CN103651411A - Tembotrione-containing weeding composition - Google Patents
Tembotrione-containing weeding composition Download PDFInfo
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- CN103651411A CN103651411A CN201310735359.9A CN201310735359A CN103651411A CN 103651411 A CN103651411 A CN 103651411A CN 201310735359 A CN201310735359 A CN 201310735359A CN 103651411 A CN103651411 A CN 103651411A
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Abstract
The invention relates to a tembotrione-containing weeding composition which is characterized by comprising two effective constituents namely tembotrione (A) and (B), wherein (B) is at least one selected from metolachlor and flufenacet; the weight part ratio of A to B is (56:1)-(1:63), and (30:5)-(5:40) preferably. In the composition, the total weight part of A and B accounts for 1-80% of that of the composition, and 5-45% preferably. Pesticide preparation forms such as wettable powder, a suspending agent, missible oil, a microemulsion, an emulsion in water, a granular formulation and a water dispersible granule can be prepared from the tembotrione-containing weeding composition. The tembotrione-containing weeding composition enlarges the weeding spectrum, overcomes the defect that metolachlor and flufenacet are inefficient in preventing broad-leaf weeds, greatly increases the prevention and kill-off rate, retards occurrence of resistance of weeds, reduces the repeated application times of a pesticide, and decreases the application amount of the pesticide and agricultural cost.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, be specifically related to a kind of Herbicidal combinations that contains ring sulphur ketone.
Background technology
Ring sulphur ketone is a kind of novel three ketones weed killer herbicide, is similarly HPPD inhibitor, is mainly used in cornfield weeding.Its chemical structural formula is:
Isopropyl methoxalamine (metolachlor) is a kind of amide-type selective herbicide, and chemical name is chloro-2 ', the 6 '-diethyl-N-of 2-(2-propoxyl group ethyl) acetanil.Mainly the young shoot by plant is that the hypocotyl of unifacial leaf and coleoptile, dicotyledon absorbs upwards conduction.Main by upwards conduction of root absorption, Profilin matter synthetic lethal after emerging.When soil moisture content is good, weeds were killed in the young shoot phase; If soil moisture is few, after weeds are unearthed, along with rainfall soil moisture increases, after weeds absorb the shrinkage of isopropyl methoxalamine leaf, whole strain is withered.Be applicable to the crops such as corn, soybean, rape, cotton, jowar, vegetables, prevent and kill off the annual gramineous weed effects such as lady's-grass, barnyard grass, eleusine indica, green foxtail, moleplant seed, india lovegrass better, poor to broadleaved herb preventive effect.Its chemical structural formula is:
Flufenacet (flufenacet) is a kind of aryloxyl acetamide type compound, and chemical name is the fluoro-N-isopropyl-2-[5-of 4'-(trifluoro glycosides)-1,3,4-thiadiazole-2-imines] acetamide.Mainly by suppressing cell division, play a role, be mainly used in the crop Tanakas' such as corn, wheat, barley, soybean, cotton, paddy rice annual gramineous weed as Annual Ryegrass, nutgrass flatsedge and some granule broad leaved weeds.Little to mammalian toxicity, use safer, before bud, all can use after bud.Its chemical structural formula is:
Because the weed killer herbicide of applying in agricultural production is at present of a great variety, drug toxicity is large, and residual quantity is high, is easier to make weeds to produce resistance, and when therefore above three kinds of medicaments are used as single dose, its weeding effect is subject to resistance to affect reduction greatly.In addition the mode of action, flufenacet, the isopropyl methoxalamine mode of action are close, as single dose application than being easier to produce resistance.And the mode of action of ring sulphur ketone is comparatively unique, and there is no cross resistance with other weed killer herbicides on domestic market.The research and development of former medicine in agricultural chemicals drop into hugely in addition, and the initiative cycle of noval chemical compound is longer, and current domestic agricultural chemicals enterprise is limit by scale, scientific research strength, and it is unpractical that former drug compound is carried out to creative research.And composite between between agricultural chemicals can solve, agricultural chemicals single dose toxicity is large, the problem of weak effect, less investment again, short applicable domestic agricultural chemicals enterprise present situation of R&D cycle, and the mutual use between different agricultural chemicals can the drug-fast generation of retarding action thing, have comparatively desirable result of use, therefore between the different mechanism of action, the composite of agricultural chemicals is the study hotspot of current pesticide field.My research staff of company attempts encircling sulphur ketone and flufenacet, isopropyl methoxalamine is composite; to observe it, whether there is synergistic effect, through the checking of a large amount of indoor biometricses and field experiment, find take ring sulphur ketone and flufenacet, isopropyl methoxalamine composite as active ingredient carry out composite after; weed eradication rate improves greatly; quick-acting is obviously strengthened, and also there is certain prolongation the lasting period, and dosage is lower; reduced agricultural cost; toxicity is less, and residual quantity still less, is conducive to environmental protection more.Experiment confirms that both have very strong synergistic effect, and is that active principle carries out composite research about encircling sulphur ketone and first flufenacet, isopropyl methoxalamine, there is not yet at present relevant report at home and abroad.
Summary of the invention
The object of the invention is to situation about traditional Herbicid resistant being strengthened day by day for the general variation of weeds in recent years and weeds, and provide a kind of broad weed-killing spectrum, herbicidal effect good, use safety, more environmentally friendly Herbicidal combinations.
The solution of the present invention is achieved by the following technical measures:
A kind of Herbicidal combinations that contains ring sulphur ketone, its feature is to contain A, two kinds of active principles of B in the preparation of this Herbicidal combinations, wherein A component is ring sulphur ketone, B component is at least one in isopropyl methoxalamine, flufenacet, all the other components in preparation outside active principle are that agricultural chemicals used additives and preparation are prepared complementary component, in the preparation of this Herbicidal combinations, the ratio of weight and number of active principle A and B is 56: 1～1: 63, and in Herbicidal combinations preparation, the total weight parts of active principle A and B accounts for 1%～80% of whole total formulation weight amount part.
In the preparation of above-described Herbicidal combinations, the ratio of weight and number of active principle A and B is more preferably 30: 5～5: 40.
The percentage that in above-described Herbicidal combinations preparation, the total weight parts of active principle A and B accounts for whole total formulation weight amount part more preferably 5%～45%.
The pesticidal preparations formulation that above-described Herbicidal combinations can be mixed with is wetting powder, suspending agent, missible oil, microemulsion, aqueous emulsion, granule and water dispersible granules.
When above-described Herbicidal combinations is wetting powder, in preparation, the ratio of weight and number of each component is:
Active principle A 1 ~ 56
Active principle B 1 ~ 63
Dispersant 5 ~ 20
Wetting agent 1 ~ 10
Filler 10 ~ 70.
The concrete procedure of processing of this Herbicidal combinations wetting powder is: by above-mentioned formula, active principle A and active principle B and dispersant, wetting agent and filler are mixed, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, can be made into the wetting powder of Herbicidal combinations of the present invention.
When above-described Herbicidal combinations is suspending agent, in preparation, the ratio of weight and number of each component is:
Active principle A 1 ~ 56
Active principle B 1 ~ 63
Dispersant 5～20
Antifreezing agent 1～4
Thickener 1～6
Defoamer 0.1～1
Penetrating agent 1～12
PH value conditioning agent 0.1～5
Water is supplied 100 parts.
The concrete production stage of this suspending agent is for first mixing other auxiliary agents, through high speed shear, mix, add active principle A and active principle B, in ball crusher, abrading-ball is 2 ~ 3 hours, make a diameter all below 5mm, make the suspending agent preparation of Herbicidal combinations of the present invention.
When above-described Herbicidal combinations is aqueous emulsion, in preparation, the ratio of weight and number of each component is:
Active principle A 1 ~ 56
Active principle B 1 ~ 63
Emulsifier 5～25
Solvent 5～20
Stabilizing agent 2～15
Antifreezing agent 1～5
Defoamer 0.1～3
Thickener 1～5
Water is supplied 100 parts.
The concrete production stage of this aqueous emulsion is: first active principle A and B, solvent and emulsifier, stabilizing agent are added together, make to be dissolved into uniform oil phase; Part water, antifreezing agent, defoamer are mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add thickener, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of Herbicidal combinations of the present invention.
When above-described Herbicidal combinations is water dispersible granules, in preparation, the ratio of weight and number of each component is:
Active principle A 1 ~ 56
Active principle B 1 ~ 63
Dispersant 5 ~ 20
Wetting agent 5 ~ 17
Disintegrant 2 ~ 5
Filler 10 ~ 70.
The concrete procedure of processing of this Herbicidal combinations water dispersible granules is: by above-mentioned formula, active principle A, B and dispersant, wetting agent, disintegrant and filler are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of Herbicidal combinations of the present invention.
When above-described Herbicidal combinations is cream preparation, in preparation, the ratio of weight and number of each component is:
Active principle A 1～56
Active principle B 1～63
Emulsifier 8～20
Solvent 15～50
Synergist 1～5.
The concrete production stage of this cream preparation is for first active principle A, B being added to the oily liquids that becomes transparent and homogeneous after adding again emulsifier, synergist to stir after dissolving completely in solvent, filling, can be made into the cream preparation of the present composition.
When above-described Herbicidal combinations is granule, in preparation, the ratio of weight and number of each component is:
Active principle A 1～56
Active principle B 1～63
Wetting dispersing agent 1～20
Thickener 1～15
Defoamer 1～5
Castor oil is supplied 100 parts.
By active principle A, B, each components such as dispersant, thickener, defoamer and solvent are mixed in the ratio of formula, put into after the grinding of sand milling still, send in mixer for well-distribution and mix and get product.
Above-described emulsifier is selected from least one in calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, polyoxyethylene aliphatic alcohol ether.
The above solvent is at least one in dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), water equal solvent.
Above-described dispersant is selected from least one in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid glyceride APEO.
Above-described wetting agent is selected from: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, pull open at least one in powder copper rosinate X, wetting and penetrating agent F, alkylnaphthalene sulfonate, polyoxyethylene triphenylethylene phosphenylic acid salt, spaonin powder, silkworm excrement, soapberry powder.
Above-described disintegrant is selected from: at least one in bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, sodium bicarbonate.
Above-described thickener is selected from: at least one in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol.
Above-described stabilizing agent is selected from: at least one in sodium citrate, resorcinol.
Above-described antifreezing agent is selected from: at least one in ethylene glycol, propane diols, glycerine.
Above-described defoamer is selected from: silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10at least one in aliphatic alcohols compound.
The above penetrating agent is one or both the mixture in Laurocapram, JFC.
The above pH value conditioning agent is at least one in sodium hydroxide, potassium hydroxide, ammoniacal liquor, hydrochloric acid, acetic acid, phosphoric acid or citric acid.
Above-described filler is selected from: at least one in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate.
Above-described Herbicidal combinations preparation can effectively be prevented and kill off annual gramineous weed and annual broadleaf weed, can be used safely in the crop Tanakas such as corn, soybean, peanut, cotton, wheat, barley, sunflower, not only to crop safety, and to environment, the same safety of succession crop.Can be widely used in weeds such as preventing and kill off setaria, knotgrass, Echinochloa, sorghum, piemarker, Siberian cocklebur, thorn amaranth, Chenopodium weeds, summer cypress, Polygonum weeds, Amaranthus, Datura, Solanum, Tong fiber crops genus, leaf mustard, chickweed, eleusine indica, green foxtail, moleplant seed, india lovegrass, the weeds that other classification weed killer herbicides such as intractable grass class, glyphosate tolerant grass class, anti-sulfonylurea grass class produced to resistance still possess favorable effect.
The beneficial effect of Herbicidal combinations of the present invention is: the first, and Herbicidal combinations of the present invention has remarkable synergistic effect, has improved quick-acting and the lasting effect of each composition single dose, has strengthened the stability under the external environments such as different temperatures, humidity; The second, expanded weeding general, overcome the shortcoming that isopropyl methoxalamine and flufenacet are not high to broad leaved weed preventive effect, can kill the most of weeds in annual gramineous weed and annual broadleaf weed, the rate of preventing and kill off improves greatly; The second, obviously delayed the generation of herbicide resistance, reduced agricultural chemicals Reusability number of times, reduced agricultural chemicals usage amount, reduce agricultural cost; The 3rd, easily degraded in environment after the lasting period of this Herbicidal combinations, the residual quantity of medicine on field crops is low, is more beneficial to environmental protection, improves the safety of composition to second stubble crop, significant to ecosystem environment protection.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The method that the present invention adopts indoor bioassay and field trial to combine.If no special instructions, the ratio of below mentioning (comprising percentage) is all ratio of weight and number.
Embodiment 1: will encircle 10 parts of sulphur ketone, 15 parts of isopropyl methoxalamines, 12 parts of dispersants, 8 parts of wetting agents and 65 parts of mixing of filler, uniform stirring in stirred tank is mixing after airslide disintegrating mill, makes the wetting powder of Herbicidal combinations of the present invention.
Embodiment 2: will encircle 5 parts of sulphur ketone, 26 parts of flufenacets, 10 parts of dispersants, 15 parts of wetting agents and 44 parts of mixing of filler, uniform stirring in stirred tank is mixing after airslide disintegrating mill, makes the wetting powder of Herbicidal combinations of the present invention.
Embodiment 3: will encircle 25 parts of sulphur ketone, 5 parts of isopropyl methoxalamines, 10 parts of dispersants, 13 parts of wetting agents and 47 parts of mixing of filler, uniform stirring in stirred tank is mixing after airslide disintegrating mill, makes the wetting powder of Herbicidal combinations of the present invention.
Embodiment 4: by 10 parts of dispersants, 1 part of antifreezing agent, 4 parts of thickeners, 1 part of defoamer, 59 parts of mixing of water, through high speed shear, mix, add successively 5 parts of ring sulphur ketone, 10 parts of isopropyl methoxalamines, 10 parts of flufenacets, in ball crusher, abrading-ball is 2 ~ 3 hours, make a diameter all below 5mm, make the suspending agent preparation of Herbicidal combinations of the present invention.
Embodiment 5: by 10 parts of dispersants, 2 parts of antifreezing agents, 4 parts of thickeners, 1 part of defoamer, 53 parts of mixing of water, through high speed shear, mix, add successively 20 parts of ring sulphur ketone, 5 parts of isopropyl methoxalamines, 5 parts of flufenacets, in ball crusher, abrading-ball is 2 ~ 3 hours, make a diameter all below 5mm, make the suspending agent preparation of Herbicidal combinations of the present invention.
Embodiment 6: by 10 parts of dispersants, 1 part of antifreezing agent, 4 parts of thickeners, 1 part of defoamer, 59 parts of mixing of water, through high speed shear, mix, add successively 15 parts of ring sulphur ketone, 10 parts of flufenacets, in ball crusher, abrading-ball is 2 ~ 3 hours, make a diameter all below 5mm, make the suspending agent preparation of Herbicidal combinations of the present invention.
Embodiment 7: 8 parts of 8 parts of ring sulphur ketone, 22 parts of isopropyl methoxalamines, 25 parts of solvents, 10 parts of emulsifier, stabilizing agent are mixed, be dissolved into uniform oil phase; 1 part, part water, 2 parts of antifreezing agents, defoamer is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 4 parts of thickeners, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of Herbicidal combinations of the present invention.
Embodiment 8: 8 parts of 10 parts of ring sulphur ketone, 15 parts of flufenacets, 25 parts of solvents, 10 parts of emulsifier, stabilizing agent are mixed, be dissolved into uniform oil phase; 2 parts, part water, 1 part of antifreezing agent, defoamer is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 3 parts of thickeners, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of Herbicidal combinations of the present invention.
Embodiment 9: 8 parts of 5 parts of ring sulphur ketone, 25 parts of flufenacets, 25 parts of solvents, 10 parts of emulsifier, stabilizing agent are mixed, be dissolved into uniform oil phase; 2 parts, part water, 1 part of antifreezing agent, defoamer is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 2 parts of thickeners, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of Herbicidal combinations of the present invention.
Embodiment 10: 41 parts of 20 parts of ring sulphur ketone, 15 parts of isopropyl methoxalamines, 10 parts of dispersants, 10 parts of wetting agents, 4 parts of disintegrants and fillers are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of Herbicidal combinations of the present invention.
Embodiment 11: 28 parts of 30 parts of ring sulphur ketone, 5 parts of isopropyl methoxalamines, 5 parts of flufenacets, 15 parts of dispersants, 15 parts of wetting agents, 2 parts of disintegrants and fillers are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of Herbicidal combinations of the present invention.
Embodiment 12: 36 parts of 5 parts of ring sulphur ketone, 30 parts of flufenacets, 10 parts of dispersants, 15 parts of wetting agents, 4 parts of disintegrants and fillers are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of Herbicidal combinations of the present invention.
Embodiment 13: by becoming the oily liquids of transparent and homogeneous after adding again 2 parts of 10 parts of emulsifier, synergist to stir after 8 parts of ring sulphur ketone, 12 parts of isopropyl methoxalamines, 68 parts of complete mixed dissolutions of solvent, filling, can be made into the cream preparation of the present composition.
Embodiment 14: will encircle 4 parts of sulphur ketone, 10 parts of isopropyl methoxalamines, 4 parts of flufenacets, after adding again 2 parts of 12 parts of emulsifier, synergist to stir after 68 parts of complete mixed dissolutions of solvent, become the oily liquids of transparent and homogeneous, filling, can be made into the cream preparation of the present composition.
Embodiment 15: by becoming the oily liquids of transparent and homogeneous after adding again 3 parts of 8 parts of emulsifier, synergist to stir after 16 parts of ring sulphur ketone, 6 parts of isopropyl methoxalamines, 67 parts of complete mixed dissolutions of solvent, filling, can be made into the cream preparation of the present composition.
Embodiment 16: by 8 parts of active principle ring sulphur ketone, 17 parts of flufenacets, 8 parts of dispersants, 10 parts of thickeners, 2 parts of defoamers and 55 parts of mixing of solvent castor oil, after putting into sand milling still and grinding, send into and in mixer for well-distribution, mix the granular preparation that makes the present composition.
Embodiment 17: by 15 parts of active principle ring sulphur ketone, 10 parts of isopropyl methoxalamines, 10 parts of dispersants, 12 parts of thickeners, 1 part of defoamer and 52 parts of mixing of solvent castor oil, after putting into sand milling still and grinding, send into and in mixer for well-distribution, mix the granular preparation that makes the present composition.
indoor virulence test and field experiment.
indoor virulence measuring.
1, joint toxicity measuring
Test site: test is in Laiyang Shandong Province corn experimental field.
Subjects: corn field weed---barnyard grass and blite.
Test medicine: 25% ring sulphur ketone isopropyl methoxalamine ratio of weight and number is respectively 5:20,8:17,10:15,12:13,15:10,18:7,20:5, totally 7 combinations that are mixed.
Assay method: field trial method.In barnyard grass and the spraying of blite 2-5 leaf after date phase cauline leaf, process; 750 liters/hectare of the spraying amounts of being watered, measure the weeds fresh weight of living for after dispenser 10 days, and every processing repeats for five times, adopts Colby method to judge synergy type.
Colby law theory preventive effect computing formula is:
E
0＝XY/100
E in formula
0for the theoretical preventive effect of single dose A after mixed with B; X is that weed killer herbicide A weeds weight under certain dosage is the percentage of contrast weeds weight; Y is that weed killer herbicide B weeds weight under certain dosage is the percentage of contrast weeds weight; If E is the percentage that the weeds weight of the mixed rear actual measurement of A, B is contrast weeds weight.
If E is significantly less than E
0, be synergistic effect; E and E
0, approach, be summation action; E is obviously greater than E
0, be antagonism.
Result of the test:
Table 1 ring sulphur ketone and isopropyl methoxalamine are composite to corn barnyard grass, blite joint toxicity measuring
Virulence test example shows, measured value and the theoretical value of ring sulphur ketone and isopropyl methoxalamine differ more than 10%, there is obvious gap, both are composite has notable synergistic effect, and when the ratio of weight and number that encircles sulphur ketone and isopropyl methoxalamine in 25% formulation is 10:15 and 12:13, synergistic effect is the most obvious, suggestion is done further field experiment in this scope, better to evaluate its synergistic effect.
2, joint toxicity measuring
Test site: test is in corn experimental field, Laiyang, Shandong Province.
Subjects: corn field weed---barnyard grass and blite.
Test medicine: 22% ring sulphur ketone flufenacet ratio of weight and number is respectively 5:17,7:15,9:13,11:11,13:9,15:7,17:5, totally 7 combinations that are mixed.
Assay method: field trial method.In barnyard grass and the spraying of blite 2-5 leaf after date phase cauline leaf, process; 750 liters/hectare of the spraying amounts of being watered, measure the weeds fresh weight of living for after dispenser 10 days, and every processing repeats for five times, adopts Colby method to judge synergy type.
Colby law theory preventive effect computing formula is:
E
0＝XY/100
E in formula
0for the theoretical preventive effect of single dose A after mixed with B; X is that weed killer herbicide A weeds weight under certain dosage is the percentage of contrast weeds weight; Y is that weed killer herbicide B weeds weight under certain dosage is the percentage of contrast weeds weight; If E is the percentage that the weeds weight of the mixed rear actual measurement of A, B is contrast weeds weight.
If E is significantly less than E
0, be synergistic effect; E and E
0, approach, be summation action; E is obviously greater than E
0, be antagonism.
Result of the test:
Table 2 ring sulphur ketone and flufenacet are composite to corn barnyard grass, blite joint toxicity measuring
Virulence test example shows, measured value and the theoretical value of ring sulphur ketone and flufenacet differ more than 10%, there is obvious gap, both are composite has notable synergistic effect, and when the ratio of quality and the number of copies that encircles sulphur ketone and flufenacet in 22% formulation is 7:15 and 9:13, synergistic effect is comparatively obvious, suggestion is done further field experiment in this scope, better to evaluate its synergistic effect.
field control effectiveness test 1.
In May, 2012 is in Laiyang Shandong Province agriculture university corn experimental field, corn seeding is in mid or late May, general corn ground weed is if the barnyard grass seeding stage is in the first tenday period of a month in May, peak period is at the beginning of 5 the end of month to 6 month, 2 ~ 3 leaf phases that reached that during this experiment dispenser there are field barnyard grass, with following test medicament and contrast agents, spray respectively, test region area 20m
2, repeat, within after medicine 10 days, carry out effect research for three times.During investigation, adopt accidental sampling, Sampling Area is 1m
2, investigation survival strain number.Result of the test is as follows:
Table 3 ring sulphur ketone and the composite field efficiency test of isopropyl methoxalamine
This field experiment result shows, 10% ring sulphur ketone+15% isopropyl methoxalamine is all better to the preventive effect of the weeds such as corn field grass family, nutgrass flatsedge, broadleaved herb, and the average preventive effect after 10 days is 87.9%, 99.1%, 91.4%, is obviously better than each single dose preventive effect.After emergence of corn, according to field range estimation, plant growth is normal, and before emergence of corn, within the scope of test dose, other plant growths are normal, has no plant and produces poisoning and anomaly, illustrates that it is safe to corn and other crops.And in corn field, the other biological such as locust, without obviously reducing or the phenomena of mortality, illustrates other biological free of toxic effects.
field control effectiveness test 2.
In May, 2012 is in Laiyang Shandong Province agriculture university corn experimental field, corn seeding is in mid or late May, general corn ground weed is if the barnyard grass seeding stage is in the first tenday period of a month in May, peak period is at the beginning of 5 the end of month to 6 month, 2 ~ 3 leaf phases that reached that during this experiment dispenser there are field barnyard grass, with following test medicament and contrast agents, spray respectively, test region area 20m
2, repeat, within after medicine 10 days, carry out effect research for three times.During investigation, adopt accidental sampling, Sampling Area is 1m
2, investigation survival strain number.Result of the test is as follows:
Table 4 ring sulphur ketone and the composite field efficiency test of flufenacet
This field experiment result shows, 8% ring sulphur ketone+13% flufenacet is all better to the preventive effect of the weeds such as corn field grass family, nutgrass flatsedge, broadleaved herb, and the average preventive effect after 10 days is 88.7%, 89.2%, 92.3%, is obviously better than each single dose preventive effect.According to field range estimation, corn growth is normal, and before emergence of corn, within the scope of test dose, other plant growths are normal, has no plant and produces poisoning and anomaly, illustrates that it is safe to corn and other crops.And in corn field, the other biological such as locust, without obviously reducing or the phenomena of mortality, illustrates other biological free of toxic effects.
Claims (4)
1. one kind contains the Herbicidal combinations that encircles sulphur ketone, it is characterized in that: in the preparation of this Herbicidal combinations, contain A, two kinds of active principles of B, wherein A component is ring sulphur ketone, B component is at least one in isopropyl methoxalamine, flufenacet, all the other components in preparation outside active principle are that agricultural chemicals used additives and preparation are prepared complementary component, in the preparation of this Herbicidal combinations, the ratio of weight and number of active principle A and B is 56: 1～1: 63, and in Herbicidal combinations preparation, the total weight parts of active principle A and B accounts for 1%～80% of whole total formulation weight amount part.
2. a kind of Herbicidal combinations that contains ring sulphur ketone according to claim 1, is characterized in that: in the preparation of described Herbicidal combinations, the ratio of weight and number of active principle A and B is more preferably 30: 5～5: 40.
3. a kind of Herbicidal combinations that contains ring sulphur ketone according to claim 1, is characterized in that: the percentage that in described Herbicidal combinations preparation, the total weight parts of active principle A and B accounts for whole total formulation weight amount part more preferably 5%～45%.
4. a kind of Herbicidal combinations that contains ring sulphur ketone according to claim 1, is characterized in that: the pesticidal preparations formulation that described Herbicidal combinations can be mixed with is wetting powder, suspending agent, missible oil, microemulsion, aqueous emulsion, granule and water dispersible granules.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104814016A (en) * | 2015-05-13 | 2015-08-05 | 广东中迅农科股份有限公司 | Corn field weed control composition |
| CN104886076A (en) * | 2015-06-17 | 2015-09-09 | 广东中迅农科股份有限公司 | Weeding composition for paddy fields |
| CN105010354A (en) * | 2015-08-06 | 2015-11-04 | 京博农化科技股份有限公司 | Weeding composition with tembotrione |
| GB2532218A (en) * | 2014-11-11 | 2016-05-18 | Rotam Agrochem Int Co Ltd | Herbicidal composition and method for controlling plant growth |
| CN112471160A (en) * | 2020-11-09 | 2021-03-12 | 陕西上格之路生物科学有限公司 | Tertiary weeding composition containing terbuthylazine |
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| CN1599555A (en) * | 2001-12-07 | 2005-03-23 | 拜尔作物科学有限公司 | Synergistic herbicidal agents |
| CN101141882A (en) * | 2005-03-18 | 2008-03-12 | 先正达参股股份有限公司 | Herbicidal composition |
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| CN1599555A (en) * | 2001-12-07 | 2005-03-23 | 拜尔作物科学有限公司 | Synergistic herbicidal agents |
| CN101141882A (en) * | 2005-03-18 | 2008-03-12 | 先正达参股股份有限公司 | Herbicidal composition |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2532218A (en) * | 2014-11-11 | 2016-05-18 | Rotam Agrochem Int Co Ltd | Herbicidal composition and method for controlling plant growth |
| GB2532218B (en) * | 2014-11-11 | 2019-11-20 | Rotam Agrochem Int Co Ltd | Herbicidal composition and method for controlling plant growth |
| CN104814016A (en) * | 2015-05-13 | 2015-08-05 | 广东中迅农科股份有限公司 | Corn field weed control composition |
| CN104886076A (en) * | 2015-06-17 | 2015-09-09 | 广东中迅农科股份有限公司 | Weeding composition for paddy fields |
| CN105010354A (en) * | 2015-08-06 | 2015-11-04 | 京博农化科技股份有限公司 | Weeding composition with tembotrione |
| CN112471160A (en) * | 2020-11-09 | 2021-03-12 | 陕西上格之路生物科学有限公司 | Tertiary weeding composition containing terbuthylazine |
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