CN109362751A - A kind of Herbicidal combinations of grass containing sulphonyl pyrazoles and florasulam - Google Patents

Abstract

The invention discloses the Herbicidal combinations of a kind of grass containing sulphonyl pyrazoles and florasulam, for the Herbicidal combinations using sulphonyl grass pyrazoles and florasulam as effective component, two active constituent weight ratios are 1~80:1~80.Further the composition can carry out being compounded into ternary herbicide with fluroxypyr, azoles humulone, mesosulfuron, clodinafop-propargyl, flucarbazone, a kind of of pyroxsulam.Application of the Herbicidal combinations of the present invention in wheat paddock postemergence weed control has many advantages, such as wide spectrum, quick-acting, efficient, less toxic, safety and environmental protection.

Description

A kind of Herbicidal combinations of grass containing sulphonyl pyrazoles and florasulam

Technical field

The invention belongs to technical field of pesticide, especially herbicide field, it is related to sulphonyl grass pyrazoles and florasulam Binary built agent.The herbicidal composition can be applied to wheat paddock postemergence weed control.

Background technique

Sulphonyl grass pyrazoles (pyrasulfotole), chemical name: (5- hydroxyl -1,3- dimethyl pyrazole -4- base) (α, α, The fluoro- 2- mesyl of α-three-p- tolyl) ketone.Sulphonyl grass pyrazoles is that Bayer Cropscience is new in one found in 1999 Type herbicide belongs to benzoylpyrazole class compound, is HPPD inhibitor.Since the inhibition to HPPD inhibits carotenoids indirectly As a result the biosynthesis of element causes plant meristem to generate alphosis, eventually leads to death.The herbicide is killed with wide spectrum It is careless active, it can be used after Miao Qian, seedling, prevent and kill off broadleaf weeds since sulfonylurea herbicide is used for a long time in wheatland, cause very much Resistance broadleaf weeds occurs, and rises to dominant population in some areas.The appearance of the product will well solve wheatland The problem of resistant weed.Main control object includes that the broad-leaveds such as herba stellariae mediae, Chenopodiaceae, black nightshade, amaranth, piemarker, spontaneous rape, tartary buckwheat are miscellaneous Grass.

Florasulam (Florasulam), chemical name: fluoro- 5- ethyoxyl -8- fluorine [1,2, the 4] triazole of 2', 6'- bis- [1,5-C] pyrimidine -2- sulfonanilide.Belong to triazolopyrimidine sulfonamides super-active herbicide, is prevented and kill off for wheat paddock wealthy The difficulties such as leaf weeds, including Descurainia sophia, shepherd's purse, sarson, clearvers, herba stellariae mediae, ox chickweed, common vetch, Herb of Common Nipplewort, youngia japonica are prevented miscellaneous Grass, and have extraordinary inhibiting effect to the wartwort (Euphorbiaceae) prevented and kill off difficult in wheatland.Florasulam removes for inner sucting conduction type Careless agent can be conducted to weeds complete stool, thus herbicide is thorough, will not recur.

Wheat field herbicide is limited by crop safety at present, and degrass spectrum is also limited, and a kind of herbicide single dose is used alone Cannot completely effectively control the generation of weeds of wheat, furthermore some herbicides due to the water-soluble big or field lasting period too Short, dosage is excessive or application unevenly all be easy to cause the residual hazard to this season crop or succession crop.Therefore, of the invention Select can degrass spectrum it is different, two kinds of herbicides of sulphonyl grass pyrazoles and trifloxystrobin of advantage and disadvantage complementation, which are made into mixture after being suitably reduced, to be made With not only expanding degrass spectrum, hence it is evident that improve herbicidal effect, also avoid generating this season crop phytotoxicity and to succession crop A possibility that generating residual hazard.

Summary of the invention

The object of the present invention is to provide the Herbicidal combinations of a kind of grass containing sulphonyl pyrazoles and florasulam.

It is a further object of the present invention to provide application of the herbicide in wheat paddock weeding.

A kind of Herbicidal combinations of grass containing sulphonyl pyrazoles and florasulam, it is characterised in that the herbicide is with sulphonyl grass pyrrole Azoles and florasulam are principle active component, and the mass ratio of sulphonyl grass pyrazoles and florasulam is 1~80:1~80.It is preferred that The quality of sulphonyl grass pyrazoles and florasulam is 20~60:1, most preferably 40:1.

In Herbicidal combinations, the mass percentage of both sulphonyl grass pyrazoles and florasulam in herbicide is 1 ~80%, preferred mass percentage composition is 15~60%, further preferably 25~65%.

In the binary built preparation of sulphonyl grass pyrazoles and florasulam of the invention, in addition to sulphonyl grass pyrazoles and double fluorine sulphurs Outside the effective components such as careless amine, the conventional surfactants allowed on pesticidal preparations, antidote, thickener, solvent can also be added Or the auxiliary agents such as solid packing are configured to any one dosage form allowed on pesticide.It is preferred that be processed into missible oil, suspending agent, aqueous emulsion, Microemulsion, wettable powder, water dispersible granules.

Further, the auxiliary element allowed on pesticide includes carrier and auxiliary agent.

The carrier is one of water, solvent or filler, two kinds or three kinds, the preferred deionized water of water.

The solvent is selected from n,N-Dimethylformamide, cyclohexanone, toluene, dimethylbenzene, dimethyl sulfoxide, methanol, second Alcohol, trimethylcyclohexanone, n-octylpyrrolidone, ethanol amine, triethanolamine, isopropylamine.N-Methyl pyrrolidone, propyl alcohol, One of butanol, ethylene glycol, diethylene glycol, ethylene glycol monomethyl ether, butyl ether, ethanol amine, isopropylamine, ethyl acetate or acetonitrile are more The mixture of kind composition.

The filler is in kaolin, diatomite, bentonite, attapulgite, white carbon black, starch or precipitated calcium carbonate The mixture of one or more compositions.

The auxiliary agent includes at least a kind of surfactant and can be also added antifreeze according to different use occasion and demand The other functions auxiliary agent such as agent, thickener, stabilizer, disintegrating agent, defoaming agent.

The surfactant is selected from one of emulsifier, dispersing agent, wetting agent or bleeding agent or four kinds.Above-mentioned surface Activating agent is the single dose or compound preparation of common nonionic surfactant or anionic surfactant.

Other function auxiliary agent one kind or five in antifreezing agent, thickener, stabilizer, disintegrating agent or defoaming agent Kind.

The emulsifier be selected from agriculture breast 500# (alkyl benzene calcium sulfonate), OP series phosphate (surfactant phosphate), 600# phosphate (phenyl phenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether wetting agent salt, alkyl biphenyl ether disulfonic acid Magnesium salts, triethanolamine salt, agriculture breast 400# (benzyl dimethyl phenol polyoxyethyl ether), Nongru-700 # (alkylphenol-formaldehyde resin polyoxy Ethylether), peaceful cream 36# (phenethyl phenol formaldehyde resin polyoxyethyl ether), agriculture breast 1600# (phenethyl phenol polyoxyethanyl polypropylene Base ether), ethylene oxide-propylene oxide block copolymer, OP serial (surfactant), the serial (castor oil polyoxyethylene of BY Ether), agriculture breast 33# (alkylaryl polyoxyethylene poly-oxygen propylene aether), Span series (sorbitol anhydride monostearate), TWEEN Series One or more of (anhydrous sorbitol resin acid ester APEO) or AEO series (fatty alcohol polyoxyethylene ether) composition Mixture.

The dispersing agent be selected from polycarboxylate, lignosulfonates, APES formaldehyde condensation products sulfat, Alkyl benzene calcium sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkyl phenol polyoxyethylene ether, aliphatic amine polyoxyethylene ether, fatty acid polyglycol The mixture of one of ethylene oxide ether or glycerol fatty acid ester polyoxyethylene ethe or a variety of compositions.

The wetting agent is selected from lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, soap The mixture of one of angle powder, silkworm excrement or spaonin powder or a variety of compositions.

The bleeding agent is selected from penetrating agent JFC (fatty alcohol polyoxyethylene ether), penetrant t (diisooctyl maleate Sulfonate), the mixture of one of azone or organosilicon or a variety of compositions.

The antifreezing agent is selected from the mixture of one of ethylene glycol, propylene glycol, glycerine or urea or a variety of compositions.

The thickener is selected from one of xanthan gum, disintegrating agent, bentonite, carboxymethyl cellulose or aluminium-magnesium silicate or more The mixture of kind composition.

The stabilizer is selected from one kind or more of epoxidized soybean oil, epoxychloropropane, BHT, ethyl acetate, triphenyl phosphate The mixture of kind composition.

The disintegrating agent is selected from bentonite, urea, wetting agent, aluminium chloride, low-substituted hydroxypropyl cellulose, lactose, lemon The mixture of one of acid, succinic acid or sodium bicarbonate or a variety of compositions.

The defoaming agent is selected from silicone oil, silicone compound, C10-C20 saturated fat acids compound or C8-C10 fat The mixture of one of alcohol compound or a variety of compositions.

Further, sulphonyl grass pyrazoles, florasulam composition can further with fluroxypyr, azoles humulone, Mesosulfuron, clodinafop-propargyl, flucarbazone, pyroxsulam a kind of mixture make ternary herbicide, main eliminating weed in wheat field.

Application of the Herbicidal combinations of the present invention in wheat paddock weeding, the grass family especially in preventing and kill off wheat paddock The application of weeds and broadleaf weeds has many advantages, such as broad weed-killing spectrum, quick, low, the less toxic, safety and environmental protection of residual, is good Wheat crop chemical herbicide.

Compared to the prior art, beneficial effects of the present invention:

Combinations of herbicides of the invention has broad weed-killing spectrum, quick, efficient, less toxic, the low, safety and environmental protection of residual etc. excellent Point, it is possible to reduce the advantages that pesticide usage amount reduces pesticide residue, and Environmental compatibility is good, to safety of human and livestock, is good wheat Crop chemistry herbicide.

1, activity of weeding is high.Herbicidal combinations of the invention can kill weeds by two kinds of different mechanism, so that weeds Resistance generates speed and reduces, and effective ingredient consumption reduces, but greatly improves the removing activity of herbicide.

2, herbicidal spectrum is wide, and the lasting period is long.Sulphonyl grass pyrazoles is mainly used for preventing and kill off broadleaf weeds, and florasulam is broad spectrum activity Herbicide can be used for preventing and kill off gramineae weed and part broadleaf weeds.After the two mixing, it can be improved to gramineae weed and wealthy The control efficiency of leaf weeds.

3, delay Weed Resistance.Herbicidal combinations of the present invention reduce weeds to the resistance of medicament by binary built, and mention The preventive effect of high antagonism weeds, to extend the service life of medicament.

4, highly-safe.Since the use content of various effective components reduces, make medicament in the premise for improving drug effect Under, pesticide residue is reduced, also avoids also being improved to wheat and succession crop safety, avoids pesticide to people A possibility that livestock products life residual hazard.

Specific embodiment

Below by way of specific embodiment, invention is further explained:

Prepare case:

1, missible oil:

Preparation method: effective component sulphonyl grass pyrazoles and florasulam being added in carrier in Example formulations ratio, And surfactant and other function auxiliary agent are added wherein, it is uniformly mixed in being stirred kettle.Stirring is mixed Closing kettle can be selected enamel reaction still, stainless steel stirred tank etc..

Embodiment 1:20.5% sulphonyl grass pyrazoles florasulam missible oil (20:0.5)

Formula: sulphonyl grass pyrazoles 20%, florasulam 0.5%, dispersing agent 3%, emulsifier 12%, solvent to 100%, The missible oil that mass percentage is 25% is configured to according to conventional formulation method.

Embodiment 2:41% sulphonyl grass pyrazoles florasulam missible oil (40:1)

Formula: sulphonyl grass pyrazoles 40%, florasulam 1%, dispersing agent 2.4%, emulsifier 15%, solvent to 100%, The missible oil that mass percentage is 41% is configured to according to conventional formulation method.

Embodiment 3:37.5% sulphonyl grass pyrazoles florasulam fluroxypyr missible oil (10:2.5:25)

Formula: sulphonyl grass pyrazoles 10%, florasulam 2.5%, fluroxypyr 25%, dispersing agent 3%, emulsifier 12%, solvent to 100% is configured to the missible oil that mass percentage is 37.5% according to conventional formulation method.

Embodiment 4:21.3% sulphonyl grass pyrazoles florasulam azoles humulone missible oil (20:0.5:0.8)

Formula: sulphonyl grass pyrazoles 20%, florasulam 0.5%, azoles humulone 0.8%, dispersing agent 2.6%, emulsifier 10%, solvent to 100% is configured to the missible oil that mass percentage is 21.3% according to conventional formulation method.

Embodiment 5:31% sulphonyl grass pyrazoles florasulam mesosulfuron missible oil (20:5:6)

Formula: sulphonyl grass pyrazoles 20%, florasulam 5%, mesosulfuron 6%, dispersing agent 2.6%, emulsifier 10%, solvent to 100% is configured to the missible oil that mass percentage is 31% according to conventional formulation method.

Embodiment 6:37.5% sulphonyl grass pyrazoles florasulam clodinafop-propargyl missible oil (10:2.5:25)

Formula: sulphonyl grass pyrazoles 10%, florasulam 2.5%, clodinafop-propargyl 25%, dispersing agent 2.6%, emulsifier 10%, solvent to 100% is configured to the missible oil that mass percentage is 37.5% according to conventional formulation method.

Embodiment 7:35% sulphonyl grass pyrazoles florasulam pyroxsulam missible oil (20:0.5:0.8)

Formula: sulphonyl grass pyrazoles 20%, florasulam 5%, pyroxsulam 10%, dispersing agent 2.6%, emulsifier 10%, solvent to 100% is configured to the missible oil that mass percentage is 35% according to conventional formulation method.

2, suspending agent

Preparation method: pressing formula rate, by effective component sulphonyl grass pyrazoles and florasulam, surfactant and other Functional aid is sequentially placed into reaction kettle, is mixed with water, and through high speed shear, wet process is sanded, finally homogeneous to filter to obtain the final product Product.Capital equipment is batching kettle, colloid mill or homogeneous mixing machine, sand mill.

Embodiment 8:20.5% sulphonyl grass pyrazoles florasulam suspending agent (20:0.5)

Formula: sulphonyl grass pyrazoles 20%, florasulam 0.5%, dispersing agent 6%, surfactant 3%, thickener 0.5%, solvent 7.2% adds water to 100%, is configured to the suspension that mass percentage is 31% according to conventional formulation method Agent.

Embodiment 9:31% sulphonyl grass pyrazoles florasulam suspending agent (30:1)

Formula: sulphonyl grass pyrazoles 30%, florasulam 1%, dispersing agent 5.5%, surfactant 3%, thickener 0.5%, solvent 7.2% adds water to 100%, according to conventional formulation method be configured to mass percentage be 20.5% it is outstanding Floating agent.

3, aqueous emulsion

Preparation method: in Example formulations ratio by effective component sulphonyl grass pyrazoles and florasulam and solvent, emulsification Agent, cosolvent are added together, and make to be dissolved into uniform oily phase；By part water, antifreeze, the others pesticide such as antimicrobial is helped Agent mixes into uniform water phase；The oil phase is added to the aqueous phase while being stirred in the reactor at high speed, slowly plus water until Reach phase inversion point, open cutter and carry out high speed shear, and remaining water is added, shearing about half an hour, forms oil-in-water type Aqueous emulsion.

Embodiment 10:31% sulphonyl grass pyrazoles florasulam aqueous emulsion (30:1)

Formula: sulphonyl grass pyrazoles 30%, florasulam 1%, emulsifier 3%, dispersing agent 6%, thickener 0.5% are molten Agent 27%, water to 100% are configured to the aqueous emulsion that mass percentage is 31% according to conventional formulation method.

Embodiment 11:20.5% sulphonyl grass pyrazoles florasulam aqueous emulsion (20:0.5)

Formula: sulphonyl grass pyrazoles 20%, florasulam 0.5%, emulsifier 2.9%, dispersing agent 5.4%, thickener 0.5%, solvent 27%, water to 100% is configured to the water and milk that mass percentage is 20.5% according to conventional formulation method Agent.

4, microemulsion

Preparation method: it in Example formulations ratio, by effective component sulphonyl grass pyrazoles and florasulam solvent and helps Solvent is completely dissolved, and then adds other auxiliary agents, is uniformly mixed, is eventually adding water, after being sufficiently stirred, can be prepared by the present invention Miticide composition microemulsion formulation.

Embodiment 13:20.5% sulphonyl grass pyrazoles florasulam microemulsion (20:0.5)

Formula: sulphonyl grass pyrazoles 20%, florasulam 0.5%, dispersing agent 6%, surfactant 3%, thickener 0.5%, solvent 9%, water to 100% is configured to the microemulsion that mass percentage is 20.5% according to conventional formulation method.

5, wettable powder

Preparation method: in Example formulations ratio, effective component sulphonyl grass pyrazoles and florasulam being added in carrier, And surfactant and other function auxiliary agent are added wherein, mixing remixes obtained wettable powder after air-flow crushing. Capital equipment has mixing machine, airslide disintegrating mill.

Embodiment 14:65% sulphonyl grass pyrazoles florasulam microemulsion (12:1)

Formula: sulphonyl grass pyrazoles 60%, florasulam 5%, diffusant 6%, dispersing agent 4%, carrier to 100% are pressed The formulation method of more solito is configured to the wettable powder that mass percentage is 65%.

Embodiment 15:20.5% sulphonyl grass pyrazoles florasulam microemulsion (20:0.5)

Formula: sulphonyl grass pyrazoles 20%, florasulam 0.5%, diffusant 3%, dispersing agent 4%, kaolin is extremely 100%, the wettable powder that mass percentage is 20.5% is configured to according to conventional formulation method.

6, water dispersible granules

Preparation method: in Example formulations ratio, effective component sulphonyl grass pyrazoles and florasulam being added in carrier, And surfactant and other function auxiliary agent are added wherein, mixing adds 10~25% water after air-flow crushing, then passes through It mediates, be granulated, is dry, sieving obtained water dispersible granules product；Or the powder that crushed is sprayed water in boiling granulator, is made Grain, dry, the obtained product of screening later.Capital equipment has mixing machine, airslide disintegrating mill, kneader, a Squeezinggranulator, drying chamber or Fluidized bed drying or boiling granulator, screening machine.

Embodiment 16:20.5% sulphonyl grass pyrazoles florasulam microemulsion (20:0.5)

Formula: sulphonyl grass pyrazoles 20%, florasulam 0.5%, diffusant 5%, wetting agent 2.5%, disintegrating agent 2%, Kaolin is configured to the water dispersion granule that mass percentage is 20.5% to 100%, according to conventional formulation method.

Embodiment 17:31% sulphonyl grass pyrazoles florasulam microemulsion (30:1)

Formula: sulphonyl grass pyrazoles 30%, florasulam 1%, diffusant 5%, wetting agent 3%, disintegrating agent 2%, kaolinite Soil is configured to the water dispersion granule that mass percentage is 31% to 100%, according to conventional formulation method.

Embodiment 18:12% sulphonyl grass pyrazoles florasulam microemulsion (10:2)

Formula: sulphonyl grass pyrazoles 10%, florasulam 2%, diffusant 8%, wetting agent 5%, disintegrating agent 3%, kaolinite Soil is configured to the water dispersion granule that mass percentage is 12% to 100%, according to conventional formulation method.

Embodiment 19:42% sulphonyl grass pyrazoles florasulam microemulsion (40:2)

Formula: sulphonyl grass pyrazoles 40%, florasulam 2%, diffusant 10%, wetting agent 4%, disintegrating agent 1%, kaolinite Soil is configured to the water dispersion granule that mass percentage is 42% to 100%, according to conventional formulation method.

Active case

Embodiment 1) toxicity determination test

Test basis: NY/T1155.4-2006 " the 4th part of farm-chemical indoor determination test rule herbicide: survey by activity Surely test cauline leaf spray-on process ", NY/T1155.7-2006 " the 7th part of farm-chemical indoor determination test rule herbicide: mixture Synergy measurement "

Test medicine: sulphonyl grass pyrazoles raw medicine, florasulam raw medicine.

Test target: Descurainia sophia.

Test method: test soil is quantitatively filled at the 4/5 of basin alms bowl.Using basin alms bowl bottom infiltrating irrigation mode, keep soil complete It is wet.By estimated processing for examination weeds uniform broadcasting in soil surface, earthing 0.5cm after planting moves into greenhouse routine culture. Weeds are appeared laggard seedling singling in the ranks, and every basin alms bowl retains 20 plants of weeds.

Chemicals treatment: 4 repetitions of every processing, clear water control.

Data statistics and analysis

Calculation formula:

Fresh weight preventive effect calculation formula:

In formula:

R: growth inhibition ratio, unit are percentage %；

X0: control fresh weight, unit are gram；

X1: treatment region fresh weight, unit are gram.

Binary mixture theory preventive effect calculation formula:

E0=X+Y-X × Y/100

In formula:

X: Weed-control effect when herbicide A dosage is P；

Y: Weed-control effect when herbicide B dosage is Q；

E0: Weed-control effect when Weed-control effect+herbicide B dosage when herbicide A dosage is P is Q.

E: the herbicide A practical preventive effect with herbicide B after mixed according to the above ratio.

E0 > 10% is synergistic effect；E-E0 < -10% is antagonism；E-E0 value is addition between ± 10%.

1 sulphonyl grass pyrazoles of table is with florasulam mixture to the toxicity index of Descurainia sophia

By laboratory test it can be seen that being in (table 1), sulphonyl grass pyrazoles and florasulam mixture indoors virulence Synergistic effect, synergistic effect is maximum when wherein twenty percent is divided into 20+0.5, E-E0 32.1.Secondary test can be carried out by field efficacy Card.

Embodiment 2) field control effectiveness test

Reagent agent: formulation preparation example (detail is shown in Table 2)

Comparison medicament: 30% sulphonyl grass pyrazoles water dispersible granules (commercially available)

For studying object: wheat, wheat seedling grow fine, robust plant, without other pest and disease damages

Control object: herba stellariae mediae, purslane, herba digitariae, wild avena sativa, herba setariae viridis, barnyard grass.

Test method:

According to the area of experimental plot, the good various medicaments of precise, after being watered dilution, using knapsack sprayer, into Row even spraying selects the dedicated Fan spray head of herbicide by spraying.When spraying, it should be noted that medical fluid is uniformly sprayed application to experimental plot In, anti-Zhiduo County's spray, drain spray phenomenon.

15 days observation weeds death conditions after medicine, and the activity of weeding of more various medicaments respectively after test.In addition, also The growing state (dosage that dosage is effective component per acre) of crop is observed in 1-15 days, after medicine to investigate medicament to work Whether object has phytotoxicity.

The embodiment of the present invention preparation Herbicidal Testing Trials effect see the table below 2 (after medicine 15 days)

2 field control effectiveness test result of table (15d after medicine)

As shown in Table 2, Herbicidal combinations of the present invention have expand herbicidal spectrum, improve activity of weeding, and have quick-acting and Lasting effect.

Claims (9)

1. a kind of Herbicidal combinations of grass containing sulphonyl pyrazoles and florasulam, which is characterized in that: the Herbicidal combinations are by activity Ingredient sulphonyl grass pyrazoles and florasulam and auxiliary element form.

2. Herbicidal combinations according to claim 1, which is characterized in that the Herbicidal combinations active constituent sulphonyl grass pyrazoles Mass ratio with florasulam is 1~80:1~80.

3. Herbicidal combinations according to claim 1, which is characterized in that the Herbicidal combinations can further with chlorine fluorine pyrrole oxygen Acetic acid, azoles humulone, mesosulfuron, clodinafop-propargyl, flucarbazone, pyroxsulam a kind of mixture.

4. Herbicidal combinations according to claim 1, which is characterized in that the Herbicidal combinations active constituent sulphonyl grass pyrazoles It is 20~60:1, preferably 40:1 with florasulam mass ratio.

5. Herbicidal combinations according to claim 1, which is characterized in that the Herbicidal combinations active constituent sulphonyl grass pyrazoles It is 1%~80%, preferably 15%~60% with weight percentage of the florasulam in herbicide.

6. according to claim 1 to Herbicidal combinations described in 5, which is characterized in that the main active of the Herbicidal combinations Any one dosage form is configured to the auxiliary agent allowed on pesticide.

7. Herbicidal combinations according to claim 6, which is characterized in that the dosage form is missible oil, suspending agent, water and milk Agent, microemulsion, wettable powder, water dispersible granules.

8. according to claim 1 to Herbicidal combinations described in 7, which is characterized in that the herbicide is used for weeds of wheat Prevent and kill off.

9. Herbicidal combinations according to claim 7, which is characterized in that the weeds are that the common broad-leaved of wheat paddock is miscellaneous Grass, such as Descurainia sophia, shepherd's purse, clearvers, Veronica, herba stellariae mediae.