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Compound bacterium for preventing and treating tobacco phytophthora, preparation method and application thereof

A technology of tobacco phytophthora and compound bacterial agent, which is applied in the field of plant cultivation, can solve the problems of decreased soil organic matter content and the inability of antagonistic bacteria to reproduce normally, and achieve the effect of preventing damage

Active Publication Date: 2017-03-15
广州市林业和园林科学研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, due to the impact of chemical fertilizers, tobacco farmers have applied less organic fertilizers and more chemical fertilizers, resulting in a decrease in soil organic matter content and the inability of antagonistic bacteria to reproduce normally, making it difficult to control large areas

Method used

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Examples

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Effect test

Embodiment 1

[0029] The compound bacterial agent for preventing and curing Phytophthora tobacco in the embodiment of the present invention is mainly made of the following bacteria:

[0030] Streptomyces gracilis, photosynthetic bacteria, nitrifying bacteria, nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria, all bacteria are single colony bacteria. Of course, the compound antibacterial agent for preventing and controlling Phytophthora tobacco may also include other antagonistic bacteria, which is not specifically limited in this embodiment.

[0031] The preparation method of the compound bacterial agent for preventing and curing Phytophthora tobacco in the embodiment of the present invention includes the following steps:

[0032] Pick Streptomyces tenuifolia and add it to Gao's No. 1 liquid medium; pick photosynthetic bacteria to inoculate into the yeast extract liquid medium; pick nitrifying bacteria, nitrogen-fixing bacteria, phosphate solubilizing ba...

Embodiment 2

[0035] The compound bacterial agent for preventing and curing Phytophthora tobacco in the embodiment of the present invention is mainly made of the following bacteria:

[0036] Streptomyces gracilis, photosynthetic bacteria, nitrifying bacteria, nitrogen-fixing bacteria, phosphate solubilizing bacteria, potassium solubilizing bacteria, Bacillus subtilis and Bacillus megaterium, all bacteria are single colony bacteria. Of course, the compound antibacterial agent for preventing and controlling Phytophthora tobacco may also include other antagonistic bacteria, which is not specifically limited in this embodiment.

[0037] The preparation method of the compound bacterial agent for preventing and curing Phytophthora tobacco in the embodiment of the present invention includes the following steps:

[0038] Pick Streptomyces flavus and add it to Gao's No. 1 liquid medium; pick Streptomyces flavus and add it to Gao's No. 1 liquid medium; pick photosynthetic bacteria to inoculate into yeast ex...

Embodiment 3

[0041] The compound bacterial agent for preventing and curing Phytophthora tobacco in the embodiment of the present invention is mainly made of the following bacteria:

[0042] Streptomyces flavus, photosynthetic bacteria, nitrifying bacteria, nitrogen-fixing bacteria, phosphate solubilizing bacteria, potassium solubilizing bacteria, Bacillus subtilis, Bacillus megaterium, Trichoderma viride, Saccharomyces cerevisiae, Candida and Candida unculis, all bacteria are It is a single colony of bacteria. Of course, the compound antibacterial agent for preventing and controlling Phytophthora tobacco may also include other antagonistic bacteria, which is not specifically limited in this embodiment.

[0043] The preparation method of the compound bacterial agent for preventing and curing Phytophthora tobacco in the embodiment of the present invention includes the following steps:

[0044] Pick Streptomyces flavus and add it to Gao's No. 1 liquid medium; pick Streptomyces flavus and add it to ...

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PUM

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Abstract

The invention relates to the technical field of plant cultivation and specifically relates to a compound bacterium for preventing and treating tobacco phytophthora, a preparation method and an application thereof. The compound bacterium for preventing and treating tobacco phytophthora is mainly prepared from the following bacteria: streptomyces microflavus, photosynthetic bacteria, nitrobacteria, nitrogen-fixing bacteria, phosphate-releasing bacteria and potassium-releasing bacteria. Streptomyces microflavus is selected as antagonistic bacteria and photosynthetic bacteria, nitrobacteria, nitrogen-fixing bacteria, phosphate-releasing bacteria and potassium-releasing bacteria are selected as nutritional functional bacteria, so that the compound bacterium for preventing and treating tobacco phytophthora, provided by the invention, has a certain antagonistic effect to the pathogenic bacteria of the tobacco phytophthora and can effectively prevent the harm of the tobacco phytophthora. The compound bacterium for preventing and treating tobacco phytophthora, provided by the invention, can be directly used for planting the plants, inoculating composts and producing bio-organic fertilizer.

Description

Technical field [0001] The present invention relates to the technical field of plant cultivation, in particular to a composite fungus agent for preventing and curing Phytophthora tobacco and its preparation method and application. Background technique [0002] Phytophthora is a group of important phytopathogenic bacteria, which is highly destructive and harmful to host plants. With the changes in the structure of agricultural production in my country, the massive development of fruit trees, vegetables, flowers, Chinese herbal medicines, and facility agriculture, the threat of plant diseases to agricultural production has become increasingly serious. The causative bacterium of Catharanthus blight is tobacco blight, and the temperature is 28℃ and the relative humidity of air is higher than 85%. Flowers, stems, and leaves can all be affected. The diseased part initially grows grayish-brown oily spots, and after expansion, it becomes dark brown irregular shape. Under humid condition...

Claims

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Application Information

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IPC IPC(8): C12N1/20C12N1/16C12N1/14A01N63/00A01N63/02A01P3/00C12R1/465C12R1/01C12R1/065C12R1/125C12R1/11C12R1/885C12R1/865C12R1/72
CPCA01N63/00A01N63/10C12N1/14C12N1/16C12N1/20
Inventor 陈莹刘可星阮琳张俊涛鄢海印
Owner 广州市林业和园林科学研究院
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