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Composition for controlling powdery mildew of astragalus and preparation method of composition

A powdery mildew and composition technology, applied in the field of plant protection agents, can solve the problems that resources cannot be reasonably used, the growth of astragalus is affected, and the root cure is difficult, and the preparation method is simple and controllable, strong resistance, and activity and durability are improved. Effect

Inactive Publication Date: 2018-11-16
胡江宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above methods can have a certain therapeutic effect on astragalus powdery mildew to a certain extent, they are difficult to cure. At the same time, the environment of the planting area and the collocation of crops need to be strictly controlled in the prevention process, and the resources cannot be used rationally. Remove powdery mildew, which can easily cause phytotoxicity and affect the growth of Astragalus membranaceus

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method for preventing and treating astragalus powdery mildew composition, comprising the following steps:

[0032] 1. Take active Monascus, add it to the culture medium, shake at constant temperature for 3 days, keep the temperature at 25°C, and get the initial culture medium; take half of the initial culture medium, add 3 times the amount of water, and add potassium dihydrogen phosphate , adjust the pH value to 7.5, add protease, control the temperature at 50°C, perform enzymatic hydrolysis for 3 hours, and centrifuge to obtain the filtrate (1). Put the remaining initial culture solution above into the strain culture tank, the mass ratio of the culture liquid in the strain culture tank to the initial culture liquid is 1:0.02, add the filtrate (1) obtained above, keep the temperature at 25°C, and culture in airtight for 15 days , that is, the optimized Monascus strain can be obtained.

[0033] 2. Inoculate the optimized Monascus seed solution into the fer...

Embodiment 2

[0037] A preparation method for preventing and treating astragalus powdery mildew composition, comprising the following steps:

[0038] 1. Take active Monascus, add it to the culture medium, shake at constant temperature for 2 days, keep the temperature at 20°C, and get the initial culture medium; take half of the initial culture medium, add 2 times the amount of water, and add potassium dihydrogen phosphate , adjust the pH value to 7, add protease, control the temperature at 40°C, perform enzymatic hydrolysis for 2 hours, and centrifuge to obtain the filtrate (1). Put the remaining initial culture solution above into the strain culture tank, the mass ratio of the culture liquid in the strain culture tank to the initial culture liquid is 1:0.01, add the filtrate (1) obtained above, keep the temperature at 20°C, and culture in airtight for 10 days , that is, the optimized Monascus strain can be obtained.

[0039] 2. Inoculate the optimized Monascus seed solution into the ferme...

Embodiment 3

[0043] A preparation method for preventing and treating astragalus powdery mildew composition, comprising the following steps:

[0044] 1. Take active Monascus, add it to the culture medium, shake at constant temperature for 4 days, keep the temperature at 30°C, and get the initial culture medium; take half of the initial culture medium, add 4 times the amount of water, and add potassium dihydrogen phosphate , adjust the pH value to 8, add protease, control the temperature at 60°C, perform enzymatic hydrolysis for 4 hours, and centrifuge to obtain the filtrate (1). Put the remaining initial culture solution above into the strain culture tank, the mass ratio of the culture liquid in the strain culture tank to the initial culture liquid is 1:0.03, add the filtrate (1) obtained above, keep the temperature at 30°C, and culture in airtight for 20 days , that is, the optimized Monascus strain can be obtained.

[0045] 2. Inoculate the optimized Monascus seed solution into the ferme...

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PUM

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Abstract

The invention discloses composition for controlling powdery mildew of astragalus and a preparation method of the composition. After monascus purpureus is cultured in a specific culture solution, partof thalli are subjected to enzymolysis, an enzymatic hydrolysate is obtained, the remaining thalli are further stimulated by the enzymatic hydrolysate and the specific culture solution, and an optimized monascus purpureus strain is obtained; the optimized monascus purpureus strain is fermented, traditional Chinese medicine extract and chromobacterium are added for further culture, and the composition with higher activity is obtained. The substance with higher activity is cultured by stimulating microbial metabolism, the preparation method of the composition is simple and controllable, no toxicsubstances are added, and the obtained composition does not contaminate soil and has great economic effect and social effect.

Description

technical field [0001] The invention relates to a composition for preventing and treating plant powdery mildew and a preparation method thereof, in particular to a preparation method for a composition for preventing and treating astragalus powdery mildew, and belongs to the field of plant protection agents. Background technique [0002] Astragalus is a perennial herb of the leguminous family, and its roots are used as medicine. Astragalus membranaceus has the effects of invigorating qi and consolidating the surface, diuresis, detoxification and expulsion of pus, and promoting muscle regeneration. It is mainly used to treat shortness of breath, collapse, heart palpitations, spontaneous sweating, body deficiency and edema, chronic nephritis, dehydration, chronic diarrhea, qi deficiency, qi and blood deficiency, and central qi subsidence , has the effects of antibacterial and anti-inflammatory, antihypertensive and diuretic, detoxification and choleretic, and is a commonly used...

Claims

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Application Information

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IPC IPC(8): A01N63/04A01P3/00C12P1/04C12R1/01C12R1/66
CPCA01N63/30C12P1/04
Inventor 胡江宇
Owner 胡江宇
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