CN105284848B - A kind of Herbicidal combinations - Google Patents

Abstract

The present invention relates to a kind of Herbicidal combinations and its method for preventing and kill off undesirable plant.The present invention provides a kind of Herbicidal combinations, comprising active component（I) and（II), wherein（I it is) by formula（I) the compound of description：（I）And（II it is) by formula（II) the compound of description:

Description

A kind of Herbicidal combinations

Technical field

The present invention relates to a kind of Herbicidal combinations and its method for preventing and kill off undesirable plant.

Background technology

When herbicide is used alone, their effect is normally only temporary transient, i.e., can see after some time Observe the resistance of weeds.In crop protection, wish to increase the activity of reactive compound and the reliability of effect in principle.It is special Do not wish that reactive compound effectively prevents and kill off undesirable plant, but it is simultaneously compatible with useful plant of concern.It is desirable to Reactive compound can be used with alap rate of application, and the compatibility with useful plant is realized on highland as far as possible.

Promazine Sulfometuron Methyl（Propyrisulfuron）, molecular formula is C₁₆H₁₈O₅N₇SCl, its molecular structure is as follows：

（Formulas I）

Promazine Sulfometuron Methyl is, by the pyrimidine radicals sulfonylurea herbicide of SUMITOMO CHEMICAL chemistry exploitation, to be mainly used in rice terrace and prevent Except the grass family such as barnyard grass and broad-leaved section weeds.The product consumption is low, and the miscellaneous of resistance is produced to some known sulfonylurea herbicides Grass has good preventive effect.

Metamifop（Metamifop）, chemical name is（R）-2 - [4 - [（6-chloro- 2-benzoxazolyl） Epoxide] phenoxy group]-N-（2-fluorophenyl）- N- methyl propanamides, its structural formula is：

（Formula (II）

Metamifop is the aromatic oxygen-phenoxy group propionates class herbicide developed by Chemical Engineering Technology research institute of South Korea, can be fabulous Prevent and kill off most of annual and perennial grassy weed, from , metamifops pair unlike most of such herbicides Rice safety, can effectively prevent and kill off rice terrace main weeds, such as barnyard grass, moleplant seed, lady's-grass and eleusine indica, be mainly used in transplanting and straight Broadcast paddy field weeding.Metamifop suppresses the aliphatic acid synthesis of weeds by the suppression to acetyl-CoA carboxylase, so as to press down Weed growth processed, there is blade and moves back green in sensitive varieties in several days after medication, Developing restraint, and some kinds occur for 2 weeks after administration It is withered or even dead.

Metamifop can effectively prevent and kill off grassy weed, but poor to broad-leaved section weeds, sedge weed preventive effect.Sulfonylureas Class herbicide is selective inner-adsorption conduction-type herbicide, can be absorbed by weeds root and blade, is conducted rapidly in plant body, is suppressed Cell division and growth, after susceptible weeds absorb medicament, young shoot and root stop growing rapidly, tender tissue jaundice, then withered, Can effectively prevent and kill off broad leaved weed, and produce the weeds of resistances to have good preventive effect to some known sulfonylurea herbicides.

So, in order to make up the deficiency of single dose, single dose herbicide need to be compounded, it is used to tackle increasingly serious weeds Harm.

The content of the invention

It is an object of the invention to provide a kind of Herbicidal combinations and its method for preventing and kill off undesirable plant.Mesh of the invention Be to provide a kind of Herbicidal combinations, comprising active component (I) and (II), wherein formula (I) is by formula（I）The chemical combination of description Thing, promazine Sulfometuron Methyl（Propyrisulfuron）,

(I)

(II) it is by the compound of formula (II) description, metamifop（Metamifop）,

(II)

Wherein weight ratio (II) of active component (I) and (II): (II) is 100: 1 to 1：100.

Preferably, wherein weight ratio (I) of active component (I) and (II): (II) is 50: 1 to 1: 50.

Preferably, wherein weight ratio (I) of active component (I) and (II): (II) is 25: 1 to 1: 25.

It is furthermore preferred that wherein weight ratio (I) of active component (I) and (II): (II) is 10: 1 to 1: 10.

It is furthermore preferred that wherein weight ratio (I) of active component (I) and (II): (II) is 5: 1 to 1: 5.

A kind of Herbicidal combinations, comprising active component (I) and (II), filler and/or surfactant.

The Herbicidal combinations also include safener, and safener is selected from benoxacor, fenclorim, dichlormide, pyrazoles solution Careless ester, wherein the safener is 1 relative to the weight proportion of promazine Sulfometuron Methyl and the active component of metamifop:100 to 20:1。

Described Herbicidal combinations, comprising promazine Sulfometuron Methyl He metamifop, filler and/or surfactant.

In the Herbicidal combinations, the content of active component (I) and (II) accounts for the 5%-90% of the Herbicidal combinations.

In the Herbicidal combinations, the content of active component (I) and (II) accounts for the Herbicidal combinations 10%-80%.

In the Herbicidal combinations, the content of active component (I) and (II) accounts for the Herbicidal combinations 20%-60%.

The formulation of the Herbicidal combinations is wettable powder, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, outstanding Floating emulsion, water dispersible granules, microcapsule suspension-suspendinagent agent, ultra low volume liquids.

Application of the described Herbicidal combinations on undesirable plant is prevented and kill off.

Application of the Herbicidal combinations in unifacial leaf, broadleaf weed is prevented and kill off.

The Herbicidal combinations prevent and kill off wheat, corn and soybean, sugar beet, sugarcane, cotton, paddy rice, beans, flax, In barley, oat, rye, triticale, rape, potato, broomcorn millet, herbage, greenery patches or lawn, fruit plantation Zhong Huofei crop belts Grass family, broad-leaved section, the application of sedge weed in domain.Unifacial leaf, broadleaf weed particularly in rice crop is prevented and kill off Using.

A kind of method for preventing and kill off undesirable plant, it is characterised in that by the active component of Herbicidal combinations of the invention (I) and (II) collectively or individually is applied to undesirable plant, plant propagation material, or undesirable plant growth area Domain.

Herbicidal combinations of the invention cause that active component (I) and the activity of (II) cooperate with increasing in unexpected mode By force, beyond use single active component (I) and (II) accessible activity.Synergy can make the rate of application of single herbicide Reduce, the effectiveness under identical rate of application it is higher, prevent and kill off do not prevented and kill off also kind, prevent and kill off to single herbicide or various weedings Agent is tolerated or resistant kind, is reduced using phase extension and/or the required number of times that is administered alone, and is obtained for user Obtain the weeding system advantageously in economic and ecology.

Specific embodiment

The present invention provides a kind of Herbicidal combinations, and comprising active component (I) and (II), wherein formula (I) is by formula（I） The compound of description,

(I)

(II) be by formula (II) describe compound,

(II)

Wherein weight ratio (I) of active component (I) and (II): (II) is 100: 1 to 1：100, preferably 50: 1 to 1：50, more It is preferred that 25: 1 to 1：25, more preferably 10: 1 to 1：10, further preferably 5: 1 to 1：5.

Synergy can make single herbicide rate of application reduce, the effectiveness under identical rate of application it is higher, prevent and kill off also not The kind prevented and kill off, prevent and kill off to single herbicide or various herbicide tolerants or resistant kind, using phase extension and/or Required is administered alone number of times reduction, and obtains the weed control body in economic and ecology advantageously for user System.

Herbicidal combinations of the invention cause that active component (I) and the activity of (II) cooperate with increasing in unexpected mode By force, beyond use single active component (I) and (II) accessible activity.

The rate of application of active component (I) can change in a wide range, for example in 0.1g to 1000g A.I./ha (hereinafter, A.I./ha represents " active material/hectare "=reactive compound meter based on 100% purity).With 0.1 to 1000g A.I./ha Rate of application when applying, when prior to seeding, before plantation or before bud and after bud in method using active component (I) when, it has relatively Noxious plant spectrum to be prevented and kill off wider, such as annual and perennial unifacial leaf or dicotyledonous broad leaved weed, grassy weed And sedge, and undesirable crop plants.

The rate of application of active component (II) can change in a wide range, and such as 1g to 5000g A.I./ha is (hereinafter, A.I./ha represents " active material/hectare "=reactive compound meter based on 100% purity), it has relatively wide waits to prevent The noxious plant spectrum removed.

Active component (I) for example can be by reference to the administration of mentioned single compound with (II) suitable proportion Depending on rate.In the present compositions, rate of application can generally be reduced.In the present compositions, active component (I) with (II) preferred proportioning (I): (II) is following weight ratio：

Weight ratio (I) of active component (I) and (II): (II) is generally 100: 1 to 1：100；

Preferably, weight ratio (I) of active component (I) and (II): (II) is 50: 1 to 1：50；

Particularly, weight ratio (I) of active component (I) and (II): (II) is 25: 1 to 1：25；

It is more special, weight ratio (I) of active component (I) and (II): (II) is 10: 1 to 1：10；

It is more special, weight ratio (I) of active component (I) and (II): (II) is 5: 1 to 1：5.

Herbicidal combinations of the invention can also be different from active component (I) and (II) comprising one or more and be also served as Other reactive compounds of selective herbicide.

Herbicidal combinations of the invention can also include the various reactive compounds of other components, be selected from safener, kill Epiphyte pharmaceutical, insecticide, acaricide, nematicide, bird repellent, soil conditioner, nutrient for plants (fertilizer), Yi Jijie Structure is different from the herbicide and plant growth regulator of active component (I) and (II).

Preferably, the different types of agrochemically active compound includes Acetochlor (acetochlor), Acibenzolar (acibenzolar), diazosulfide (acibenzolar-S-methyl), acifluorfen (acifluorfen), aclonifen (aclonifen), alachlor (alachlor), allidochlor (allidochlor), alloxydimsodium (alloxydim), ametryn (ametryn), amicarbazone (amicarbazone), amidosulfuron (amidosulfuron), the acid of chlorine Fampridine (aminopyralid), Amrol (amitrole), Amcide Ammate (ammonium sulfamate), ancymidol (ancymidol), anilofos (anilofos), sulphur grass spirit (asulam), atrazine (atrazine), azafenidin (azafenidin), azimsulfuron (azimsulfuron), benfuresate (benfuresate), bensulfuron-methyl (bensulfuron), bentazone (bentazone), benzfendizone (benzfendizone), benzobicylon (benzobicyclon), benzofenap (benzofenap), fluorine sulfanilamide (SN) grass (benzofluor), fluorine benzofenap (bicyclopyrone), bispyribac-sodium (bispyribac-sodium), Brominal (bromoxynil), butachlor (butachlor), butafenacil (butafenacil), butralin (butralin), cafenstrole (cafenstrole), double acyls Careless amine (carbetamide), carfentrazone (carfentrazone), chlorimuronethyl (chlorimuron, chlorimuron- Ethyl), cycocel (chlormequat chloride), chlortoluron (chlorotoluron), chlorine sulphur are grand (chlorsulfuron), cinmethylin (cinmethylin), cinosulfuron (cinosulfuron), clethodim (clethodim), Clomazone (clomazone), clomeprop (clomeprop), clopyralid (clopyralid), cyanazine (cyanazine), cyclanilide (cyclanilide), AC322140 (cyclosulfamuron), cycloxydim (cycloxydim), ring cafenstrole (cyprazole), daimuron (daimuron/dymron), Mediben (dicamba), dogstail Clever (diclofop-methyl), smart diclofop-methyl (diclofop-P-methyl), diclosulam (diclosulam), acetyl first Careless amine (diethatyl, diethatyl-ethyl), diflufenican (diflufenican), diflufenzopyr (diflufenzopyr, diflufenzopyr-sodium), oxazoles grand (dimefuron), dimepiperate (dimepiperate), Dimethachlor (dimethachlor), dimethametryn (dimethametryn), diphenamide (diphenamid), dipropetryn (dipropetryn), diquat dibromide (diquat), diuron (diuron), ethametsulfuron (ethametsulfuron, Ethametsulfuron-methyl), ethephon (CEPHA),2-(chloroethyl) phosphonic acid (ethephon), ethidimuron (ethidimuron), ethoxysulfuron (ethoxysulfuron), ethobenzanid (etobenzanid), oxazoles diclofop-methyl (fenoxaprop), fenoxaprops (fenoxaprop-P), oxazoles diclofop-methyl (fenoxaprop-ethyl), fentrazamide (fentrazamide), flazasulfuron (flazasulfuron), florasulam (florasulam), fluazifop (fluazifop), efficient fluazifop (fluazifop-P), fluazifop-P-butyl (fluazifop-butyl), efficient fluazifop butyl ester (fluazifop-P- Butyl), fluazolate (fluazolate), flucarbazonesodium (flucarbazone, flucarbazone-sodium), fluorine pyrrole Sulphur grand (flucetosulfuron), flufenacet (flufenacet), flumetralim (flumetralin), Flumetsulam (flumetsulam), flumioxazin (flumioxazin), alkynes grass amine (flumipropyn), fluometuron (fluometuron), fluorodifen (fluorodifen), fluoroglycofen-ethyl (fluoroglycofen, Fluoroglycofen-ethyl), flupoxam (flupoxam), flupyrsulfuron-methyl-sodium (flupyrsulfuron), fluridone (fluridone), fluorochloridone (flurochloridone), fluroxypyr (fluroxypyr), flurtamone (flurtamone), thiazole oxamide (fluthiamide), fomesafen (fomesafen), Glufosinate (glufosinate, glufosinate-ammonium), Glufosinate-P (glufosinate-P, glufosinate-P- Ammonium), Glufosinate-P- sodium salts (glufosinate-P-sodium), glyphosate (glyphosate), lyphosate isopropyl ammonium Salt (glyphosate-isopropylammonium), fluorine nitre sulfonamide (halosafen), halosulfuronmethyl (halosulfuron, halosulfuron-methyl), fluazifop-butyl (haloxyfop), smart fluazifop-butyl (haloxyfop- P), fluorine pyrrole second standing grain spirit (haloxyfop-ethoxyethyl), smart fluorine pyrrole second standing grain spirit (haloxyfop-P-ethoxyethyl), fluorine Pyrrole first standing grain spirit (haloxyfop-methyl), haloxyfop-methyl (haloxyfop-P-methyl), hexazinone (hexazinone), miaow oxalic acid (imazamethabenz, imazamethabenz-methyl), imazamox (imazamox, imazamox-ammonium), AC 263222 (imazapic), imazapyr (imazapyr, imazapyr- Isopropylammonium), imazaquin (imazaquin, imazaquin-ammonium), imazethapyr (imazethapyr, imazethapyr-ammonium), imazosulfuron (imazosulfuron), inabenfide (inabenfide), indanofan (indanofan), iodine metsulfuron-methyl (iodosulfuron, iodosulfuron-methyl- Sodium), ioxynil (ioxynil), isoproturon (isoproturon), Yi Evil acyls grass amine (isoxaben), Yi Evil chlorine humulones (isoxachlortole), isoxaflutoles (isoxaflutole), Yi Evil grass ether (isoxapyrifop), lactofen (lactofen), lenacil (lenacil), 2 methyl 4 chlorophenoxyacetic acid (MCPA), 2- first -4- chlorophenoxy butyric acid (MCPB), 2- first -4- chlorophenoxies methyl butyrate (MCPB-methyl), 2- first -4- chlorophenoxy ethyl butyrates (MCPB- Ethyl), 2- first -4- chlorophenoxies sodium butyrate (MCPB-sodium), mefenacet (mefenacet), chlorine sulphonyl grass amine (mefluidide), methyl piperidine (mepiquat-chloride), mesosulfuronmethyl (mesosulfuron, mesosulfuron- Methyl), mesotrione (mesotrione), methabenzthiazuron (methabenzthiazuron), metamitron (metamitron), metazachlor (metazachlor), methazole (methazole), Sulfonylurea (methiopyrsulfuron), methoxyphenone (methoxyphenone), methyldymron (methyldymron), isopropyl first grass Amine (metolachlor), S-metolachlor (S-metolachlor), metosulam (metosulam), metoxuron (metoxuron), metribuzin (metribuzin), metsulfuron-methyl (metsulfuron, metsulfuron-methyl), molinate (molinate), monosulfmeturon (monosulfuron), monosulfmeturon ester (monosulfuron ester), telvar (monuron), napropamide (napropamide), nicosulfuron (nicosulfuron), oxadiargyl (oxadiargyl), Evil humulones (oxadiazon), oxasulfuron (oxasulfuron), oxaziclomefones (oxaziclomefone), Oxyfluorfen (oxyfluorfen), paclobutrazol (paclobutrazol), paraquat (paraquat, paraquat dichloride), diformazan Penta clever (pendimethalin), Huan Wu Evil humulones (pentoxazone), pethoxamid (pethoxamid), picloram (picloram), fluorine pyrrole acyl grass amine (picolinafen), pinoxaden (pinoxaden), piperophos (piperophos), Evil Azole amide (pretilachlor), probenazole (probenazole), profluazol (profluazol), profluralin (prifluraline), clefoxidim (profoxydim), prometryn (prometryn), propanil (propanil), propazine (propazine), Chem hoe (propham), isoxazoles acyl grass amine (propisochlor), the phonetic sulphur of piperazine imidazoles (propyrisulfuron), propyzamide (propyzamide), prosulfocarb (prosulfocarb), prosulfuron (prosulfuron), prynachlor (prynachlor), pyraclonil (pyraclonil), pyraflufen-ethyl (pyraflufen, Pyraflufen-ethyl), pyrazosulfuron (pyrazosulfuron, pyrazosulfuron-ethyl)), iso-propyl-ester nitrofen (pyribambenz-isopropyl), propyl-ester nitorfen (pyribambenz-propyl), pyribenzoxim (pyribenzoxim), pyributicarb (pyributicarb), pyriftalid (pyriftalid), KIH 6127 (pyriminobac, Pyriminobac-methyl), Nylar (pyrimisulfan), pyrithiobacsodium (pyrithiobac, pyrithiobac- Sodium), pyroxasulfone, pyroxsulam (pyroxsulam), dichloro quinolinic acid (quinchlorac), chloromethane quinoline Sour (quinmerac), quizalofop-ethyl (quizalofop), Quizalotop-ethyl (quizalofop-P), Quizalotop-ethyl ethyl ester (quizalofop-P-ethyl), rimsulfuron (rimsulfuron), benzene flumetsulam (saflufenacil), Zhong Dingtong (secbumeton), sethoxydim (sethoxydim), Tupersan (siduron), sulphur humulone (sulcotrione), sulfentrazone (sulfentrazone), sulfometuronmethyl (sulfometuron, sulfometuron-methyl), Thidiazuron (thidiazuron), thifensulfuronmethyl (thifensulfuron, thifensulfuron-methyl), benthiocarb (thiobencarb), tiocarbazil (tiocarbazil), triasulfuron (triasulfuron), triaziflam (triaziflam), tribenuron-methyl (tribenuron, tribenuron-methyl), trichloroacetic acid (TCA), trichlopyr (triclopyr), tridiphane (tridiphane), trifloxysulfuron (trifloxysulfuron, trifloxysulfuron- Sodium), trefanocide (trifluralin), triflusulfuronmethyl (triflusulfuron), triflusulfuronmethyl methyl esters (triflusulfuron-methyl), trimeturon (trimeturon), TrinexAN_SNacethyl (trinexapac, trinexapac- Ethyl), tritosulfuron (tritosulfuron), tsitodef, uniconazole P (uniconazole).

It is former although the herbicide (I) and (II) show good or even enough selectivity in a large amount of crops Then go up, in some crops, particularly also when mixing with other less herbicides of selectivity, it is possible that being planted to crop The phytotoxicity of thing.So the composition comprising Herbicidal combinations of the invention and one or more safener is special Favourable.The safener is used with effective dose of detoxifying, such as economically important crop or in fruit plantation (plantation Crop) the middle plant toxicity side effect for reducing herbicide used.The economically important crop such as cereal (wheat, barley, Rye, oat, corn, paddy rice, broomcorn millet), sugar beet, sugarcane, rape, cotton, soybean, preferred cereal, specifically for paddy rice.

Hereinafter be for example suitable for safener compound group (including possible stereoisomer and agriculturally conventional ester or Salt)：Benoxacor (benoxacor), cloquitocet_mexyl (cloquintocet (- mexyl)), cyometrinil (cyometrinil), Cyprosulfamide, dichlormide (dichlormid), dicyclonon, o- phenyl phosphoric acid o, o- diethyl ester (dietholate), the careless amine of fenchlorazole (fenchlorazole (- ethyl)), fenclorim (fenclorim), solution (flurazole), fluxofenim (fluxofenim), Xie Cao oxazoles (furilazole), isoxadifen (isoxadifen (- Ethyl)), mefenpyrdiethyl (mefenpyr (- diethyl)), methyl carbamic acid 4- chlorobenzenes base ester (mephenate), naphthalene two Formic anhydride, oxabetrinil (oxabetrinil).

Known some safeners are used as herbicide, and correspondingly, in addition to having herbicide effect to noxious plant, also rise To the effect of cover crop plant.

The weight of Herbicidal combinations and safener than generally depending on the rate of application of herbicide and the effect of the safener, And can change in a wide range, such as 90000: 1 to 1: 5000, preferably 7000: 1 to 1: 1600, especially 3000: 1 to 1 : 500, it is more in particular in 1:100 to 20:In the range of 1.Safener can be prepared with finished product preparation with active component (I) and (II) or Supplied in the form of with the tank mix of the Herbicidal combinations and used.

Herbicidal combinations of the invention are to the economically important unifacial leaf of wide range and dicotyledonous harmful plants such as broad-leaved Weeds, grassy weed or sedge, including the species resistant to weeding active compound have excellent weeding Activity, the weeding active compound is such as glyphosate, Glufosinate, atrazine, imidazolinone herbicide, sulfonylurea.

The monocotyledon weed that can be prevented and kill off by Herbicidal combinations of the invention and the dicotyledonous weed flora group's that can be mentioned that Some representational instantiations, but it is not limited to some kinds.

The example of the weed species of the herbicidal composition useful effect is, such as Avena of monocotyledon weed kind (Avena spp.), amur foxtail category (Alopecurus spp.), false Agrostis (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 The annual grassy weeds such as (Setaria spp.) and Cyperus (Cyperus)；And the Agropyron in perennial kind (Agropyron), Cynodon (Cynodon), cogon (Imperata) and sorghum and perennial Cyperus kind.

For broadleaf weed kind, action spectrum is extended to subordinate, such as 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.), Polygonum (Polygonum spp.), chrysanthemum harvest spp (Sida spp.), sinapsis alba category (Sinapis spp.), Solanum (Solanum spp.), Stellaria (Stellaria spp.), mother-in-law Procumbent speedwell category (Veronica spp.), Eclipta prostrata category (Eclipta spp.), Daubentonia (Sesbania spp.), Aeschynomene Spp. with the annual grassy weeds such as Viola (Viola spp.), Xanthium (Xanthium spp.), and japanese bearbind genus (Convolvulus), the perennial weeds such as Cirsium (Cirsium), Rumex (Rumex) and artemisia (Artemisia).

Herbicidal combinations of the invention cover weeds spectrum wider.For example have to following weeds and well prevent and kill off：List In leaf weeds with subordinate, such as Echinochloa, Panicum, Poa L., Sprangletop, Brachiaria, knotgrass, setaria, Sha Careless category, Monochoria (Monochoria spp.), genus fimbristylis, Sagittaria (Sagittaria spp.), Eleocharis (Eleocharis spp.), Scirpus (Scirpus spp.), Waterplantain (Alisma spp.), leaf of bamboo Lepidium (Aneilema Spp.), water screening spp (Blyxa spp.), eriocaulon buergerianum (Eriocaulon spp.), Potamogeton (Potamogeton spp.) Deng all preventing and kill off very well, particularly following kind：Water barnyard grass (Echinochloa oryzicola), Monochoria vaginalis (Monochoria Vaginalis), yak grass (Eleocharis acicularis), scouring rush's shape water chestnut (Eleocharis kuroguwai), abnormal shape Nutgrass flatsedge (Cyperus difformis), Herba Cyperi Glomerati (Cyperus serotinus), short arrowhead (Sagittaria pygmaea), Alisma canaliculatum (Alisma canaliculatum), firefly Lin (Scirpus juncoides).In the case of broadleaf weed, Activity profile is extended to subordinate, such as Polygonum, Han Lepidium (Rorippa spp.), section section Lepidium (Rotala spp.), Vandellia (Lindernia spp.), Bidens (Bidens spp.), sphenoclea (Sphenoclea spp.), horsefly eye category (Dopatrium spp.), Eclipta prostrata category (Eclipta spp.), Elatine ambigua (Elatine spp.), Gratiola (Gratiola spp.), Vandellia (Lindernia spp.), ludwigia (Ludwigia spp.), Oenanthe (Oenanthe spp.), Ranunculus (Ranunculus spp.), damp chilly category (Deinostema spp.) etc..It is particularly all Such as following kind：Mexicana (Rotala indica), cusp flower (Sphenoclea zeylanica), Procumbent Falsepimpernel (Lindernia procumbens), false loosestrife (Ludwigia prostrate), bog pondweed (Potamogeton Distinctus), waterwort (Elatine triandra), Chinese celery (Oenanthe javanica).

Active component (I) of the Herbicidal combinations of the invention comprising effective dose and (II) have synergy.When common or Synergy can be observed when active component (I) and (II) is almost administered simultaneously；When the different time respectively apply activity into When dividing (I) and (II), synergy is also observed that；Can also sequential application (I) and (II), such as applied and then bud before first bud After apply, or applied after first early stage bud, then applied after mid-term or later stage bud.Work is preferably administered simultaneously jointly or almost herein Property composition (I) and (II), and particularly preferably common use.

A kind of method for preventing and kill off undesirable plant, it is characterised in that by the work of the Herbicidal combinations described in claim 1 Property composition (I) and (II) collectively or individually be applied to undesirable plant, its seed or vegetative propagation organ, or be not intended to plant The region of thing growth.The undesirable plant is unifacial leaf, broadleaf weed.

If Herbicidal combinations of the invention are applied into soil surface before germination, weeds seedling is entirely prevented to send out Bud, or weed growth is to cotyledon period, but then it just stops growing, and it is final completely dead after two weeks to surrounding.

If the reactive compound to be applied to the green parts of plant after germination, growth equally can be after treatment Just drastically stop in the suitable short time, and growth period of ruderal plant when being maintained at time of application point, or it is in a timing Between after it is completely dead, so as to extremely early in this way and constantly eliminate by the competing of the weeds generation that is harmful to crop plants Strive.For paddy rice, the Herbicidal combinations can be also applied in water, then it passes through soil, bud and root and is ingested.

When active component (I) and active component (II) common use, there is chemiluminescence.Here, the combination Expected summation of the activity of thing higher than each herbicidal activity applied.Synergy makes rate of application to reduce, and prevents and kill off more wide range Broad leaved weed, grassy weed and sedge, herbicide effect work faster, the duration it is longer, by only once or several Secondary administration just has to noxious plant preferably prevents and kill off and can widen the phase of administration.The dosage that is used in the Herbicidal combinations and The effective dose of compound (I) and (II) is all adjustable to relatively low level, so that its effect to soil as little as optimum degree. This causes that it can not only be applied to sensitive crop first, also almost avoids underground water pollution.Herbicidal combinations of the present invention make Rate of application needed for active component is obtained to significantly decrease.

Above-mentioned characteristic and advantage are for weed control keeping agricultural/forestry/garden crop or greenery patches/meadow from not wishing The competitive plant of prestige, so as to ensure and/or increase what yield level was a need for from the angle of quality and quantity.With regard to the spy For property, this new Herbicidal combinations have significantly surmounted the state of the art of this area.

The present invention also provides the method that selectivity prevents and kill off undesirable plant, preferably in crop plants, is particularly paddy rice Prevent and kill off undesirable plant in crop, the method is included as the active component of Herbicidal combinations of the present invention (I) and (II), example As being applied to plant (such as noxious plant, such as unifacial leaf or dicotyledonous broad leaved weed, grassy weed, Sha together or separately Careless section plant or undesirable crop plants), seed (such as caryopsis, seed or vegetative propagation organ, such as stem tuber and with bud Branch portion), or the region (region of such as cultivation, it can also be covered with water) for being applied to plant growth.A kind of herbicide can be Before another herbicide, the region (area of such as cultivation of plant, seed or plant growth is applied to afterwards or concurrently Domain).

Undesirable plant is understood to mean that the local all plants for being grown in being not intended to its growth.These can be, (such as unifacial leaf or broadleaf weed, grassy weed, sedge or not for example, noxious plant（II）Crop plant Thing), including for example to some weeding active compound (such as glyphosate, Glufosinate, atrazine, imidazolinone herbicide, sulphurs Ureide derivative) resistant those plants.

Herbicidal combinations of the invention are alternatively used for preventing and kill off undesirable plant in following plant, and for example crop is planted Thing such as crops, such as monocot crops, such as cereal (such as wheat, barley, rye, oat, paddy rice, corn, broomcorn millet), or Dicotyledonous crops, such as sugar beet, sugarcane, rape, cotton, sunflower and legume, such as Glycine (such as soybean (Glycine max.), such as Non-transgenic soybean (such as conventional cultivation kind, such as STS cultigens) or genetically engineered soybean is (for example RR soybean or LL soybean) and its cenospecies), Phaseolus (Phaseolus), Pisum (Pisum), Vetch (Vicia) and Arachis (Arachis), or various botany classifications vegetable crop, for example potato, leek, cabbage, carrot, kind Eggplant, onion；In fruit plantation in (plantation crops), greenery patches, lawn and pastoral area；Or (for example occupied in non-crop area The square of settlement or industrial area, railroad track) on, particularly in rice crop.It is preferred that also to having sent out before noxious plant germination The noxious plant (such as broad leaved weed, grassy weed, sedge or undesirable crop plants) of bud is administered, and Growth period with the crop of sowing/plantation is unrelated.

It is used for the purposes that selectivity prevents and kill off undesirable plant present invention also offers Herbicidal combinations of the invention, preferably In crop plants, particularly undesirable plant is prevented and kill off in rice crop.

Herbicidal combinations of the invention are highly applicable to optionally prevent and kill off the noxious plant in rice crop.The paddy rice Crop is included in the form that is possible to of most diverse Rice under Condition strain cultivation, and such as dry land is cultivated, nonirrigated farmland is cultivated or paddy field Cultivate, wherein it can be natural (rainfall) and/or artificial (pouring, flood irrigation) to irrigate.Paddy rice for this purpose can be normal Seed, the seed (being obtained by mutation or transgenosis) of the tolerance of hybrid seed or resistant-at least cultivated are advised, it can be by Indica type or round-grained rice type kind or its cenospecies are derived.

Can be by being usually used in the various application processes of rice herbicide come using Herbicidal combinations of the invention.Particularly preferably Ground, it is applied by spraying and/or is applied by impregnating to apply.Impregnate apply in, using when, the water in paddy field had covered ground Face is up to 3-20cm.Then Herbicidal combinations of the invention are placed directly within the water in paddy field.Worldwide, spraying is applied With being mainly used in the paddy rice of direct sowing, and impregnate the paddy rice applied and be mainly used in transplanting.

Herbicidal combinations of the invention can be formulated as example single component-if appropriate by known method, with other work Property compound, additive and/or common dosage forms auxiliary agent-mix preparation, then by said composition dilute with water in a usual manner After apply；Or it is formulated as a barrel mix formulation by the way that each component water individually prepared or part is individually prepared is diluted jointly. Can individually be prepared with separate administration or the independent each component prepared in part.Also many parts can be divided to use the herbicide or weeding Composition (sequential application), such as apply after followed by carrying out bud before dress seed first before applying or sowing/plant pre-treatment or bud Using or early stage bud after apply, applied after then carrying out mid-term or later stage bud.Preferably it is used in conjunction with herein or almost while using The reactive compound of the composition, is particularly preferably used in conjunction with.

The active component (I) and (II) can jointly or respectively be converted into conventional formulation, for example solution, emulsion, Suspending agent, pulvis, foaming agent, paste, granule, aerosol, the natural and synthetic material impregnated with reactive compound and poly- Microcapsules in compound material.Also can be mentioned that dedicated for cultivating the preparation of paddy rice, for example, applied again by water by shaking bottle Rice field water dissolves and be distributed disseminate with granule, especially big granule, floating particle agent, floating suspension emulsion.The preparation can be wrapped Containing conven-tional adjuvants and additive.

These preparations are prepared in known manner, for example, mix with filler by by the reactive compound, optionally Prepared using surfactant.

If filler used is water, such as organic solvent is it is also possible to use as secondary solvent.Main suitable liquid Solvent is：Aromatic compounds, such as dimethylbenzene, toluene or alkylnaphthalene；Chlorinated aromatic hydrocarbons and chlorinated aliphatic hydrocarbons, such as chlorobenzene, chloroethene Alkene or dichloromethane；Aliphatic hydrocarbon, such as hexamethylene or paraffin, such as mineral oil fractions, mineral oil and vegetable oil；Alcohols, such as fourth Alcohol or ethylene glycol and its ether and ester；Ketone, such as acetone, methyl ethyl ketone, methyl iso-butyl ketone (MIBK) or cyclohexanone；It is highly polar molten Agent, such as dimethylformamide and dimethyl sulfoxide (DMSO), Yi Jishui.

Suitable solid carrier is：For example ammonium salt and crush natural minerals, for example kaolin, clay, talcum, chalk, Quartz, attapulgite, montmorillonite or diatomite；With the synthetic mineral crushed, such as high dispersive silica, aluminum oxide and silicic acid Salt；Solid carrier suitable for granule is：The natural crystal for example crushed and be classified, such as calcite, marble, float stone, Sepiolite and dolomite, and inorganic and organic powder synthesis particle, and organic material (for example sawdust, coconut husk, corncob and Tobacco rods) particle.

Suitable surfactant is：Such as nonionic and anion emulsifier, such as polyoxyethylene fatty acid ester, polyoxy Ethene fatty alcohol ether, such as alkylaryl polyglycol ether, alkylsulfonate, alkyl sulfate, arylsulphonate, and albumen Matter hydrolysate；Suitable dispersant is：Such as lignin sulfite and methylcellulose.

Tackifier, such as carboxymethylcellulose calcium can be used in the preparation；The natural and conjunction of powder, particle or latex form Into polymer, such as gum arabic, polyvinyl alcohol and polyvinyl acetate；And natural phospholipid, such as cephalin and lecithin Fat and synthetic phospholipid.Other possible additives are mineral oil and vegetable oil.

Colouring agent, such as inorganic pigment, such as iron oxide, titanium oxide and Prussian blue can be used；And toner, for example Alizarin colouring agent, azo colouring agent and metal phthalocyanine colouring agent；And micronutrient, for example molysite, manganese salt, boron salt, mantoquita, Cobalt salt, molybdenum salt and zinc salt.

In the Herbicidal combinations, the content of active component (I) and (II) accounts for the 5%-90% of the Herbicidal combinations, preferably 10%-80%, more preferably 20%-60%.

Active component (I) and (II) can also be using itself or as with other agricultural chemical activity compounds (for example The herbicide known) mixing dosage form be used for prevent and kill off undesirable plant, do not wished for management of weeds or for preventing and kill off for example The crop plants of prestige, or such as finished product preparation or tank mix.

Active component (I) and (II) can with itself, its dosage form or by further diluting prepared therefrom use Form is used, for example wettable powder, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, suspension emulsion, water dispersible granules, micro- Capsule suspension-suspending agent, ultra low volume liquids use them.

The reactive compound can be applied to plant (such as noxious plant, such as unifacial leaf or dicotyledonous broad leaved weed, standing grain Undergraduate course weeds, sedge or undesirable crop plants), plant propagation material (such as caryopsis, seed or vegetative propagation device Official, such as stem tuber or the branch portion with bud) or cultural area (such as soil), be preferably applied to green plants and plant parts with And, if appropriate, additionally it is applied to soil.A kind of possible use is the activation described in common use in the form of tank mix Compound, wherein the concentrate formulation of the optimal preparation of each reactive compound is mixed together with water in groove, then applies gained and sprays Spill liquid.

The joint herbicidal formulations of Herbicidal combinations of the invention have the form for being more easy to use, because the component Amount has been optimal proportion.Additionally, the auxiliary agent in preparation can each other be adjusted and optimized.

Example of formulations

Embodiment 1：The metamifop oil-suspending agent of 25% promazine Sulfometuron Methyl+1%

Promazine Sulfometuron Methyl 25%

Metamifop 1%

Methyl naphthalene sulfonate formaldehyde condensate 10%

Bentonite 1%

Glycerine 5%

Soybean oil complements to 100%

The each components such as active component, dispersant, wetting agent and corn oil are well mixed according to the ratio of formula, it is ground And/or the metamifop oil-suspending agent of 25% promazine Sulfometuron Methyl+1% is obtained after high speed shear.

The metamifop wettable powder of 2 10 % promazines Sulfometuron Methyl of embodiment+2%

Promazine Sulfometuron Methyl 10%

Metamifop 2%

Lauryl sodium sulfate 10%

Sodium lignin sulfonate 5%

Kaolin complements to 100%

By active component, various auxiliary agents and filler etc. by formula proportional components mix, through ultra-fine pulverizer disintegrating after, i.e., Obtain the metamifop wettable powder of 10% promazine Sulfometuron Methyl+2%.

The metamifop wettable powder of 3 1% promazine Sulfometuron Methyl of embodiment+50%

Promazine Sulfometuron Methyl 1%

Metamifop 50%

Calcium dodecyl benzene sulfonate 1%

Sodium lignin sulfonate 2%

White carbon supply is to 100%

By active component, various auxiliary agents and filler etc. by formula proportional components mix, through ultra-fine pulverizer disintegrating after, i.e., Obtain the metamifop wettable powder of 1% promazine Sulfometuron Methyl+50%.

The metamifop water dispersible granules of 4 0.1% promazine Sulfometuron Methyl of embodiment+1%

Promazine Sulfometuron Methyl 0.1%

Metamifop 1%

Sodium lignin sulfonate 4%

Lauryl sodium sulfate 5%

Urea 5%

Kaolin complements to 100%

Active component, dispersant, wetting agent, disintegrant and filler are well mixed in the ratio of formula, by air-flow powder Wettable powder is broken into, a certain amount of water mixing extruding is added and is made material.0.1% promazine Sulfometuron Methyl+1% is obtained after drying screening Metamifop water dispersible granules.

The metamifop missible oil of 5 5% promazine Sulfometuron Methyl of embodiment+0.1%

Promazine Sulfometuron Methyl 5%

Metamifop 0.1%

Ethoxylated castor oil 5%

Calcium dodecyl benzene sulfonate 3%

1-METHYLPYRROLIDONE complements to 100%

Mentioned component is proportionally prepared, homogeneous phase is uniformly mixing to obtain.

The metamifop of 6 10% promazine Sulfometuron Methyl of embodiment+0.1% oil suspension emulsion

Promazine Sulfometuron Methyl 10%

Metamifop 0.1%

Methyl naphthalene sulfonate formaldehyde condensate 5%

Ethoxylated castor oil 3%

Bentonite 1%

Aromatic solvent 100 20%

Soybean oil complements to 100%

By promazine Sulfometuron Methyl, methyl naphthalene sulfonate formaldehyde condensate be ground and/or high speed shear after obtain the phonetic sulphur of promazine Grand oil-suspending agent；Jiang metamifop, aromatic solvent 100, ethoxylated castor oil mixing and stirring get Dao metamifop Missible oil；Get Dao metamifop missible oil is added in promazine Sulfometuron Methyl oil-suspending agent, obtain 10% promazine Sulfometuron Methyl+ 0.1% metamifop suspension emulsion.

The metamifop wettable powder of 7 25% promazine Sulfometuron Methyl of embodiment+1%

Promazine Sulfometuron Methyl 25%

Metamifop 1%

Lauryl sodium sulfate 10%

Sodium lignin sulfonate 5%

White carbon 10%

Kaolin complements to 100%

Said components are mixed in proportion, and ground, crushed, be prepared into wettable powder.

The metamifop water dispersible granules of 8 40% promazine Sulfometuron Methyl of embodiment+4%

Promazine Sulfometuron Methyl 40%

Metamifop 4%

MODIFIED LIGNOSULPHONATE 5%

Lauryl sodium sulfate 5%

Urea 5%

Kaolin complements to 100%

Promazine Sulfometuron Methyl active component, dispersant, wetting agent, disintegrant and filler are well mixed in the ratio of formula, By air-flow crushing into wettable powder；Jia Ru metamifops are well mixed again；A certain amount of water mixing extruding is added to make Material.The metamifop water dispersible granules of 40% promazine Sulfometuron Methyl+4% are obtained after drying screening.

The metamifop suspension emulsion of 9 2% promazine Sulfometuron Methyl of embodiment+50%

Oil phase：

Promazine Sulfometuron Methyl 2%

1-METHYLPYRROLIDONE 10%

Ethoxylated castor oil 5%

Water phase：

Metamifop 50%

MODIFIED LIGNOSULPHONATE 1%

Water complements to 100%

Jiang in metamifop is dissolved in 1-METHYLPYRROLIDONE, ethoxylated castor oil is added to obtain oil phase；According to matching somebody with somebody Promazine Sulfometuron Methyl, MODIFIED LIGNOSULPHONATE and water, sand milling are obtained the water in suspension phase of promazine Sulfometuron Methyl by side；Under agitation will Oil phase adds water mutually to obtain suspension emulsion.

The metamifop wettable powder of 10 10% promazine Sulfometuron Methyl of embodiment+10%

Promazine Sulfometuron Methyl 10%

Metamifop 10%

Sodium lignin sulfonate 1%

NaLS 2%

The silicic acid 1% of high degree of dispersion

Kaolin complements to 100%

Said components are mixed in proportion, and ground, crushed, be prepared into wettable powder.

The metamifop coated granule of 11 1% promazine Sulfometuron Methyl of embodiment+25%

Promazine Sulfometuron Methyl 1%

Metamifop 25%

Polyethylene glycol 3%

Calcium carbonate complements to 100%

In a mixer, by levigate active component even spread to the carrier soaked by polyethylene glycol.In this way Dust-free coated granules agent can be obtained.

The metamifop wettable powder of 12 1% promazine Sulfometuron Methyl of embodiment+5%

Promazine Sulfometuron Methyl 1%

Metamifop 5%

Lauryl sodium sulfate 1%

Sodium lignin sulfonate 1%

White Carbon black complements to 100%

Said components are mixed in proportion, and ground, crushed, be prepared into wettable powder.

The metamifop of 13 5% promazine Sulfometuron Methyl of embodiment+5% extrudes granule

Promazine Sulfometuron Methyl 20%

Metamifop 10%

Sodium lignin sulfonate 4%

Carboxymethylcellulose calcium 2%

Kaolin complements to 100%

Active component is mixed and ground with auxiliary agent, mixture is soaked with water.By mixture extrusion, then in air stream Middle drying.

The metamifop microcapsule suspension-suspendinagent agent of 14 0.1% promazine Sulfometuron Methyl of embodiment+10%

ATLOX ^TM4913 4%

Citric acid 0.05%

Catalyst 0.1%

Water 13%

Metamifop 10%

PAPI 1.35%

SOLVESSO ^TM200 10%

ATLOX ^TM4913 16%

Dispersant LFH 0.3%

Defoamer 0.16%

Urea 8.4%

Promazine Sulfometuron Methyl 0.1%

Water complements to 100%

By poly methylene poly phenyl poly isocyanate（PAPI）, metamifops, SOLVESSO^TM200 oil phases for being formed add Enter containing ATLOX ^TMIn 4913 aqueous solution, emulsion is formed.Then heat and be incubated 50^oAdd catalyst reaction 2 small under C When.Microcapsules of the get Dao metamifop after cooling.

ATLOX ^TM4913, dispersant LFH, defoamer, urea, promazine Sulfometuron Methyl and water are mixed in proportion, and are passed through It is sanded, is prepared into suspending agent.

0.1% the third will be uniformly mixing to obtain during get Dao metamifops microcapsules adds the suspending agent of promazine Sulfometuron Methyl The metamifop microcapsule suspension-suspendinagent agent of piperazine Sulfometuron Methyl+10%.

The metamifop suspended emulsion of 15 2% promazine Sulfometuron Methyl of embodiment+3%

Promazine Sulfometuron Methyl 2%

Metamifop 3%

SOLVESSO ^TM200 10%

Ethoxylated castor oil 4%

AEO sulfosuccinic acid monoesters disodium 5%

MODIFIED LIGNOSULPHONATE 5%

Xanthans 1%

Bentonite 1%

Glycerine 5%

Water complements to 100%

Metamifop is dissolved in SOLVESSO^TMIn 200, ethoxylated castor oil, get is added to Dao metamifop Missible oil；

Promazine Sulfometuron Methyl, AEO sulfosuccinic acid monoesters disodium, above-mentioned each component are mixed in proportion Uniformly, and through being sanded, it is prepared into suspending agent.

The oil phase of Han metamifops is added in the suspending agent containing promazine Sulfometuron Methyl, suspended emulsion is obtained.

The metamifop missible oil of 16 2% promazine Sulfometuron Methyl of embodiment+10%

Promazine Sulfometuron Methyl 2%

Metamifop 10%

Ethoxylated castor oil 5%

Calcium dodecyl benzene sulfonate 3%

SOLVESSO ^TM200 complement to 100%

Above-mentioned each component is mixed, stirring is to obtaining transparent homogeneous phase.

The metamifop suspending agent of 17 20% promazine Sulfometuron Methyl of embodiment+40%

Promazine Sulfometuron Methyl 20%

Metamifop 40

AEO sulfosuccinic acid monoesters disodium 10%

MODIFIED LIGNOSULPHONATE 5%

Xanthans 1%

Bentonite 1%

Glycerine 5%

Water complements to 100%

Each component is mixed in proportion, and through being sanded, is prepared into suspending agent.

The metamifop wettable powder of 18 40% promazine Sulfometuron Methyl of embodiment+50%

Promazine Sulfometuron Methyl 40%

Metamifop 50%

Sodium lignin sulfonate 1%

NaLS 2%

Kaolin complements to 100%

Said components are mixed in proportion, and ground, crushed, be prepared into wettable powder.

The metamifop water dispersible granules of 19 20% promazine Sulfometuron Methyl of embodiment+60%

Promazine Sulfometuron Methyl 20%

Metamifop 60%

MODIFIED LIGNOSULPHONATE 5%

Lauryl sodium sulfate 5%

Urea 5%

Kaolin complements to 100%

Active component, dispersant, wetting agent and filler are well mixed in the ratio of formula, by air-flow crushing into wettable Property pulvis；Add a certain amount of water mixing extruding and make material.The oxazole acyl of 20% promazine Sulfometuron Methyl+60% grass is obtained after drying screening Aqueous amine dispersible granule.

The metamifop of 20 20% promazine Sulfometuron Methyl of embodiment+80%

Promazine Sulfometuron Methyl 20%

Metamifop 80%

Promazine Sulfometuron Methyl, metamifops are proportionally well mixed.

The mefenpyrdiethyl of+60% metamifop of 21 20% promazine Sulfometuron Methyl of embodiment+20%

Promazine Sulfometuron Methyl 20%

Metamifop 60%

Mefenpyrdiethyl 20%

Promazine Sulfometuron Methyl, metamifops, mefenpyrdiethyl are proportionally well mixed.

Proportioning is weight per distribution ratio in above example.

Biological Examples

Pre-emergence test：

Under greenhouse experiment, test plant is seeded in seedling alms bowl.Using standard soil as cultivation matrix.The rank before bud Section, soil surface individually or is in combination administered to by herbicide.It is true that consumption depends on the institute under field or greenhouse experiment Fixed optium concentration.In the experiment of post-evaluation in 2 ~ 4 weeks（100% effect=plant is completely dead；0% effect=plant-less toxicity is acted on）. The combination of promazine Sulfometuron Methyl and metamifop in this test is shown than more preferable preventive effect is administered alone, and display is obvious Synergistic effect.

When herbicide of the invention before rudiment when applying, can entirely prevent that weeds emerge or weed growth is right to cotyledon period After stop growing and by completely dead after 3 ~ 4 weeks.

Acted on after the bud of weeding

Method

Unifacial leaf and dicotyledonous harmful plants and rice paddy seed or rhizome are placed in the peat basin equipped with sandy loam (straight Footpath 4cm) in, then covered with soil.Peat basin under optimum condition in greenhouse is maintained at.Additionally, will be run into rice cultivating Noxious plant cultivate in peat basin, and make water surface 2cm higher than soil surface.

Cultivation start after about 4 weeks, in the 2 leaf phases to 4 leaf phase process test plants.In order to further cultivate plant, then Peat basin is maintained in greenhouse under optimum condition.Three kinds of reagents are prepared according to constant weight percentage：1st, the phonetic sulphur of promazine It is grand；2nd, metamifop；3rd, the metamifop of promazine Sulfometuron Methyl+.Afterwards by above-mentioned each reagent dilute with water, medicament dilution is obtained Liquid.

The visual score of herbicidal effect is carried out under being up to the time interval of 21 days after the treatment.Scoring be with do not locate The percentage that the check plant of reason is compared is carried out.0%=without activity of weeding, the complete activity of weeding of 100%==kill completely Extremely.

When the effect of active compound combinations exceedes the summation of the effect when each reactive compound is administered alone, deposit In synergistic function.The predictive role of two kinds of particular combinations of reactive compound can be used so-called " Colby formula " (ginseng See S.R. Colby, " Calculating Synergistic and Antagonistic Responses of Herbicide Combinations ", Weeds 1967,15,20-22) calculate:

E=A+B- (A × B/100)

Herein：

A, B=component I and II respectively dosage be a g ai/ha (=g active materials/hectare) and b g ai/ha when with The activity of percentages.

Desired values of the E=when dosage is a+b g ai/ha in percentage.

As a result

The composition of herbicide (I) of the invention and (II) is respectively for the important noxious plant (standing grain of following wide spectrum Undergraduate course weeds, broad leaved weed, sedge) and useful plant tested：Moleplant seed（Leptochloachinensis）、 Chickweed (Stellaria media), Amaranthus retroflexus (Amaranthus retroflexus), green bristlegrass (Setaria viridis), Volume stem smartweed (Fallopia (ex Polygonum) Convolvulus), barnyard grass (Echinochloa crusgalli), piemarker (Abuthilon theophrasti), paddy rice (Oryza sativa), angustifolia arrowhead herb（Sagittariatrifolia）, rhizoma alismatis （Oriental Waterplantain Rhizome）, Monochoria vaginalis（Herb of Pygmy Arrowhead）, Monochoria korsakowii （Monochoria korsakowii）, Procumbent Falsepimpernel（Lindernia procumbens）, firefly Lin（Scirpus juncoides Roxb）, difformed galingale herb（Cyperus difformis L.）.

To the preventive effect of barnyard grass (Echinochloa crusgalli)

To moleplant seed (（Leptochloachinensis）) preventive effect

To Monochoria vaginalis（Herb of Pygmy Arrowhead）Preventive effect

To firefly Lin（Scirpus juncoides Roxb）Preventive effect

To difformed galingale herb（Cyperus difformis L）Preventive effect

The combination of promazine Sulfometuron Methyl He metamifop is being prevented and kill off other grass family, broad-leaved section, is also being shown on sedge weed Obvious synergistic effect is shown.According to result of the test as can be seen that the Herbicidal combinations of the metamifop of promazine Sulfometuron Methyl+are removed Careless effect substantially relatively individually uses promazine Sulfometuron Methyl Huo person metamifop more preferably, possesses obvious gain effect, and make low Activity of weeding higher is kept under the active ingredient of consumption；In re-compounded binary herbicide of the invention, due to promazine Sulfometuron Methyl In the presence of, it effectively ensure that preventing and kill off to the weeds of the anti-sulfonylurea herbicide in current part, additionally, two kinds of herbicidal constituents compared with For any of which composition is administered alone, with wider array of herbicide controlling spectrum, and this composition possesses the spy of low toxicity, low-residual Property, the preventive effect to weeds in crop growth environment is obviously improved, and reduce the infringement to crop plants.

Safety effect

Under greenhouse experiment, test plant is grown to the 4- leaf phases in plastic tank.It is in this stage, single promazine is phonetic Sulphur is grand, the composition of promazine Sulfometuron Methyl and safener, and promazine Sulfometuron Methyl is He metamifop or promazine Sulfometuron Methyl are He oxazole Acyl grass amine and the material mixture together tested as safener are administered to test plant.Use the aqueous solution of test substances It is administered.After using 3 weeks, evaluation herbicide is measured to crop such as rice crops toxicity using percentage.100% represents that experiment is planted Thing is completely dead, and 0% represents plant-less toxicity effect.

It has been had been surprisingly found that, specific safener mixes suitable for Herbicidal combinations of the invention.Therefore, the invention further relates to A kind of selective herbicidal composition of the weeds prevented and kill off for selectivity in useful plants particularly rice crops, said composition contains Promazine Sulfometuron Methyl, metamifops, and selected from the safety such as foregoing benoxacor, fenclorim, dichlormide, mefenpyrdiethyl Agent, said composition can protect useful plants（Rather than weeds）From the phytotoxic effects of herbicide, the composition is further related to The application of the weeds in useful plants crop is prevented and kill off.

Claims (14)

1. a kind of Herbicidal combinations, it is characterised in that comprising active component（I) and（II), wherein

（I it is) by formula（I) the compound of description：

And（II it is) by formula（II) the compound of description：

The active component（I) with（II weight ratio)（I)∶（II it is) 100: 1 to 1：100.

2. Herbicidal combinations according to claim 1, it is characterised in that active component（I) with（II weight ratio)（I)∶ （II it is) 50: 1 to 1：50.

3. Herbicidal combinations according to claim 1, it is characterised in that active component（I) with（II weight ratio)（I)∶ （II it is) 25: 1 to 1：25.

4. Herbicidal combinations according to claim 1, it is characterised in that active component（I) with（II weight ratio)（I)∶ （II it is) 10: 1 to 1：10.

5. Herbicidal combinations according to claim 1, it is characterised in that active component（I) with（II weight ratio)（I)∶ （II it is) 5: 1 to 1：5.

6. Herbicidal combinations according to claim 1, it is characterised in that comprising active component（I) and（II), filler And/or surfactant.

7. Herbicidal combinations according to claim 1, it is characterised in that：The Herbicidal combinations also include safener, peace Full agent is selected from benoxacor, fenclorim, dichlormide, mefenpyrdiethyl, wherein the safener relative to promazine Sulfometuron Methyl and The weight proportion of the active component of metamifop is 1:100 to 20:1.

8. Herbicidal combinations according to claim 1, it is characterised in that formulation be wettable powder, missible oil, suspending agent, Microcapsules, microemulsion, aqueous emulsion, suspension emulsion, water dispersible granules, microcapsule suspension-suspendinagent agent, ultra low volume liquids.

9. Herbicidal combinations according to claim 1, it is characterised in that active component（I) and（II content) accounts for described The 5%-90% of Herbicidal combinations.

10. Herbicidal combinations according to claim 1, it is characterised in that active component（I) and（II content) accounts for described The 10%-80% of Herbicidal combinations.

11. Herbicidal combinations according to claim 1, it is characterised in that active component（I) and（II content) accounts for described The 20%-60% of Herbicidal combinations.

The application of Herbicidal combinations described in 12. claims 1 on undesirable plant is prevented and kill off.

The application of Herbicidal combinations described in 13. claims 1 on monocotyledon weed, broadleaf weed is prevented and kill off.

Herbicidal combinations described in 14. claims 1 prevent and kill off wheat, corn and soybean, sugar beet, sugarcane, cotton, paddy rice, In flax, barley, oat, rye, triticale, rape, potato, broomcorn millet, herbage, greenery patches or lawn, it is in fruit plantation or non- The application of unifacial leaf, broadleaf weed in crop area.