A kind of preparation method and control method of konjac soft rot prevention and control medicine prepared by Coptidis rhizome

A technology for soft rot and Coptis chinensis, applied in the field of plant disease control, can solve the problems that affect the killing effect of konjac soft rot pathogenic bacteria, it is difficult to achieve the expected control effect, and the fungicides are not targeted, and achieve excellent control. effect, significant control effect, significant bacteriostatic effect

Inactive Publication Date: 2021-01-26
LESHAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biocontrol bacteria have a certain effect on the control of konjac soft rot, but there are also some shortcomings: such as stability problems, most of the biocontrol bacteria are live bacterial preparations, which are affected by environmental conditions such as soil pH, fertility, temperature and humidity, and light in the field. , it is difficult to achieve the expected control effect. In addition, the bio-control bacteria are easily affected by other microorganisms in the field, and it is difficult to become the dominant bacterial group, and it is difficult to colonize, and the control effect will be greatly reduced.
[0005] Although many traditional Chinese medicine fungicides have been applied to the field of biopesticides, such as fungicides containing rhubarb extract and their compositions (ZL02123720.4), these traditional Chinese medicine fungicides are not very specific, which affects their use on konjac soft. The killing effect of pathogenic bacteria of rot, if the traditional Chinese medicine fungicide is to be applied to the prevention and treatment of konjac soft rot, it is necessary to find a good inhibitory and killing effect on the pathogenic bacteria of konjac soft rot from many traditional Chinese medicines with bactericidal effect. Only by prescribing the right medicine and its active ingredients, combined with high-efficiency and low-toxic chemical agents, and adopting the method of "combining traditional Chinese and Western medicine" to treat both symptoms and root causes, can the control effect be effectively improved. However, research in this area has not been reported yet, so there is no research on it. Prevention and control of konjac soft rot. Products with high efficiency control are used in konjac planting and production

Method used

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Effect test

Embodiment 1

[0024] As a preferred embodiment of the application, this embodiment discloses:

[0025] A method for preparing a medicine for preventing and treating konjac soft rot by using Coptidis rhizome. Coptidis rhizome is dried in the sun, fully pulverized through a 300-mesh sieve, and 100 g of pulverized Coptidis rhizome powder is taken, and 500 ml of 80% ethanol is added. Oscillate at a constant temperature for 48 hours at a speed of 1 min. After the constant temperature oscillation is completed, perform suction filtration. The filtrate is rotary evaporated to 150ml at 50°C to obtain an alcohol extract of Coptidis rhizome.

Embodiment 2

[0027] As a preferred embodiment of the application, this embodiment discloses:

[0028] A method for preparing a medicine for preventing and treating konjac soft rot by using Coptidis rhizome. Coptidis rhizome is dried in the sun, fully crushed through a 250-mesh sieve, 100 g of pulverized Coptidis rhizome powder is taken, 700 ml of 80% ethanol is added, and the mixture is shaken at a constant temperature at 35° C. After 50 hours, after the constant temperature oscillation was completed, suction filtration was carried out, and the suction filtrate was rotary evaporated to 200ml at 60°C to obtain an alcohol extract of Coptidis rhizome, and the residue of Coptidis rhizome after suction filtration was naturally sun-dried. The oscillation speed of the constant temperature oscillation is 150r / min. The alcohol extract of Coptidis rhizome obtained after evaporation was stored at a low temperature at 5°C.

Embodiment 3

[0030] As a preferred embodiment of the application, this embodiment discloses:

[0031]A method for preparing a medicine for preventing and treating konjac soft rot by using Coptidis rhizome. Coptis rhizome is dried in the sun, fully pulverized through a 260-mesh sieve, 100 g of pulverized Coptidis rhizome powder is taken, 600 ml of 80% ethanol is added, and the mixture is shaken at a constant temperature at 35° C. After 49 hours, after the constant temperature oscillation was completed, suction filtration was carried out, and the suction filtrate was rotary evaporated to 200ml at 55°C to obtain an alcohol extract of Coptidis rhizome, and the residue of Coptidis rhizome after suction filtration was naturally sun-dried. The oscillation speed of the constant temperature oscillation is 150r / min. The alcohol extract of Coptidis rhizome obtained after evaporation was stored at a low temperature at 5°C.

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Abstract

The invention discloses a method for preparing a konjac soft rot control chemical from rhizoma coptidis and a control method of the konjac soft rot control chemical, and relates to the technical fieldof plant disease control. The prepared konjac soft rot control chemical adopts alcohol extract of the traditional Chinese medicine rhizoma coptidis, and the chemical is sourced from the traditional herbal medicine and s environmentally friendly and harmless to human beings and livestock. According to the method for controlling the konjac soft rot by the konjac soft rot control chemical prepared from rhizoma coptidis, comprehensive sterilization components of the traditional Chinese medicine rhizoma coptidis extract and the quick-acting sterilization components of chemical bactericides are combined and have outstanding control effect on the konjac soft rot. Meanwhile, residual sterilization components and organic matter components of rhizoma coptidis powder are fully utilized, and have promoting effects on assisting in improving the control effect on soft rot, increasing soil organic matter and improving soil structure.

Description

technical field [0001] The invention relates to the technical field of plant disease prevention and control, and more specifically relates to a method for preparing a drug for preventing and treating konjac soft rot by using Coptis Rhizoma and a method for preventing and controlling the disease. Background technique [0002] Konjac (Amorphophallus konjac) is a perennial herbaceous plant of Araceae. It is a rare plant high in glucomannan, and its bulb glucomannan (KGM) content can be as high as about 60% of the dry weight. Konjac glucomannan is the best dietary fiber and the "seventh nutrient element" necessary for the human body. It is one of the first-choice foods for patients with gastrointestinal diseases such as hypertension, obesity, diabetes, constipation, and intestinal cancer. , fine chemicals, biomedicine and other fields have a wide range of applications. Therefore, the economic value of konjac is very high, and it is widely used in the fields of food, medicine an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/32A01N47/44A01P1/00
CPCA01N47/44A01N65/00A01N65/32
Inventor 周勇代小莹刘忠唐梅龚明福刘霞杨瑶君
Owner LESHAN NORMAL UNIV
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