CN107996586A - A kind of herbicidal composition and preparation and its application - Google Patents
A kind of herbicidal composition and preparation and its application Download PDFInfo
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- CN107996586A CN107996586A CN201610967138.8A CN201610967138A CN107996586A CN 107996586 A CN107996586 A CN 107996586A CN 201610967138 A CN201610967138 A CN 201610967138A CN 107996586 A CN107996586 A CN 107996586A
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- herbicidal composition
- sodium
- bispyribac
- bentazone
- cyhalofop
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/88—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms
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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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to field of agricultural herbicide, a kind of herbicidal composition and preparation and its application are disclosed, the active ingredient of the herbicidal composition includes bentazone, cyhalofop-butyl and bispyribac-sodium, the bentazone, and the mass ratio of cyhalofop-butyl and bispyribac-sodium is 1 100：1‑15：1.Herbicidal composition provided by the invention shows fabulous synergistic effect, mixed composition significantly improves herbicidal effect compared with its single dose, elder weed and some resistant weeds can thoroughly be prevented, the dosage of pesticide is reduced, thus reduces the drug cost of peasant and the influence degree to environment；It can effectively delay generation and progress of the weeds to single dose resistance while herbicide herbicide controlling spectrum is expanded.Also, herbicidal composition provided by the invention is in addition to synergy significantly is matched, to safety outside rice check.
Description
Technical field
The present invention relates to field of agricultural herbicide, and in particular, to a kind of herbicidal composition and preparation and its application, it is special
It is not to be related to for preventing composition and preparation and its application in rice terrace annual grassy weeds.
Background technology
Bentazone (bentazone) is a kind of selective killing type herbicide after seedling, at weeds seedling stage cauline leaf
Reason, shown in its structure such as formula (I), bentazone raw pesticide low toxicity, can prevent and kill off annual broadleaf weed and sedge weed.Such as：Armstrong,
Dayflower, sandwort, Siberian cocklebur, summer cypress, piemarker, corn gromwell, clearvers, shepherd's purse, Descurainia sophia (wheat wormwood artemisia), purslane, field thistle, lamb's-quarters,
Knotweed, black nightshade, chickweed, difformed galingale herb, cyperus iria, globe daisy nutgrass flatsedge, chufa, nutgrass flatsedge, rhizome of nutgrass flatsedge etc., but to grassy weed
It is invalid.
Cyhalofop-butyl (cyhalofop-butyl), shown in its structure such as formula (II), cyhalofop-butyl is fragrant phenoxy phenoxy propionic acid
The only kind to rice with tight security, is uptake and translocation herbicide in herbicide.By the blade and leaf of plant
Sheath absorbs, and bast conduction, accumulates the meristem zone in plant, resist acetyl-CoA carboxylase (ACCase), make fat
Acid synthesis stops, and the growth division of cell cannot be normally carried out, and the structure containing fat such as membranous system is destroyed, and finally results in Plant death.
It is slower that weeds death is absorbed into from cyhalofop-butyl, is generally required 1-3 weeks.It is mainly used for preventing and kill off important grass family miscellaneous
Grass, it is efficient to moleplant seed, there is certain preventive effect to low age barnyard grass, can also prevent and kill off lady's-grass, Paspalum distichum, green bristlegrass, eleusine indica, see
Wheat ma etc..It is invalid to sedge weed and broad leaved weed.
Bispyribac-sodium (bispyribac-sodium), shown in its structure such as formula (III), bispyribac-sodium can be used for direct-seeding dry rice, water
Direct sowing of rice field, transplanted rice field, can effectively prevent paddy field annual gramineous weed, most of broad leaved weed and part Sha
Grass, has special efficacy to barnyard grass and Paspalum distichum (red to mix root grass, Entada phaseoloides), available for preventing and kill off above the average age for marriage barnyard grass and other herbicides are produced
The barnyard grass of raw resistance.
The content of the invention
Have well to rice terrace annual broadleaf weed, grassy weed and nutgrass flatsedge the object of the present invention is to provide a kind of
Preventive effect, the herbicidal composition safer to rice, particularly to barnyard grass and resistance barnyard grass, moleplant seed, nutgrass flatsedge, difformed galingale herb,
The rice fields such as cyperus iria, globe daisy nutgrass flatsedge, chufa, the rhizome of nutgrass flatsedge, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, false loosestrife, sweet wine intestines, Procumbent Falsepimpernel are normal
See that weeds have good prevention effect.
The present inventor conducts in-depth research bentazone, cyhalofop-butyl and bispyribac-sodium ternary built, discovery bentazone,
Cyhalofop-butyl and bispyribac-sodium show obvious synergy in the range of certain compound proportion to rice terrace annual grassy weeds
Effect.
According to the first aspect of the invention, the present invention provides a kind of herbicidal composition, wherein, the combinations of herbicides
The active ingredient of thing contains bentazone, cyhalofop-butyl and bispyribac-sodium, and the mass ratio of the bentazone, cyhalofop-butyl and bispyribac-sodium is
1-100：1-15：1.
According to the second aspect of the invention, the present invention provides the preparation prepared by said herbicidal composition, wherein, institute
The formulation for stating preparation is missible oil, aqueous emulsion, microemulsion, soluble liquid, aqueous suspension agent, suspension emulsion, ultra-low volume spray agent, oil
It is suspending agent, microcapsule suspending agent, water surface film-spreading oil solution, wettable powder, water dispersible granules, dry suspending agent, soluble powder, solvable
Property granula, emulsifiable pulvis, emulsifiable granule, granule, solid microcapsule formulation, effervescent tablet, effervescent, water drift
Floating dispersible granule or seed coat agent.
According to the third aspect of the invention we, the present invention provides above-mentioned herbicidal composition or preparation prevention barnyard grass and
Resistance barnyard grass, moleplant seed, nutgrass flatsedge, difformed galingale herb, cyperus iria, globe daisy nutgrass flatsedge, chufa, the rhizome of nutgrass flatsedge, Monochoria vaginalis, Monochoria korsakowii,
The application in one or more weeds in rhizoma alismatis, false loosestrife, sweet wine intestines and Procumbent Falsepimpernel.
According to the fourth aspect of the present invention, the present invention provides above-mentioned herbicidal composition or preparation in prevention rice
Application in the annual grassy weeds of field.
Through the above technical solutions, can not only expand herbicide controlling spectrum, cost, saving of work and time are reduced, moreover it is possible to reduce usage amount, prolong
The generation of slow herbicide resistance, can effectively prevent barnyard grass, resistance barnyard grass, moleplant seed, nutgrass flatsedge, difformed galingale herb, cyperus iria, ball
The weeds such as flower nutgrass flatsedge, chufa, the rhizome of nutgrass flatsedge, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, false loosestrife, sweet wine intestines, Procumbent Falsepimpernel.And to rice
Security is fabulous, can the synergistic disposable weeds prevented in rice terrace.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The endpoint of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of a scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
Herbicidal composition provided by the invention, wherein, the active ingredient of the herbicidal composition includes bentazone, cyanogen
Fluorine grass ester and bispyribac-sodium, the mass ratio of the bentazone, cyhalofop-butyl and bispyribac-sodium is 1-100：1-15：1.
In the preferred embodiment of the present invention, the mass ratio of the bentazone, cyhalofop-butyl and bispyribac-sodium is
10-80：2.5-10：1；It is highly preferred that the mass ratio of the bentazone, cyhalofop-butyl and bispyribac-sodium is 10-40：2.5-10：1；
It is highly preferred that the mass ratio of the bentazone, cyhalofop-butyl and bispyribac-sodium is 10-40：2.5-5：1.
In addition, in another preferred embodiment of the present invention, the matter of the bentazone, cyhalofop-butyl and bispyribac-sodium
It is 10-80 to measure ratio：2.5-5：1.
Proportioning as the particularly preferred bentazone of the application, cyhalofop-butyl and bispyribac-sodium can be enumerated：Bentazone, cyanogen fluorine
Careless ester and the mass ratio of bispyribac-sodium are 40：10：1、80：10：1、80：5：1、40：2.5：1、20：10：1 or 10：5：1 proportioning.
In the herbicidal composition of the present invention, content of the active ingredient in herbicidal composition can be in very big model
Interior change is enclosed, specifically, content of the active ingredient in the herbicidal composition is 1-95 weight %, is preferably 5-70
Weight %, more preferably 10-30 weight %.
The herbicidal composition of the present invention, in addition to the active ingredient (s, also typically includes acceptable surface-active in Pesticide Science
Agent and carrier.
Above-mentioned surfactant can be the various surfactants well known to field of pesticide preparation, and of the invention is preferably
One or more in emulsifying agent, dispersant and wetting agent.
Other carriers in addition to above-mentioned surfactant can be the various carriers well known to field of pesticide preparation, including each
Kind silicates, carbonate, Sulfates, oxide-based, phosphoric acid salt, plant vector class, synthetic vectors class.Specifically,
Such as：It is white carbon, kaolin, diatomite, clay, talcum, organobentonite, float stone, titanium dioxide, dextrin, cellulose powder, light
Matter calcium carbonate, soluble starch, cornstarch, sawdust powder, urea, amine fertilizer, mixture, glucose, the malt of urea and amine fertilizer
Sugar, sucrose, Anhydrous potassium carbonate, natrium carbonicum calcinatum, Carbon Dioxide hydrogen potassium, anhydrous sodium bicarbonate, attapulgite, Anhydrous potassium carbonate with
One or more in the mixture and the mixture of natrium carbonicum calcinatum and anhydrous sodium bicarbonate of Carbon Dioxide hydrogen potassium.
Mentioned emulsifier can be the various emulsifying agents well known to field of pesticide preparation, and specifically, which can be
Calcium dodecyl benzene sulfonate, three phenethyl phenol polyoxyethylene ether phosphates, fatty alcohol polyoxyethylene ether, alkylphenol-polyethenoxy
Ether, alkylphenol-polyethenoxy polyethenoxy ether, fatty amine, the ethylene oxide adduct of fatty acid amide, polyoxyethylene carboxylate,
Rosin acid ethylene oxide adduct, polyol fatty acid ester and its ethylene oxide adduct, styryl phenyl polyoxyethylene ether,
Alkyl phenol formaldehyde resin polyoxyethylene ether, terminal hydroxy group polyoxyethylene poly-oxygen propylene aether, styrylphenol formaldehyde resin polyoxy second
One or more in alkene polyethenoxy ether and castor oil polyoxyethylene ether.
Above-mentioned dispersant can be the various dispersants well known to formulations of pesticide field, and specifically, which is propylene
Sour homopolymer sodium salt, Malaysia acid disodium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, rosin segmented polyoxyethylene ether polyethenoxy ether sulphur
Hydrochlorate, terminal hydroxy group polyoxyethylene poly-oxygen propylene aether block copolymer, three phenethyl phenol polyoxyethylene ether phosphates, fatty alcohol polyoxy
One or more in ethene ether phosphate and p-hydroxyphenyl lignin sulfonic acid sodium salt.
Above-mentioned wetting agent can be the various wetting agents well known to formulations of pesticide field, and specifically, which can be
Lauryl sodium sulfate, Teepol, neopelex, fatty alcohol polyoxyethylene ether, alkylnaphthalene sulfonate, alkane
One or more in base phenol resin polyoxyethylene ether sulfate.
Herbicidal composition according to the present invention, it is common which can also contain field of pesticide preparation institute
Various preparation used additives, specifically, said preparation used additives can be solvent, cosolvent, thickener, antifreezing agent, capsule material, protection
One or more in agent, defoamer, disintegrant, stabilizer, preservative and binding agent.
Above-mentioned solvent can be the various solvents well known to formulations of pesticide field, and specifically, which can be organic molten
One or more in agent, vegetable oil, mineral oil, solvent naphtha and water.
Wherein, the organic solvent includes 1-methyl-2-pyrrolidinone, tetrahydrofuran, dimethyl sulfoxide (DMSO), N, the N- dimethyl last of the ten Heavenly stems
Acid amides, n,N-Dimethylformamide, trimethylbenzene, durene, dimethylbenzene, toluene, octane, heptane, methanol, isopropanol, n-butanol,
One or more in tetrahydrofurfuryl alcohol, tributyl phosphate, 1,4- dioxane and cyclohexanone.
The vegetable oil includes methylated vegetable oils, turpentine-based vegetable oil, turpentine oil, epoxidized soybean oil, soybean oil, peanut
One or more in oil, rapeseed oil, castor oil, corn oil and pine-seed oil.
The mineral oil includes the one or more in liquid wax, machine oil, kerosene and lubricating oil.
Meanwhile above-mentioned solvent can also be used as cosolvent.
Above-mentioned antifreezing agent can be the various antifreezing agents well known to formulations of pesticide field, and the present invention is preferably ethylene glycol, third
One or more in glycol, glycerine and urea.
Above-mentioned thickener can be the various thickeners well known to formulations of pesticide field, and specifically, which can be
Xanthans, polyvinyl alcohol, POLYPROPYLENE GLYCOL, polyethylene glycol, white carbon, diatomite, kaolin, clay, sodium alginate, alumina silicate
One or more in magnesium, lagoriolite, carboxymethyl cellulose, hydroxypropyl cellulose sodium and organobentonite.
Above-mentioned capsule material can be formulations of pesticide field well known to various capsule materials, the present invention be preferably polyurethane, polyureas and
One or more in Lauxite.
Above-mentioned protective agent can be the various protective agents well known to formulations of pesticide field, and the present invention is preferably polyvinyl alcohol
And/or polyethylene glycol.
Above-mentioned defoamer can be the various defoamers well known to formulations of pesticide field, and the present invention is preferably organic silica
One or more in alkane, tributyl phosphate and silicone.
One or more of the aforementioned stable agent in triphenyl phosphite, epoxychloropropane and aceticanhydride.
Foregoing preservatives are selected from benzoic acid, sodium benzoate, 1,2- benzisothiazole-3-ketones (abbreviation BIT), Kathon CG and mountain
One or more in potassium sorbate.
The present invention also provides a kind of preparation as prepared by said herbicidal composition, the formulation of the preparation is missible oil,
Aqueous emulsion, microemulsion, soluble liquid, aqueous suspension agent, suspension emulsion, ultra-low volume spray agent, oil-suspending agent, microcapsule suspending agent,
Water surface film-spreading oil solution, wettable powder, water dispersible granules, dry suspending agent, soluble powder, soluble granula, emulsifiable pulvis,
Emulsifiable granule, granule, solid microcapsule formulation, effervescent tablet, effervescent, water floating dispersible granule or kind clothing
Agent.Above-mentioned formulation can be prepared by the conventional method of this area.Under preferable case, formulation of the invention is water dispersant or can
Scattered oil-suspending agent.
Under preferable case, the composition of the cream preparation weight percent is active ingredient 1~95%, cosolvent 0-
20%th, emulsifying agent 1~30%, solvent complement to 100%.
The preparation method of above-mentioned cream preparation can for example include mixing each active component, solvent, cosolvent and emulsifying agent
Close stirring and form it into homogeneous transparent oil phase, you can obtain cream preparation.
Under preferable case, the composition of aqueous emulsion or the microemulsion weight percent is active ingredient 1~95%, emulsifies
Agent 1~30%, cosolvent 0~30%, solvent 1~30%, antifreezing agent 0~10%, thickener 0~10%, water complement to
100%.
Under preferable case, the method for producing aqueous emulsion can for example be included active ingredient, emulsifying agent, cosolvent and molten
Agent mixes, and becomes homogeneous oil phase；Water, thickener, antifreezing agent etc. are mixed, make it into homogeneous water phase.Under high speed shear,
Water is added to oil phase or oil phase is added to water phase, forms the aqueous emulsion of favorable dispersibility.
Under preferable case, the preparation method of the microemulsion is to be mixed into homogeneous by active ingredient, emulsifying agent, solvent
Transparent oil phase.Under conditions of stirring.It is gradual to add water, form it into the microemulsion of transparent and homogeneous.
Under preferable case, the composition of the aqueous suspension agent weight percent is active ingredient 1~95%, surfactant
1~30%, antifreezing agent 1~10%, thickener 0.1~5%, water complement to 100%.
Under preferable case, the composition of the oil-suspending agent weight percent is active ingredient 1~95%, emulsifying agent 1~
30%th, dispersant 0.1~10%, thickener 0.1~5%, oil complement to 100%.
The preparation method of water/oil-suspending agent：With water or oil for medium, the auxiliary agents such as active component, surfactant are added
In sand milling kettle, it is ground to certain particle diameter, filters.The thickener measured is added in ground mother liquor, cut again
Cut and be uniformly dispersed.Oil-suspending agent or aqueous suspension agent is made.
Under preferable case, the soluble granula, soluble powder, water dispersible granules or wettable powder percentage by weight
Several compositions is active ingredient 1~95%, surfactant 1~30%, other carriers complement to 100%.
Wherein, the preparation method of water-dispersible granules and soluble granula is：By each active component, dispersant, wetting agent,
Carrier etc. be uniformly mixed, then by air-flow crushing to certain particle diameter, add water and mediated, be eventually adding in comminutor into
Row is granulated, and water-dispersible granules or soluble granula are can obtain after dry.
The preparation method of soluble powder and wettable powder is：By each active component, various auxiliary agents and other carriers etc.
Filler is sufficiently mixed, and uses ultra-fine pulverizer disintegrating.
Present invention also offers above-mentioned herbicidal composition or preparation in prevention barnyard grass and resistance barnyard grass, moleplant seed, Sha
Grass, difformed galingale herb, cyperus iria, globe daisy nutgrass flatsedge, chufa, the rhizome of nutgrass flatsedge, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, false loosestrife, sweet wine intestines, footpath between fields
The application served etc. in weeds.
Present invention also offers above-mentioned herbicidal composition or preparation in answering in rice terrace annual grassy weeds is prevented
With.Wherein, the annual grassy weeds is barnyard grass and resistance barnyard grass, moleplant seed, nutgrass flatsedge, difformed galingale herb, cyperus iria, globe daisy Sha
Grass, chufa, the rhizome of nutgrass flatsedge, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, false loosestrife, sweet wine intestines, Procumbent Falsepimpernel etc..
The herbicidal composition of the present invention can be provided in the form of finished product preparation, i.e., each material has mixed in composition；
It can also be provided with independent dosage form, voluntarily be mixed in bucket or tank using preceding, and selected according to the concentration of required active material
Mix to selecting property and be diluted with water.
The composition of the present invention can be also used in mixed way with other compounds with sterilization, desinsection or herbicidal performance, also may be used
It is used in mixed way with nematicide, protective agent, growth regulator, nutrient for plants or soil conditioner.
The application method of the herbicidal composition of the present invention is simple, after weed germination, to crop and plant growth
Place is sprayed administration according to a conventional method, its amount of application is applied per acre under normal circumstances depending on weather conditions or crop condition
Composition active constituent content 30-50g, can effectively prevent and kill off 1 year weeds.
The herbicidal composition of the present invention, its herbicidal effect is usually related with extraneous factor such as weather, but by using suitable
When formulation can slow down the influence of weather.
The present invention will be described in detail by way of examples below.
In following preparation example, percentage composition is weight percentage in all formulations proportioning.
In following experimental example, 95 weight % bentazones are that Anhui Fengle Agricultural Co., Ltd's trade mark is PD20121399
Commercially available product, 97 weight % cyhalofop-butyls are the commercially available product that Hefei Xingyu Chemical Co., Ltd's trade mark is PD20132333,
98 weight % bispyribac-sodiums are the commercially available product that Hefei Xingyu Chemical Co., Ltd's trade mark is PD20120495.
Experimental example 1
For trying target：Amaranthus retroflexus (Amaranthus retroflexus) and barnyard grass (Echinochloa crusgalli
(L.) Beauv) pick up near the farmland of Xiangyang City of Hubei Province Huang market town.
Test medicine：Bentazone, cyhalofop-butyl, bispyribac-sodium
The preparation of liquid
The preparation of single dose：It is measured according to NY/T1155.6-2006, for liquid using now with the current, active compound is molten using DMF
Xie Hou, adds Triton X-100 emulsifying agents, is configured to 10% mother liquor.According to medicament characteristic, 6 agent from high to low are set
Amount, dosage are respectively：Bentazone 18.75,37.5,75,150,300,600g.ai./ha, cyhalofop-butyl 1.875,3.75,7.5,
15th, 30,60g.ai./ha, bispyribac-sodium 0.75,1.5,3,6,12,24g.ai./ha, with containing 0.1% Triton X- during dispenser
100 emulsifying agent water are diluted to series concentration.
The preparation of bentazone, cyhalofop-butyl and bispyribac-sodium mixture：It is measured according to NY/T1155.6-2006, bentazone：
Cyhalofop-butyl：Bispyribac-sodium in mass ratio 40：10：1、80：10：1、80：5：1、40：2.5：1、20：10：1 and 10：5：Six of 1
Proportioning, uses mother liquor.Then, 6 dosage from high to low are set, dosage 28.125,56.25,112.5,225,450,
600g.ai./ha。
Application method：Under greenhouse, cauline leaf even spraying processing is carried out respectively at Amaranthus retroflexus, barnyard grass 2-4 leaf phases.By accurate
Actual spraying area (the 0.12m of spray tower2, 10mL is watered, equivalent mu water consumption 55.6kg) accurately calculate and prepare required liquid,
By pending plastic tub alms bowl annular array on rotating spraying platform, even spraying processing.Atomisation pressure is 2Kg/m2, tapered injection
Head flow is 100mL/min.
The damage symptoms (such as growth inhibition, chlorosis, deformity) of weeds are recorded after dispenser in detail.Each processing is weighed after 25 days
Weeds aerial part fresh weight, calculates fresh weight preventive effect.
Fresh weight preventive effect (the %)=blank control fresh weight of (blank control fresh weight-processing fresh weight) × 100/.
Virulence regression equation, related coefficient (R are obtained according to niqueMin analytic approach2), suppress in concentration (EC50), calculate altogether
Malicious coefficient (CTC), judges its mode of application, its result is as shown in table 1 below, table 2.
Synergy evaluation method：Synergy class of the result of the test with the co-toxicity coefficient method evaluation of Sun Yunpei after mixed
Type.
Toxicity index=(EC50/ of standard agent is tested the EC50 of medicament) × 100
The co-toxicity coefficient (CTC) of mixture=(the toxicity index theoretical value of toxicity index measured value/mixture of mixture) × 100
Toxicity index × B of ratio+Bs of the toxicity index × A of toxicity index theoretical value=A of mixture in mixture is mixed
Ratios of the toxicity index × C of ratio+C in agent in mixture
Criterion：Co-toxicity coefficient ＜ 80 is antagonism；It is summation action between 80-120, when ＞ 120 is synergy
Effect.
To the toxicity test of Amaranthus retroflexus, the results are shown in Table 1, and to the toxicity test of barnyard grass, the results are shown in Table 2.
Table 1
| Medicament | Regression equation | R2 | EC50(g·ai/ha) | CTC | Synergy |
| Bentazone | Y=27.35x+3.90 | 0.9780 | 49 | _ | - |
| Cyhalofop-butyl | Y=12.45x+6.13 | 0.9422 | 3311 | _ | - |
| Bispyribac-sodium | Y=41.93x+66.56 | 0.9451 | 0.4 | _ | - |
| 40:10:1 | Y=30.24x+28.30 | 0.9777 | 5.2 | 295 | Synergy |
| 80:10:1 | Y=34.15x+15.98 | 0.9205 | 10 | 220 | Synergy |
| 80:5:1 | Y=52.09x+15.46 | 0.9997 | 4.6 | 452 | Synergy |
| 40:2.5:1 | Y=22.74x+57.33 | 0.9345 | 0.5 | 2623 | Synergy |
| 20:10:1 | Y=20.69x+48.93 | 0.9352 | 1.1 | 968 | Synergy |
| 10:5:1 | Y=15.45x+55.67 | 0.9525 | 0.4 | 1478 | Synergy |
Note：Each quality proportioning is bentazone in 1 medicament column of table：Cyhalofop-butyl：Bispyribac-sodium.
Table 2
| Medicament | Regression equation | R2 | EC50(g·ai/ha) | CTC | Synergy |
| Bentazone | Y=76.35x-108.46 | 0.9228 | 120.2 | _ | - |
| Cyhalofop-butyl | Y=58.97x+45.88 | 0.9992 | 1.2 | _ | - |
| Bispyribac-sodium | Y=56.37x+55.15 | 0.9721 | 0.8 | _ | - |
| 40:10:1 | Y=74.17x+5.91 | 0.9244 | 3.9 | 132 | Synergy |
| 80:10:1 | Y=60.46x-6.05 | 0.9966 | 7.3 | 122 | Synergy |
| 80:5:1 | Y=74.619x-26.58 | 0.9945 | 10.6 | 133 | Synergy |
| 40:2.5:1 | Y=47.39x+4.14 | 0.9998 | 9.3 | 128 | Synergy |
| 20:10:1 | Y=31.79x+39.05 | 0.9901 | 2.2 | 145 | Synergy |
| 10:5:1 | Y=19.49x+48.84 | 0.9381 | 1.1 | 264 | Synergy |
Note：Each quality proportioning is bentazone in 2 medicament column of table：Cyhalofop-butyl：Bispyribac-sodium.
It can be seen that by the Toxicity Determination result of Tables 1 and 2 Lai bentazone, cyhalofop-butyl and bispyribac-sodium mixture are each
Handle and 120 are all higher than to the co-toxicity coefficient (CTC) of Amaranthus retroflexus and barnyard grass, show obvious synergistic function.
Preparation example 1
25 weight % bentazone cyhalofop-butyl bispyribac-sodium emulsifiable concentrate (mass ratioes 10：5：1) preparation.
It is sub- according to 15.6 weight % bentazones, 7.8 weight % cyhalofop-butyls, 1.6 weight % bispyribac-sodiums, 5 weight % diformazans
Each raw material is stirred mixing by the proportioning that sulfone, toluene are supplemented to 100 weight %, and forms it into homogeneous transparent oil, that is, is obtained
The missible oil of 25 weight %.
Preparation example 2
25 weight % bentazone cyhalofop-butyl bispyribac-sodium emulsifiable concentrate (mass ratioes 40：2.5：1) preparation.
According to 23 weight % bentazones, 1.4 weight % cyhalofop-butyls, 0.6 weight % bispyribac-sodiums, 5 weight % dimethyl sulfoxides,
Each raw material is stirred mixing by the proportioning that toluene is supplemented to 100 weight %, and forms it into homogeneous transparent oil, that is, obtains 25 weights
Measure the missible oil of %.
Experimental example 2：Field efficacy is tested
Experimental field select barnyard grass, nutgrass flatsedge, false loosestrife, Procumbent Falsepimpernel that more rice terrace occurs to carry out, each experimental plot division
Table 3 is referred to, per plot area 33m2, for the amount of being watered by 45Kg/ mus of calculating, spraying apparatus is Singapore profit agriculture Agrolex
Sprayer Jacto HD-400 knapsack sprayers, Fan spray head.Experiment sets 6 processing altogether, and often processing sets 3 repetitions, locates
Reason 1 is handled for 25 weight % bentazone cyhalofop-butyl bispyribac-sodium emulsifiable concentrates being prepared with preparation example 1, processing 2
The 25 weight % bentazone cyhalofop-butyl bispyribac-sodium emulsifiable concentrates to be prepared with preparation example 2 are handled, and processing 3 is 48
Weight % bentazone aquas are handled, and processing 4 is handled with 10 weight % cyhalofop-butyl missible oils, and processing 5 is 100g/L
Bispyribac-sodium suspending agent is handled, and processing 6 is blank control (not dispenser not weeding).
25 days statistics are each after medicine handles number of weeds amount and claims fresh weight, calculates fresh weight preventive effect, the results are shown in Table 4.
Fresh weight preventive effect (the %)=check plot fresh weight of (check plot fresh weight-treatment region fresh weight) × 100/
Table 3
Roadside →
| Handle 1 (300) | Handle 1 (450) | Handle 1 (525) | Processing 6 | Handle 2 (525) |
| Handle 2 (300) | Processing 3 | Handle 2 (450) | Processing 5 | Processing 4 |
| Processing 6 | Handle 1 (450) | Processing 5 | Handle 2 (525) | Processing 3 |
| Processing 5 | Handle 1 (300) | Processing 4 | Handle 2 (525) | Handle 1 (450) |
| Handle 2 (300) | Handle 2 (450) | Processing 3 | Handle 1 (525) | Handle 2 (450) |
| Handle 1 (525) | Processing 6 | Handle 2 (300) | Processing 4 | Handle 1 (300) |
Table 4
25 days 25 weight % bentazone cyhalofop-butyl bispyribac-sodiums after medicine it can be seen from the field test results of table 4
Emulsifiable concentrate (10:5:1) fresh weight of the nutgrass flatsedge of rice terrace, false loosestrife and Procumbent Falsepimpernel is prevented when amount of application is 450-525gai/ha
Effect reaches more than 80%, and reaches more than 70% to the fresh weight preventive effect of rice terrace barnyard grass, is all remarkably higher than each single dose processing.It is right
The preventive effect of barnyard grass is slightly below to the preventive effects of the other weeds in rice field, traces it to its cause the more other weeds of barnyard grass careless ages when being probably dispenser
Greatly.
25 weight % bentazone cyhalofop-butyl bispyribac-sodiums emulsifiable concentrates (40:2.5:1) amount of application is 450-525gai/
10 are less than to the barnyard grass preventive effect of rice terrace during ha:5:1, and to the preventive effect and 10 of other weeds in paddy field:5:1 preventive effect is suitable.
Meanwhile during pilot survey, the rice seedlings of processing 1 and the processing of processing 2 are compared with blank control, growing way one
Cause, the poisoning such as macula lutea, necrosis does not occur in blade.It follows that the herbicidal composition of the present invention is to rice safety.
Claims (10)
1. a kind of herbicidal composition, it is characterised in that the active ingredient of the herbicidal composition includes bentazone, cyanogen fluorine grass
Ester and bispyribac-sodium, the mass ratio of the bentazone, cyhalofop-butyl and bispyribac-sodium is 1-100：1-15：1.
2. herbicidal composition according to claim 1, wherein, the quality of the bentazone, cyhalofop-butyl and bispyribac-sodium
Than for 10-80：2.5-10：1.
3. herbicidal composition according to claim 2, wherein, the quality of the bentazone, cyhalofop-butyl and bispyribac-sodium
Than for 10-40：2.5-10：1.
4. herbicidal composition according to claim 3, wherein, the quality of the bentazone, cyhalofop-butyl and bispyribac-sodium
Than for 10-40：2.5-5：1.
5. herbicidal composition according to claim 2, wherein, the quality of the bentazone, cyhalofop-butyl and bispyribac-sodium
Than for 10-80：2.5-5：1.
6. according to the herbicidal composition described in any one in claim 1-5, wherein, the active ingredient is in the weeding
Content in agent composition is 1-95 weight %.
7. according to the herbicidal composition described in any one in claim 1-5, wherein, the herbicidal composition further includes
Acceptable surfactant and carrier in Pesticide Science.
8. as the preparation prepared by the herbicidal composition described in any one in claim 1-7, wherein, the agent of the preparation
Type is missible oil, aqueous emulsion, microemulsion, soluble liquid, aqueous suspension agent, suspension emulsion, ultra-low volume spray agent, oil-suspending agent, micro-
Capsule suspending agent, water surface film-spreading oil solution, wettable powder, water dispersible granules, dry suspending agent, soluble powder, soluble granula, can
Emulsified powder, emulsifiable granule, granule, solid microcapsule formulation, effervescent tablet, effervescent, scattered of water floating
Granula or seed coat agent.
9. in claim 1-7 the herbicidal composition described in any one or the preparation described in claim 8 prevention barnyard grass,
Moleplant seed, nutgrass flatsedge, difformed galingale herb, cyperus iria, globe daisy nutgrass flatsedge, chufa, the rhizome of nutgrass flatsedge, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, cloves
The application in one or more weeds in knotweed, sweet wine intestines and Procumbent Falsepimpernel.
10. the herbicidal composition described in any one or the preparation described in claim 8 are in prevention rice in claim 1-7
Application in the annual grassy weeds of field.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379289A (en) * | 2011-12-19 | 2012-03-21 | 尹小根 | Herbicide composition containing cyhalofopbutyl and bispyribacsodium |
| CN104381301A (en) * | 2014-10-31 | 2015-03-04 | 蒋君军 | Herbicide |
| CN104519740A (en) * | 2012-01-12 | 2015-04-15 | 陶氏益农公司 | Herbicidal compositions containing bentazon and ALS inhibitor and ACCase inhibitor |
| CN105309506A (en) * | 2015-12-03 | 2016-02-10 | 刘楚玲 | Environment-friendly herbicide and preparation method thereof |
-
2016
- 2016-10-28 CN CN201610967138.8A patent/CN107996586A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379289A (en) * | 2011-12-19 | 2012-03-21 | 尹小根 | Herbicide composition containing cyhalofopbutyl and bispyribacsodium |
| CN104519740A (en) * | 2012-01-12 | 2015-04-15 | 陶氏益农公司 | Herbicidal compositions containing bentazon and ALS inhibitor and ACCase inhibitor |
| CN104381301A (en) * | 2014-10-31 | 2015-03-04 | 蒋君军 | Herbicide |
| CN105309506A (en) * | 2015-12-03 | 2016-02-10 | 刘楚玲 | Environment-friendly herbicide and preparation method thereof |
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