CN101272687B - Herbicidal composition - Google Patents

Abstract

Many herbicidal compositions have been developed and practically used. However, types of weeds to be controlled are also many, and their emergence extends over a long period. Accordingly, it is desired that a herbicidal composition be developed which has a wider herbicidal spectrum and which is highly active and has a long lasting effect. As a result of a research to solve such problems, the present inventors have found it possible to obtain a highly practical herbicidal composition by a combined use of (A) 2-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-N, N-dimethylnicotinamide or salt thereof and (B) N<2>-tert-butyl-6-chloro-N<4>-ethyl-1,3,5-triazine-2,4-diamine or salt thereof, and thus have accomplished the present invention.

Description

Herbicidal combinations

Technical field

The present invention relates to a kind of Herbicidal combinations, it contains (A) 2-(4,6-dimethoxypyridin-2-base carbamoyl sulfamoyl)-N, N-dimethyl nicotinamide or its salt (hereinafter referred is a compd A) and (B) N ²-the tert-butyl group-6-chloro-N ⁴-ethyl-1,3,5-triazines-2,4-diamino or its salt (hereinafter referred is a compd B).

Background technology

Patent documentation 1 discloses compd A, but does not disclose itself and being used in combination of compd B.

Patent documentation 1:EP0232067A

Summary of the invention

The problem to be solved in the present invention

Developed and used in practice multiple Herbicidal combinations.But the grass that need control also has multiple, and their exist in long-time.Therefore, it is desirable to develop have broad spectrum weeding function, high activity and long-acting Herbicidal combinations.

The mode of dealing with problems

In order to address the above problem, the inventor studies, and found that to obtain highly practical Herbicidal combinations.

That is, the invention provides a kind of Herbicidal combinations, it contains (A) compd A, i.e. 2-(4,6-dimethoxypyridin-2-base carbamoyl sulfamoyl)-N, the N-dimethyl nicotinamide (common first names: nicosulfuron) or its salt and (B) compd B, that is, and N ²-the tert-butyl group-6-chloro-N ⁴-ethyl-1,3,5-triazines-2, Garagard) or its salt 4-diamino or its salt (common first names:.

In addition, the present invention also provides a kind of method of controlling unacceptable plant or suppressing their growths, comprises unacceptable plant or their growth place is used the described Herbicidal combinations of herbicidally effective amount.

In addition, the present invention also provides a kind of method of controlling unacceptable plant or suppressing their growths, comprises unacceptable plant or their growth place is used the compd A and the B of herbicidally effective amount.

Summary of the invention

Herbicidal combinations of the present invention, the Herbicidal combinations that promptly contains compd A and B can be controlled multiple grass in arable land and uncultivated area appearance, and unexpectedly show collaborative herbicidal effect, that is, its herbicidal effect be better than active component separately herbicidal effect simply add and.Use this Herbicidal combinations of the present invention, not only can use, and enlarge the weeding scope, and herbicidal effect is with last very long with the low dosage of comparing with the situation of using each active component respectively.

If activity of weeding is higher than these two kinds of active components simple and (activity of expection) of activity of weeding separately when two kinds of active components are used in combination, then be called synergistic effect.Expection activity that can two kinds of active components of following calculations incorporated (Colby S.R., " Weed ", the 15th volume, 20-22 page or leaf, 1967).

E＝α+β-(α×β÷100)

Wherein,

α: the growth inhibition ratio when the weed killer herbicide X of usefulness x (g/a) handles,

β: the growth inhibition ratio when the weed killer herbicide Y of usefulness y (g/a) handles,

E: the growth inhibition ratio when the weed killer herbicide X of usefulness x (g/a) and the weed killer herbicide Y of y (g/a) handle.

That is,, just can think by having shown synergistic effect in conjunction with the activity that produces when the growth inhibition ratio (observed value) of reality during greater than the growth inhibition ratio (desired value) that obtains by aforementioned calculation.When calculating by following formula, Herbicidal combinations of the present invention has shown synergistic effect.

Preferred forms of the present invention

The salt that is included among compd A or the B can be any salt, need only it and can accept in agricultural, and it can be that for example, alkali metal salt is as sodium salt or sylvite; Alkali salt is as magnesium salts or calcium salt; Ammonium salt is as monomethyl ammonium salt, dimethyl ammonium or triethyl ammonium salt; Inorganic acid salt, example hydrochloric acid salt, perchlorate, sulphate or nitrate; Or organic acid salt, as acetate or mesylate.

As compd A,, can obtain to have the compound of different crystal form sometimes according to creating conditions.The present invention includes all these compounds, and it also comprises the compound that makes these compound hydrations.

In the present invention, the mixing ratio of compd A and compd B changes according to different condition (for example type and the growth conditions of prescription, weather conditions, the controlled plant of need), and must not make sweeping generalizations.But for example, for the compd A of per 1 weight portion, the amount of compd B can be 0.5 to 1,000 weight portion, preferred 0.5 to 600 weight portion, more preferably 0.5 to 500 weight portion, preferred especially 1 to 250 weight portion.

The present invention includes Herbicidal combinations with above-mentioned mixing ratio and control unacceptable plant or suppress their the growth method, this method comprises the described Herbicidal combinations of using herbicidally effective amount.In it is used, can select as required this unacceptable plant is used or (before this unacceptable plant occurs or after occurring) used in the place of their growths.

The amount of application of Herbicidal combinations of the present invention must not make sweeping generalizations, because it changes along with different condition (as the mixing ratio of compd A and B, prescription, weather conditions, need type and the growth conditions of controlled plant).But compd A is generally 1 to 200g/ha, and preferred 2.5 to 100g/ha, and compd B is generally 100 to 5, and 000g/ha is preferred 200 to 2,500g/ha.Suitable total amount of application of compd A and B is generally 101 to 5, and 200g/ha is preferred 202.5 to 2,600g/ha.

The present invention includes the unacceptable plant of control or suppress the method that their are grown, this method comprises with above difference described amount of application administered compound A and chemical combination B, perhaps uses them with above-mentioned suitable total amount of application.When using, can select as required to use or use (before or after these unacceptable plants occur) to the place of their growths to unacceptable plant.

Herbicidal combinations of the present invention can be controlled multiple unacceptable plant, for example annual weed and perennial weed with low dosage.Described unacceptable plant comprises grassy weed (or grass family), as barnyard grass ( Echinochloa Crus-galliL.), lady's-grass ( Digitaria SanguinalisL.), green foxtail ( Setaria ViridisL.), the French green foxtail ( Setaria FaberiHerrm.), eleusine indica ( Eleusine IndicaL.), wild oat ( Avena FatuaL.), stone thatch Chinese sorghum ( Sorghum HalepenseL.), couchgrass ( Agropyron RepensL.), arm shape grass ( Brachiaria Plantaginea), purple broomcorn millet grass ( Panicum Purpurascens), moleplant seed ( Leptochloa Chinensis), nit grass ( Leptochloa Panicea), annual bluegrass ( Poa AnnuaL.), big fringe amur foxtail ( Alopecurus MyosuroidesHuds.) and roegneria kamoji ( Agropyron Tsukushiense(Honda) Ohwi), sedge weed (or sedge family), as cyperus iria ( Cyperus IriaL.), the rhizome of nutgrass flatsedge ( Cyperus RotundusL.), earth almona ( Cyperus EsculentusL.), Herba Cyperi Glomerati ( Cyperus Serotinus), difformed galingale herb ( Cyperus Difformis), and broadleaved herb, for example piemarker ( Abutilon TheophrastiMEDIC.), Pharbitis purpurea flower ( Ipomoea PurpureaL.), lamb's-quarters ( Chenopodium AlbumL.), sting golden Portulaca grandiflora ( Sida SpinosaL.), common kitchen garden ( Portulaca OleraceaL.), wrinkle fruit amaranth ( Amaranthus ViridisL.), lack luxuriant Amaranthus retroflexus ( Amaranthus RetroflexusL.), Cassia tora ( Cassia ObtusifoliaL.), black nightshade ( Solanum NigrumL.), pale persicaria ( Polygonum LapathifoliumL.), common chickweed ( Stellaria MediaL.), waterwort ( Elatine TriandraSchk.), Noogoora burr ( Xanthium StrumariumL.), the knuckle-tooth Hairy Bittercress ( Cardamine FlexuosaWITH.), benbie ( Lamium AmplexicauleL.), artemisiifolia ( Ambrosia ElatiorL.), clearvers ( Galium SpuriumL.), field bindweed ( Calystegia ArvensisL.), datura ( Datura Stramonium), chrysanthemum ( Breea Setosa(BIEB.) KITAM.) and acalypha copperleaf ( Acalypha AustralisL.).In addition, when the stage before careless rudiment or stage afterwards used, Herbicidal combinations of the present invention can both provide good effect.

Herbicidal combinations of the present invention can be taked multiple administration form, for example soil application, foliar application, irrigation are used with water and are used, and can be used for controlling unacceptable plant in farmland (as highland, orchard or rice field) and the non-agricultural land (as embankment, fallow land, sports ground, vacant lot, forest, factory site and railway limit and roadside).

In addition, as long as can reach target of the present invention, composition of the present invention can also comprise the composition of another activity of weeding except that above-mentioned active component, thereby can improve the opportunity of using of for example activity of weeding, weed killer herbicide sometimes or need the scope of controlled grass.Described another herbicidal active component comprises, for example, and following compound (common name comprises those or the exploitation code of applying for the ISO approval).Even without specifically mentioning, has salt, Arrcostab or during such as the various constitutional isomer of optical isomer, they are also all included certainly at this compounds.

(1) is considered to show those of herbicidal effect by the hormonal activity that disturbs plant, as the phenoxy group class, as 2,4-D, 2,4-DB, 2,4-DP, MCPA, MCPB, MCPP or naproanilide, aromatic carboxylic acid's class is as 2,3,6-TBA, dicamba, dichlobenil, picloram, triclopyr, morpholine acid dichloride picoline or chloro amido pyridine acid, and other, fixed as quinclorac, benazolin, dichloro quinolinic acid, quinmerac, diflufenzopyr and thiophene grass.

(2) be considered to show those of herbicidal effect by suppressing photosynthesis of plants, as ureas, as chlortoluron, diuron, fluometuron, lorox, isoproturon, grand or the Metribuzin of chroman, triazines, as Simanex, atrazine, atraton, symetryne, prometryn, penta grass is clean, hexazinone, the piperazine humulone, Garagard, cyanazine, ametryn, cybutryne, phenoxy propylamine Tianjin or propazine, uracil, as bromacil, lenacil or terbacil, anilide, as Stam F-34 or encircle the third careless amine, carbamates, as swep, different phenmedipham or phenmedipham, the hydroxyphenyl cyanide class is as Brominal, bromoxynil octanoate or ioxynil, and other, as pyridate, bentazone, amicarbazone and methazole.

(3) quaternary ammonium salt, as paraquat or diquat, it is considered to this and changes into free radical to generate active oxygen in plant corpus.

(4) be considered to the biosynthesis by suppressing plant chlorophyll and make photosensitive peroxidating material in plant corpus, accumulate those that show herbicidal effect unusually, as diphenylether, as nitrofen, chlomethoxyfen, bifenox, acifluorfen, Fomesafen, Oxyfluorfen, lactofen or ethoxyfenethyl ethyl ester, the cyclic imides class, as chlorphthalim, flumioxazin, acid imide phenoxy acetic acid pentyl ester or reach careless fluorine, and other, as Que Bing oxazole grass, Lonster, sulfentrazone, fluorine ketazolam grass, thiadiazoles amine Wu oxazole grass, azoles pyridine alkynes grass, fluorine bromine azoles ester, the fluorine carfentrazone, benzfendizone, butafenacil, chroman is grand, cinidon-ethyl, amine grass azoles, fluazolate, profluazol, pyrachlonil, flufenpyrethyl and bencarbazone.

(5) be considered to generate that to show with the whitening action be those of herbicidal effect of feature by the plant pigment that suppresses carotenoid and so on, as pyridazinone, as monometflurazone, Pynamin or metflurazon, pyrazoles, as pyrazolate, pyrazoxyfen, benzofenap, topramezone (BAS-670H) or pyrasulfotole, and other, as Amrol, the fluorine grass together, flurtamone, Diflufenican, Kayaphenone, clomazone, the sulphur humulone, mesotrione, AVH-301 isoxazole humulone, benzene opposes fast Yi Evil chlorine humulone, benzobicylon, fluorine pyrrole acyl grass amine and beflubutamid.

(6) gramineous plants is shown those of strong specificity herbicidal effect, as aryloxy group phenoxy propionic acid class, as diclofop-methyl, flamprop methyl ester, pyriphenop-sodium, fluazifop, the spirit of pyrrole fluorine chlorine standing grain, quizalofop-ethyl, cyhalofop-butyl, oxazole diclofop-methyl or metamifop-propyl, and cyclohexyl diketone, as alloxydimsodium, clethodim, sethoxydim, tralkoxydim, fourth oxygen cyclic ketones, tepraloxydim, caloxydim, AC322140 or clefoxidim.

(7) be considered to synthesize those that show herbicidal effect by the amino acid bio that suppresses plant; as sulfonylurea; as chlorimuronethyl; sulfometuronmethyl; fluorine chlorine sulphur is grand; bensulfuron-methyl; chlorine sulphur is grand; metsulfuron-methyl; cinosulfuron; pyrazosulfuron; azimsulfuron; flazasulfuron; rimsulfuron 25; imazosulfuron; AC322140; prosulfuron; flupyrsulfuron-methyl-sodium; triflusulfuronmethyl; halosulfuronmethyl; thifensulfuronmethyl; ethoxysulfuron; oxasulfuron; ethametsulfuron; iodine sulphur is grand; Sulfosulfuron; triasulfuron; tribenuron-methyl; tritosulfuron; foramsulfuron; trifloxysulfuron; isosulfuron-methyl; methyl two sulphurs are grand; sulfonylureas; mesosulfuronmethyl; grand or the amidosulfuron of phonetic aniline sulphur; the TH-547 of the disclosed compound of WO2005092104; triazolopyrimidine sulfonamides; as the fluorine ethofumesate; azoles grass sulfanilamide (SN); the phonetic sulfanilamide (SN) of azoles; cloransulammethyl; florasulam; metosulfam or penoxsuam; imidazolone type; as the weed eradication cigarette; Imazethapyr; the weed eradication quinoline; imazamox; miaow cigarette azoles grass; miaow grass ester or AC 263222; the pyrimidine radicals salicylic acid; as pyrithiobac-sodium; two KIH 6127; KIH 6127; pyribenzoxim; pyriftalid or pyrimisulfan (KUH-021); the sulfonyl amino carbonyl triazolineone; as flucarbazonesodium or procarbazone; and other, as glyphosate; ammonium glyphosate; glyphosate isopropyl amine; sulphosate; glufosinate; grass ammonium phosphine and bilanafos.

(8) be considered to show those of herbicidal effect by suppressing plant cell mitosis, as dinitroaniline, as trefanocide, oryzalin, nitralin, pendimethalin, the fourth fluchloralin, benfluralin or prodiamine, amide-type, as bensulide, proproanmide or pronamide, organic phosphates, as amiprophos-methyl, butamifos, anilofos or piperophos, the carbanilate class, as propham, chlorpropham or oatax, the cumenyl amine is as daimuron, cumyluron or bromobutide, and other, as asulam, dithiopyr, thiazopyr, cafenstrole and indanofan.

(9) be considered to the protein biosynthesis by suppressing plant or the lipid biosynthesis shows herbicidal effect those, as chloroacetyl amine, as alachlor, herbicide amine, butachlor, the third careless amine, isopropyl methoxalamine, S-isopropyl methoxalamine, P DimethenamidP, pethoxamid, Acetochlor, propachlor or propisochlor, carbamates, as molinate, dimepiperate or pyributicarb, and other, as ethobenzanid, mefenacet, flufenacet, tridiphane, fentrazamide, oxazine humulone, dimethenamid and benfuresate.

(10) thiocarbamates, as EPTC, butylate, vernolate, pebulate, cycloate, weed eradication fear, esprocarb, benthiocarb, Avadex or triallate, and other, as MSMA, DSMA, endothal, ethofumesate, sodium chlorate, n-nonanoic acid, kill wooden phosphorus, pinoxaden and HOK-201.

(11) be considered to by colonizing in those that show herbicidal effect on the plant, as the sarson Xanthomonas campestris ( Xanthomonas Campestris), Epicoccosurus Nematosurus, Exserohilum MonoserasWith Drechsrela Monoceras

Herbicidal combinations of the present invention can be according to the compound method commonly used that is used for the agrochemicals agent, prepare by mixing as the compd A of active component and compd B and different additive, and can use by different dosage forms for example pulvis, granule, the dispersible granule of water, wettable powder, tablet, ball, capsule (comprising preparation), water base suspension, oil-based suspension, microemulsion, suspended emulsion, water soluble powder, emulsible concentrate, soluble concentrate or paste by the encapsulation of water soluble film.Can be made into any preparation commonly used, as long as realized target of the present invention in this field.

When preparation, compd A and compd B can be mixed to prepare, maybe they can be prepared respectively and when using, mix.

The additive that is used to prepare comprises, for example, solid carrier, for example, the mixture of diatomite, white lime, calcium carbonate, talcum, white carbon, kaolin, bentonite, kaolinite and sericite, clay, sodium carbonate, sodium bicarbonate, saltcake, zeolite or starch; Solvent, for example water, toluene, dimethylbenzene, solvent naphtha, diox, acetone, isophorone, methyl iso-butyl ketone (MIBK), chlorobenzene, cyclohexane, methyl-sulfoxide, N, dinethylformamide, dimethylacetylamide, N-N-methyl-2-2-pyrrolidone N-or alcohol; Anionic surfactant, for example soap, benzoate, the multi-carboxylate, the salt of alkyl sulfate, alkyl sulfate, alkaryl sulphate, alkyl biphenyl sulphate, the salt of alcohol sulfuric ester, alkylsulfonate, alkylaryl sulfonate, arylsulphonate, lignosulphonates, alkyl diphenyl base ether disulfonate, poly styrene sulfonate, the salt of alkyl phosphate, alkaryl phosphate, the styryl aryl orthophosphate, the salt of polyoxyethylene alkyl ether sulfuric ester, the polyoxyethylene alkyl aryl ether sulfate, the salt of polyoxyethylene alkyl aryl ether sulfuric ester, polyoxyethylene alkyl ether phosphate, the salt of polyoxyethylene alkyl aryl phosphate ester, naphthalene sulfonic acids with formaldehyde condensation, perhaps with the alkylnaphthalene sulfonate of formaldehyde condensation; Nonionic surface active agent, for example sorbitan fatty acid esters, fatty acid glyceride, fatty acid polyglycerol ester, fatty acid alcohol polyglycol ether, acetylene ethylene glycol, acetylene alcohol, oxyalkylene block polymer, polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene styryl aryl ether, polyoxyethylene glycol alkyl ether, polyethylene glycol, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene fatty acid glyceride, Crodaret or polyoxypropylene fatty acid ester; And vegetable oil or mineral oil, for example olive oil, kapok oil, castor oil, palm oil, camellia oil, cocoa butter, sesame oil, corn oil, rice bran oil, peanut oil, cottonseed oil, soya-bean oil, rapeseed oil, Linseed oil, tung oil or paraffin oil.Can suitably select these additives, be used in combination with independent use or with the form of its two or more mixture, as long as realize target of the present invention.In addition, can suitably select to use those additives outside the above-mentioned additive, known in the art.For example, can use multiple additives commonly used, for example filler, thickener, antisettling agent, antifreezing agent, dispersion stabilizer, safener, mould inhibitor, foaming agent, distintegrant and adhesive.In Herbicidal combinations of the present invention, the mixing ratio of active component and described multiple additives (with the weight agent) can be 0.001: 99.999 to 95: 5, preferred 0.005: 99.995 to 90: 10.

About using the method for Herbicidal combinations of the present invention, can use several different methods, and can suitably select to use according to different condition (for example using type or the growth conditions of place, prescription, the controlled plant of need).For example, can mention following method.

1. compd A and compd B are mixed with the preparation formulation, its former state is used.

2. compd A and compd B are mixed with the preparation formulation, with for example water it is diluted to predetermined concentration, and adds various additives (surfactant, vegetable oil, mineral wet goods) in case of necessity, use then.

3. prepare compd A and compd B respectively, and the time use like that by preparation.

4. prepare compd A and compd B respectively, and be diluted to predetermined concentration with for example water respectively, and add various additives (surfactant, vegetable oil, mineral wet goods) in case of necessity, use then.

5. prepare compd A and compd B respectively, they are being mixed when for example water is diluted to predetermined concentration with them then, and adding various additives (surfactant, vegetable oil, mineral wet goods) in case of necessity, use then.

Illustrate preferred implementations more of the present invention below.But the invention is not restricted to these embodiments.

(1) Herbicidal combinations contains 2-(4,6-dimethoxypyridin-2-base carbamoyl sulfamoyl)-N, N-dimethyl nicotinamide (hereinafter referred A-1) and N ²-the tert-butyl group-6-chloro-N ⁴-ethyl-1,3,5-triazines-2,4-diamino (hereinafter referred compd B-1); And control unacceptable plant or suppress the method for their growths, comprise unacceptable plant or their growth place is used this Herbicidal combinations of herbicidally effective amount.

(2) control unacceptable plant or suppress their the growth method, comprise to unacceptable plant or to their growth place and use the compd A-1 of herbicidally effective amount and the compd B-1 of herbicidally effective amount.

Embodiment

The formulation example of Herbicidal combinations of the present invention is described below, but the invention is not restricted to these formulation example.

Formulation example 1

(1) compd A-1 1 weight portion

(2) compd B-1 20 weight portion

(3) Supragil MNS/90 (with the Negel of formaldehyde condensation) 3 weight portions

(4) NEWKALGEN BX-C (dialkyl group sodium naphthalene sulfonate) 4 weight portions

(5) diatomite 72 weight portions

Above-mentioned each component is mixed, obtain wettable powder.

Formulation example 2

(1) compd A-1 1 weight portion

(2) compd B-1 40 weight portion

(3) Supragil MNS/90 8 weight portions

(4) Geropon T/36 (polycarboxylic acid sodium) 3 weight portions

(5) kaolin 48 weight portions

Above-mentioned each component is mixed, add entry then, knead then, extruding pelletization, drying and screening, with the dispersible granule of acquisition water.

Formulation example 3

(1) compd A-1 0.3 weight portion

(2) compd B-1 7.5 weight portion

(3) GERONOL VO/278 (fatty acid glyceride) 10 weight portions

(4) methyl esters 80.2 weight portions of vegetable oil

(5) New D Orben (bentonite-alkyl amino compound) 2 weight portions

Above-mentioned each component is evenly mixed, and, obtain suspension with Dyno barreling mill.

Illustrate:

Supragil MNS/90and Geropon T/36: trade name, Rhodia Nicca Co., Ltd makes.

NEWKALGEN BX-C: trade name, TAKEMOTO OIL AND FAT Co., Ltd makes.

GERONOL VO/278: trade name, Rhone-Poulenc makes.

New D Orben: trade name, Shiraishi Kogyo Kaisha Co., Ltd makes.

Test case 1

Upland soil is put into 1/1,000, in 000 hectare the jar, and the seed of sowing various plants.Then, when plant reach predetermined Ye Qishi ((1) lady's-grass ( Digitaria Sanguinalis3.6 leaf phases L.) and (2) piemarker ( Abutilon TheophrastiMEDIC.) the 2.8 leaf phases), dilute with the Herbicidal combinations of the water that is equivalent to 300L/ha, and carry out foliar application with miniaturised nebuliser with scheduled volume.After using the 21st day, the growth conditions of each plant of visualization, and in table 1 and 2, shown the growth inhibition ratio (%) estimated according to following evaluation criterion and the growth inhibition ratio (%) (predicted value) by above-mentioned Colby method calculating.

Growth inhibition ratio (%)=0% (equaling untreated zone) is to 100% (killing fully)

Table 1

Table 2

Test case 2

Upland soil is put into 1/1,000, in 000 hectare the jar, and the sowing piemarker ( Abutilon TheophrastiMEDIC.) seed.Then, when piemarker reaches 2.9 leaves during the phase, dilute with the Herbicidal combinations of the water that is equivalent to 300L/ha, and carry out foliar application with miniaturised nebuliser with scheduled volume.

After using the 21st day, visualization and to estimate the growth conditions of piemarker with the described identical mode of above-mentioned test case 1.The result is presented in the table 3.

Table 3

Test case 3

Upland soil is put into 1/1,000, in 000 hectare the jar, and the sowing piemarker ( Abutilon TheophrastiMEDIC.) seed.Then, when piemarker reaches 2.3 to 2.5 leaves during the phase, dilute with the Herbicidal combinations of the water that is equivalent to 300L/ha, and carry out foliar application with miniaturised nebuliser with scheduled volume.

After using the 14th day, visualization and to estimate the growth conditions of piemarker with the described identical mode of above-mentioned test case 1.The result is presented in the table 4.

Table 4

The full content of the Japanese patent application 2006-093026 that the Japanese patent application 2005-282988 that on September 25th, 2005 submitted to and on March 30th, 2006 submit to comprises specification, claim and summary, incorporates this paper fully by reference into.

Claims (3)

1. Herbicidal combinations contains (A) 2-(4,6-dimethoxypyridin-2-base carbamoyl sulfamoyl)-N, N-dimethyl nicotinamide or its salt and (B) N ²-the tert-butyl group-6-chloro-N ⁴-ethyl-1,3,5-triazines-2,4-diamino or its salt,

Wherein (A) is (B) of (A) corresponding 5 to 400 weight portions of per 1 weight portion with the mixing ratio of (B).

2. control unacceptable plant or suppress the method for their growths, comprise unacceptable plant or their growth place is used the Herbicidal combinations as claimed in claim 1 of herbicidally effective amount.

3. control unacceptable plant or suppress the method for their growths, comprise (B) as claimed in claim 1 of the herbicidally effective amount of (A) as claimed in claim 1 that use 5 to 50g/ha herbicidally effective amount to unacceptable plant or to their growth place and 250 to 2000g/ha.