CN101926368B - Green pollution-free pesticide and preparation method thereof - Google Patents
Green pollution-free pesticide and preparation method thereof Download PDFInfo
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- CN101926368B CN101926368B CN 201010265011 CN201010265011A CN101926368B CN 101926368 B CN101926368 B CN 101926368B CN 201010265011 CN201010265011 CN 201010265011 CN 201010265011 A CN201010265011 A CN 201010265011A CN 101926368 B CN101926368 B CN 101926368B
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Abstract
The invention belongs to the technical field of pesticides, in particular to a green pollution-free pesticide and a preparation method thereof. The pesticide is prepared by taking extractives of Pieris multifida, Platycladus and Viburnum odoratissimum as main components, and adding surface active agent, suspending agent, penetrating agent and synergist into the main component at a certain proportion; or the pesticide is prepared by taking the extractive of the Viburnum odoratissimum as a main component and adding solvent, emulsifier, the suspending agent, the penetrating agent and the synergist into the main component at a certain proportion. The green pollution-free pesticide in the invention is a bactericide which has efficient prevention and cure effect on rice sheath blight, a certaineffect on rice blast, no toxicity and harmfulness to men and beasts and no pollution on the ecological environment. The green pollution-free pesticide in the invention has the advantages of easily obtained raw materials, simple production process, low cost and rapid effect taking.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to a kind of green nuisance free pesticide and preparation method thereof.
Background technology
China is a large agricultural country, and paddy rice is the main cereal crops of China, and the paddy rice fungal disease has influenced output and the quality of paddy rice greatly, and rice sheath blight disease is topmost disease in the paddy rice plantation.Rice sheath blight disease (Rice sheath blight) is by Rhizoctonia solani Kuhn
(Rhizoctonia solani) cause, be distributed widely in each rice production area of the world, generally can cause 10%～30% production loss, the underproduction 50% during high the morbidity.Current is chemical pesticide be used to what prevent and treat rice disease mostly, and along with environmental protection and germ pesticide resistance problem become increasingly conspicuous, using and exporting to sell of chemical pesticide run into increasing resistance, and chemical control is subjected to stern challenge.Immunity or high anti-kind are not found in anti-banded sclerotial blight breeding so far as yet.Jinggangmeisu is the important biomolecule agricultural chemicals that China prevents and treats rice sheath blight disease always since the seventies in 20th century, and still, there is certain drawback with a kind of farm antibiotics control in long-time, large-area applications with a kind of disease.And botanical pesticide is nontoxic to people and animals, and is environmentally friendly and production technology is simple, more and more is subjected to people's favor now, is the emphasis of developing agricultural chemicals from now on.
Summary of the invention
The purpose of this invention is to provide and a kind ofly be prepared from by plant extracts, to tangible green nuisance free pesticide of control efficiency of rice sheath blight disease and preparation method thereof.
First purpose of the present invention provides a kind of green nuisance free pesticide.This green nuisance free pesticide consists of: the quality percentage composition is the mixed plant extract of 85-97%, the surfactant of 0.1-0.2%, the suspending agent of 2-5%, the bleeding agent of 0-5%, the synergist of 0-5%; The composition of described mixed plant extract is: the quality percentage composition is that grass meal end, curb limit, the quality percentage composition of 15-30% is that thousand Bai Fenmo, the quality percentage composition of 15-40% is the Japanese sweet viburnum powder of 40-70%.
Second purpose of the present invention provides a kind of method for preparing above-mentioned green nuisance free pesticide, and this method comprises the step of following order:
(1) curb limit grass blade and leaf, thousand CedarLeaves, Japanese coral leaves are dried to constant weight mechanical disintegration to 60 sieve mesh under 50 ℃-60 ℃;
(2) after the ratio that is respectively 15-30%, 15-40%, 40-70% by mass percentage with previous step gained curb limit grass, thousand cypresses, Japanese sweet viburnum powder is mixed, be 95% ethanol in mass ratio with concentration again be that the ratio of 1:4-1:6 is mixed and joined and can revolve in the vapor tight tank, extract with the rotating speed rotation of 50-150rpm under the room temperature and emit extract after 36-48 hour;
(3) to add the concentration of same ratio amount in the step (2) in the vapor tight tank again be 95% ethanol to revolving, rotation was extracted 36-48 hour again, emit behind the extract and merge with a preceding extract, with the extracting liquid filtering that merges, filtrate decompression is concentrated into volume about 20%;
(4) adding quality in the plant extraction liquid after concentrating to previous step is the adsorbent of mixed plant powder quality 1/4-1/3, and vacuum drying below 60 ℃ behind the mixing obtains the mixed plant extract;
(5) be respectively to be ground into fine powder after the ratio of 85-97%, 0.1-0.2%, 2-5%, 0-5%, 0-5% is mixed by mass percentage with mixed plant extract, surfactant, suspending agent, bleeding agent, synergist, bag distribution packaging again.
The control efficiency to rice sheath blight disease is up to 80% to the green nuisance free pesticide that first purpose of the present invention provides under the working concentration recommending, and the action effect of rice blast is also had about 30%, and effect is not second to jinggangmeisu.And curb limit grass, thousand cypresses, Japanese sweet viburnum all is the frequently seen plants that is easy to get, therefore, it is low that the present invention has a cost, to the environment nonhazardous, the simple advantage of production technology.
The 3rd purpose of the present invention provides a kind of green nuisance free pesticide.This green nuisance free pesticide consists of: the quality percentage composition is the Japanese sweet viburnum extract of 60-80%, the solvent of 10-20%, the emulsifier of 5-15%, the suspending agent of 2-5%, the bleeding agent of 0-5%, the synergist of 0-5%.
The 4th purpose of the present invention provides the method for the 3rd green nuisance free pesticide that purpose provides of a kind of the present invention of preparation, and this method comprises the step of following order:
(1) Japanese coral leaf is dried to constant weight mechanical disintegration to 60 sieve mesh under 50 ℃-60 ℃;
(2) to be 95% ethanol with previous step gained Japan sweet viburnum powder and concentration in the ratio of mass ratio 1:4-1:6 join can revolve in the vapor tight tank, rotating speed rotation extraction with 50-150rpm under the room temperature was emitted extract after 36-48 hour, the concentration that adds same ratio again in the vapor tight tank is that 95% ethanol repeats to extract once, secondary raffinate merges the back and filters, filtrate decompression is concentrated into 20% volume, namely gets Japanese sweet viburnum extract;
(3) in previous step gained plant extraction liquid, be respectively Japanese sweet viburnum extract, the solvent of 10-20%, the emulsifier of 5-15%, the suspending agent of 2-5%, the bleeding agent of 0-5%, the synergist adding solvent of 0-5%, emulsifier, suspending agent, bleeding agent, the synergist of 60-80% by mass percentage;
(4) above-mentioned mixed solution stirring was handled 4 hours at stabilization pond after 20-30 minute, can becomes bottle then, namely obtains finished product.
The 3rd green nuisance free pesticide that purpose provides of the present invention control efficiency to rice sheath blight disease under the recommendation working concentration is up to 75%.Japan's sweet viburnum is China's frequently seen plants, and its vitality is strong, and disease is few, and the manufacturing process of this agricultural chemicals is simple, to the environment nonhazardous.
Embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1:
Get curb limit grass blade and leaf part, thousand CedarLeaves, Japanese coral leaves dry to constant weight under in the baking box 50 ℃, be crushed to about 60 sieve meshes with cracker.
Then, get grass meal end, the curb limit 30kg that previous step makes, thousand Bai Fenmo 15kg, Japanese sweet viburnum powder 55kg in revolving in the vapor tight tank, add 500L concentration again and be 95% ethanol.Vapor tight tank is emitted extract with the rotation of 100rpm speed after 48 hours at normal temperatures, and then adding 400L 95% ethanol extracted 40 hours again in the past vapor tight tank, merged twice extract, filters back vacuum in other vapor tight tank and is concentrated into about 200L.
Add 320 purpose diatomite 30kg in the plant extraction liquid after concentrate, low-temperature vacuum drying obtains the mixed plant extract behind the mixing.
In the mixed plant extract, add ammonium sulfate 5kg, sodium alkyl benzene sulfonate 100g again, add diatomite then mixture is gathered to 50kg.
At last, mixture is ground into fine powder, becomes the bag packing by every bag 100g.
During use, every bag of medicinal powder is converted clear water to the 10-15 kilogram, be sprayed on paddy rice lower floor, dispenser is spaced apart 20 days.
Embodiment 2:
Get curb limit grass blade and leaf part, thousand CedarLeaves, Japanese coral leaves dry to constant weight under in the baking box 55 ℃, be crushed to about 60 sieve meshes with cracker.
Then, get grass meal end, the curb limit 15kg that previous step makes, thousand Bai Fenmo 40kg, Japanese sweet viburnum powder 45kg in revolving in the vapor tight tank, add 500L 95% ethanol again.Vapor tight tank is emitted extract with the rotation of 100rpm speed after 48 hours at normal temperatures, and then repeats to extract once toward the interior 500L of adding of vapor tight tank 95% ethanol, merges twice extract, filters back vacuum in other vapor tight tank and is concentrated into about 200L.
Add 320 purpose diatomite 25kg in the plant extraction liquid after concentrate, low-temperature vacuum drying obtains the mixed plant extract behind the mixing.
In the mixed plant extract, add ammonium sulfate 2kg, sodium alkyl benzene sulfonate 200g, synergist 1kg again, add diatomite then mixture is gathered to 50kg.
At last, mixture is ground into fine powder, becomes the bag packing by every bag 100g.
During use, every bag of medicinal powder is converted clear water to the 10-15 kilogram, be sprayed on paddy rice lower floor, dispenser is spaced apart 20 days.
Embodiment 3:
Get curb limit grass blade and leaf part, thousand CedarLeaves, Japanese coral leaves dry to constant weight under in the baking box 60 ℃, be crushed to about 60 sieve meshes with cracker.
Then, get grass meal end, the curb limit 15kg that previous step makes, thousand Bai Fenmo 15kg, Japanese sweet viburnum powder 70kg in revolving in the vapor tight tank, add 600L 95% ethanol again.Vapor tight tank is emitted extract with the rotation of 100rpm speed after 48 hours at normal temperatures, and then adding 400L 95% ethanol repeated to extract 40 hours in the past vapor tight tank, merged twice extract, filters back vacuum in other vapor tight tank and is concentrated into about 200L.
Add 320 purpose diatomite 25kg in the plant extraction liquid after concentrate, low-temperature vacuum drying obtains the mixed plant extract behind the mixing.
In the mixed plant extract, add ammonium sulfate 3kg, sodium alkyl benzene sulfonate 150g, agricultural chemicals with bleeding agent 2kg, synergist 1kg again, add diatomite then mixture is gathered to 50kg.
At last, mixture is ground into fine powder, becomes the bag packing by every bag 100g.
During use, every bag of medicinal powder is converted clear water to the 10-15 kilogram, be sprayed on paddy rice lower floor, dispenser is spaced apart 20 days.
By potted plant experiment and field experiment checking, more than the green nuisance free pesticide that obtains of three embodiment the control efficiency to rice sheath blight disease reaches 65%-76% under the working concentration recommending, assisting in preventing and treating effect to rice blast also has about 30%, best with the agricultural chemicals effect that embodiment 3 methods make, the highest preventive effect reaches 80%.
Embodiment 4:
Japanese coral leaf is dried to constant weight under 60 ℃ in baking box, be crushed to about 60 sieve meshes with cracker.Get Japanese sweet viburnum powder 100kg in revolving in the vapor tight tank, add concentration again and be 95% ethanol 600L.Vapor tight tank with 150rpm speed rotation 48 hours, is emitted extract at normal temperatures then, adds 400L 95% alcohol extract 36 hours again in vapor tight tank, vacuumizes after the filtrate of merging is filtered to be concentrated into about 200L in other vapor tight tank.Then add OPEO 25kg in the plant extraction liquid after concentrate, ammonium sulfate 5kg, agricultural chemicals bleeding agent 1kg, then with methanol constant volume to 250L.Mixed solution is stirred suction stabilization pond after 30 minutes, can be by the amount filling bottle packing of every bottle of 500mL after 4 hours.
During use, every bottle liquid medicine is converted clear water to the 10-15 kilogram, be sprayed on paddy rice lower floor, dispenser blanking time is 20 days.
Embodiment 5:
Japanese coral leaf is dried to constant weight under 60 ℃ in baking box, be crushed to about 60 sieve meshes with cracker.Get Japanese sweet viburnum powder 100kg in revolving in the vapor tight tank, add 95% ethanol 600L again.Vapor tight tank with 150rpm speed rotation 48 hours, is emitted extract at normal temperatures then, adds 400L 95% alcohol extract 36 hours again in vapor tight tank, vacuumizes after the filtrate of merging is filtered to be concentrated into about 200L in other vapor tight tank.Then add OPEO 25kg in the plant extraction liquid after concentrate, ammonium sulfate 5kg, agricultural chemicals bleeding agent 1kg, then with methanol constant volume to 250L.Mixed solution is stirred suction stabilization pond after 30 minutes, can be by the amount filling bottle packing of every bottle of 500mL after 4 hours.
During use, every bottle liquid medicine is converted clear water to the 10-15 kilogram, be sprayed on paddy rice lower floor, dispenser blanking time is 20 days.
Embodiment 6:
Japanese coral leaf is dried to constant weight under 60 ℃ in baking box, be crushed to about 55 sieve meshes with cracker.Get Japanese sweet viburnum powder 100kg in revolving in the vapor tight tank, add 95% ethanol 600L again.Vapor tight tank with 150rpm speed rotation 48 hours, is emitted extract at normal temperatures then, adds 500L 95% alcohol extract 48 hours again in vapor tight tank, vacuumizes after the filtrate of merging is filtered to be concentrated into about 200L in other vapor tight tank.Then add OPEO 20kg in the plant extraction liquid after concentrate, ammonium sulfate 10kg, agricultural chemicals is settled to 250L with ethyl acetate then with bleeding agent, each 1kg of synergist.Mixed solution is stirred suction stabilization pond after 30 minutes, can be by the amount filling bottle packing of every bottle of 500mL after 4 hours.
During use, every bottle liquid medicine is converted clear water to the 10-15 kilogram, be sprayed on paddy rice lower floor, dispenser blanking time is 20 days.
By potted plant experiment and field experiment, green nuisance free pesticide control efficiency to rice sheath blight disease under the recommendation usage amount of producing according to above-described embodiment 4, embodiment 5, embodiment 6 can reach 60% to 75%.
Claims (4)
1. green nuisance free pesticide, it is characterized in that consisting of: the quality percentage composition is the mixed plant extract of 85-97%, the surfactant of 0.1-0.2%, the suspending agent of 2-5%, the bleeding agent of 0-5%, the synergist of 0-5%; The composition of described mixed plant extract is: the quality percentage composition is that grass meal end, curb limit, the quality percentage composition of 15-30% is that thousand Bai Fenmo, the quality percentage composition of 15-40% is the Japanese sweet viburnum powder of 40-70%.
2. one kind prepares the method for green nuisance free pesticide according to claim 1, it is characterized in that comprising the step of following order:
(1) curb limit grass blade and leaf, thousand CedarLeaves, Japanese coral leaves are dried to constant weight mechanical disintegration to 60 sieve mesh under 50 ℃-60 ℃;
(2) after the ratio that is respectively 15-30%, 15-40%, 40-70% by mass percentage with previous step gained curb limit grass, thousand cypresses, Japanese sweet viburnum powder is mixed, be 95% ethanol in mass ratio with concentration again be that the ratio of 1:4-1:6 is mixed and joined and can revolve in the vapor tight tank, extract with the rotating speed rotation of 50-150rpm under the room temperature and emit extract after 36-48 hour;
(3) to add the concentration of same ratio amount in the step (2) in the vapor tight tank again be 95% ethanol to revolving, rotation was extracted 36-48 hour again, emit behind the extract and merge with a preceding extract, with the extracting liquid filtering that merges, filtrate decompression is concentrated into volume about 20%;
(4) adding quality in the plant extraction liquid after concentrating to previous step is the adsorbent of mixed plant powder quality 1/4-1/3, and vacuum drying below 60 ℃ behind the mixing obtains the mixed plant extract;
(5) be respectively to be ground into fine powder after the ratio of 85-97%, 0.1-0.2%, 2-5%, 0-5%, 0-5% is mixed by mass percentage with mixed plant extract, surfactant, suspending agent, bleeding agent, synergist, bag distribution packaging again.
3. green nuisance free pesticide, it is characterized in that consisting of: the quality percentage composition is the Japanese sweet viburnum extract of 60-80%, the solvent of 10-20%, the emulsifier of 5-15%, the suspending agent of 2-5%, the bleeding agent of 0-5%, the synergist of 0-5%;
Described Japanese sweet viburnum extract is made by following method:
(1) Japanese coral leaf is dried to constant weight mechanical disintegration to 60 sieve mesh under 50 ℃-60 ℃;
(2) to be 95% ethanol with previous step gained Japan sweet viburnum powder and concentration in the ratio of mass ratio 1:4-1:6 join can revolve in the vapor tight tank, rotating speed rotation extraction with 50-150rpm under the room temperature was emitted extract after 36-48 hour, the concentration that adds same ratio again in the vapor tight tank is that 95% ethanol repeats to extract once, secondary raffinate merges the back and filters, filtrate decompression is concentrated into 20% volume, namely gets Japanese sweet viburnum extract.
4. method for preparing as green nuisance free pesticide as described in the claim 3 is characterized in that comprising the step of following order:
(1) Japanese coral leaf is dried to constant weight mechanical disintegration to 60 sieve mesh under 50 ℃-60 ℃;
(2) to be 95% ethanol with previous step gained Japan sweet viburnum powder and concentration in the ratio of mass ratio 1:4-1:6 join can revolve in the vapor tight tank, rotating speed rotation extraction with 50-150rpm under the room temperature was emitted extract after 36-48 hour, the concentration that adds same ratio again in the vapor tight tank is that 95% ethanol repeats to extract once, secondary raffinate merges the back and filters, filtrate decompression is concentrated into 20% volume, namely gets Japanese sweet viburnum extract;
(3) be respectively that the Japanese sweet viburnum extract of 60-80%, the solvent of 10-20%, the emulsifier of 5-15%, the suspending agent of 2-5%, the bleeding agent of 0-5%, the synergist of 0-5% add solvent, emulsifier, suspending agent, bleeding agent, synergist by mass percentage in the extract after concentrating to previous step gained plant;
(4) above-mentioned mixed solution stirring was handled 4 hours at stabilization pond after 20-30 minute, can becomes bottle then, namely obtains finished product.
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| CN 201010265011 CN101926368B (en) | 2010-08-29 | 2010-08-29 | Green pollution-free pesticide and preparation method thereof |
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| CN101926368B true CN101926368B (en) | 2013-09-04 |
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| CN104322602A (en) * | 2014-11-17 | 2015-02-04 | 龙敏 | Chinese herbal medicine insecticide |
| CN105028529B (en) * | 2015-07-23 | 2018-04-03 | 安徽省圣丹生物化工有限公司 | A kind of environmentally friendly herbicide and preparation method thereof |
| CN105028527B (en) * | 2015-07-23 | 2018-02-16 | 安徽省圣丹生物化工有限公司 | A kind of compound herbicide and preparation method thereof |
| CN108552232A (en) * | 2018-04-25 | 2018-09-21 | 芜湖扬展新材料科技服务有限公司 | A kind of rice compound biotic insecticide |
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