CN103503925B - Chenopodium ambrosiodies volatile oil fumigates granule and preparation method - Google Patents
Chenopodium ambrosiodies volatile oil fumigates granule and preparation method Download PDFInfo
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- CN103503925B CN103503925B CN201310445145.8A CN201310445145A CN103503925B CN 103503925 B CN103503925 B CN 103503925B CN 201310445145 A CN201310445145 A CN 201310445145A CN 103503925 B CN103503925 B CN 103503925B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses chenopodium ambrosiodies volatile oil and fumigate granule and preparation method thereof; solution protecting field soil-borne disease occurs seriously, dosage is big, lavish labor on problem; the present invention includes following components: chenopodium ambrosiodies volatile oil, adhesive, adsorbent, carrier; take adhesive and put in hot water; stirring; adhesive is 1:5～10 with the weight ratio of water, obtains the adhesive aqueous solution；The Herba Schizonepetae volatile oil that fetches earth is dissolved in absolute ethyl alcohol, and wherein chenopodium ambrosiodies volatile oil is 1:1 5 with the weight ratio of absolute ethyl alcohol, obtains the ethanol solution of chenopodium ambrosiodies volatile oil；By the ethanol solution of chenopodium ambrosiodies volatile oil, carrier mixing, put into the adhesive aqueous solution, adsorbent, mix and blend the most successively; coating pelletizing, is dried, after cooling; cross 20 mesh sieves; the present invention is easy to use, pollutes little, and the drug effect phase is long; save human and material resources; can the generation of effectively preventing soil-borne disease, use at protecting field and will not increase air humidity, the popular of disease can be avoided.
Description
Technical field
The invention belongs to botanical fungicide production field, fumigate granule and preparation method thereof particularly to a Plant Extracts chenopodium ambrosiodies volatile oil.
Background technology
At present, often based on chemical synthesis bactericide in control of plant disease, chemical synthetic pesticide has that preventive effect is good, the feature of instant effect.But use chemical synthetic pesticide in a large number for a long time, residues of pesticides can be caused to exceed standard, pest and disease damage develops immunity to drugs, the harmful organism problem such as rampant again, and the most dangerous to people and animals and environment.Use for reference Chinese medicine study achievement, it is expected to from medicinal plant, filter out the natural active matter of anti-plant pathogenic fungi.These active materials can be respond well directly as natural bactericidal agent.
Wormseed, in chenopod, is distributed widely in temperate zone, the whole world to torrid areas, is generally grown in the wasteland in roadside, riverbank etc. and in farmland.Chenopodium ambrosiodies with all herbal medicine, have dispel the wind, dehumidify, desinsection, stimulate the menstrual flow, the effect such as pain relieving.Chenopodium ambrosiodies is containing abundant volatile oil, and its volatile oil tool is antibacterial, desinsection, inhibition cancer cell grow and the effect for the treatment of gastric ulcer, particularly has suppression and toxic action significantly to plant pathogenic fungi, and antimicrobial spectrum is wider.But chenopodium ambrosiodies volatile oil is the most formulation at present.
At present, the cultivated area of vegetable at protected field constantly expands, and along with improving constantly of vegetable at protected field multiple crop index, the generation of soil-borne disease is the most serious, becomes the restraining factors that vegetables produce.Traditional prevention and controls is based on spray-on process, and spray method dispenser not only agricultural chemicals utilization rate is low, and increases air humidity, causes the popular of high wet type disease, causes dispenser repeatedly, adds labour intensity.And utilize the disease of stifling granule preventing and treating vegetable at protected field can avoid the generation of these problems.
Summary of the invention
In order to solve, the generation of vegetable at protected field disease is frequent, soil-borne disease occurs seriously, dosage is big, lavish labor on, easily cause the problems such as agricultural chemicals develops immunity to drugs, residual vegetable exceeds standard, and the invention provides a kind of chenopodium ambrosiodies volatile oil and fumigates the preparation method of granule.
For achieving the above object, the technical solution used in the present invention is:
A kind of chenopodium ambrosiodies volatile oil fumigates granule, by following weight percent composition: chenopodium ambrosiodies volatile oil 5%～10%, adhesive 0.5%～1%, adsorbent 4%～10%, carrier 80～90.5%, total amount 100% are made, and preparation process is:
Taking in the hot water that adhesive puts into 50～90 DEG C, stir 1～2h under heat-retaining condition, wherein adhesive is 1:5～10 with the mass percent of water, obtains the adhesive aqueous solution；
The Herba Schizonepetae volatile oil that fetches earth is dissolved in absolute ethyl alcohol, makes high concentration crude oil, and wherein chenopodium ambrosiodies volatile oil is 1:1～5 with the mass percent of absolute ethyl alcohol, obtains the ethanol solution of chenopodium ambrosiodies volatile oil；
The ethanol solution of chenopodium ambrosiodies volatile oil, carrier being put in agitating device and be pre-mixed, puts into the adhesive aqueous solution, adsorbent the most successively, mix and blend 1～2.5h, coating pelletizing, drying machine 40～50 DEG C are dried, and after cooling, cross 20 mesh sieves, to obtain final product.
Described chenopodium ambrosiodies volatile oil preparation method is that fetch earth schizonepeta herb, dries in the shade, and is cut into 0.2～0.8cm segment, extraction by steam distillation 2h, collects volatile oil, obtain chenopodium ambrosiodies volatile oil.
Described adhesive is sodium lignin sulfonate, gelatin, Arabic gum, polyvinylpyrrolidone, ethyl cellulose, methylcellulose, glycerine, polyethylene glycol, starch or dextrin.
Described adsorbent is white carbon, potter's clay, diatomite or calcium carbonate.
Described carrier is the one in kaolin, precipitated calcium carbonate, bentonite, talcum powder, attapulgite or silicon sand.
Described chenopodium ambrosiodies volatile oil fumigant, by following weight percent composition: chenopodium ambrosiodies volatile oil 5%, adhesive 0.5%, adsorbent 10%, carrier 84.5% are made.
Described chenopodium ambrosiodies volatile oil fumigant, by following weight percent composition: chenopodium ambrosiodies volatile oil 10%, adhesive 1%, adsorbent 4%, carrier 85% are made.
Described chenopodium ambrosiodies volatile oil fumigant, by following weight percent composition: chenopodium ambrosiodies volatile oil 7%, adhesive 0.8%, adsorbent 7%, carrier 85.2% are made.
Compared with prior art, the present invention has the advantage that as follows with effect:
1, active ingredient is chenopodium ambrosiodies volatile oil, belongs to biological pesticide, and in use effect on environment is little.
2, products obtained therefrom of the present invention is easy to use pollution-free, can directly mix soil and spread fertilizer over the fields use, can effectively kill the pathogen in soil, and the soil-borne disease throughout the year occurred is had good effect.And this stifling granule is in use non-cohesive on plant stem-leaf, it is to avoid direct contact and produce poisoning.
3, products obtained therefrom of the present invention in use need not add water, and does not increase the humidity of protecting field compared with traditional spray-on process, the problem significantly reducing vegetable at protected field morbidity weight.
4, products obtained therefrom of the present invention adds adsorbent in preparation process, makes chenopodium ambrosiodies volatile oil slowly discharge, can effectively extend the drug effect phase, it is to avoid the human and material resources that dispenser causes repeatedly waste.
Detailed description of the invention
Embodiment 1
Weigh in the hot water that ethyl cellulose 5g puts into 30g 50 DEG C, under heat-retaining condition, stir 1h, obtain the aqueous solution of ethyl cellulose；Take 50g chenopodium ambrosiodies volatile oil to be dissolved in 80g absolute ethyl alcohol, obtain the ethanol solution of chenopodium ambrosiodies volatile oil；Mixing in the ethanol solution of chenopodium ambrosiodies volatile oil, 845g precipitated calcium carbonate are put into agitating device, put into the aqueous solution of ethyl cellulose, 100g white carbon mix and blend 2h, coating pelletizing the most successively, 50 DEG C of drying machine is dried, and after cooling, crosses 20 mesh sieves, to obtain final product；
Described chenopodium ambrosiodies volatile oil preparation method is that fetch earth schizonepeta herb, dries in the shade, and is cut into 0.2cm segment, extraction by steam distillation 2h, collects volatile oil, obtain chenopodium ambrosiodies volatile oil.
Embodiment 2
Weigh in the hot water that polyethylene glycol 10g puts into 50g 80 DEG C, under heat-retaining condition, stir 1.5h, obtain the aqueous solution of polyethylene glycol；Take 100g chenopodium ambrosiodies volatile oil to be dissolved in 300g absolute ethyl alcohol, obtain the ethanol solution of chenopodium ambrosiodies volatile oil；Mixing in the ethanol solution of chenopodium ambrosiodies volatile oil, 850g silica sand are put into agitating device, put into the aqueous solution of polyethylene glycol, 40g potter's clay mix and blend 1.5h, coating pelletizing the most successively, 50 DEG C of drying machine is dried, and after cooling, crosses 20 mesh sieves, to obtain final product；
Described chenopodium ambrosiodies volatile oil preparation method is that fetch earth schizonepeta herb, dries in the shade, and is cut into 0.5cm segment, extraction by steam distillation 2h, collects volatile oil, obtain chenopodium ambrosiodies volatile oil.
Embodiment 3
Weigh in the hot water that Arabic gum 8g puts into 80g 90 DEG C, under heat-retaining condition, stir 1.5h, obtain the aqueous solution of Arabic gum；Take 70g chenopodium ambrosiodies volatile oil to be dissolved in 200g absolute ethyl alcohol, obtain the ethanol solution of chenopodium ambrosiodies volatile oil；Being pre-mixed in the ethanol solution of chenopodium ambrosiodies volatile oil, 852g talcum powder are put into agitating device, put into the aqueous solution of Arabic gum, 70g diatomite mix and blend 1h, coating pelletizing the most successively, 40 DEG C of drying machine is dried, and after cooling, crosses 20 mesh sieves, to obtain final product；
Described chenopodium ambrosiodies volatile oil preparation method is that fetch earth schizonepeta herb, dries in the shade, and is cut into 0.8cm segment, extraction by steam distillation 2h, collects volatile oil, obtain chenopodium ambrosiodies volatile oil.
In order to preferably verify the practical application effect of the present invention, the field control effectiveness test effect of fumigant of the present invention is described with example below.
The field control effectiveness test of granule fumigated by chenopodium ambrosiodies volatile oil
Reagent agent: the stifling granule product prepared by the present invention, 50% carbendazol wettable powder；
Subjects: eggplant damping-off, cucumber fusarium axysporum；
Test packet: randomly choose 20 communities, every plot area 30m in field2, every community is single protecting field, and these 20 communities are randomly divided into 4 groups, and often 5 repetitions of group, often organize and use bactericide 600g/hm prepared by the present invention respectively2, represent with A, 800g/hm2, represent with B, 50% carbendazol wettable powder 250g/hm2, represent and blank (spray clear water) with C, represent with D, crop transplant after per hectare mix soil 5kg spread fertilizer over the fields.
Investigation method: eggplant damping-off 10d, 15d, 20d after administration investigate, cucumber fusarium axysporum 15d, 30d, 45d after administration investigate.30 strains are investigated in every community, point Pyatyi record morbidity severity, and calculate each community disease index.Prevention effect calculates according to below equation: prevention effect (%)=(check plot disease refers to that treatment region disease refers to)/check plot disease refers to × 100.
Table 1 chenopodium ambrosiodies volatile oil fumigates granule to eggplant damping-off and the preventive effect of cucumber fusarium axysporum
From upper table, 2 process of bactericide of the present invention, A and B all has preferable preventive effect to eggplant damping-off and cucumber fusarium axysporum, and preventive effect is above conventional chemical bactericide C；The preventive effect of eggplant damping-off and cucumber fusarium axysporum is extended and increases by 2 process of bactericide of the present invention the most in time；And conventional chemical bactericide processes C and reduces the prolongation in time of the preventive effect of eggplant damping-off, the preventive effect of cucumber fusarium axysporum is reached the highest at 30d, reduce subsequently, thus it is appreciated that, bactericide of the present invention slowly discharges, can effectively extend the drug effect phase, it is to avoid use the repeatedly dispenser of chemical pesticide.
Claims (8)
1. granule fumigated by chenopodium ambrosiodies volatile oil, it is characterised in that be made up of following percentage by weight: chenopodium ambrosiodies volatile oil 5%～10%, adhesive 0.5%～1%, adsorbent 4%～10%, carrier 80%～90.5%, and total amount 100% is made, and preparation process is:
Taking in the hot water that adhesive puts into 50～90 DEG C, stir 1～2h under heat-retaining condition, wherein adhesive is 1:5～10 with the weight ratio of water, obtains the adhesive aqueous solution；
Fetch earth schizonepeta herb, dries in the shade, and is cut into 0.2～0.8cm segment, extraction by steam distillation 2h, collects volatile oil, obtain chenopodium ambrosiodies volatile oil；
The Herba Schizonepetae volatile oil that fetches earth is dissolved in absolute ethyl alcohol, and wherein chenopodium ambrosiodies volatile oil is 1:1～5 with the weight ratio of absolute ethyl alcohol, obtains chenopodium ambrosiodies volatile oil and obtains ethanol solution；
The ethanol solution of chenopodium ambrosiodies volatile oil, carrier being put in agitating device and mixed, puts into the adhesive aqueous solution, adsorbent the most successively, mix and blend 1～2.5h, coating pelletizing, drying machine 40～50 DEG C are dried, and after cooling, cross 20 mesh sieves, to obtain final product.
Granule fumigated by chenopodium ambrosiodies volatile oil the most according to claim 1, it is characterized in that, described adhesive is sodium lignin sulfonate, gelatin, Arabic gum, polyvinylpyrrolidone, ethyl cellulose, methylcellulose, glycerine, polyethylene glycol, starch or dextrin.
Granule fumigated by chenopodium ambrosiodies volatile oil the most according to claim 1, it is characterised in that described adsorbent is white carbon, potter's clay, diatomite or calcium carbonate.
Granule fumigated by chenopodium ambrosiodies volatile oil the most according to claim 1, it is characterised in that described carrier is that kaolin, precipitated calcium carbonate, bentonite, talcum powder, attapulgite or silicon are husky.
Granule fumigated by chenopodium ambrosiodies volatile oil the most according to claim 1, it is characterised in that by following weight percent composition: chenopodium ambrosiodies volatile oil 5%, adhesive 0.5%, adsorbent 10%, carrier 84.5% are made.
Granule fumigated by chenopodium ambrosiodies volatile oil the most according to claim 1, it is characterised in that by following weight percent composition: chenopodium ambrosiodies volatile oil 10%, adhesive 1%, adsorbent 4%, carrier 85% are made.
Granule fumigated by chenopodium ambrosiodies volatile oil the most according to claim 1, it is characterised in that by following weight percent composition: chenopodium ambrosiodies volatile oil 7%, adhesive 0.8%, adsorbent 7%, carrier 85.2% are made.
8. granule application in preparation preventing and treating eggplant damping-off, cucumber fusarium axysporum disease agricultural chemicals fumigated by the chenopodium ambrosiodies volatile oil described in claim 1～7 any one.
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| CN103503925B true CN103503925B (en) | 2016-08-17 |
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| CN1990006B (en) * | 2005-12-31 | 2011-10-05 | 天津天士力制药股份有限公司 | Chenopodium ambrosioides extract, preparation thereof, preparation method and use thereof |
| CN101569317A (en) * | 2009-06-11 | 2009-11-04 | 福建省农业科学院植物保护研究所 | Chlorpyrifos microemulsion containing chenopodium ambrosioides oil and preparation method thereof |
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