also occurs in North China, Northeast China and Yunnan rice fields, and it is more serious in some areas. Generally, the production of the disease is reduced by 5-10%, and the production of severe fields is reduced by 50-70%. Rice false smut occurs in all rice-growing regions in my country, and rice false smut can cause yield loss, and more seriously, affect rice quality. It is reported that rice smut disease grains are highly toxic to humans, and feeding livestock and poultry with diseas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/02
Inventor 陈志谊刘永锋
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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