CN105557708B - A kind of Herbicidal combinations - Google Patents
A kind of Herbicidal combinations Download PDFInfo
- Publication number
- CN105557708B CN105557708B CN201410548642.5A CN201410548642A CN105557708B CN 105557708 B CN105557708 B CN 105557708B CN 201410548642 A CN201410548642 A CN 201410548642A CN 105557708 B CN105557708 B CN 105557708B
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- Prior art keywords
- herbicidal combinations
- bentazone
- topramezone
- chlorine sodium
- herbicidal
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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 Herbicidal combinations for Control Weeds in Maize Field.The present invention provides a kind of Herbicidal combinations, and three kinds of active ingredient topramezones, 2 first, 4 chlorine sodium and bentazone, wherein topramezone, 2 first, 4 chlorine sodium and the ratio range of bentazone 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 more preferable herbicidal effect, and relative to single dose using having an obvious synergistic function, reduction dosage, reduces cost and safer；Expand to herbicide controlling spectrum, in addition to excellent to grassy weed effect, having preferable prevention effect to pernicious broad leaved weed, sedge weed；The resistance to the action of a drug because being produced using single dose can be slowed down at the same time.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations, more particularly to a kind of Herbicidal combination for Control Weeds in Maize Field
Thing.
Background technology
In planting industry, prevention suppresses plant growth and causes the weeds of yield reduction and cover crop to be critically important.
In order to reduce due to loss caused by the weeds in arable farming, such as growing difference or crop yield reduces, and has now been developed
The weeds can effectively be prevented and to the herbicidal active component of crop safety.Up to the present, there is the weeding largely developed
Agent is registered and for preventing the weeds of some crops.Herbicide for preventing the weeds in specific arable farming should have foot
Enough high activity of weeding and broad herbicidal spectrum, and response environment and crop safe enough.However, not every herbicide
Above-mentioned requirements can be fully met.
The method of most-often used increase activity of weeding and the herbicidal spectrum for widening existing herbicide is that have two or more
The herbicidal active compounds for having different activity of weeding mix.If mixing two or more herbicidal active compounds, may show
The herbicide action outstanding than single herbicide application.When the effect of the mixture of two or more components is more than each component
It is expected that during effort levels, we term it " synergistic effect ".However, the weeding mixing of described two or a variety of herbicidal active compounds
Synergistic effect present in thing 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 component of most of mixtures.Situation i.e. two kind or more as " antagonism " expression
Herbicide action singly the applying less than each component of the mixture of kind herbicidal active compounds.Situation i.e. two as " addition " expression
The herbicide action of the mixture of kind or a variety of herbicidal active compounds is identical with singly applying for each component.
Topramezone English common name Topramezone, chemical name [3- (4,5- dihydro -3- isoxazolyls) -4- methyl
Sulphonyl -2- methylbenzenes] 5- hydroxyl -1- methyl isophthalic acid H- pyrazoles -4- bases) ketone, its chemical structural formula is：
Topramezone is a kind of novel pyrazole quinoline ketone after seedling cauline leaf process inner-adsorption conduction-type herbicide, 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
Into under illumination condition, disturbing synthesis and the function of chloroplaset, cause serious chlorosis albefaction, necrosis, plant usually exists
It is dead after handling 14 days.Since the oxidative degradation of chlorophyll, the vitellarium poisoning symptom of particularly susceptible weeds overground part are 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 obvious,
The tissue of albefaction is gradually downright bad, and whole plant is withered, according to weather environment difference, it is necessary to 10-15 days or so.Topramezone pair
Corn is very safe, is compared with sensitive weeds, and the drug resistance of corn is due to that its sensitivity to target enzymes is low, absorbs and passes
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.
Dimethyl tetrachloride or derivatives thereof is phenoxy acetic acid class selectivity Uptake and translocation hormone like herbicide, Yi Weigen and leaf portion
Absorb and conduct, the conducting tissue of dicotyledon can be destroyed, growth and development is 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.
Bentazone（Bentazone）, chemical name is：3- isopropyls-(1 H)-benzo -2,1,3- thiadiazine -4- ketone -2,
2- dioxide, its molecular structural formula are：
Bentazone is a kind of contact killing type, selective herbicide after seedling, and seedling stage processing, is worked by blade contact.Drought
Field in use, be transmitted in chloroplaset by blade infiltration and suppress photosynthesis, paddy field in use, can also be absorbed by root system,
It is transmitted to cauline leaf, hinders weeds photosynthesis and water metabolism, makes physiological dysfunction and dead.Bentazone is mainly used for preventing and kill off double
Leaf weeds, paddy field nutgrass flatsedge and other single leaf weeds, therefore be good herbicides for use in paddy.It can also be used for wheat class, soybean, cotton
The dry crop weeding such as flower, peanut, such as Monochoria vaginalis, needle spikesedge herb, convexutricle sedge herb, Herba Cyperi Glomerati, clearvers, knotweed be careless, flat sugarcane bar grass, wild water chestnut
Shepherd's purse, amaranth, lamb's-quarters, Drilgrass etc..
At present, the patent of Application No. CN 201110347624.7 discloses a kind of " herbicide in its claim 1
Composition, including major ingredient topramezone, it is characterised in that：Further include secondary material, the secondary material is atrazine, fluroxypyr,
Bentazone, Dicamba, nicosulfuron, mesotrione, 2,4 dichloro benzene ethoxyacetic acid, 2,4 dichloro benzene ethoxyacetic acid butyl ester,
The different monooctyl ester of 2,4 dichloro benzene ethoxyacetic acid, Garagard, 2 first, 4 chlorine sodium salt, formamido group Sulfometuron Methyl, one kind in Acetochlor or several
The combination of kind." although which includes the combination of 4 chlorine of topramezone, bentazone and 2 first, the patent specification
In not any embodiment and experimental data show effect of the combination on corresponding weeds are prevented and kill off, also, we
Know, whether the preventive effect of medicament is that gain can not be gone to infer by convention after compounding, it is necessary to proves it by testing
Whether it is gain.In addition, whether we can not also directly obtain or be inferred to the combination from the patent specification
It is gain effect on corresponding weeds are prevented and kill off.
Therefore, the present invention is intended to provide a kind of topramezone, the compound drug of 2 first, 4 chlorine sodium and bentazone preventing and kill off field
Between the technical solution of grassy weed, broad leaved weeds and gain effect caused by sedge weed do not taken off by the patent
Dew.
The content of the invention
The invention aims to solve above-mentioned technical problem, the present invention provides a kind of Herbicidal combinations, said composition
By the way that topramezone, 2 first, 4 chlorine sodium and bentazone are carried out ternary built so that obtained new compositions are to prevent and kill off broad-leaved miscellaneous
Gain effect is achieved in the prevention of grass, grassy weed and sedge weed.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of Herbicidal combinations, including
Three kinds of active ingredient topramezones, 2 first, 4 chlorine sodium and bentazone,
Wherein topramezone, 2 first, 4 chlorine sodium and bentazone weight proportion scope are 1~10:1~100:1~100.
Further, the topramezone, 2 first, 4 chlorine sodium and bentazone weight proportion scope are 1~10:1~50:1~
50。
Further, the topramezone, 2 first, 4 chlorine sodium and bentazone weight proportion scope are 1~10:1~20:1~
20。
Further, topramezone, 2 first, 4 chlorine sodium and bentazone weight proportion scope are 1~10:1~10:1~10.
Further, topramezone, 2 first, 4 chlorine sodium and bentazone weight proportion scope are 1~5:1~5:1~5.
A kind of Herbicidal combinations, include active ingredient topramezone, 2 first, 4 chlorine sodium and bentazone, filler and/or surface
Activating agent.
A kind of Herbicidal combinations, the active ingredient topramezone, 2 first, 4 chlorine sodium and bentazone quality sum account for weeding group
The 5%-90% of compound.
A kind of Herbicidal combinations, the active ingredient topramezone, 2 first, 4 chlorine sodium and bentazone quality sum account for weeding group
The 10%-80% of compound.
A kind of Herbicidal combinations, the active ingredient topramezone, 2 first, 4 chlorine sodium and bentazone quality sum account for weeding group
The 20%-60% of compound.
A kind of Herbicidal combinations, the active ingredient topramezone, 2 first, 4 chlorine sodium and bentazone quality sum account for weeding group
The 30%-50% of compound.
A kind of Herbicidal combinations, formulation 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 prevent and kill off broad-leaved section weeds, sedge weed, the undesirable plant of grassy weed should
With.
A kind of Herbicidal combinations are in useful plant field broad-leaved section weeds, sedge weed, grassy weed is prevented and kill off
Using the useful plant is wheat, barley, rye, rice, corn, sugarcane, sorghum, soybean, peanut, sunflower, sugar sweet tea
Dish, potato, cotton, rape.
A kind of method for controlling undesirable plant, including：（i）Before undesirable plant germination（Before bud）；
（ii）After undesirable plant germination（After bud）, or（iii）（i）With（ii）When, by the described of herbicidally effective amount
Herbicidal combinations are 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 said composition is by the way that topramezone, 2 first, 4 chlorine sodium and bentazone are carried out
Ternary built so that obtained composition shows that Herbicidal synergic is made to broad-leaved section weeds, sedge weed, grassy weed
With particularly to amur foxtail category (Alopecurus spp.), knotgrass (Digitaria spp.), Echinochloa (Echinochloa
Spp.), Sprangletop (Leptochloa spp.), Panicum (Panicum spp.), phalaris arundinacea (Phalaris spp.), precocity
Standing grain category (Poa spp.), setaria (Setaria spp.) and Cyperus (Cyperus), abutilon (Abutilon
Spp.), Amaranthus (Amaranthus spp.), Chenopodium (Chenopodium spp.), Stellaria (Stellaria spp.), mother-in-law
Procumbent speedwell category (Veronica spp.), Eclipta prostrata category (Eclipta spp.), clearvers（Galium aprarine）Show synergy
Herbicidal activity.
The invention further relates to a kind of method for controlling undesirable plant, including：（i）Undesirable plant germination it
Before（Before bud）；（ii）After undesirable plant germination（After bud）, or（iii）（i）With（ii）When, weeding is effective
The Herbicidal combinations of amount are applied on the growth place or leaf or stem of undesirable plant
Herbicide topramezone, 2 first, 4 chlorine sodium, bentazone can be applied simultaneously or sequentially.Herbicide topramezone, 2 first 4
Whether chlorine sodium, bentazone jointly or separately prepare and apply and administration does not weigh in what order in the case of separate administration
Will.
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, bentazone causes to improve to being not intended to cooperative effect
Plant activity（Synergistic function）.Therefore, Herbicidal combinations of the invention can be based on one-component with lower administration
Rate uses and realizes the herbicidal effect suitable with one-component.In addition, Herbicidal combinations of the present invention provide before good bud and
Activity of weeding after bud.Moreover, the Herbicidal combinations of the present invention show good crop compatibility.
In the Herbicidal combinations of the present invention, topramezone, 2 first, 4 chlorine sodium and bentazone weight proportion scope are 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 bentazone are applied in these weight ratios
With.
The Herbicidal combinations of the present invention are adapted 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
The annual grassy weeds such as spp.), and japanese bearbind genus (Convolvulus), Cirsium (Cirsium), Rumex (Rumex) and artemisia
(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
（cyperus brevifolius H.）, yellow grain husk nutgrass flatsedge（Cyperus microiris Steud）, cyperus iria（Cyperus
iria L.）Deng.
The Herbicidal combinations of the present invention are adapted to prevent and kill off undesirable plant in useful plants.Herbicidal combinations of the present invention lead to
Often it is adapted to prevent and kill off undesirable plant growth in following crop：Cereal such as wheat (Triticum aestivum), corn
（Zea mays）, sorghum, rice such as rice（Oryza sativa）;Sugarcane；Beans（Legumes）Such as soybean（Glycine
max.）；Peanut（Arachis hypogaea）;Cruciferae such as rape（Brassicanapus）;Other broad leaf crops, example
Such as include sunflower, cotton, flax, linseed, sugar beet, potato and tomato.
The Herbicidal combinations of the present invention are particluarly suitable for wheat, barley, rye, rice, corn, sugarcane, sorghum, soybean, flower
The growth of undesirable plant is prevented and kill off in life, sunflower, sugar beet, potato, cotton rape.
The Herbicidal combinations of the present invention are particularly suitable for being applied to wheat, barley, rice, corn, sorghum, sugarcane, soybean, rape
In.
The Herbicidal combinations of the present invention can be applied in a usual manner.Including spraying, being atomized, dusting, broadcast sowing or pour.Using
Type is under any circumstance it is ensured that inventive compound obtains optimal distribution.
The Herbicidal combinations of the present invention can be before undesirable plant germination（Before bud）, among or in undesirable plant
After thing germination（After bud）Using.When the composition of the present invention is used in crop, they can be after sowing and farming
Applied before or after thing 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 bentazone can be applied simultaneously or sequentially.
Rate of application can change in wide boundary, and depending on soil property, application process（Before bud or after bud；Seed dressing；
It is applied in seed furrow；No-tillage administration etc.）, the plant of effect, the weeds that need to be controlled, weather conditions, and by application process branch
The other factors matched somebody with somebody, specific active ingredient combinations, time of application and target.In practicing, there is provided about 0.001kg/
Ha-1.00kg/ha, the rate of application of the preferably active component of 0.01 kg/ha-0.075 kg/ha is 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 ammonium salt and the natural minerals that crush, 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
Stone, sepiolite and dolomite, and the synthesis particle of inorganic and organic powder, and organic material (such as sawdust, coconut husk, corncob
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-polyethenoxy base ether formaldehyde condensation products sulfate, alkyl phenol polyoxy second
Alkene ether phosphate, alkylphenol 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, propane diols, urea or glycerine.
Suitable adhesive such as polyvinylpyrrolidone, polyvinyl alcohol or tylose.
In the Herbicidal combinations of the present invention, active ingredient topramezone, 2 first, 4 chlorine sodium and bentazone quality sum account for weeding
The 5%-90% of composition, preferably 10%-80%, further preferably 20%-60%, more preferably 30%-50%.
The present invention has the advantages that compared with prior art：
The present invention relates to a kind of ternary built herbicidal composition containing topramezone, 2 first, 4 chlorine sodium and bentazone, wherein
The advantages of three kinds of component mechanisms are different, and the medicament after compounding combines three kinds of single doses, have reached more preferable herbicidal effect, phase
For single dose and binary combination using having an obvious synergistic function, reduction dosage, reduces cost and safer；Open up
Wide herbicidal spectrum, except excellent to grassy weed effect in addition to, has pernicious broad leaved weed, sedge weed preferably prevention to imitate
Fruit；The resistance to the action of a drug because being produced using single dose can be slowed down at the same time.
Embodiment
Example of formulations
Embodiment 1：Wettable powder
Topramezone 1%
2 first, 4 chlorine sodium 5%
Bentazone 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 entering after above-mentioned formula in proportion coarse crushing in mixer, then is made wettable after air-flow crushing
Property pulvis.
Embodiment 2：Suspension emulsion
Topramezone 5%
2 first, 4 chlorine sodium 15%
Bentazone 30%
Methyl oleate 10%
Ethoxylated castor oil (emulsifying agent) 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 (defoamer) 0.1%
Glycerine (antifreezing agent) 5%
Ionized water (filler) complements to 100%
Bentazone is dissolved in methyl oleate, ethoxylated castor oil is added, obtains the oil phase of bentazone；
The each components such as 2 first, 4 chlorine sodium+topramezone, wetting agent, dispersant are mixed in proportion, add sand mill
Middle grinding, prepares the suspended phase of 2 first, 4 chlorine sodium+topramezone；
Oil phase containing bentazone is added in the suspended phase containing 2 first, 4 chlorine sodium+topramezone, obtains suspended emulsion.
Embodiment 3：Water-dispersible granules
Topramezone 5%
2 first, 4 chlorine sodium 20%
Bentazone 20%
Lauryl sodium sulfate (wetting agent) 4%
Polycarboxylate (dispersant) 4%
Sodium chloride (disintegrant) 1%
Polyethylene glycol (binding agent) 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 10%
2 first, 4 chlorine sodium 5%
Bentazone 10%
1-methyl-2-pyrrolidinone (solvent) 10%
Castor oil polyoxyethylene ether (emulsifying agent) 5%
Neopelex (emulsifying agent) 5%
Deionized water (filler) complements to 100%
Active compound, solvent, emulsifying agent 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%
Bentazone 30%
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%
Bentazone 20%
Ethoxylated castor oil（Emulsifying agent） 5%
Calcium dodecyl benzene sulfonate（Emulsifying agent） 3%
Dimethyl sulfoxide (DMSO)（Solvent）Complement to 100%
Mentioned component is proportionally prepared, is uniformly mixing to obtain homogeneous phase.
Embodiment 7
Topramezone 20%
2 first, 4 chlorine sodium 55%
Bentazone 25%
Above-mentioned active ingredient is mixed in proportion.
Above example proportioning is weight per distribution ratio.
Biological test example
When the effect of active compound combinations exceedes 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 particular combination of three kinds of reactive compounds
See S.R. Colby, " Calculating Synergistic and Antagonistic Responses of
Herbicide Combinations ", Weeds 1967,15,20-22) it is calculated as below:If
A is when the use of dosage being mg/ha or activity during reactive compound A that concentration is mppm；It is expressed as accounting for and does not locate
Manage the percentage of control；
B is when the use of dosage being ng/ha or activity during reactive compound B that concentration is nppm, is expressed as accounting for and does not locate
Manage the percentage of control；
C is when the use of dosage being hg/ha or activity during reactive compound C that concentration is hppm, is expressed as accounting for and does not locate
Manage the percentage of control；
E0It is when the use of dosage being m, n, h g/ha or concentration are m, when reactive compound A, B and the C of n, hppm
Expection activity,
E0=A×B×C/ (100×（N-1)）
N is 3；
If the active E of actual observation is more than expection activity（E0）, then said composition surpasses adduction, i.e., makees with synergy
With.
Inventor carries out the different ratio of topramezone, 2 first, 4 chlorine sodium and bentazone by substantial amounts of screening test
A large amount of experiment and preventive effect analyses, it is found that in certain ratio range, obtained Herbicidal combinations have synergistic effect,
It is added rather than just three kinds of the simple of medicament, is illustrated with following bioassay example.
To the controlling experiment of corn weeds in field：
Test method：
Medicament is by the way of now with the current.In 10*10cm plastic tubs, it will be not used in the corn field of herbicide
Soil is as culture soil.The barnyard grass that corn upper one year field is gathered（Echinochloa crusgalli (L.)
Beauv.）, moleplant seed（Leptochloachinensis(L.) Nees）, difformed galingale herb（Cyperus difformis L.）、
Firefly Lin（Scirpus juncoides Roxb.）, flat stalk Fischer grass（Scirpus planiculmis Fr.Schmidt）, wild arrowhead
（ Sagittaria trifolia var. sinensis）, rhizoma alismatis（Alisma plantago-aquatica Linn.）, duck
Tongue grass（Monochoriapauciflora（Bl.）Kunth.）, bog pondweed（Potamogeton franchetii）Seed leaching
Soil surface is uniformly sprinkling upon after bubble, waits it to grow to 3-4 leaf phase sizes.Then topramezone, bentazone, 2 first, 4 chlorine are sprayed respectively
Sodium, 4 chlorine sodium of the first of bentazone+2, topramezone+bentazone, 4 chlorine sodium of the first of topramezone+2, ternary built medicament of the invention, so
After carry out observation analysis.
To barnyard grass after spraying 3 weeks（Echinochloa crusgalli (L.) Beauv.）, moleplant seed
（Leptochloachinensis(L.) Nees）, difformed galingale herb（Cyperus difformis L.）, firefly Lin（Scirpus
juncoides Roxb.）, flat stalk Fischer grass（Scirpus planiculmis Fr.Schmidt）, wild arrowhead（ Sagittaria
trifolia var. sinensis）, rhizoma alismatis（Alisma plantago-aquatica Linn.）, Monochoria vaginalis
（Monochoriapauciflora（Bl.）Kunth.）, bog pondweed（Potamogeton franchetii）Survival rate tune
Come to an end fruit：
By above table as it can be seen that the present invention can be used for prevention 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 more preferable herbicidal effect, and being used relative to single dose has obvious synergistic effect；Drop
Low dosage, reduces peasant's drug cost and safer；Herbicide controlling spectrum is expanded, to except excellent to grassy weed effect
Outside, also there is preferable prevention effect to pernicious broad leaved weed, sedge weed.
Claims (14)
- A kind of 1. Herbicidal combinations, it is characterised in that：IncludingThree kinds of active ingredient topramezones, 2 first, 4 chlorine sodium and bentazone,Wherein topramezone, 2 first, 4 chlorine sodium and bentazone weight proportion scope are 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 bentazone weight Ratio range is 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 bentazone weight Ratio range is 1~10:1~20:1~20.
- 4. Herbicidal combinations according to claim 1, it is characterised in that：Topramezone, 2 first, 4 chlorine sodium and bentazone weight Ratio range is 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 bentazone weight Ratio range is 1~5:1~5:1~5.
- 6. Herbicidal combinations according to claim 1, comprising active ingredient topramezone, 2 first, 4 chlorine sodium and bentazone, are filled out Fill agent and/or surfactant.
- 7. Herbicidal combinations according to claim 1, it is characterised in that：The active ingredient topramezone, 2 first, 4 chlorine sodium The 5%-90% of Herbicidal combinations is accounted for bentazone quality sum.
- 8. Herbicidal combinations according to claim 1, it is characterised in that：The active ingredient topramezone, 2 first, 4 chlorine sodium The 10%-80% of Herbicidal combinations is accounted for bentazone quality sum.
- 9. Herbicidal combinations according to claim 1, it is characterised in that：The active ingredient topramezone, 2 first, 4 chlorine sodium The 20%-60% of Herbicidal combinations is accounted for bentazone quality sum.
- 10. Herbicidal combinations according to claim 1, it is characterised in that：The active ingredient topramezone, 2 first, 4 chlorine sodium The 30%-50% of Herbicidal combinations is accounted for bentazone quality sum.
- 11. the Herbicidal combinations described in claim 1, it is characterised in that：Formulation is wettable powder, missible oil, suspending agent, micro-capsule Agent, microemulsion, aqueous emulsion, suspension emulsion, water dispersible granules, soluble granula, aqua, microcapsule suspension-suspendinagent agent, ultra-low volume liquid Agent.
- 12. the answering in broad-leaved section weeds, sedge weed, grassy weed is prevented and kill off of the Herbicidal combinations described in claim 1 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 for controlling undesirable plant, including：（i）Before undesirable plant germination（Before bud）； （ii）After undesirable plant germination（After bud）, or（iii）（i）With（ii）When, will by the right of herbicidally effective amount 1 Herbicidal combinations are asked to be applied on the growth place or leaf or stem of undesirable plant.
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| CN1180476A (en) * | 1996-10-24 | 1998-05-06 | 冶金工业部长沙矿冶研究院 | Microcapsule water emulsion type composite herbicide |
| CN1117750C (en) * | 1997-01-17 | 2003-08-13 | 巴斯福股份公司 | 3-heterocyclyl-substituted benzoyl derivatives |
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