A kind of Herbicidal combinations of Sulfometuron Methyl containing promazine with ethobenzanid and its applicationTechnical field
The invention belongs to technical field of pesticide, especially herbicide field, and in particular to a kind of Sulfometuron Methyl containing promazine and secondThe binary built Herbicidal combinations of oxygen benzene grass amine, the Herbicidal combinations can be applied to rice terrace postemergence weed control.
Background technology
Promazine Sulfometuron Methyl (propyrisulfuron), is a kind of selective broad-spectrum herbicide, to resistance to sulfonylurea herbicideWeeds have preferable preventive effect, to above the average age for marriage barnyard grass, nutgrass flatsedge, broadleaved herb effectively, can foliar spray, get rid of and apply.
Ethobenzanid, chemical name：The chloro- N- of 2', 3'- bis- (4- (ethoxymethyl) epoxides benzoyl) aniline, structural formula：
Ethobenzanid belongs to acetamide-group herbicides, is mainly used in rice terrace before seedling or postemergence weed control.
Current herbicide for paddy field is limited by crop safety, and herbicide controlling spectrum is also limited, and a kind of herbicide single dose is used aloneCan not completely effectively control the generation of paddy field weed, furthermore some herbicides due to the water-soluble big or field lasting period tooLong, consumption is excessive or the uneven residual hazard all easily caused to this season crop or succession crop of dispenser.Inventor is through researchIt was found that, the synergistic complex of herbicide is the effective measures for expanding weed control spectrum and improving preventive effect, so far it is not yet found thatClose the Herbicidal combinations of promazine Sulfometuron Methyl and ethobenzanid compounding.
The content of the invention
It is an object of the invention to provide a kind of Sulfometuron Methyl containing promazine and the Herbicidal combinations of ethobenzanid.
It is a further object of the present invention to provide application of the Herbicidal combinations in agent for removing grass in paddy field.
The purpose of the present invention is achieved through the following technical solutions：
The Herbicidal combinations of a kind of Sulfometuron Methyl containing promazine and ethobenzanid, the Herbicidal combinations are with promazine Sulfometuron Methyl and secondOxygen benzene grass amine is principle active component, wherein, ethobenzanid is 1 with the mass ratio of promazine Sulfometuron Methyl：60~60：1.
Herbicidal combinations of the present invention, described ethobenzanid and the mass ratio of promazine Sulfometuron Methyl is 1：30~50：1, more preferably 1：30~29：1, most preferably 1：5~20：1.
In some preferred technical schemes：Ethobenzanid can be 34 with promazine Sulfometuron Methyl：1、29：1、59：1、12：1、60：1、50：1、40：1、20：1、10：1、5：1、1：1、1：5、1：10、1：20、1：30、1：50、1：Selected in 60 these ratiosSelect.
In Herbicidal combinations of the present invention, described promazine Sulfometuron Methyl and both ethobenzanids are in Herbicidal combinationsWeight/mass percentage composition is 1%~80%, preferably 10%~65%.
Herbicidal combinations of the present invention can also add agriculture with promazine Sulfometuron Methyl and ethobenzanid as active ingredientWhat the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing for being allowed on medicine preparation were configured to be allowed on agricultural chemicals appointsAnticipate a kind of formulation.It is preferred that being processed into missible oil, suspending agent, aqueous emulsion, microemulsion, water dispersible granules, wettable powder etc..
Herbicidal combinations of the present invention can comprise only active component promazine Sulfometuron Methyl and ethobenzanid, phonetic with promazineSulphur it is grand with ethobenzanid for active ingredient carries out binary built, also can in use or preparation to composition in add other to liveProperty component, the effective ingredient in the Herbicidal combinations is present in composition with enhancing effective amount.
Herbicidal combinations of the invention, are applied to agent for removing grass in paddy field, and it can prevent and kill off in rice terrace various grass family and wealthyLeaf weeds, with remarkable result, on the premise of drug effect is improve, all have security to paddy rice and succession crop.Therefore,Another effect of the invention is to provide application of the described Herbicidal combinations in rice terrace postemergence weed control, is particularly preventing and kill offApplication in rice terrace in grass family and broad leaved weed.Herbicidal combinations of the present invention are used to prepare rice terrace postemergence weed controlHerbicide, particularly prevent and kill off the herbicide of grass family and broad leaved weed in rice terrace for preparing.Described weeds be lady's-grass,Barnyard grass, green bristlegrass, Monochoria vaginalis, moleplant seed.
Herbicidal combinations of the present invention can
Compared to the prior art, beneficial effects of the present invention：
Present invention selection can herbicide controlling spectrum it is different, the complementary promazine Sulfometuron Methyl of advantage and disadvantage is fitted with two kinds of herbicides of ethobenzanidUsed when mixture is made into after decrement, so both expand herbicide controlling spectrum, hence it is evident that improve herbicidal effect, it also avoid to this season cropProduce poisoning and the possibility of residual hazard is produced to succession crop.It is embodied in advantages below：
1st, activity of weeding is high.Herbicidal combinations of the invention can kill weeds by two kinds of different mechanism so that weedsResistance produces speed to reduce, and is greatly enhanced the removing activity of herbicide.
2nd, herbicidal spectrum is wide, and the lasting period is long.After both mixing, it is possible to increase various grassy weeds and broad leaved weed are preventedControl.
3rd, Weed Resistance is delayed.Herbicidal combinations of the present invention reduce resistance of the weeds to medicament, and carry by binary builtThe preventive effect of antagonism weeds high, so as to extend the service life of medicament.
4th, it is safe.Because its dosage is under control, make medicament on the premise of drug effect is improve, it is to waterThe security of rice and succession crop is also improved.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present inventionIt is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, limit is not used toThe fixed present invention, all simple modifications under concept thereof of the invention to preparation method of the present invention belong to protection model of the inventionWithin enclosing.
Percentage is weight/mass percentage composition in all formulas of following examples.The processing of the various preparations of the present compositionTechnique is prior art, can be varied from according to different situations.
First, formulation prepares embodiment
Embodiment 1：35% ethobenzanid promazine Sulfometuron Methyl missible oil (34：1)
Ethobenzanid 34%, promazine Sulfometuron Methyl 1%, APES 4%, phenethyl phenol polyethenoxy ether15%, dimethylbenzene complements to 100%, and the missible oil that weight/mass percentage composition is 35% is configured to according to conventional formulation method.
Embodiment 2：30% ethobenzanid promazine Sulfometuron Methyl suspending agent (29：1)
Ethobenzanid 29%, promazine Sulfometuron Methyl 1%, methyl naphthalene sulfonate formaldehyde condensate 6%, Nonyl phenoEther 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, balance of water, according to conventional preparationMethod is configured to the suspending agent that weight/mass percentage composition is 30%.
Embodiment 3：60% ethobenzanid promazine Sulfometuron Methyl water dispersible granules (59：1)
Ethobenzanid 59%, promazine Sulfometuron Methyl 1%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, ammonium sulfate 3%, poly- secondEnol 2%, kaolin complements to 100%, and being configured to the moisture that weight/mass percentage composition is 60% according to conventional formulation method dissipatesGranula (WDG).
Embodiment 4：65% ethobenzanid promazine Sulfometuron Methyl wettable powder (12：1)
Ethobenzanid 60%, promazine Sulfometuron Methyl 5%, NNO 6%, sodium lignin sulfonate 4%, kaolin is complemented to100%, it is configured to the wettable powder (WP) that weight/mass percentage composition is 65% according to conventional formulation method.
Embodiment 5：61% ethobenzanid promazine Sulfometuron Methyl missible oil (60：1)
Ethobenzanid 60%, promazine Sulfometuron Methyl 1%, APES 4%, phenethyl phenol polyethenoxy ether15%, dimethylbenzene complements to 100%, and the missible oil that weight/mass percentage composition is 61% is configured to according to conventional formulation method.
Embodiment 6：61% ethobenzanid promazine Sulfometuron Methyl missible oil (1：60)
Ethobenzanid 1%, promazine Sulfometuron Methyl 60%, APES 4%, phenethyl phenol polyethenoxy ether15%, dimethylbenzene complements to 100%, and the missible oil that weight/mass percentage composition is 61% is configured to according to conventional formulation method.
Embodiment 7：51% ethobenzanid promazine Sulfometuron Methyl suspending agent (50：1)
Ethobenzanid 50%, promazine Sulfometuron Methyl 1%, methyl naphthalene sulfonate formaldehyde condensate 6%, Nonyl phenoEther 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, balance of water, according to conventional preparationMethod is configured to the suspending agent that weight/mass percentage composition is 51%.
Embodiment 8：51% ethobenzanid promazine Sulfometuron Methyl suspending agent (1：50)
Ethobenzanid 1%, promazine Sulfometuron Methyl 50%, methyl naphthalene sulfonate formaldehyde condensate 6%, Nonyl phenoEther 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, balance of water, according to conventional preparationMethod is configured to the suspending agent that weight/mass percentage composition is 51%.
Embodiment 9：31% ethobenzanid promazine Sulfometuron Methyl water dispersible granules (1：30)
Ethobenzanid 1%, promazine Sulfometuron Methyl 30%, NNO 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin is suppliedTo 100%, the water dispersible granules that weight/mass percentage composition is 31% are configured to according to conventional formulation method.
Embodiment 10：41% ethobenzanid promazine Sulfometuron Methyl water dispersible granules (40：1)
Ethobenzanid 40%, promazine Sulfometuron Methyl 1%, NNO 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin is suppliedTo 100%, the water dispersible granules that weight/mass percentage composition is 41% are configured to according to conventional formulation method.
Embodiment 11：42% ethobenzanid promazine Sulfometuron Methyl wettable powder (20：1)
Ethobenzanid 40%, promazine Sulfometuron Methyl 2%, NNO 6%, sodium lignin sulfonate 4%, kaolin is complemented to100%, it is configured to the wettable powder that weight/mass percentage composition is 42% according to conventional formulation method.
Embodiment 12：21% ethobenzanid promazine Sulfometuron Methyl wettable powder (1：20)
Ethobenzanid 1%, promazine Sulfometuron Methyl 20%, NNO 6%, sodium lignin sulfonate 4%, kaolin is complemented to100%, it is configured to the wettable powder that weight/mass percentage composition is 21% according to conventional formulation method.
Embodiment 13：33% ethobenzanid promazine Sulfometuron Methyl aqueous emulsion (1：10)
Ethobenzanid 3%, promazine Sulfometuron Methyl 30%, methyl naphthalene sulfonate formaldehyde condensate 6%, Nonyl phenoEther 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, 150# solvent naphthas 20%, water complements to 100%, according toConventional formulation method is configured to the aqueous emulsion that weight/mass percentage composition is 33%.
Embodiment 14：33% ethobenzanid promazine Sulfometuron Methyl aqueous emulsion (10：1)
Ethobenzanid 30%, promazine Sulfometuron Methyl 3%, methyl naphthalene sulfonate formaldehyde condensate 6%, Nonyl phenoEther 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, 150# solvent naphthas 20%, water complements to 100%, according toConventional formulation method is configured to the aqueous emulsion that weight/mass percentage composition is 33%.
Embodiment 15：30% ethobenzanid promazine Sulfometuron Methyl microemulsion (5：1)
Ethobenzanid 25%, promazine Sulfometuron Methyl 5%, methyl naphthalene sulfonate formaldehyde condensate 6%, Nonyl phenoEther 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, water complements to 100%, according to conventional formulation methodIt is configured to the microemulsion that weight/mass percentage composition is 30%.
Embodiment 16：60% ethobenzanid promazine Sulfometuron Methyl wettable powder (1：5)
Ethobenzanid 10%, promazine Sulfometuron Methyl 50%, NNO 6%, sodium lignin sulfonate 4%, kaolin is complemented to100%, it is configured to the wettable powder that weight/mass percentage composition is 60% according to conventional formulation method.
Embodiment 17：10% ethobenzanid promazine Sulfometuron Methyl wettable powder (1：1)
Ethobenzanid 5%, promazine Sulfometuron Methyl 5%, NNO 6%, sodium lignin sulfonate 4%, kaolin is complemented to100%, it is configured to the wettable powder that weight/mass percentage composition is 10% according to conventional formulation method.
2nd, drug effect checking test
1), toxicity determination test
According to active ingredient ethobenzanid：Promazine Sulfometuron Methyl quality proportioning is：70：1,34：1、29：1、59：1、12：1、60：1、50：1、40：1、20：1、10：1、5：1、1：1、1：5、1：10、1：20、1：30、1：50、1：60,1：70 are tested, and are surveyedFixed its co-toxicity coefficient to rice terrace common weed barnyard grass.
Test method：The seed of quantitative barnyard grass is seeded in the Disposable paper cup of 9cm respectively, in every glass sow 10~15 seeds, cultivate in illumination box, when the barnyard grass 1-4 leaf phase, spraying treatment are carried out on crawler type crops sprayer.Continue to cultivate in greenhouse after treatment, routine observation respectively processes the preventive effect to weeds, and the weeds weighed after 30d after each treatment are freshWeight, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is more than 120, shows that two kinds of active principles have synergistic effect,Co-toxicity coefficient shows that two kinds of active principles have summation action between 80-120, and co-toxicity coefficient is less than 80, shows two kinds effectivelyMaterial has antagonism.Measurement result is as shown in table 1.
The toxicity measurement result of table 1
As it can be seen from table 1 ethobenzanid and promazine Sulfometuron Methyl are according to mass ratio 1：60~60：1 compounding is to barnyard grassHerbicidal effect is significantly improved, and illustrates that the two compounding has significant synergies to preventing and kill off barnyard grass.When ethobenzanid and promazineThe proportioning of Sulfometuron Methyl is 1：30~50：Between 1, the co-toxicity coefficient after two kinds of active principle compoundings is more excellent, and co-toxicity coefficient is not less than135；When the proportioning of ethobenzanid and promazine Sulfometuron Methyl is 1：30~29：Between 1, co-toxicity coefficient is more than 150；When ethoxy benzene grassThe proportioning of amine and promazine Sulfometuron Methyl is 1：5~29：Between 1, co-toxicity coefficient is more than 160；Illustrate that the present invention has obvious synergyEffect.
2), field control effectiveness test.
Reagent agent：
Promazine Sulfometuron Methyl and the re-compounded binary herbicide of ethobenzanid different ratio prepared by embodiment 1~17.
Comparison medicament：
9.5% promazine Sulfometuron Methyl SC (commercially available), 40% ethobenzanid water dispersible granules (are prepared) using conventional method.
For studying thing：Paddy rice
Rice seedlings grow fine, robust plant, without other pest and disease damages.
Prevent and kill off object：
The weeds such as lady's-grass, barnyard grass, Monochoria vaginalis, green bristlegrass, moleplant seed.
Test method：
According to the area of experimental plot, the good various medicaments of precise, and be watered dilution after, using knapsack sprayer,Carry out even spraying, the special Fan spray head of sprinkler selection herbicide.During spraying, it should be noted that liquid is uniformly sprayed application to experiment smallQu Zhong, accomplishes the phenomenon without drain spray, many sprays.
20d, 40d observe weeds death condition after medicine respectively after experiment, and compare the activity of weeding of various medicaments.ThisOutward, the condition of production (consumption is every mu of consumption of ground active ingredient) of crop is also observed in 1~15d after medicine, to investigateWhether medicament has poisoning to crop.
Embodiments of the invention preparation Herbicidal Testing Trials effect see the table below 2 (20d after medicine) and table 3 (40d after medicine).
The field control effectiveness test result of table 2 (20d after medicine)
The field control effectiveness test result of table 3 (40d after medicine)
From table 2 and table 3 as can be seen that promazine Sulfometuron Methyl and ethobenzanid compounding have it is rapid-action, expand herbicidal spectrum andThe effect of activity of weeding is improved, and extends the lasting period of medicament.Broad leaved weed and grassy weed can be effectively prevented and kill off, it is prevented and kill offEffect illustrates that the two compounding has significantly to the preventive effect of broad leaved weed in rice terrace and grassy weed better than the preventive effect of single doseSynergistic effect.
Security survey result of the medicament of table 4 to crop
The rice is doing well in each treatment cell, has no any medicine spot, illustrates that various medicaments are safe to paddy rice.