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Method of utilizing biomass charcoal to inhibit phytophthora nicotianae

A technology of tobacco black shank bacteria and biomass charcoal, applied in the direction of chemicals, botanical equipment and methods, biocides, etc. for biological control, to achieve good inhibitory effect, convenient use, and simple method

Inactive Publication Date: 2017-04-26
TOBACCO RES INST CHIN AGRI SCI ACAD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

According to the existing literature, the reported effects of biochar on plant diseases are mainly concentrated on peppers, tomatoes, asparagus, soybeans and other crops (EllenR.Graber et.al, 2010; Lehmann J, 2011; Jaiswal AK, 2013 ), and the research on tobacco and tobacco black shank has not been reported yet, and tobacco is one of the important economic crops in my country. Tobacco black shank is the main disease affecting its yield and quality. influence is necessary

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  • Method of utilizing biomass charcoal to inhibit phytophthora nicotianae
  • Method of utilizing biomass charcoal to inhibit phytophthora nicotianae
  • Method of utilizing biomass charcoal to inhibit phytophthora nicotianae

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Embodiment Construction

[0034] The invention provides a method of using biomass charcoal to suppress tobacco black shank bacteria, including

[0035] Method 1, configure the inhibition method with the addition of biochar medium,

[0036] Method two, the pH of the medium added with biochar is adjusted back to the suppression method of the original pH of the medium,

[0037] The third method is to configure the bacterial soil inhibition method.

[0038] Method 1 includes the following steps:

[0039] Configure oat medium: oatmeal 33g, agar powder 18g, deionized water 1000ml,

[0040] Add different proportions of rice husk charcoal and / or tobacco straw charcoal during the preparation of oat medium and measure the corresponding pH value;

[0041] The strains of blackleg were inoculated and the colony diameter was measured by the cross method, and the growth rate and inhibition rate of the mycelia of blackleg were calculated by the change of colony diameter after 2 days of cultivation.

[0042] Method...

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Abstract

The invention discloses a method of utilizing biomass charcoal to inhibit phytophthora nicotianae. The method includes the following steps: firstly, configuring and adding a biomass charcoal medium; secondly, adjusting pH with the added biomass charcoal medium to be original pH of the medium; and thirdly, configuring bacteria soil. The method is simple, is convenient to use, and has a great effect to inhibit phytophthora nicotianae. Two types of biomass charcoal different in proportion are added separately or added together to an oat medium, the influence of biomass charcoal on phytophthora nicotianae is determined through determination of relevant indexes, and relevant experiments are designed to conduct mechanism verification on the basis of the property of biomass charcoal. Brown soil is selected and rice husk charcoal with different proportions is added in a potted condition to verify an effect of biomass charcoal on phytophthora nicotianae prevention. Therefore, theoretical bases are provided for reasonable applications of biomass charcoal and related research and comprehensive control and treatment of phytophthora nicotianae.

Description

[0001] Technical field: [0002] The invention relates to the technical field of methods for suppressing tobacco pathogenic bacteria, in particular to a method for using biomass charcoal to suppress tobacco black shank pathogens. [0003] Background technique: [0004] Tobacco black shank is a devastating disease in tobacco production, which seriously restricts the production of tobacco leaves in various smoking areas in my country. According to incomplete statistics, the average annual economic loss caused by tobacco black shank in my country is more than 100 million yuan. Tobacco black shank bacteria can survive for 5 years or longer in soil without tobacco, and can survive for 18 months in air-dried soil. After infecting tobacco plants, it will seriously affect the improvement of tobacco leaf yield and quality. For the inhibition or control of black shank bacteria, chemical drugs are usually used, which pollute the environment a lot, and are not conducive to agricultural pr...

Claims

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Application Information

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IPC IPC(8): A01G13/00A01G1/00A01N61/00A01P3/00
CPCA01G13/00A01N61/00A01G22/00
Inventor 董建新管恩娜宋文静杨斌王鹏王耀斌王世建丁志勇吕国新梁洪波刘光亮
Owner TOBACCO RES INST CHIN AGRI SCI ACAD
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