CN109042753A - A kind of long-acting slow-release plant source compound Herbicidal combinations and preparation method thereof - Google Patents
A kind of long-acting slow-release plant source compound Herbicidal combinations and preparation method thereof Download PDFInfo
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- CN109042753A CN109042753A CN201811114745.5A CN201811114745A CN109042753A CN 109042753 A CN109042753 A CN 109042753A CN 201811114745 A CN201811114745 A CN 201811114745A CN 109042753 A CN109042753 A CN 109042753A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/02—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/20—Fabaceae or Leguminosae [Pea or Legume family], e.g. pea, lentil, soybean, clover, acacia, honey locust, derris or millettia
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Abstract
The invention belongs to field of pesticide production, and in particular to a kind of long-acting slow-release plant source compound Herbicidal combinations and preparation method thereof.The long-acting slow-release plant source compound Herbicidal combinations, include component as follows in parts by mass: 8~15 parts of Tea Saponin, 3~10 parts of shrubby sophora extract, 5~15 parts of Juglans regia L. extract, 5~15 parts of Flos Tagetis Erectae extract, 20~35 parts of n-nonanoic acid, 10~15 parts of glyphosate, 5~7 parts of polyvinyl alcohol, 8~12 parts of dodecyl sodium sulfate, 8~12 parts of BYC-408.Long-acting slow-release plant source compound Herbicidal combinations ingredient origin provided by the invention is extensive, cheap, can significantly reduce herbicide processing cost；Herbicidal composition is mainly plant component, easily decomposes, reduces environmental pollution and herbicide resistance.
Description
Technical field
The invention belongs to field of pesticide production, and in particular to a kind of long-acting slow-release plant source compound Herbicidal combinations and its system
Preparation Method.
Background technique
Weeds are many kinds of, with crop contention nutriment, moisture, sunlight and space, cause a large amount of underproduction of crops；And
And weeds induce pathogenic microorganisms and pest, lead to disease, insect pest；Even, the seed or pollen of some weeds contain toxin, make
At person poultry poisoning.The weeds in the annual whole world cause a large amount of economic loss.
The beginning of farmland chemical weed control can pass up to the late 19th century, when preventing and treating European grape downy mildew, send out once in a while
Existing Bordeaux mixture can injure some cruciferous weeds without injuring cereal crop；France, Germany, the U.S. find sulfuric acid simultaneously
With the herbicide effect of copper sulphate etc., and for the ground weeding such as wheat.Organic chemistry herbicide period starts from selectivity in 1932 and removes
The discovery of careless agent Chemox PE.The rapid development of organic herbicide industry is greatly facilitated in the 1940s 2, the appearance of 4-D.
The glyphosate of synthesis in 1971, has the characteristics that broad weed-killing spectrum, no pollution to the environment, is the important breakthrough of organophosphorus herbicide.
In addition a variety of novel forms and the new appearance for using technology, greatly improve herbicidal effect.World Herbicide has accounted for agriculture at 1980
The 41% of medicine total sales volume, leap to the first position more than insecticide.
Although the use of herbicide has played preferable economic benefit in control weeds production.But effect is preferable
Herbicide majority is chemically herbicide, causes pesticide residue, environmental pollution, herbicide resistance and the increase of safety of human and livestock's hidden danger etc.
Drawback.Therefore, novel, environmentally friendly, natural, safe environmental botanical herbicides are researched and developed, development and the ring of planting industry are facilitated
Border is administered, and is had a vast market foreground, economic benefit and social benefit.
Summary of the invention
For overcome the deficiencies in the prior art and disadvantage, the primary purpose of the present invention is that providing a kind of long-acting slow-release plant
Source complex herbicidal composition, the composition have preferable herbicidal effect, reduce pesticide residue, environmental pollution, use cost.
Another object of the present invention is to provide the preparation methods of above-mentioned long-acting slow-release plant source compound Herbicidal combinations.
A further object of the present invention is to provide the applications of above-mentioned long-acting slow-release plant source compound Herbicidal combinations.
The purpose of the present invention is realized by subordinate's technical solution:
A kind of long-acting slow-release plant source compound Herbicidal combinations, include component as follows in parts by mass:
The long-acting slow-release plant source compound Herbicidal combinations preferably comprise following component in parts by mass:
The preparation method of the long-acting slow-release plant source compound Herbicidal combinations, comprises the following steps:
(1) tea seed cake drying, ultramicro grinding, sieving after tea seed extracting oil, obtain tea seed cake powder, and tea seed cake powder is used CO2
Supercritical fluid extraction, product is dry, obtains Tea Saponin；
(2) kuh-seng is dry, ultramicro grinding, sieving, obtain kuh-seng powder；Kuh-seng powder is soaked using ethanol water
It mentions, filters, collect filtrate, be concentrated, it is dry, obtain shrubby sophora extract；
(3) English walnut is dry, ultramicro grinding, sieving, obtain walnut powder；Then walnut powder and water are mixed, pectin is added
Enzyme and cellulase are digested, and enzymatic hydrolysis mixed liquor is obtained；Using chloroform as solvent after enzymatic hydrolysis, Soxhlet pumping is carried out to enzymatic hydrolysis mixed liquor
It mentions, filters, collect filtrate, be concentrated, it is dry, obtain Juglans regia L. extract；
(4) marigold is dry, ultramicro grinding, sieving, obtain marigold powder；Using chloroform as solvent, to marigold powder into
Filtrate is collected in row soxhlet type, filtering, is concentrated, dry, obtains Flos Tagetis Erectae extract；
(5) English walnut made from shrubby sophora extract made from Tea Saponin made from step (1), step (2), step (3) is mentioned
Take Flos Tagetis Erectae extract, n-nonanoic acid, glyphosate, polyvinyl alcohol, dodecyl sodium sulfate and BYC-408 made from object and step (4)
It is uniformly mixed, obtains long-acting slow-release plant source compound Herbicidal combinations；
CO described in step (1)2The condition of supercritical fluid extraction be preferably ethyl alcohol be entrainer, extraction temperature 35~
45 DEG C, 25~40Mpa of extracting pressure, extraction time is 2~4h, CO2Flow velocity is 10~15L/h；
The mass fraction of ethyl alcohol is preferably 50~80% in ethanol water described in step (2)；
The condition of extraction described in step (2) is preferably 50~65 DEG C of extractions 2~3 times, every time 1~3h；
The dosage of pectase described in step (3) is preferably digest mixed liquor quality 2~5%, the enzyme activity of pectase
Property be 10000~50000U/g；
The dosage of cellulase described in step (3) is preferably digest mixed liquor quality 1~3%, cellulase
Enzymatic activity is 10000~50000U/g；
The temperature of soxhlet type described in step (3) is preferably 80~100 DEG C, and extraction time is 2~3h；
The temperature of soxhlet type described in step (4) is preferably 80~100 DEG C, and extraction time is 4~6h；
Sieving described in step (1), (2), (3) and (4) is preferably 100 meshes；
Application of the long-acting slow-release plant source compound Herbicidal combinations in herbicide preparation field；
The dosage form of the herbicide be preferably wettable powder, suspending agent, missible oil, microemulsion, aqueous emulsion, granule or
Water dispersible granules；
The principle of the present invention:
Tea Saponin: by a kind of glycoside compounds extracted in tea tree seed (tea seed, tea seeds), there is good agriculture
Medicine bioactivity and surface-active.
Shrubby sophora extract: main component is a variety of alkaloids such as matrine, oxymatrine, has insecticidal activity, sterilization
The multiple functions such as activity, coordinate plant growth function.
Juglans regia L. extract: main component is English walnut quinones and its derivative, has antiviral, antibacterium, antimycotic etc. more
Kind function.
Flos Tagetis Erectae extract: main component is that marigold α-three connects thiophene, has photoactive toxin, bactericidal activity etc.
Multiple functions.
N-nonanoic acid: n-nonanoic acid has wide spectrum, quick-acting, contact toxicity and non-selective action character.
Glyphosate: non-volatile white solid, storage at normal temperature are stablized, and are a kind of efficient, low toxicities, wide spectrum total weed control
Agent.
Polyvinyl alcohol: it is odorless, nontoxic, pesticide active ingredient slow release is made after addition, extends efficacy time, reduces medication
Number and dosage reduce drug cost, and reduce environmental pollution.
Dodecyl sodium sulfate: green surfactant has irritation small, and biodegrade is fast, function admirable, can and its
He has the features such as synergistic effect by surfactant.
BYC-408: super wetting agent significantly improves the wetability of pesticide, ductility and permeability.Reduce aqueous agricultural-chemical
Surface tension, hence it is evident that improve plant tissue to the absorbability of pesticide.
Tea Saponin, shrubby sophora extract, Juglans regia L. extract, Flos Tagetis Erectae extract, n-nonanoic acid and glyphosate are compounded and are made by the present invention
The effective weeding component diversification of long-acting slow-release plant source compound Herbicidal combinations obtained, action pathway diversification have preferable
Herbicidal effect, the Herbicidal combinations lasting period is long, has synergistic function, compared to single agent, the combination between active constituent
Object expands herbicidal spectrum, improves preventive effect, reduces dosage, reduces drug cost, has delayed herbicide resistance
Development, and the plant sources such as Tea Saponin, matrine component can degrade automatically, nonhazardous, reduce pesticide residue.
The present invention has the following advantages and effects with respect to the prior art:
(1) present invention carries out enzymatic treatment to English walnut using pectase and cellulase, and it is living to can promote intracellular various chemistry
The separation and release of property substance.
(2) long-acting slow-release plant source compound Herbicidal combinations ingredient origin provided by the invention is extensive, cheap, can
Significantly reduce herbicide processing cost；Herbicidal composition is mainly plant component, easily decomposes, reduces environmental pollution and weeds
Drug resistance.
(3) long-acting slow-release plant source compound Herbicidal combinations provided by the invention are added to glyphosate chemical herbicide conduct
Synergistic herbicidal agents play killing effect in weeds budding；And composition components type is more, can effectively expand weeding pedigree.
(4) Tea Saponin in long-acting slow-release plant source compound Herbicidal combinations provided by the invention acts not only as pesticide
Synergist improves activity of weeding, and can act synergistically with dodecyl sodium sulfate, improves Herbicidal combinations on plant
Adhesive force and hygroscopicity improve the penetration of medical fluid.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment 1
A kind of long-acting slow-release plant source compound Herbicidal combinations, include component as follows in parts by mass:
The preparation method of the long-acting slow-release plant source compound Herbicidal combinations, comprises the following steps:
(1) tea seed cake after tea seed extracting oil, which is placed in micronizer, to be pulverized, and is sieved with 100 mesh sieve, is obtained
Tea seed cake powder；Tea seed cake powder is used into CO2Supercritical fluid extraction, wherein ethyl alcohol is entrainer, 40 DEG C of extraction temperature, extracting pressure
35Mpa, extraction time 3h, CO2Flow velocity is 12L/h, and the dry removal solvent of product obtains Tea Saponin；
(2) by the root of kuh-seng, cauline leaf and fruit are dry, pulverize, sieve with 100 mesh sieve, obtain kuh-seng powder；Using quality point
Number extracts 60 DEG C of kuh-seng powder 3 times, each 2.5h for 70% ethanol water, and filtrate is collected in filtering, is concentrated, dry, obtains
Shrubby sophora extract；
(3) English walnut is dry, pulverize, sieve with 100 mesh sieve, obtain walnut powder；Then walnut powder and water are mixed, is added
Pectase (enzymatic activity 25000U/g) and cellulase (enzymatic activity 25000U/g) are digested, and enzymatic hydrolysis mixed liquor is obtained,
Wherein, the dosage of pectase is digest mixed liquor quality 4%, and the dosage of cellulase is digest mixed liquor quality 2%；Enzyme
Using chloroform as solvent after solution, soxhlet type is carried out to enzymatic hydrolysis mixed liquor, extraction temperature is 90 DEG C, time 2.5h；Then it filters,
Filtrate is collected, is concentrated, it is dry, obtain Juglans regia L. extract；
(4) marigold is dry, pulverize, sieve with 100 mesh sieve, obtain marigold powder；Using chloroform as solvent, to marigold
Powder carries out soxhlet type, and extraction temperature is 90 DEG C, time 5.5h；Then it filters, collects filtrate, be concentrated, it is dry, obtained for ten thousand longevity
Chrysanthemum extract；
(5) English walnut made from shrubby sophora extract made from Tea Saponin made from step (1), step (2), step (3) is mentioned
Take Flos Tagetis Erectae extract made from object and step (4), n-nonanoic acid, glyphosate, polyvinyl alcohol, dodecyl sodium sulfate, BYC-408 mixed
It closes uniformly, obtains long-acting slow-release plant source compound Herbicidal combinations.
Embodiment 2
A kind of long-acting slow-release plant source compound Herbicidal combinations, include component as follows in parts by mass:
The preparation method of the long-acting slow-release plant source compound Herbicidal combinations, comprises the following steps:
(1) tea seed cake after tea seed extracting oil, which is placed in micronizer, to be pulverized, and is sieved with 100 mesh sieve, is obtained
Tea seed cake powder；Tea seed cake powder is used into CO2Supercritical fluid extraction, wherein ethyl alcohol is entrainer, 35 DEG C of extraction temperature, extracting pressure
40Mpa, extraction time 2h, CO2Flow velocity is 10L/h, and the dry removal solvent of product obtains Tea Saponin；
(2) by the root of kuh-seng, cauline leaf and fruit are dry, pulverize, sieve with 100 mesh sieve, obtain kuh-seng powder；Using quality point
Number extracts 65 DEG C of kuh-seng powder 3 times, each 3h for 50% ethanol water, and filtrate is collected in filtering, is concentrated, dry, obtains hardship
Conopsea extraction；
(3) English walnut is dry, pulverize, sieve with 100 mesh sieve, obtain walnut powder；Then walnut powder and water are mixed, is added
Pectase (enzymatic activity 10000U/g) and cellulase (enzymatic activity 10000U/g) are digested, and enzymatic hydrolysis mixed liquor is obtained,
Wherein, the dosage of pectase is digest mixed liquor quality 5%, and the dosage of cellulase is digest mixed liquor quality 3%；Enzyme
Using chloroform as solvent after solution, soxhlet type is carried out to enzymatic hydrolysis mixed liquor, extraction temperature is 100 DEG C, time 2h；Then it filters,
Filtrate is collected, is concentrated, it is dry, obtain Juglans regia L. extract；
(4) marigold is dry, pulverize, sieve with 100 mesh sieve, obtain marigold powder；Using chloroform as solvent, to marigold
Powder carries out soxhlet type, and extraction temperature is 80 DEG C, time 6h；Then it filters, collects filtrate, be concentrated, it is dry, obtain marigold
Extract；
(5) English walnut made from shrubby sophora extract made from Tea Saponin made from step (1), step (2), step (3) is mentioned
Take Flos Tagetis Erectae extract made from object and step (4), n-nonanoic acid, glyphosate, polyvinyl alcohol, dodecyl sodium sulfate, BYC-408 mixed
It closes uniformly, obtains long-acting slow-release plant source compound Herbicidal combinations.
Embodiment 3
A kind of long-acting slow-release plant source compound Herbicidal combinations, include component as follows in parts by mass:
The preparation method of the long-acting slow-release plant source compound Herbicidal combinations, comprises the following steps:
(1) tea seed cake after tea seed extracting oil, which is placed in micronizer, to be pulverized, and is sieved with 100 mesh sieve, is obtained
Tea seed cake powder；Tea seed cake powder is used into CO2Supercritical fluid extraction, wherein ethyl alcohol is entrainer, 45 DEG C of extraction temperature, extracting pressure
25Mpa, extraction time 4h, CO2Flow velocity is 15L/h, and the dry removal solvent of product obtains Tea Saponin；
(2) by the root of kuh-seng, cauline leaf and fruit are dry, pulverize, sieve with 100 mesh sieve, obtain kuh-seng powder；Using quality point
Number extracts 50 DEG C of kuh-seng powder 2 times, each 1h for 80% ethanol water, and filtrate is collected in filtering, is concentrated, dry, obtains hardship
Conopsea extraction；
(3) English walnut is dry, pulverize, sieve with 100 mesh sieve, obtain walnut powder；Then walnut powder and water are mixed, is added
Pectase (enzymatic activity 50000U/g) and cellulase (enzymatic activity 50000U/g) are digested, and enzymatic hydrolysis mixed liquor is obtained,
Wherein, the dosage of pectase is digest mixed liquor quality 2%, and the dosage of cellulase is digest mixed liquor quality 1%；Enzyme
Using chloroform as solvent after solution, soxhlet type is carried out to enzymatic hydrolysis mixed liquor, extraction temperature is 80 DEG C, time 3h；Then it filters, receives
Collect filtrate, is concentrated, it is dry, obtain Juglans regia L. extract；
(4) marigold is dry, pulverize, sieve with 100 mesh sieve, obtain marigold powder；Using chloroform as solvent, to marigold
Powder carries out soxhlet type, and extraction temperature is 100 DEG C, time 4h；Then it filters, collects filtrate, be concentrated, it is dry, obtained for ten thousand longevity
Chrysanthemum extract；
(5) English walnut made from shrubby sophora extract made from Tea Saponin made from step (1), step (2), step (3) is mentioned
Take Flos Tagetis Erectae extract made from object and step (4), n-nonanoic acid, glyphosate, polyvinyl alcohol, dodecyl sodium sulfate, BYC-408 mixed
It closes uniformly, obtains long-acting slow-release plant source compound Herbicidal combinations.
Effect example
It is more (comprising non-irrigated seedling knotweed, alternanthera philoxeroides, flat stalk grass, needle spikesedge herb, shepherd's purse grass, Asiatic plantain etc. to choose one piece of weeds type
Weeds), the vigorous test field of weeds growing way as experiment field, be divided into 6 pieces, Tea Saponin made from embodiment 1, kuh-seng mention
Take object, Juglans regia L. extract, Flos Tagetis Erectae extract and long-acting slow-release plant source compound Herbicidal combinations respectively as test medicine.
When weeds length to 2~4 leaf phase, cauline leaf spraying treatment is carried out, wherein every kg test medicine is watered 200kg water.After a week everywhere
Reason group records the indexs such as growing way, the distribution area/experimental plot gross area, the fresh grass gross weight reduced rate of weeds.
The results are shown in Table 1.Although individual Tea Saponin, shrubby sophora extract, Juglans regia L. extract, Flos Tagetis Erectae extract also have
There is certain herbicidal effect, but removal effect is not significant, and long-acting slow-release plant source compound weeding group made from embodiment 1
Closing object has significant herbicidal effect, compared with the control group, the decadence of weeds growing way, withered, the distribution area/experimental plot gross area
(%) decline is obvious, and fresh grass gross weight reduces significant.
1 different tests chemical weeding effect assessment of table
Long-acting slow-release plant source compound Herbicidal combinations produced by the present invention can be applied to the anti-of various crop field weed
It removes.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of long-acting slow-release plant source compound Herbicidal combinations, it is characterised in that include component as follows in parts by mass:
2. long-acting slow-release plant source compound Herbicidal combinations according to claim 1, it is characterised in that comprising pressing matter as follows
Measure the component of part meter:
3. the preparation method of long-acting slow-release plant source compound Herbicidal combinations of any of claims 1 or 2, it is characterised in that include
Following steps:
(1) tea seed cake drying, ultramicro grinding, sieving after tea seed extracting oil, obtain tea seed cake powder, and tea seed cake powder is used CO2It is overcritical
Fluid extraction, product is dry, obtains Tea Saponin；
(2) kuh-seng is dry, ultramicro grinding, sieving, obtain kuh-seng powder；Kuh-seng powder is extracted using ethanol water, mistake
Filtrate is collected in filter, is concentrated, dry, obtains shrubby sophora extract；
(3) English walnut is dry, ultramicro grinding, sieving, obtain walnut powder；Then walnut powder and water are mixed, be added pectase and
Cellulase is digested, and enzymatic hydrolysis mixed liquor is obtained；Using chloroform as solvent after enzymatic hydrolysis, soxhlet type is carried out to enzymatic hydrolysis mixed liquor,
Filtrate is collected in filtering, is concentrated, dry, obtains Juglans regia L. extract；
(4) marigold is dry, ultramicro grinding, sieving, obtain marigold powder；Using chloroform as solvent, rope is carried out to marigold powder
Family name's extracting, filtering, collect filtrate, are concentrated, dry, obtain Flos Tagetis Erectae extract；
(5) by Juglans regia L. extract made from shrubby sophora extract made from Tea Saponin made from step (1), step (2), step (3)
It is mixed with Flos Tagetis Erectae extract made from step (4), n-nonanoic acid, glyphosate, polyvinyl alcohol, dodecyl sodium sulfate and BYC-408
Uniformly, long-acting slow-release plant source compound Herbicidal combinations are obtained.
4. the preparation method of long-acting slow-release plant source compound Herbicidal combinations according to claim 3, it is characterised in that:
CO described in step (1)2The condition of supercritical fluid extraction is that ethyl alcohol is entrainer, and extraction temperature is 35~45 DEG C, extraction
Pressure power is 25~40Mpa, and extraction time is 2~4h, CO2Flow velocity is 10~15L/h.
5. the preparation method of long-acting slow-release plant source compound Herbicidal combinations according to claim 3, it is characterised in that:
The mass fraction of ethyl alcohol is 50~80% in ethanol water described in step (2)；
The condition of extraction described in step (2) is 50~65 DEG C of extractions 2~3 times, every time 1~3h.
6. the preparation method of long-acting slow-release plant source compound Herbicidal combinations according to claim 3, it is characterised in that:
The dosage of pectase described in step (3) is digest mixed liquor quality 2~5%, and the enzymatic activity of pectase is 10000
~50000U/g；
The dosage of cellulase described in step (3) is digest mixed liquor quality 1~3%, and the enzymatic activity of cellulase is
10000~50000U/g.
7. the preparation method of long-acting slow-release plant source compound Herbicidal combinations according to claim 3, it is characterised in that:
The temperature of soxhlet type described in step (3) is 80~100 DEG C, and extraction time is 2~3h.
8. the preparation method of long-acting slow-release plant source compound Herbicidal combinations according to claim 3, it is characterised in that:
The temperature of soxhlet type described in step (4) is 80~100 DEG C, and extraction time is 4~6h.
9. the described in any item long-acting slow-release plant source compound Herbicidal combinations of claim 1~2 are in herbicide preparation field
Application.
10. described in any item long-acting slow-release plant source compound Herbicidal combinations are prepared in herbicide and are led according to claim 1~2
Application in domain, it is characterised in that:
The dosage form of the herbicide is wettable powder, suspending agent, missible oil, microemulsion, aqueous emulsion, granule or water-dispersible grain
Agent.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Application publication date: 20181221 |