CN104757013A - Weeding composition containing pyraclonil, fentrazamide and fenoxaprop-p-ethyl - Google Patents
Weeding composition containing pyraclonil, fentrazamide and fenoxaprop-p-ethyl Download PDFInfo
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- CN104757013A CN104757013A CN201510189247.7A CN201510189247A CN104757013A CN 104757013 A CN104757013 A CN 104757013A CN 201510189247 A CN201510189247 A CN 201510189247A CN 104757013 A CN104757013 A CN 104757013A
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- fentrazamide
- fenoxaprop
- pyraclonil
- herbicidal combinations
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Abstract
The invention relates to a weeding composition containing pyraclonil, fentrazamide and fenoxaprop-p-ethyl. Effective components comprise pyraclonil, fentrazamide and fenoxaprop-p-ethyl and the weight ratio of pyraclonil to fentrazamide to fenoxaprop-p-ethyl is (1-30) to (5-80) to (1-30). The weeding composition has the synergistic interaction effect and is mainly applied to prevention and treatment of annual weeds in paddy fields; compared with a single dosage or a binary compound, the weeding effect is obviously improved and the weeding spectrum is enlarged; and meanwhile, the pesticide use amount is reduced, the pollution to the environment is alleviated, and the generation of weed drug resistance is delayed.
Description
Technical field
The present invention relates to agricultural chemicals Herbicidal combinations and application thereof, specifically a kind of with pyraclonil, fentrazamide He the fenoxaprop Herbicidal combinations for effective ingredient ternary built, be mainly used in the control of paddy field annual weed.
Background technology
Pyraclonil (pyraclonil): belong to novel double pyrazole class herbicide for paddy field, the mechanism of action is the inhibitor of proporphyrinogen oxidase is a kind of contact killing type weed killer herbicide.Can effectively prevent and kill off all kinds of weeds, comprise barnyard grass, difformed galingale herb, pasture and water, arrowhead, Monochoria korsakowii, dichotomous fimbristylis herb, wild water chestnut, Monochoria vaginalis etc. and sulfonylurea herbicide is had to the weeds of resistance.
Fentrazamide (fentrazamide): belong to carbamyl Tetrazoline series new herbicides, the mechanism of action is cell division inhibitor.Have excellent preventive effect to the grassy weed in rice field and sedge weed, but this weed killer herbicide is only effective to part broad leaved weed, to weak effects such as false loosestrife, alternanthera philoxeroides, flat stalk Fischer grass, rhizoma alismatis, thoroughly can not prevent and kill off the broad leaved weed in rice field.
Fenoxaprop (fenoxaprop-P-ethyl): belong to aryloxyphenoxypropionic class weed killer herbicide, the mechanism of action is fatty acid synthetic inhibitor.The control of grassy weed in paddy rice, wheat, rape and Soybean and Other Crops can be widely used in, substantially invalid to broad leaved weed.
By the screening of different pesticide species compounded formula, filter out rational formula, effectively can improve the actual control efficiency to disease pest and weed, expanding prevention is composed, reduce dosage, reduce costs, alleviate the pollution to environment, delaying the drug-fast generation of disease pest and weed, is the important means of the agriculturally disease pest and weed comprehensive regulation.
The present inventor to pyraclonil, fentrazamide He fenoxaprop ternary built use conduct in-depth research, a large amount of formula indoors screening and field medicine effect test basis on, find that pyraclonil, fentrazamide are with fenoxaprop carries out ternary built, within the scope of certain compound proportion, obvious synergistic function is shown to paddy field annual weed, after further study, the present invention is completed.
Not yet find pyraclonil, fentrazamide He the relevant report of fenoxaprop ternary built at present.
Summary of the invention
The object of the present invention is to provide a kind of there is synergistic function, expand herbicide spectrum, low, the control efficiency of use cost is good is pyraclonil, fentrazamide He the Herbicidal combinations being applied to paddy field of fenoxaprop containing active ingredient.
The technical scheme realizing the object of the invention is: Herbicidal combinations of the present invention with pyraclonil, fentrazamide He fenoxaprop for active ingredient, pyraclonil, fentrazamide are with the weight ratio of fenoxaprop is 1 ~ 30:5 ~ 80:1 ~ 30, and more ratio of greater inequality is 5 ~ 20:15 ~ 70:7 ~ 25.Pyraclonil, fentrazamide are with the percentage by weight of fenoxaprop weight summation in composition pesticide is 1% ~ 85%, and all the other are allow in agricultural chemicals to use and acceptable auxiliary element.
Described auxiliary element comprises solvent, emulsifier, film forming agent, wetting agent, dispersant, antifreezing agent, thickener, disintegrant, binding agent, defoamer, stabilizing agent, bleeding agent, synergist, solid acid, carbonate, flowing regulator, liquid-carrier and solid carrier etc., it is all composition that is conventional in pesticidal preparations or permission use, be not particularly limited, concrete composition and consumption are determined by simple test according to recipe requirements.
Herbicidal combinations of the present invention can be prepared into the multiple application forms being applicable to agriculturally using, and reasonable formulation has oil-suspending agent, microemulsion, wetting powder, water dispersible granules, effervescent tablet, aqueous emulsion and film-spreading oil solution.
The production technology of the various application forms of described Herbicidal combinations all belongs to existing known technology, does not repeat them here.
Compared with prior art, the invention has the advantages that:
1, pyraclonil, fentrazamide He fenoxaprop ternary built have obvious synergistic function, use than single dose or binary built the control efficiency significantly improved weeds, expand herbicide spectrum.
2, pyraclonil, fentrazamide are with fenoxaprop ternary built, and the mechanism of action is different, can delay the generation of herbicide resistance.
3, pyraclonil, fentrazamide He fenoxaprop ternary built, decrease Pesticide use amount, reduces use cost, alleviates pollution to environment.
Embodiment
In order to understand essence of the present invention better; below in conjunction with embodiment, content of the present invention is described further; but can not limitation of the present invention be considered as; the following stated is only for explaining the present invention; for not departing from amendment that the present invention's spirit and principle make, replacement or improvement, all belong to the scope of protection of present invention.
(1) Formulation Example
In following each embodiment, active ingredient adopts the former medicine of 96% pyraclonil, the former medicine of 95% fentrazamide and the former medicine of 95% fenoxaprop, and each component percentages is weight percentage.
Embodiment 1:70% pyraclonil fentrazamide fenoxaprop water dispersible granules.
Pyraclonil 10%, fentrazamide 50%, fenoxaprop 10%, sodium butylnaphthalenesulfonate 5%, alkylphenol-polyethenoxy base ether phosphate 5%, ammonium sulfate 2%, polyethylene glycol 2%, kaolin supplies 100%.Above-mentioned active ingredient, wetting agent, dispersant, disintegrant, binding agent and solid carrier are mixed, pulverize with micro jet, through mediating, then add in fluidized-bed granulation dryer and carry out granulation, drying, screening, 70% pyraclonil fentrazamide fenoxaprop water dispersible granules can be obtained.
Embodiment 2:80% pyraclonil fentrazamide fenoxaprop water dispersible granules.
Pyraclonil 5%, fentrazamide 70%, fenoxaprop 5%, lauryl sodium sulfate 5%, fatty alcohol ethylene oxide adduct sulphate 5%, urea 2%, polyethylene glycol 2%, diatomite supplies 100%.Above-mentioned active ingredient, wetting agent, dispersant, disintegrant, binding agent and solid carrier are mixed, pulverize with micro jet, through mediating, then add in fluidized-bed granulation dryer and carry out granulation, drying, screening, 80% pyraclonil fentrazamide fenoxaprop water dispersible granules can be obtained.
Embodiment 3:50% pyraclonil fentrazamide fenoxaprop wetting powder.
Pyraclonil 5%, fentrazamide 40%, fenoxaprop 5%, neopelex 10%, alkylphenol polyoxyethylene 10%, diatomite supplies 100%.Above-mentioned active ingredient, wetting agent, dispersant and solid carrier are mixed, again through air-flow crushing after mechanical crushing, mixes, 50% pyraclonil fentrazamide fenoxaprop wetting powder can be obtained.
Embodiment 4:75% pyraclonil fentrazamide fenoxaprop wetting powder.
Pyraclonil 5%, fentrazamide 60%, fenoxaprop 10%, neopelex 10%, to methoxyl group fatty acyl anilinesulfonic acid 5%, kaolin supplies 100%.Above-mentioned active ingredient, wetting agent, dispersant and solid carrier are mixed, again through air-flow crushing after mechanical crushing, mixes, 75% pyraclonil fentrazamide fenoxaprop wetting powder can be obtained.
Embodiment 5:20% pyraclonil fentrazamide fenoxaprop oil-suspending agent.
Pyraclonil 2%, fentrazamide 15%, fenoxaprop 3%, neopelex 10%, sodium lignin sulfonate 10%, xanthans 2%, methyl oleate supplies 100%.By above-mentioned active ingredient, wetting agent, dispersant, thickener and liquid-carrier after sand milling in high speed shear dispersion, sand mill, the high dispersive formed in non-water-medium, stable suspension system, can obtain 20% pyraclonil fentrazamide fenoxaprop oil-suspending agent.
Embodiment 6:30% pyraclonil fentrazamide fenoxaprop oil-suspending agent.
Pyraclonil 5%, fentrazamide 20%, fenoxaprop 5%, neopelex 10%, alkylphenol polyoxyethylene formaldehyde condensation products 10%, aluminium-magnesium silicate 2%, ethyl oleate supplies 100%.By above-mentioned active ingredient, wetting agent, dispersant, thickener and liquid-carrier after sand milling in high speed shear dispersion, sand mill, the high dispersive formed in non-water-medium, stable suspension system, can obtain 30% pyraclonil fentrazamide fenoxaprop oil-suspending agent.
Embodiment 7:30% pyraclonil fentrazamide fenoxaprop microemulsion.
Pyraclonil 7%, fentrazamide 15%, fenoxaprop 8%, cyclohexanone 20%, polyoxyethylene alkyl amine 10%, sodium citrate 2%, organosilicon 1%, double to kill 2%, deionized water supplies 100%.Active ingredient solvent is dissolved completely, and then add emulsifier, stabilizing agent, bleeding agent, synergist mix, finally add deionized water, after fully stirring, 30% pyraclonil fentrazamide fenoxaprop microemulsion can be obtained.
Embodiment 8:35% pyraclonil fentrazamide fenoxaprop microemulsion.
Pyraclonil 5%, fentrazamide 20%, fenoxaprop 10%, cyclohexanone 20%, sorbitan fatty acid ester 10%, sodium citrate 2%, organosilicon 1%, azone 2%, deionized water supplies 100%.Active ingredient solvent is dissolved completely, and then add emulsifier, stabilizing agent, bleeding agent, synergist mix, finally add deionized water, after fully stirring, 35% pyraclonil fentrazamide fenoxaprop microemulsion can be obtained.
Embodiment 9:30% pyraclonil fentrazamide fenoxaprop effervescent tablet.
Pyraclonil 10%, fentrazamide 15%, fenoxaprop 5%, sulfosuccinic monooctyl ester sodium salt 5%, fatty alcohol ethylene oxide adduct sulphate 10%, low-substituted hydroxypropyl cellulose 2%, citric acid 15%, saleratus 15%, calcium stearate 5%, dextrin 2%, kaolin complements to 100%.Above-mentioned active ingredient, wetting agent, dispersant, disintegrant, solid acid, carbonate, flowing regulator, binding agent and solid carrier are fully mixed, then 0.3 ~ 5 μm is crushed to the broken machine of low-temperature submicron powder, then the binding agent with water furnishing pasty state is added, tablet press machine film-making is used after stirring, finally by oven dry, whole grain, detect, pack after, 30% pyraclonil fentrazamide fenoxaprop effervescent tablet can be obtained.
Embodiment 10:40% pyraclonil fentrazamide fenoxaprop effervescent tablet.
Pyraclonil 5%, fentrazamide 25%, fenoxaprop 10%, lauryl sodium sulfate 8%, alkylphenol-polyethenoxy base ether phosphate 10%, crospolyvinylpyrrolidone 2%, tartaric acid 15%, saleratus 15%, polysorbate 5%, dextrin 2%, kaolin complements to 100%.Above-mentioned active ingredient, wetting agent, dispersant, disintegrant, solid acid, carbonate, flowing regulator, binding agent and solid carrier are fully mixed, then 0.3 ~ 5 μm is crushed to the broken machine of low-temperature submicron powder, then the binding agent with water furnishing pasty state is added, tablet press machine film-making is used after stirring, finally by oven dry, whole grain, detect, pack after, 40% pyraclonil fentrazamide fenoxaprop effervescent tablet can be obtained.
Embodiment 11:35% pyraclonil fentrazamide fenoxaprop aqueous emulsion.
Pyraclonil 5%, fentrazamide 20%, fenoxaprop 10%, castor oil polyoxyethylene ether 20%, cyclohexanone 15%, propane diols 2%, silicone oil 0.5%, aluminium-magnesium silicate 0.2%, deionized water complements to 100%.First by active ingredient, emulsifier, solvent together, dissolving becomes uniform oil phase.Then again part water and antifreezing agent, defoamer, thickener are mixed, dissolve and become uniform aqueous phase.Then aqueous phase is joined oil phase while high-speed stirred in a kettle., slowly add water to and reach phase inversion point, carry out high speed shear afterwards, and add remaining water, shear about 30min, 35% pyraclonil fentrazamide fenoxaprop aqueous emulsion can be obtained.
Embodiment 12:45% pyraclonil fentrazamide fenoxaprop aqueous emulsion.
Pyraclonil 10%, fentrazamide 25%, fenoxaprop 10%, Ben-zylphenol Polyoxyethyl Ether 20%, cyclohexanone 10%, propane diols 2%, silicone oil 0.5%, polyvinyl acetate 0.2%, deionized water complements to 100%.First by active ingredient, emulsifier, solvent together, dissolving becomes uniform oil phase.Then again part water and antifreezing agent, defoamer, thickener are mixed, dissolve and become uniform aqueous phase.Then aqueous phase is joined oil phase while high-speed stirred in a kettle., slowly add water to and reach phase inversion point, carry out high speed shear afterwards, and add remaining water, shear about 30min, 45% pyraclonil fentrazamide fenoxaprop aqueous emulsion can be obtained.
Embodiment 13:15% pyraclonil fentrazamide fenoxaprop film-spreading oil solution.
Pyraclonil 3%, fentrazamide 10%, fenoxaprop 2%, nitrogen methyl pyrrolidone 15%, alkylphenol polyoxyethylene 10%, methyl laurate 10%, ethyl acetate complements to 100%.After active ingredient solvent is fully dissolved, first add dispersant, finally add film forming agent, be fully uniformly mixed to transparent, 15% pyraclonil fentrazamide fenoxaprop film-spreading oil solution can be obtained.
Embodiment 14:25% pyraclonil fentrazamide fenoxaprop film-spreading oil solution.
Pyraclonil 5%, fentrazamide 17%, fenoxaprop 3%, dimethyl formamide 15%, fatty alcohol-polyoxyethylene ether 10%, propane diols phenylate 10%, vegetable oil complements to 100%.After active ingredient solvent is fully dissolved, first add dispersant, finally add film forming agent, be fully uniformly mixed to transparent, 25% pyraclonil fentrazamide fenoxaprop film-spreading oil solution can be obtained.
(2) indoor biological determination of activity embodiment
Reagent agent: the former medicine of 96% pyraclonil, the former medicine of 95% fentrazamide and the former medicine of 95% fenoxaprop.
For examination target: Monochoria vaginalis (Monochoria vaginalis), barnyard grass (Echinochloacrusgalli).
Medicament configuration design: pyraclonil single dose is configured to 5,12,20g a.i./ha solution for standby, fentrazamide single dose is configured to 15,40,70g a.i./ha solution for standby, fenoxaprop single dose is configured to 7,16,25g a.i./ha solution for standby, pyraclonil, fentrazamide is with fenoxaprop mixture is configured to 5+15+7, 5+15+16, 5+15+25, 5+40+7, 5+40+16, 5+40+25, 5+70+7, 5+70+16, 5+70+25, 12+15+7, 12+15+16, 12+15+25, 12+40+7, 12+40+16, 12+40+25, 12+70+7, 12+70+16, 12+70+25, 20+15+7, 20+15+16, 20+15+25, 20+40+7, 20+40+16, 20+40+25, 20+70+7, 20+70+16, 20+70+25g a.i./ha solution for standby.
Test method: at the in-built quantitative soil of the polypots of high 6cm, diameter 9cm, will for 15 ~ 20 sowings of examination target weed seed in polypots, be placed in greenhouse after the fine earth that lid 0.5 ~ 1cm is thick and cultivate, treat that weeds grow to the 2-3 leaf phase and carry out spraying process, every alms bowl spraying liquid 1mL, often process repetition 4 times, and set the process not containing medicament as contrasting.After process, examination material is placed in greenhouse and cultivates, and the growing state of routine observation target weeds, estimates target damage symptoms and growth inhibition situation, and claim acrial part fresh weight after 20d, evaluates medicament to the toxicity action of target weeds with target fresh weight inhibition.
Investigation method: estimate target damage symptoms and growth inhibition situation after test process 20d, and claim acrial part fresh weight, calculate fresh weight inhibition (%).
Synergy evaluation method: evaluate weed killer herbicide mode of application (NY/T1155.7-2006) according to Colby method, its formula is: E
0=X × Y × Z/100
2, in formula, X be pyraclonil alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; Y be fentrazamide alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; Z Wei fenoxaprop alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; E
0for pyraclonil, fentrazamide He fenoxaprop three kinds of pharmacy mix time be the theoretical value of percentage of contrast to target weeds fresh weight inhibition; E is pyraclonil, fentrazamide He fenoxaprop three kinds of pharmacy mix time be the measured value of percentage of contrast to target weeds fresh weight inhibition.
Evaluation criterion: work as E
0synergistic effect is expressed as, as-10%≤E during-E>10%
0be expressed as summation action during-E≤10%, work as E
0antagonism is expressed as during-E<-10%.
As can be seen from the Toxicity Determination result of table 1 and table 2, pyraclonil and fentrazamide mixture respectively process the E to Monochoria vaginalis and barnyard grass
0-E (%) value is all greater than 10%, illustrates that three is composite and all has synergistic function to Monochoria vaginalis and barnyard grass.As can be seen here, pyraclonil, fentrazamide are with fenoxaprop Ternary has reasonability and feasibility.
Table 1, each chemicals treatment are to the Toxicity Determination result of Monochoria vaginalis
Table 2, each chemicals treatment are to the Toxicity Determination result of barnyard grass
(3) field efficacy checking embodiment
Experimental field select Monochoria vaginalis and barnyard grass that more paddy field occurs to carry out.8 process are established in test altogether, often 3 repetitions are established in process, process 1 is 30% pyraclonil fentrazamide fenoxaprop oil-suspending agent (5:20:5), process 2 is 25% pyraclonil fentrazamide oil-suspending agent (5:20), process 3 is 10% pyraclonil fenoxaprop oil-suspending agent (5:5), process 4 is 25% fentrazamide fenoxaprop oil-suspending agent (20:5), process 5 is 10% pyraclonil wetting powder, process 6 is 50% fentrazamide wetting powder, process 7 is 69 grams per liter fenoxaprop aqueous emulsions, process 8 is contrast (not dispenser not weeding), within after medicine 30 days, add up each process number of weeds amount and calculate preventive effect.
Table 3, each chemicals treatment prevent and kill off the field control effectiveness test result of paddy field weed
As can be seen from the field test results of table 3, all obviously be higher than each single dose or binary built use to the Monochoria vaginalis of paddy field and the preventive effect of barnyard grass when within after medicine 30 days, 30% pyraclonil fentrazamide fenoxaprop oil-suspending agent (5:20:5) usage amount is 70-80g.a.i./ha, in pilot survey process, do not send out it produces poisoning to paddy rice simultaneously.As can be seen here, said composition is worth applying in agricultural production.
Claims (5)
1. contain a Herbicidal combinations for pyraclonil and fentrazamide and fenoxaprop, it is characterized in that: effective ingredient is pyraclonil, fentrazamide and fenoxaprop, the weight ratio of three is 1 ~ 30:5 ~ 80:1 ~ 30.
2. according to claim 1 containing pyraclonil and fentrazamide Ji the Herbicidal combinations of fenoxaprop, it is characterized in that: pyraclonil, fentrazamide are with the weight ratio of fenoxaprop is 5 ~ 20:15 ~ 70:7 ~ 25.
3. according to claim 1 containing pyraclonil and fentrazamide Ji the Herbicidal combinations of fenoxaprop, it is characterized in that: pyraclonil, fentrazamide He fenoxaprop gross weight percentage composition is in the composition 1 ~ 85%, all the other are the auxiliary element allowing in agricultural chemicals to use.
4. according to claim 1 containing pyraclonil and fentrazamide Ji the Herbicidal combinations of fenoxaprop, it is characterized in that: the formulation of described Herbicidal combinations can be the one in oil-suspending agent, microemulsion, wetting powder, water dispersible granules, effervescent tablet, aqueous emulsion and film-spreading oil solution.
5. according to claim 1 containing pyraclonil and fentrazamide Ji the Herbicidal combinations of fenoxaprop is preventing and kill off the application in paddy field annual weed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510189247.7A CN104757013A (en) | 2015-04-18 | 2015-04-18 | Weeding composition containing pyraclonil, fentrazamide and fenoxaprop-p-ethyl |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510189247.7A CN104757013A (en) | 2015-04-18 | 2015-04-18 | Weeding composition containing pyraclonil, fentrazamide and fenoxaprop-p-ethyl |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201370A (en) * | 1995-11-15 | 1998-12-09 | 赫彻斯特-舍林农业发展有限公司 | Synergetic herbicidal mixture |
| CN1309533A (en) * | 1998-07-16 | 2001-08-22 | 阿温提斯作物科学有限公司 | Herbicide composition |
| CN1575128A (en) * | 2001-08-30 | 2005-02-02 | 拜尔农作物科学股份公司 | Selective herbicide comprising a tetrazolinone derivative |
-
2015
- 2015-04-18 CN CN201510189247.7A patent/CN104757013A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201370A (en) * | 1995-11-15 | 1998-12-09 | 赫彻斯特-舍林农业发展有限公司 | Synergetic herbicidal mixture |
| CN1309533A (en) * | 1998-07-16 | 2001-08-22 | 阿温提斯作物科学有限公司 | Herbicide composition |
| CN1575128A (en) * | 2001-08-30 | 2005-02-02 | 拜尔农作物科学股份公司 | Selective herbicide comprising a tetrazolinone derivative |
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