Mixture of bacterial medicine for controlling vegetable epidemic disease and preparation method

A technology of Phytophthora bacterium and biocontrol agents, applied in botany equipment and methods, biocides, animal repellants, etc., can solve the problems of differences in the colonization ability of biocontrol factors, improve vegetable quality, and save production costs Effect

Inactive Publication Date: 2005-11-16
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that a single biocontrol factor is difficult to achieve the same control effect as the use of chemical fungicides under different environmental conditions; and the biocontrol factors are sensitive to fluctuations in the environmental conditions of the soil or the root circle of crops, under the ecological conditions of pathogenic bacteria in the field , the colonization ability of biological control factors is very different
At present, the research on biological control of vegetable diseases is mostly carried out in laboratories and greenhouses, and has not been used in large-scale production practice.

Method used

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  • Mixture of bacterial medicine for controlling vegetable epidemic disease and preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Jingyan Pepper No. 3, the main pepper variety grown in Beijing, was used to simulate the infection mode of pepper blight under natural conditions, and the pathogenic system was established by inoculating the pathogen with root irrigation method and spraying method, and the effects of different application methods on the fungus were studied. The effect of medicine mixture DMBS on the control of capsicum blight. The results are shown in Table 5 and Table 6. Under different pathogenic systems, the control effect of the fungal-drug mixture is related to the way of use of the agent. Drugs are more effective in preventing and controlling the spread of aboveground pathogens. However, no matter which inoculation method is used, it can be found that among the three treatments of single agent of fungicide, single agent of biocontrol bacteria and mixture of bacteria and drugs, the control effect of the single agent of biocontrol is not stable, while the mixture of bacteria and dru...

Embodiment 2

[0029] Using sweet pepper, a general-purpose susceptible variety of pepper blight, to simulate the infection mode of pepper blight under natural conditions, the pathogenic system was established by inoculating the pathogen by root irrigation method and spraying method, and the effects of different application methods on the bacteria were studied. The effect of medicine mixture DMBS on the control of capsicum blight. The results are shown in Table 7 and Table 8, and the rules are similar to those of Jingyan Pepper No. 3.

[0030] Tested strain

[0031]

[0032] fungicide

[0033] deal with

[0034]

[0035] Note: DMM is dimethomorph, BS is Bacillus subtilis, and DMBS is bacterial-drug mixture. The same below.

[0036]

[0037]

[0038]

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Abstract

A bacterium-chemial mixture for preventing and treating the diseases of vegetables is prepared through providing the biopreventing bacterium, fermenting culture, centrifugally depositing of fermented liquid, proportionally mixing it with powdered calcium carbonate and mixing it with bactericide.

Description

technical field [0001] The invention belongs to the field of chemical and biological soil treatment agents and preparation methods thereof, in particular to the field of a fungus-drug mixture capable of preventing and controlling vegetable blight and the preparation method thereof. Background technique [0002] Blight is a serious disease in vegetable production. Common blight mainly includes pepper blight, tomato late blight and cucumber blight. In my country, pepper blight is the most serious. In recent years, due to changes in varieties, cultivation systems, and fertilizer and water conditions, the disease has increased year by year, and the diseased area has expanded from south to north year by year. The death rate in severely diseased areas can reach more than 80%, and the yield loss is very significant. Capsicum blight can occur throughout the growth period of peppers, especially when peppers are budding and fruit-setting. Under favorable weather conditions, the dise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/02
Inventor 李健强尹敬芳刘西莉吴学宏刘鹏飞张文华
Owner CHINA AGRI UNIV
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