CN105494363B - A kind of Herbicidal combinations - Google Patents
A kind of Herbicidal combinations Download PDFInfo
- Publication number
- CN105494363B CN105494363B CN201410546400.2A CN201410546400A CN105494363B CN 105494363 B CN105494363 B CN 105494363B CN 201410546400 A CN201410546400 A CN 201410546400A CN 105494363 B CN105494363 B CN 105494363B
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- China
- Prior art keywords
- fluroxypyr
- herbicidal combinations
- topramezone
- monooctyl ester
- chlorine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of Herbicidal combinations more particularly to a kind of ternary built, applied to the Herbicidal combinations to Control Weeds in Maize Field in corn field.The present invention provides a kind of Herbicidal combinations, three kinds of active constituent topramezones, 2 first, 4 chlorine sodium and fluroxypyr, wherein topramezone, the ratio range of 2 first, 4 chlorine sodium and fluroxypyr or the different monooctyl ester of fluroxypyr by weight percentage are 1~10:1~100:1~100.The advantages of three kinds of component mechanisms are different in the present invention, and the medicament after compounding combines three kinds of single doses, have reached better herbicidal effect, compared to single agent using having apparent synergistic effect, reduce dosage, reduce cost and safer；It expands to herbicide controlling spectrum, in addition to excellent to grassy weed effect, having preferable control effect to pernicious broad leaved weed, sedge weed；The drug resistance because using single dose to generate can be slowed down simultaneously.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations more particularly to a kind of ternary built, applied to the use in corn field
With the Herbicidal combinations of Control Weeds in Maize Field.
Background technology
Most recent 20 years, the continuous development of herbicide kind have driven the constantly improve of Chemical Weeding in Maize Field technology, but
Traditional herbicide kind is still the main body that corn field herbicide uses.Currently, China's corn field herbicide kind only have atrazine,
First grass piperazine, alachlor, Acetochlor, isopropyl methoxalamine, propisochlor, rimsulfuron, nicosulfuron, trefanocide, 2,4-D etc. 10
Remaining kind.China corn field herbicide is badly in need of developing short residual effect kind and cauline leaf process agent, improve cornfield weeding flexibility and
Selectivity, on the basis of suitably introducing novel herbicide kind, exploitation emphatically is used for the herbicide mix preparation of corn field and carries
Height uses technology.
Topramezone English common name Topramezone, chemical name [3- (4,5- dihydro -3- isoxazolyls) -4- methyl
Sulphonyl -2- methylbenzenes] 5- hydroxyl -1- methyl-1 H- pyrazoles -4- bases) ketone, chemical structural formula is：
Topramezone is cauline leaf process inner-adsorption conduction-type herbicide after a kind of novel pyrazole quinoline ketone seedling, and the mechanism of action is suppression
4- medical midbodies of para (ortho)-hydroxybenzoic acetone acid esters dual oxide enzymes in plastoquinone biosynthesis processed（HPPD）, the conjunction of carotenoid is influenced indirectly
At under illumination condition, interfering synthesis and the function of chloroplaset, serious chlorosis albefaction, tissue necrosis, plant caused usually to exist
Death after processing 14 days.Since the vitellarium poisoning symptom of the oxidative degradation of chlorophyll, especially susceptible weeds overground part is most bright
It is aobvious.Susceptible weeds are stopped growing quickly by blade, root absorption, and the upward and downward Bidirectional Conduction in plant.It is miscellaneous
There is albefaction poisoning symptom after administration in careless aerial part in 2-5 days, the poisoning symptom of growing point, blade and vein is most apparent,
The tissue of albefaction is gradually downright bad, and entire plant is withered, according to weather environment difference, needs 10-15 days or so.Topramezone pair
Corn is very safe, is compared with sensitive weeds, and the drug resistance of corn is absorbed and passed since it is low to the sensitivity of target enzymes
The amount of leading is few, and accretion rate is fast.
Topramezone can effectively kill annual gramineae and broad leaved weed and sedge weed, such as lady's-grass, barnyard grass, dog tail
Grass, Brachiaria Griseb, eleusine indica, wild millet, hill Chinese pennisetum, sandbur, difformed galingale herb, cyperus iria, amaranth, knotweed, field bindweed, thorn
Dish, lamb's-quarters, Siberian cocklebur, black nightshade, piemarker, datura, weasel hemp nettle, german chamomile, artemisiifolia, wild mustard, cicely, thorn bud fruit, bristle thorn bud chrysanthemum,
Annual mercury, South America beggarweed, tassel flower, root of bidentate achyranthes chrysanthemum, false acid pulp, dayflower, Brittle Falsepimpernel Herb, Mazus japonicus.
Fluroxypyr（Fluroxypyr）Also known as fluorine grass is fixed, fluroxypramide, makes that it is grand, shield is grand, chemical formula is 4- ammonia
Fluoro- pyridine -2- the fluoroacetic acid of two chloro- 6- of base -3.5-, structural formula are：
Fluroxypyr, which is The Dow Agrosciences, LLC. (Dow AgroSciences Company) development and production, to be had
Machine heterocyclic selectivity inner sucting conduction type herbicide after seedling, it is each suitable for preventing and kill off the gramineous crops Tanaka such as wheat, barley, corn
Kind broad leaved weed.Fluroxypyr can prevent and kill off clearvers, volume stem smartweed, purslane, black nightshade, chickweed, common vetch, field bindweed, weasel valve
Flower, pale persicaria, willow leaf thorn smartweed, Amaranthus retroflexus, dayflower, elscholtiza, penny cress, vetch, Descurainia sophia and small japanese bearbind etc. are various wealthy
Leaf weeds, it is invalid to grass family and sedge weed.Fluroxypyr keeps it grand crop safety in drug resistance crop body
Toxicity is lost in combination with conjugates.Degradable in the soil, half-life period is shorter, will not cause poisoning to succession crop.
Dimethyl tetrachloride or derivatives thereof is phenoxy acetic acid class selectivity Uptake and translocation hormone like herbicide, Yi Weigen and leaf portion
It absorbs and conducts, the conducting tissue of dicotyledon can be destroyed, growth and development is made to be interfered, cauline leaf distorts, and basal part of stem is swollen
Big thicker or cracking, swelling, it is mildew and rot and dead to split.Applicable rice can prevent and kill off most of sedge weed and broad leaved weed.2 first, 4 chlorine
Derivative is 2 first, 4 chlorine isopropyl acid, Thistrol, Thistrol butyl ester, the different monooctyl ester of 2 first, 4 chlorine, 2 first, 4 chloroethene thioesters, 2 first 4
Chlorine thioethyl ester, 2 first, 4 chlorine sodium salt, 2 first, 4 chlorine sylvite, 2 first, 4 chlorine isopropyl amine salt.
The method of most-often used increase activity of weeding and the herbicidal spectrum for widening existing herbicide is that have two or more
There are the herbicidal active compounds of different activity of weeding to mix.If mixing two or more herbicidal active compounds, may show
The herbicide action outstanding than individual herbicide application.When the effect of the mixture of two or more ingredients is more than each ingredient
It is expected that when effort levels, we term it " synergistic effects ".However, the weeding mixing of described two or a variety of herbicidal active compounds
Synergistic effect present in object is only visible in some circumstances.Due to the difference of herbicidal performance, absorptivity, transfer, metabolism etc.
It is different, activity of weeding singly the applying less than each ingredient of most of mixtures." antagonism " indicates such situation i.e. two kind or more
Herbicide action singly the applying less than each ingredient of the mixture of kind herbicidal active compounds." addition " indicates such situation i.e. two
The herbicide action of the mixture of kind or a variety of herbicidal active compounds is identical as singly applying for each ingredient.
Invention content
The invention aims to solve above-mentioned technical problem, the present invention provides a kind of Herbicidal combinations, the compositions
By by topramezone, 2 first, 4 chlorine sodium and fluroxypyr carry out ternary built so that obtained composition prevent and kill off it is wealthy
Gain effect is achieved in the prevention of leaf weeds, grassy weed and sedge weed.
A kind of Herbicidal combinations, including
Three kinds of active constituent topramezones, 2 first, 4 chlorine sodium and fluroxypyr or the different monooctyl ester of fluroxypyr,
Wherein topramezone, dimethyl tetrachloride sodium and fluroxypyr or the different monooctyl ester weight proportion range of fluroxypyr
It is 1~10:1~100:1~100.
Further, the topramezone, 2 first, 4 chlorine sodium and fluroxypyr or the different monooctyl ester weight of fluroxypyr
Ratio range is 1~10:1~50:1~50.
Further, the topramezone, 2 first, 4 chlorine sodium and fluroxypyr or the different monooctyl ester weight of fluroxypyr
It is 1~10 to measure ratio range:1~20:1~20.
Further, topramezone, dimethyl tetrachloride sodium and fluroxypyr or the different monooctyl ester weight of fluroxypyr
Ratio range is 1~10:1~10:1~10.
Further, topramezone, 2 first, 4 chlorine sodium and fluroxypyr or the different monooctyl ester weight of fluroxypyr are matched
It is 1~5 than range:1~5:1~5.
A kind of Herbicidal combinations, including active constituent topramezone, 2 first, 4 chlorine sodium and fluroxypyr or chlorine fluorine pyrrole oxygen
2-ethyl hexyl ethanoate, filler and/or surfactant.
A kind of Herbicidal combinations, the active constituent topramezone, 2 first, 4 chlorine sodium and fluroxypyr or chlorine fluorine pyrrole oxygen
2-ethyl hexyl ethanoate quality sum accounts for the 5%-90% of Herbicidal combinations.
A kind of Herbicidal combinations, the active constituent topramezone, 2 first, 4 chlorine sodium and fluroxypyr or chlorine fluorine pyrrole oxygen
2-ethyl hexyl ethanoate quality sum accounts for the 10%-80% of Herbicidal combinations.
A kind of Herbicidal combinations, the active constituent topramezone, 2 first, 4 chlorine sodium and fluroxypyr or chlorine fluorine pyrrole oxygen
2-ethyl hexyl ethanoate quality sum accounts for the 20%-60% of Herbicidal combinations.
A kind of Herbicidal combinations, the active constituent topramezone, 2 first, 4 chlorine sodium and fluroxypyr or chlorine fluorine pyrrole oxygen
2-ethyl hexyl ethanoate quality sum accounts for the 30%-50% of Herbicidal combinations.
A kind of Herbicidal combinations, dosage form are wettable powder, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, outstanding breast
Agent, water dispersible granules, soluble granula, aqua, microcapsule suspension-suspendinagent agent, ultra low volume liquids.
A kind of Herbicidal combinations are answered preventing and kill off broad-leaved section weeds, sedge weed, the undesirable plant of grassy weed
With.
A kind of Herbicidal combinations are in preventing and kill off useful plant field broad-leaved section weeds, sedge weed, grassy weed
Using the useful plant is wheat, barley, rye, rice, corn, sugarcane, sorghum.
A method of the undesirable plant of control, including：（i）Before undesirable plant germination（Before bud）；（ii）
After undesirable plant germination（After bud）, or（iii）（i）With（ii）When, by the weeding group of herbicidally effective amount
Object is closed to be applied on the growth place or leaf or stem of undesirable plant.
Detailed description of the invention
The present invention provides a kind of Herbicidal combinations, and the composition is by by topramezone, 2 first, 4 chlorine sodium and chlorine fluorine pyrrole oxygen second
Acid or the different monooctyl ester of fluroxypyr carry out ternary built so that obtained composition to broad-leaved section weeds, sedge weed,
Grassy weed shows Herbicidal synergic effect, especially to amur foxtail category (Alopecurus spp.), knotgrass (Digitaria
Spp.), Echinochloa (Echinochloa spp.), Sprangletop (Leptochloa spp.), Panicum (Panicum spp.), Phalaris
Grass belongs to (Phalaris spp.), Poa L. (Poa spp.), setaria (Setaria spp.) and Cyperus
(Cyperus), abutilon (Abutilon spp.), Amaranthus (Amaranthus spp.), Chenopodium (Chenopodium spp.),
Stellaria (Stellaria spp.), Veronica (Veronica spp.), Eclipta prostrata category (Eclipta spp.), clearvers
（Galiumaprarine）Show the herbicidal activity of synergy.
The invention further relates to a kind of methods of the undesirable plant of control, including：（i）Before undesirable plant germination
（Before bud）；（ii）After undesirable plant germination（After bud）, or（iii）（i）With（ii）When, by the institute of herbicidally effective amount
The Herbicidal combinations stated are applied on the growth place or leaf or stem of undesirable plant
Herbicide topramezone, 2 first, 4 chlorine sodium, fluroxypyr or the different monooctyl ester of fluroxypyr can simultaneously or according to
Secondary application.Jointly or separately whether herbicide topramezone, 2 first, 4 chlorine sodium, fluroxypyr or the different monooctyl ester of fluroxypyr
It prepares and applies and applied in what order in the case of separate administration not important.
Surprisingly, Herbicidal combinations of the present invention to undesirable plant activity of weeding than by single compound weeding work
To get well desired by property.That is the synergy of topramezone, 2 first 4 chlorine sodium, fluroxypyr or the different monooctyl ester of fluroxypyr
Cause to improve the activity to undesirable plant with synergistic effect（Synergistic function）.Therefore, Herbicidal combinations of the invention
It can be based on one-component with lower rate of application uses and realizes and the comparable herbicidal effect of one-component.In addition, the present invention removes
Careless composition provides the activity of weeding before good bud and after bud.Moreover, the present invention Herbicidal combinations show it is good
Crop compatibility.
In the Herbicidal combinations of the present invention, topramezone, 2 first, 4 chlorine sodium and fluroxypyr or fluroxypyr are different
Monooctyl ester weight proportion range is 1~10:1~100:1~100, preferably 1~10:1~50:1~50,1~10:1~20:1~
20,1~10:1~10:1~10,1~5:1~5:1~5.Therefore, in the method and use of the present invention, topramezone, 2 first 4
Chlorine sodium and the different monooctyl ester of fluroxypyr or fluroxypyr are applied in these weight ratios.
The Herbicidal combinations of the present invention are suitble to a large amount of undesirable plants of prevention, including monocotyledon weed, especially one year
Raw weeds such as grassy weed, including Avena (Avena spp.), amur foxtail category (Alopecurus spp.), false bent grass
Belong to (Apera spp.), Brachiaria (Brachiaria spp.), Brome (Bromus spp.), knotgrass (Digitaria
Spp.), Lolium (Lolium spp.), Echinochloa (Echinochloa spp.), Sprangletop (Leptochloa spp.),
Genus fimbristylis (Fimbristylis spp.), Panicum (Panicum spp.), phalaris arundinacea (Phalaris spp.), Poa L.
(Poa spp.), setaria (Setaria spp.)；And Agropyron (Agropyron), Bermuda grass in perennial kind
Belong to (Cynodon), cogon (Imperata) and sorghum.
The Herbicidal combinations of the present invention are also suitable for preventing a large amount of broadleaf weeds, especially broad leaved weed, including abutilon
(Abutilon spp.), Amaranthus (Amaranthus spp.), Chenopodium (Chenopodium spp.), crowndaisy chrysanthemum category
(Chrysanthemum spp.), galium (Galium spp.), Ipomoea (Ipomoea spp.), Kochia (Kochia
Spp.), lamium (Lamium spp.), Matricaria (Matricaria spp.), ipomoea (Pharbitis spp.), knotweed
Belong to (Polygonum spp.), chrysanthemum harvest spp (Sida spp.), sinapsis alba category (Sinapis spp.), Solanum (Solanum
Spp.), Stellaria (Stellaria spp.), Veronica (Veronica spp.), Eclipta prostrata category (Eclipta spp.), field
Cyanines category (Sesbania spp.), Aeschynomene spp. and Viola (Viola spp.), Xanthium (Xanthium
Spp.) annual grassy weeds and japanese bearbind genus (Convolvulus), Cirsium (Cirsium), Rumex (Rumex) and the artemisia such as
(Artemisia) perennial weeds such as.
The Herbicidal combinations of the present invention are also suitable for a large amount of annual and perennial sedge weeds of prevention, including Cyperus
（cyperusbrevifolius H.）, yellow grain husk nutgrass flatsedge（CyperusmicroirisSteud）, cyperus iria
（Cyperusiria L.）Deng.
The Herbicidal combinations of the present invention are suitble to prevent and kill off undesirable plant in useful plants.Herbicidal combinations of the present invention are logical
Often it is suitble to prevent and kill off undesirable plant growth in following crop：Wheat, barley, rye, rice, corn, sugarcane, sorghum crop.
The Herbicidal combinations of the present invention can be applied in a usual manner.Including spraying, atomization, dusting, broadcasts sowing or pour.Using
Type is under any circumstance it is ensured that inventive compound obtains best distribution.
The Herbicidal combinations of the present invention can be before undesirable plant germination（Before bud）, among or in undesirable plant
After object germination（After bud）Using.When by the composition of the present invention in crop, they can be after sowing and farming
It is applied before or after object emergence.The Herbicidal combinations of the present invention can also be applied before crop seeding.
Under any circumstance, topramezone, 2 first, 4 chlorine sodium and fluroxypyr or the different monooctyl ester of fluroxypyr can be with
Simultaneously or sequentially apply.
Rate of application can change in wide boundary, and depending on soil property, method of administration（Before bud or after bud；Seed dressing；
It is applied in seed furrow；No-tillage application etc.）, the plant of effect, the weeds that need to be controlled, weather conditions, and by method of administration branch
The other factors matched, specific active ingredient combinations, administration time and target.In practicing, about 0.001kg/ is provided
The rate of application of ha-1.00kg/ha, the preferably active component of 0.01 kg/ha-0.075 kg/ha are suitable.
The Herbicidal combinations of the present invention can jointly or respectively be converted into conventional formulation, for example, wettable powder, missible oil,
Suspending agent, microcapsules, microemulsion, aqueous emulsion, suspension emulsion, water dispersible granules, soluble granula, aqua, microcapsule suspension-suspension
Agent, ultra low volume liquids.The preparation further includes filler and/or surfactant.
Suitable liquid filler has：Aromatic compounds, such as dimethylbenzene, toluene or alkylnaphthalene；Chlorinated aromatic hydrocarbons and chloro
Aliphatic hydrocarbon, such as chlorobenzene, vinyl chloride or dichloromethane；Aliphatic hydrocarbon, such as hexamethylene or paraffin, such as mineral oil fractions, mineral oil
And vegetable oil；Alcohols, such as butanol or ethylene glycol and its ether and ester；Ketone, such as acetone, methyl ethyl ketone, methyl-isobutyl
Ketone or cyclohexanone；Intensive polar solvent, such as dimethylformamide and dimethyl sulfoxide (DMSO), Yi Jishui.
Suitable solid-filling agent is：Such as the natural minerals of ammonium salt and crushing, such as it is kaolin, clay, talcum, white
Chalk, quartz, attapulgite, montmorillonite or diatomite；With the synthetic mineral of crushing, such as high dispersive silica, aluminium oxide and
Silicate；Solid carrier suitable for granule is：Such as the natural crystal for crushing and being classified, such as it is calcite, marble, floating
Synthesis particle and organic material (such as sawdust, coconut husk, the corncob of stone, sepiolite and dolomite and inorganic and organic powder
Axis and tobacco rods) particle.
Suitable surfactant is：It is alkylnaphthalene sulfonate, double（Alkyl）Naphthalenesulfonate formaldehyde condensation compound, naphthalenesulfonateformaldehyde formaldehyde
Condensation product, alkylphenol-polyethenoxy based phosphates, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, alkyl phenol polyoxy second
Alkene ether phosphate, alkyl phenol polyoxyethylene ether, castor oil ethylene oxide adduct, ethylene oxide-propylene oxide block copolymer,
APES formaldehyde condensation product, octylphenol polyethylene oxyethylene group ether sulfate and methylcellulose.
Suitable thickener, such as xanthans.
Suitable antifreezing agent such as ethylene glycol, propylene glycol, urea or glycerine.
Suitable adhesive such as polyvinylpyrrolidone, polyvinyl alcohol or tylose.
In the Herbicidal combinations of the present invention, active constituent topramezone, 2 first, 4 chlorine sodium and fluroxypyr or chlorine fluorine pyrrole
The different monooctyl ester quality sum of fluoroacetic acid accounts for 5%-90%, the preferably 10%-80% of Herbicidal combinations, further preferably 20%-60%, more preferable 30%-
50%。
The present invention has the advantages that compared with prior art：
The present invention relates to a kind of containing topramezone, dimethyl tetrachloride and fluroxypyr or the different monooctyl ester of fluroxypyr
Ternary built herbicidal composition, wherein three kinds of component mechanisms are different, the medicament after compounding combines the excellent of three kinds of single doses
Point has reached better herbicidal effect, and used with binary combination has apparent synergistic effect compared to single agent, reduces medication
Amount reduces cost and safer；Herbicidal spectrum is widened, in addition to excellent to grassy weed effect, to pernicious broad leaved weed, Sha
Careless section weeds have preferable control effect；The drug resistance because using single dose to generate can be slowed down simultaneously.
Specific implementation mode
Example of formulations
Embodiment 1：Wettable powder
Topramezone 1%
2 first, 4 chlorine sodium 5%
Fluroxypyr 10%
Sodium butylnaphthalenesulfonate (wetting agent) 5%
Sodium metnylene bis-naphthalene sulfonate (dispersant) 5%
White carbon (filler) 10%
Kaolin (filler) complements to 100%
It is uniformly mixed, then obtains after air-flow crushing wettable by entering in mixer after above-mentioned formula in proportion coarse crushing
Property pulvis.
Embodiment 2：Suspension emulsion
Topramezone 5%
2 first, 4 chlorine sodium 10%
The different monooctyl ester of fluroxypyr 30%
Methyl oleate 10%
Ethoxylated castor oil (emulsifier) 5%
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt (wetting agent) 5%
APES formaldehyde condensation products sulfat (dispersant) 5%
Aluminium-magnesium silicate (thickener) 1%
Organosilicon (antifoaming agent) 0.1%
Glycerine (antifreezing agent) 5%
Ionized water (filler) complements to 100%
The different monooctyl ester of fluroxypyr is dissolved in methyl oleate, ethoxylated castor oil is added, obtains chlorine fluorine pyrrole oxygen
The oil phase of acetic acid；
The each components such as 2 first, 4 chlorine sodium, topramezone, wetting agent, dispersant are mixed in proportion, sand mill is added
Middle grinding prepares the suspended phase of 2 first, 4 chlorine sodium+topramezone；
The oil phase of the different monooctyl ester of containing chlorine fluorine pyrrole fluoroacetic acid is added in the suspended phase containing 2 first, 4 chlorine sodium+topramezone, is hanged
Floating emulsion.
Embodiment 3：Water-dispersible granules
Topramezone 5%
2 first, 4 chlorine sodium 50%
Fluroxypyr 20%
Lauryl sodium sulfate (wetting agent) 4%
Polycarboxylate (dispersant) 4%
Sodium chloride (disintegrant) 1%
Polyethylene glycol (binder) 1%
Kaolin (filler) complements to 100%
By above-mentioned formula, dry pulverization process, granulation, drying, screening prepare obtained water-dispersible property granula in proportion.
4 aqueous emulsion of embodiment
Topramezone 5%
2 first, 4 chlorine sodium 5%
The different monooctyl ester of fluroxypyr 20%
N-Methyl pyrrolidone (solvent) 10%
Castor oil polyoxyethylene ether (emulsifier) 5%
Neopelex (emulsifier) 5%
Deionized water (filler) complements to 100%
Active compound, solvent, emulsifier in above-mentioned formula are dissolved into homogeneous oil phase；Under high velocity agitation, by oil phase and water phase
It is mixed to prepare aqueous emulsion.
Embodiment 5：Water-soluble granule
Topramezone 1%
2 first, 4 chlorine sodium 20%
Fluroxypyr 5%
Sodium butylnaphthalenesulfonate (wetting agent) 4%
Sodium lignin sulfonate naphthalenesulfonic acid-formaldehyde condensate (dispersant) 5%
Sucrose（Filler）Complement to 100%
By above-mentioned formula, dry pulverization process, granulation, drying, screening prepare obtained water-soluble granule in proportion.
6 missible oil of embodiment
Topramezone 1%
2 first, 4 chlorine sodium 5%
Fluroxypyr 20%
Ethoxylated castor oil（Emulsifier） 5%
Calcium dodecyl benzene sulfonate（Emulsifier） 3%
Dimethyl sulfoxide (DMSO)（Solvent）Complement to 100%
Mentioned component is proportionally prepared, uniform phase is uniformly mixing to obtain.
Embodiment 7
Topramezone 20%
2 first, 4 chlorine sodium 55%
Fluroxypyr 25%
Above-mentioned active constituent is mixed in proportion.
Embodiment 8
Topramezone 20%
2 first, 4 chlorine sodium 55%
The different monooctyl ester of fluroxypyr 25%
Above-mentioned active constituent is mixed in proportion.
Above example proportioning is weight per distribution ratio.
Biological test example
When the effect of active compound combinations is more than the summation of the effect when each reactive compound is administered alone, deposit
In synergistic function.So-called " Colby formula " (ginseng can be used in the predictive role of the specific combination of three kinds of reactive compounds
See S.R. Colby, " Calculating Synergistic and Antagonistic Responses of
Herbicide Combinations ", Weeds 1967,15,20-22) and it calculates as follows:If
A is the survival rate of weeds when using the reactive compound A that dosage is mg/ha or a concentration of mppm；It is expressed as
Account for the percentage of untreated control；
B is the survival rate of weeds when using the reactive compound B that dosage is ng/ha or a concentration of nppm;It indicates
To account for the percentage of untreated control；
C is the survival rate of weeds when using the reactive compound C that dosage is hg/ha or a concentration of hppm;It is expressed as
Account for the percentage of untreated control；
It is m that E0, which is when using dosage, when n, reactive compound A, B and the C of h g/ha or a concentration of m, n, hppm
Weeds theoretical survival rate,
E0=A×B×C/ (100×（N-1)）
N is 3；
If the practical survival rate of the weeds of actual observation（E）Less than the theoretical survival rate of weeds（E0）, then the combination
The super adduction of object, that is, have synergistic effect.
Inventor is by a large amount of screening test, to topramezone, 2 first, 4 chlorine sodium and fluroxypyr or chlorine fluorine pyrrole oxygen
The different ratio of 2-ethyl hexyl ethanoate has carried out experiment a large amount of and preventive effect analysis, finds in certain ratio range, gained
There is the Herbicidal combinations arrived synergistic effect to be added with following bioassay example rather than just the simple addition of three kinds of medicaments
With explanation.
To the controlling experiment of corn weeds in field：
Test method：
Prevent and kill off the experiment of corn field broad leaved weeds, grassy weed and sedge weed
This test site is selected in the new town corn field in Kunshan City, Jiangsu Province and carries out, in the experiment topramezone set 1,5,10g/ha
Totally 3 dosage processing, fluroxypyr or the different monooctyl ester of fluroxypyr set 1,50,100g/ha totally 3 dosage processing, 2 first
4 chlorine sodium set 1,50,100g/ha totally 3 dosage processing；The mixed of 2 first, 4 chlorine sodium+fluroxypyr sets 9 processing altogether；2 first 4
The mixed of chlorine sodium+different monooctyl ester of fluroxypyr sets 9 processing altogether；The mixed of topramezone+fluroxypyr is set altogether at 9
Reason；The mixed of the different monooctyl ester of topramezone+fluroxypyr sets 9 processing altogether；4 the mixed of chlorine sodium of+2 first of topramezone sets 9 altogether
A processing；The mixed of 4 chlorine sodium of+2 first of topramezone+fluroxypyr sets 27 processing altogether, is repeated 4 times；+ 2 first 4 of topramezone
The mixed of chlorine sodium+different monooctyl ester of fluroxypyr sets 27 processing altogether, is repeated 4 times；
And set clear water control treatment.This experiment carries out cauline leaf spraying in 2 ~ 4 leaf phase of corn, weed size in the 3-4 leaf phases.
During experiment, field main weeds have barnyard grass（Echinochloacrusgalli (L.) Beauv.）, moleplant seed
（Leptochloachinensis(L.) Nees）, difformed galingale herb（Cyperusdifformis L.）, firefly Lin
（ScirpusjuncoidesRoxb.）, flat stalk Fischer grass（Scirpusplaniculmis Fr.Schmidt）, wild arrowhead
（Sagittariatrifolia var. sinensis）, rhizoma alismatis（Alismaplantago-aquatica Linn.）, Monochoria vaginalis
（Monochoriapauciflora（Bl.）Kunth.）, bog pondweed（Potamogetonfranchetii）.
The investigation of weeds survival rate after dispenser 15 days：
By above table as it can be seen that the present invention can be used for preventing corn field broad-leaved to the composition of Control Weeds in Maize Field
Weeds, grassy weed and sedge weed.The Herbicidal combinations of the present invention are since three kinds of component mechanisms are different, compounding
The advantages of combining three kinds of single doses afterwards, has reached better herbicidal effect, compared to single agent using with apparent synergistic effect；Drop
Low dosage reduces peasant's drug cost and safer；Herbicide controlling spectrum is expanded, it is excellent to grassy weed effect to removing
Outside, also there is preferable control effect to pernicious broad leaved weed, sedge weed.
Claims (14)
1. a kind of Herbicidal combinations, it is characterised in that：Including
Three kinds of active constituent topramezones, 2 first, 4 chlorine sodium and fluroxypyr or the different monooctyl ester of fluroxypyr,
Wherein topramezone, 2 first, 4 chlorine sodium and fluroxypyr or the different monooctyl ester weight proportion range of fluroxypyr be 1~
10:1~100:1~100.
2. Herbicidal combinations according to claim 1, it is characterised in that：Topramezone, 2 first, 4 chlorine sodium and chlorine fluorine pyrrole oxygen second
Acid or the different monooctyl ester weight proportion range of fluroxypyr are 1~10:1~50:1~50.
3. Herbicidal combinations according to claim 1, it is characterised in that：Topramezone, 2 first, 4 chlorine sodium and chlorine fluorine pyrrole oxygen second
Acid or the different monooctyl ester weight proportion range of fluroxypyr are 1~10:1~20:1~20.
4. Herbicidal combinations according to claim 1, it is characterised in that：Topramezone, dimethyl tetrachloride and chlorine fluorine pyrrole oxygen second
Acid or the different monooctyl ester weight proportion range of fluroxypyr are 1~10:1~10:1~10.
5. Herbicidal combinations according to claim 1, it is characterised in that：Topramezone, 2 first, 4 chlorine sodium and chlorine fluorine pyrrole oxygen second
Acid or the different monooctyl ester weight proportion range of fluroxypyr are 1~5:1~5:1~5.
6. Herbicidal combinations according to claim 1, including active constituent topramezone, 2 first, 4 chlorine sodium and chlorine fluorine pyrrole oxygen second
Acid or the different monooctyl ester of fluroxypyr, filler and/or surfactant.
7. Herbicidal combinations according to claim 1, it is characterised in that：The active constituent topramezone, 2 first, 4 chlorine sodium
The 5%-90% of Herbicidal combinations is accounted for fluroxypyr or the different monooctyl ester quality sum of fluroxypyr.
8. Herbicidal combinations according to claim 1, it is characterised in that：The active constituent topramezone, 2 first, 4 chlorine sodium
The 10%-80% of Herbicidal combinations is accounted for fluroxypyr or the different monooctyl ester quality sum of fluroxypyr.
9. Herbicidal combinations according to claim 1, it is characterised in that：The active constituent topramezone, 2 first, 4 chlorine sodium
The 20%-60% of Herbicidal combinations is accounted for fluroxypyr or the different monooctyl ester quality sum of fluroxypyr.
10. Herbicidal combinations according to claim 1, it is characterised in that：The active constituent topramezone, 2 first, 4 chlorine sodium
The 30%-50% of Herbicidal combinations is accounted for fluroxypyr or the different monooctyl ester quality sum of fluroxypyr.
11. Herbicidal combinations described in claim 1, dosage form be wettable powder, missible oil, suspending agent, microcapsules, microemulsion,
Aqueous emulsion, suspension emulsion, water dispersible granules, soluble granula, aqua, microcapsule suspension-suspendinagent agent, ultra low volume liquids.
12. Herbicidal combinations described in claim 1 answering in preventing and kill off broad-leaved section weeds, sedge weed, grassy weed
With.
13. Herbicidal combinations described in claim 1 are to prevent and kill off corn field broad-leaved section weeds, sedge weed, grass family miscellaneous
Application in grass.
14. a kind of method of the undesirable plant of control, it is characterised in that：Including：（i）Before undesirable plant germination
（Before bud）；（ii）After undesirable plant germination（After bud）, or（iii）（i）With（ii）When, by the power of herbicidally effective amount
Profit requires 1 Herbicidal combinations to be applied on the growth place or leaf or stem of undesirable plant.
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| CN103300008A (en) * | 2012-03-09 | 2013-09-18 | 陕西韦尔奇作物保护有限公司 | Synergistic weeding composition containing fluroxypyr |
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| CN102017963A (en) * | 2010-12-26 | 2011-04-20 | 陕西上格之路生物科学有限公司 | Herbicide composite containing topramezone, fluthiacet and sodium methoxone |
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