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A kind of mountain bean root, Guanzhong compound agricultural fungicide and preparation method thereof

An agricultural fungicide, the technology of Guanzhong, applied in the field of Shandougen, Guanzhong compound agricultural fungicide and its preparation, can solve the problems of residual resistance, rampant and other problems, and achieves the reduction of the burden on farmers, the effect is good, and the production technology simple effect

Active Publication Date: 2017-11-17
BEIJING UNION UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the "3R" problem caused by the long-term and large-scale unreasonable use of traditional chemical pesticides, that is, the residue, resistance, and rampantness is becoming more and more serious, which has aroused widespread concern in the society and poses a huge threat to the environment and human health.

Method used

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  • A kind of mountain bean root, Guanzhong compound agricultural fungicide and preparation method thereof
  • A kind of mountain bean root, Guanzhong compound agricultural fungicide and preparation method thereof
  • A kind of mountain bean root, Guanzhong compound agricultural fungicide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The raw materials are mixed according to the ratio of 60 parts of mountain bean root, 30 parts of peony, and 10 parts of Burnet, crushed, extracted with microwave water for 30 minutes, the weight ratio of material to water is 1:5, pH=6.0, microwave power is 500W, microwave temperature at 75°C, extracted twice, combined the extracts, filtered, and the filtrate was alcohol-precipitated, vacuum-filtered, and concentrated to obtain a compound extract of 1.5 g crude drug / mL.

[0036] Take 600mL of the compound extract, put it into a stirring tank for stirring, add 20mL of alkyl polyglycosides, 100mL of glycerol, 6g of citric acid, and 3g of chitosan in sequence, add water to make the volume to 1000mL, and stir evenly to obtain an agricultural fungicide. The dilution stability, heat stability and low temperature stability of the agricultural fungicide are all qualified.

Embodiment 2

[0038] The raw materials are mixed according to the ratio of 50 parts of mountain bean root, 40 parts of peony root, and 10 parts of Burnet, crushed, extracted with microwave water for 30 minutes, the weight ratio of material to water is 1:4, pH=7.0, microwave power is 500W, microwave temperature at 55°C, extracted twice, combined the extracts, filtered, and the filtrate was alcohol-precipitated, vacuum-filtered, and concentrated to obtain a compound extract of 0.8 g crude drug / mL.

[0039] Take 600 mL of the compound extract, put it into a stirring tank for stirring, add 80 mL of alkyl polyglycosides and 80 mL of glycerol in sequence, add water to make the volume to 1000 mL, and stir evenly to obtain an agricultural fungicide. The dilution stability, heat stability and low temperature stability of the agricultural fungicide are all qualified.

Embodiment 3

[0041] The raw materials are mixed according to the ratio of 40 parts of mountain bean root, 40 parts of peony root, and 20 parts of Burnet, crushed, and extracted with microwave water for 30 minutes. The weight ratio of material to water is 1:8, pH=8.0, microwave power is 500W, microwave temperature at 65°C, extracted twice, combined the extracts, filtered, and the filtrate was alcohol-precipitated, vacuum-filtered, and concentrated to obtain 2.0 g crude drug / mL compound extract.

[0042] Take 600 mL of the compound extract, put it into a stirring tank for stirring, add 80 mL of octylphenol polyoxyethylene ether, 70 mL of glycerol, and 10 g of chitosan in sequence, add water to make the volume to 1000 mL, and stir evenly to obtain an agricultural fungicide. The dilution stability, heat stability and low temperature stability of the agricultural fungicide are all qualified.

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PUM

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Abstract

The invention discloses an agricultural bactericide compounded with bean root and guanzhong and a preparation method thereof. The fungicide is a water agent compounded with the compound extract of mountain bean root, guanzhong and burnet as the main component, and added with auxiliary agents. It is composed of the following components by weight percentage: 50-80% of the compound extract, Surfactant 2-8%, synergist 0-8%, antifreeze 5-10%, and the balance is water. Its preparation method is as follows: (1) mix the root of the mountain bean root, Guanzhong and burnet in proportion, pulverize, extract with microwave water, precipitate the filtrate with alcohol, vacuum filter, and concentrate to obtain a compound extract of 0.8-2.0g crude drug / mL; (2) add antifreeze, tensio-active agent, synergist successively in compound extract, mix, add water constant volume, wherein by weight percentage, compound extract 50-80%, surfactant 2-8%, increase Efficacy agent 0-8%, antifreeze 5-10%, and the balance is water. The agricultural fungicide of the invention has low cost, good effect, no toxicity and no residue, simple production process and is suitable for industrialized production.

Description

technical field [0001] The invention relates to an agricultural bactericide compounded with bean root and guanzhong and a preparation method thereof, belonging to the technical field of pesticides. Background technique [0002] Botrytis cinerea, anthracnose, powdery mildew, downy mildew, early blight, brown rot, rust and other crop diseases of fruit trees, vegetables, tea trees, and Chinese herbal medicines have a wide range of diseases and are difficult to control. At present, chemical pesticides are an effective means to prevent and treat plant diseases, and play a huge role in ensuring high and stable crop yields. However, the "3R" problem caused by the long-term and large-scale unreasonable use of traditional chemical pesticides, that is, the residue, resistance, and re-emergence is becoming more and more serious, which has aroused widespread concern in the society and poses a huge threat to the environment and human health. Therefore, it is more and more urgent to seek...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/34A01P3/00
Inventor 葛喜珍裴庆慧田平芳
Owner BEIJING UNION UNIVERSITY