CN104542642A - Weeding composition containing bentazone and carfentrazone as well as penoxsulam - Google Patents
Weeding composition containing bentazone and carfentrazone as well as penoxsulam Download PDFInfo
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- CN104542642A CN104542642A CN201410821028.1A CN201410821028A CN104542642A CN 104542642 A CN104542642 A CN 104542642A CN 201410821028 A CN201410821028 A CN 201410821028A CN 104542642 A CN104542642 A CN 104542642A
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- bentazone
- penoxsuam
- azoles humulone
- herbicidal combinations
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Abstract
The invention relates to weeding composition containing bentazone and carfentrazone as well as penoxsulam. The effective components of the weeding composition are bentazone and carfentrazone as well as penoxsulam, and the weight part ratio of bentazone, carfentrazone and penoxsulam is (1-40):(1-15):(1-15). The weeding composition has a synergistic effect, expands a weeding spectrum, reduces the pesticide consumption, alleviates the environmental pollution and delays the pesticide resistance of the weeds, and an effect of preventing and removing annual weeds in paddy fields is remarkably superior to that of a separately used individual weedicide.
Description
Technical field
The present invention relates to agricultural chemicals Herbicidal combinations and application thereof, specifically a kind of Herbicidal combinations that is active ingredient with bentazone, azoles humulone and penoxsuam, is mainly used in and prevents and kill off paddy field annual weed.
Background technology
Bentazone (bentazone): selectivity contact killing type herbicide after seedling, for the process of weeds cauline leaf in seedling stage.Be mainly used in the crops such as paddy rice, soybean, peanut, wheat, prevent and kill off broad leaved weed and sedge weed, invalid to grassy weed.
Azoles humulone (fcarfentrazone-ethyl): be a kind of triazolineone contact killing type selective herbicide, is applicable to wheat, barley, paddy rice, seeding corn and other crops prevent and kill off broad leaved weed and sedge weed.
Penoxsuam (penoxsulam): belong to triazolopyrimidine sulfonamide weed killer herbicide, the multiple weeds common to paddy field, comprising barnyard grass, annual nutgrass flatsedge and multiple broadleaved herb all has good preventive effect, and the lasting period reaches 30 ~ 60 days.
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 uses the ternary built of bentazone, azoles humulone and penoxsuam and conducts in-depth research, a large amount of formula indoors screening and field medicine effect test basis on, find that bentazone, azoles humulone and penoxsuam carry 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 the relevant report of bentazone, azoles humulone and penoxsuam ternary built at present.
Summary of the invention
The object of the present invention is to provide a kind of Herbicidal combinations that there is synergistic function, expand the paddy field that herbicide is composed, use cost is low, control efficiency is good.
The technical scheme realizing the object of the invention is: a kind of Herbicidal combinations, active ingredient is bentazone, azoles humulone, penoxsuam, the ratio of weight and number of bentazone, azoles humulone, penoxsuam three kinds of active ingredients is 1 ~ 40:1 ~ 15:1 ~ 15, the weight summation percentage by weight in the composition of bentazone, azoles humulone, penoxsuam three kinds of active ingredients is 1% ~ 85%, and all the other are agriculturally acceptable insecticides adjuvant.
Described Herbicidal combinations can according to well known to a person skilled in the art method, select suitable pesticidal preparations auxiliary element, the application forms that the applicable agricultural productions such as oil-suspending agent, aqueous suspension agent, microemulsion, wetting powder, water dispersible granules, effervescent tablet and aqueous emulsion use can be processed into.
The auxiliary element that the present invention uses comprises wetting agent, stabilizing agent, dispersant, disintegrant, thickener, pH adjusting agent, defoamer, antifreezing agent, filler etc., be all auxiliary agent conventional in Pesticide formulation, concrete composition and consumption are determined by test according to recipe requirements.
Herbicidal combinations provided by the invention, is applicable to prevent and kill off paddy field annual weed.
The frequency of administration of Herbicidal combinations provided by the invention and amount of application change with crops, weeds, weather condition and have small variations, can by the object using suitable dosage reach effectively control.
Product described in the invention can the form of finished product preparation provide, and namely in composition, each material mixes, and the composition of composition also can the form of single dose provide, and directly mixes in tank or bucket, be then diluted to required concentration before using.
Compared with prior art, the invention has the advantages that:
1, bentazone, azoles humulone and penoxsuam ternary built have obvious synergistic function, use than single dose or binary built the control efficiency significantly improved weeds, expand herbicide spectrum.
2, bentazone, azoles humulone and penoxsuam ternary built, the mechanism of action is different, can delay the generation of herbicide resistance.
3, bentazone, azoles humulone and penoxsuam ternary built, decrease Pesticide use amount, reduce use cost, alleviates the 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.
Preparation formulation embodiment
In following each embodiment, active ingredient adopts 95% bentazone raw pesticide, the former medicine of 90% azoles humulone and the former medicine of 98% penoxsuam, and unless otherwise indicated, each component percentages is weight percentage.
Example of formulations 1:80% bentazone azoles humulone penoxsuam water dispersible granules.
Bentazone 60%, azoles humulone 10%, penoxsuam 10%, aryl sulfonate formaldehyde condensates 5%, polyoxyethylene aryl ether 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, 80% bentazone azoles humulone penoxsuam water dispersible granules can be obtained.
Example of formulations 2:70% bentazone azoles humulone penoxsuam wetting powder.
Bentazone 55%, azoles humulone 8%, penoxsuam 7%, sulfosuccinate 10%, polyoxyethylene aryl ether 5%, diatomite supplies 100%.Above-mentioned active ingredient, wetting agent, dispersant and solid carrier are mixed, again through air-flow crushing after mechanical crushing, mixes, 70% bentazone azoles humulone penoxsuam wetting powder can be obtained.
Example of formulations 3:25% bentazone azoles humulone penoxsuam oil-suspending agent.
Bentazone 22%, azoles humulone 1.5%, penoxsuam 1.5%, normal-butyl naphthalene sulfonate 10%, alkylphenol polyoxyethylene 10%, aluminium-magnesium silicate 2%, vegetable oil 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 25% bentazone azoles humulone penoxsuam oil-suspending agent.
Example of formulations 4:30% bentazone azoles humulone penoxsuam microemulsion.
Bentazone 23%, azoles humulone 4%, penoxsuam 3%, cyclohexanone 20%, phenethyl phenol polyoxyethylene poly-oxygen propylene aether 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, 30% bentazone azoles humulone penoxsuam microemulsion can be obtained.
Example of formulations 5:35% bentazone azoles humulone penoxsulam effervescent tablet.
Bentazone 28%, azoles humulone 4%, penoxsuam 3%, polyxyethylated alcohol 5%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 10%, crospolyvinylpyrrolidone 2%, tartaric 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, 35% bentazone azoles humulone penoxsulam effervescent tablet can be obtained.
Example of formulations 6:40% bentazone azoles humulone penoxsuam aqueous emulsion.
Bentazone 30%, azoles humulone 5%, penoxsuam 5%, castor oil polyoxyethylene ether 20%, cyclohexanone 15%, propane diols 2%, silicone oil 0.5%, polyvinyl alcohol 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, 40% bentazone azoles humulone penoxsuam aqueous emulsion can be obtained.
Example of formulations 7:25% bentazone azoles humulone penoxsuam aqueous suspension agent.
Bentazone 20%, azoles humulone 3%, penoxsuam 2%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 10%, polyxyethylated alcohol 10%, xanthans 2%, glycerine 2%, silicone oil 0.1%, deionized water supplies 100%.Above-mentioned active ingredient, dispersant, wetting agent, thickener, antifreezing agent, defoamer and deionized water are mixed, sand milling in high speed shear dispersion, sand mill, the high dispersive formed in water-medium, stable suspension system, can obtain 25% bentazone azoles humulone penoxsuam aqueous suspension agent.
Assays Example 1: indoor biological determination of activity.
Reagent agent: 95% bentazone raw pesticide, the former medicine of 90% azoles humulone and the former medicine of 98% penoxsuam.
For examination target: Monochoria vaginalis (Monochoria vaginalis), barnyard grass (Echinochloa crusgalli).
Medicament configuration design: bentazone single dose is configured to 50,150,250g.a.i./ha solution for standby; Azoles humulone single dose is configured to 2,6,10g.a.i./ha solution for standby; Penoxsuam single dose is configured to 1,5,9g.a.i./ha solution for standby; Bentazone, azoles humulone and penoxsuam mixture are configured to 50+2+1,50+2+5,50+2+9,50+6+1,50+6+5,50+6+9,50+10+1,50+10+5,50+10+9,150+2+1,150+2+5,150+2+9,150+6+1,150+6+5,150+6+9,150+10+1,150+10+5,150+10+9,250+2+1,250+2+5,250+2+9,250+6+1,250+6+5,250+6+9,250+10+1,250+10+5,250+10+9g.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 bentazone alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; Y be azoles humulone alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; Z be penoxsuam alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; E
0for when bentazone, azoles humulone and penoxsuam three kinds of pharmacy mix to target weeds fresh weight inhibition being the theoretical value of the percentage contrasted; E is bentazone, azoles humulone and penoxsuam 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, bentazone, azoles humulone and penoxsuam 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, bentazone, azoles humulone and penoxsuam Ternary have 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
Assays Example 2: field control effectiveness test
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 25% bentazone azoles humulone penoxsuam oil-suspending agent (22:1.5:1.5), process 2 is 23.5% bentazone azoles humulone oil-suspending agent (22:1.5), process 3 is 23.5% bentazone penoxsuam oil-suspending agent (22:1.5), process 4 is 3% azoles humulone penoxsuam oil-suspending agent (1.5:1.5), process 5 is 25% bentazone suspending agent, process 6 is 10% azoles humulone wetting powder, process 7 is that 25 grams per liter penoxsuams dispersible oil-suspending agent, 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, 25% bentazone azoles humulone penoxsuam oil-suspending agent (22:1.5:1.5) usage amount is 200-300g.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 (4)
1. one kind contains the Herbicidal combinations of bentazone and azoles humulone and penoxsuam, it is characterized in that: active ingredient is bentazone, azoles humulone, penoxsuam, the ratio of weight and number of bentazone, azoles humulone, penoxsuam three kinds of active ingredients is 1 ~ 40:1 ~ 15:1 ~ 15, and the weight summation percentage by weight in the composition of bentazone, azoles humulone, penoxsuam three kinds of active ingredients is 1% ~ 85%.
2. a kind of Herbicidal combinations containing bentazone and azoles humulone and penoxsuam according to claim 1, is characterized in that: described Herbicidal combinations also contains pesticidal preparations auxiliary element, to make the application forms of applicable agricultural use.
3. a kind of Herbicidal combinations containing bentazone and azoles humulone and penoxsuam according to claim 2, is characterized in that: its formulation is the one in oil-suspending agent, aqueous suspension agent, microemulsion, wetting powder, water dispersible granules, effervescent tablet and aqueous emulsion.
4. a kind of Herbicidal combinations containing bentazone and azoles humulone and penoxsuam according to claim 1 is to prevent 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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| CN201410821028.1A CN104542642A (en) | 2014-12-24 | 2014-12-24 | Weeding composition containing bentazone and carfentrazone as well as penoxsulam |
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| CN201410821028.1A CN104542642A (en) | 2014-12-24 | 2014-12-24 | Weeding composition containing bentazone and carfentrazone as well as penoxsulam |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103188937A (en) * | 2010-08-30 | 2013-07-03 | 陶氏益农公司 | Synergistic herbicidal composition containing penoxsulam and bentazon |
| WO2014033240A1 (en) * | 2012-08-31 | 2014-03-06 | Basf Se | Use of an agrochemical composition with fungicidal, herbicidal and plant health improving action in rice |
| CN103798255A (en) * | 2009-08-28 | 2014-05-21 | 陶氏益农公司 | Weed killer composition containing penoxsulam |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103798255A (en) * | 2009-08-28 | 2014-05-21 | 陶氏益农公司 | Weed killer composition containing penoxsulam |
| CN103188937A (en) * | 2010-08-30 | 2013-07-03 | 陶氏益农公司 | Synergistic herbicidal composition containing penoxsulam and bentazon |
| WO2014033240A1 (en) * | 2012-08-31 | 2014-03-06 | Basf Se | Use of an agrochemical composition with fungicidal, herbicidal and plant health improving action in rice |
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Application publication date: 20150429 |
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