CN104521982A - Weed control composition containing triafamone and metamifop - Google Patents
Weed control composition containing triafamone and metamifop Download PDFInfo
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- CN104521982A CN104521982A CN201410821875.8A CN201410821875A CN104521982A CN 104521982 A CN104521982 A CN 104521982A CN 201410821875 A CN201410821875 A CN 201410821875A CN 104521982 A CN104521982 A CN 104521982A
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- metamifop
- ketone sulphur
- fluorine ketone
- sulphur grass
- herbicidal combinations
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Abstract
The invention relates to a weed control composition containing triafamone and metamifop. The weight part ratio of the triafamone to the metamifop is (10 to 1)-(1 to 10), and the sum of the weight of the triafamone and the metamifop accounts for 1-80 percent of the weight of the composition. According to the weed control composition disclosed by the invention, the effect of controlling annual weeds in paddy fields is obviously improved compared with that of a single agent, the usage amount of pesticides is reduced, the adverse effect of the pesticides on the ecological environment is reduced, and the weed control composition has significance on comprehensive treatment of weed resistance and has huge economic benefits and social benefits.
Description
Technical field
The present invention relates to a kind of Herbicidal composition for rice field, is with fluorine ketone sulphur grass An with metamifop is for effective ingredient, for preventing and kill off paddy field annual weed.
Background technology
Chemical method weeding is agriculturally one of Main Means controlling weeds.In recent years, because some weed killer herbicide kind large area are used alone, a lot of weeds have been caused to develop immunity to drugs.Simultaneously, grass when weeds occur is mutually complicated, not only annual and perennial weed is mixed raw, draft, liana and shrub have concurrently, and weeds emerge uneven, seed, low age, the staggered generation of weeds at advanced age, so when weed killer herbicide kind is used alone, defect in a certain respect and limitation all can be shown.
Fluorine ketone sulphur grass amine belongs to amides compound, wide spectrum selective post-emergence herbicide, mechanism of action is similar to sulfonylurea and imidazolone weed killer herbicide, all belong to acetolactate synthestase (ALS) inhibitor, to paddy rice, common wheat, Korea lawn grass, there is activity of weeding after selectivity super-high-efficient bud, without activity of weeding before bud, for preventing and kill off the various grassy weed such as Monochoria vaginalis, large fringe amur foxtail, polygonum flaccidum and the assorted effect of drawing of broad-leaved is distinguished, to paddy rice, common wheat safety.Chemical weeding speed is comparatively slow, can suppress weed growth after dispenser, but must be withered after 2 weeks.
Metamifop (Metamifop) is aryloxyphenoxypropanoates class weed killer herbicide, can be fabulous prevent and kill off most of annual gramineous weed, with great majority this type of weed killer herbicide unlike, metamifop is to rice safety, can effectively prevent and kill off paddy field main weeds, as barnyard grass, moleplant seed, lady's-grass and eleusine indica, be mainly used in transplanting and direct sowing rice field weeding.This medicine low toxicity, environmentally safe, having miscibilty widely, and be expected to for other crops and Kill weeds, is a very promising weed killer herbicide.
When fluorine ketone sulphur grass amine and the single use of metamifop, all there are certain defect and limitation.
The present inventor to fluorine ketone sulphur grass An with the mixture of metamifop conducts in-depth research, on the basis of a large amount of formula indoor screening tests and field medicine effect test, find that fluorine ketone sulphur grass An is with metamifop carries out mixture, within the scope of certain mixed ratio, obvious synergistic effect is shown to paddy field annual weed, after further study, the present invention is completed.
Fluorine ketone sulphur grass An He metamifop mixture and application there is no report at present.
Summary of the invention
Technical problem to be solved: the object of the present invention is to provide a kind of efficient, low toxicity, low cost, quick-acting are good, and the lasting period is long, is conducive to the Herbicidal combinations of the weeds in paddy field comprehensive regulation.
Another object of the present invention is to provide this Herbicidal combinations to be applied to prevents and kill off paddy field annual weed.
Technical scheme: for achieving the above object, the invention provides a kind of fluorine ketone sulphur grass An that contains with the Herbicidal combinations of metamifop, fluorine ketone sulphur grass An is with metamifop ratio of weight and number is in the composition 10:1 ~ 1:10, fluorine ketone sulphur grass An is with metamifop weight summation percentage by weight is in the composition 1 ~ 80%, and all the other are agriculturally acceptable insecticides adjuvant.
Herbicidal combinations those skilled in the art of the present invention according to known method, can select suitable pesticidal preparations auxiliary element, make the formulation that oil-suspending agent, suspending agent, wetting powder or water dispersible granules etc. are agriculturally conventional.
The auxiliary agent used in Herbicidal combinations provided by the invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, safener, thickener, pH adjusting agent, defoamer, antifreezing agent, deionized water, filler etc., all various auxiliary agents conventional in Pesticide formulation, concrete composition and consumption, according to recipe requirements, are determined through simple test.
The production technology of the various application forms of Herbicidal combinations provided by the invention all belongs to existing known technology, does not repeat them here.
The frequency of administration of the present composition and amount of application change with crops, weeds, weather condition and have small variations, can by the object using suitable dosage reach effectively control.
Herbicidal combinations provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, obvious synergistic effect is shown in certain ratio range, the control efficiency of composition is significantly improved than single dose, reduce the using dosage of agricultural chemicals, decrease times for spraying, reduce drug cost, decrease the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations provided by the invention, the combination of two kinds of active ingredients, expands herbicidal spectrum, and a drug can solve various weed problem, compensate for defect when single dose uses and limitation.
3, Herbicidal combinations provided by the invention, two kinds of active ingredient mechanism of action are different, can overcome the shortcoming that long-term single use easily produces resistance, extend the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.
4, Herbicidal combinations provided by the invention, drug effect plays rapidly, and the lasting period is long, and use cost is low, easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the following specific embodiment of the present invention is described, but the present invention is only limitted to absolutely not these examples.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as the restriction to scope of the present invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
In these embodiments, unless otherwise indicated, all percentage is all weight percentage.
Example of formulations one: 30% fluorine ketone sulphur Cao An metamifop wetting powder.
Mix entering in blender after above-mentioned formula in proportion coarse crushing, then after air-flow crushing, namely obtain 30% fluorine ketone sulphur grass amine metamifop wetting powder.
Example of formulations two: 20% fluorine ketone sulphur Cao An metamifop suspending agent.
Above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, the obtained 20% fluorine ketone sulphur Cao An metamifop suspending agent of allotment after high shear mixing.
Example of formulations three: 40% fluorine ketone sulphur Cao An metamifop water dispersible granules.
By above-mentioned formula dry pulverization process, granulation, drying, the obtained 40% fluorine ketone sulphur Cao An metamifop water-dispersible granules of screening in proportion.
Example of formulations four: 12% fluorine ketone sulphur Cao An metamifop oil-suspending agent.
By above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve uniformly oil phase; Under high velocity agitation, the obtained 25% fluorine ketone sulphur Cao An metamifop oil-suspending agent of mixing.
Assays Example one: fluorine ketone sulphur grass An is Yu metamifop mixture measures the synergy of paddy field weed
For understand further fluorine ketone sulphur grass An Yu metamifop mixture is to the synergy of paddy field weed, the present inventor to fluorine ketone sulphur grass An Yu metamifop mixture has carried out formula indoor screening test:
Test material:
Monochoria vaginalis (field collection Seed storage); Barnyard grass (field collection Seed storage).
Test apparatus:
Controlled illumination box; The accurate laboratory spray tower of POTTER; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method:
The purity first taking certain mass is the former medicine of 98% fluorine ketone sulphur grass amine, purity is the former medicine of 96% metamifop, add the Tween 80 aqueous solution dilution that acetone fully dissolves rear use 0.1%, be mixed with single dose mother liquor respectively, arrange serial proportioning according to mixture object, each proportioning arranges 5 ~ 7 concentration gradients.Select representative susceptible weeds seed according to single dose herbicide spectrum, be cultured to 3-5 leaf for subsequent use.By select numbering the process of weeds cauline leaf after, to be placed in illumination box incubated at room temperature 5 days, to calculate control efficiency (fresh weight), then with method of least squares calculate suppress in dense EC
50(95% confidence limit), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC50) × 100.
Theoretical toxicity index (the TTI)=percentage composition of A (in the toxicity index × mixture of the A)+percentage composition of B (in the toxicity index × mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100.
Measurement result shows (see table 1 and table 2), and fluorine ketone sulphur grass An is Yu metamifop is between mixed ratio 10:1 ~ 1:10, and synergistic effect is more obvious, and co-toxicity coefficient is more than 120.
Table 1, different ratio fluorine ketone sulphur grass An is Yu metamifop is to the synergy measurement result of Monochoria vaginalis.
Table 2, different ratio fluorine ketone sulphur grass An is Yu metamifop is to the synergy measurement result of barnyard grass
Assays Example two: fluorine ketone sulphur grass An is Yu metamifop mixture composition prevents and kill off direct seading rice field weed field control effectiveness test.
Reagent agent and dispenser dosage:
(1) 12% fluorine ketone sulphur Cao An metamifop oil-suspending agent (4% fluorine ketone sulphur grass amine: 8% metamifop), mu 30 grams, preparation (1#).
(2) 12% fluorine ketone sulphur Cao An metamifop suspending agents (3% fluorine ketone sulphur grass amine: 6% metamifop), mu 30 grams, preparation (2#).
Contrast medicament and dispenser dosage:
(1) 2.5% fluorine ketone sulphur grass amine oil-suspending agent, mu 60 grams, preparation (3#).
(2) 10% metamifop missible oil, mu 40 grams, preparation (4#).
Dispenser period: the weeds 2-3 leaf phase, be watered even spraying.
Result of the test: in table 3, as can be seen from the test results: after dispenser 15 days, Herbicidal combinations of the present invention to total preventive effect of direct seading rice annual weed all more than 83.2%; After dispenser 30 days, total preventive effect was all more than 97.6%, and significantly better than the single dose of contrast, synergistic effect is remarkable, and expands herbicidal spectrum, and quick-acting and lasting period are obviously better than single dose.
Table 3, prevent and kill off direct seading rice field broad leaved weed field control effectiveness test result
Claims (6)
1. contain a Herbicidal combinations for fluorine ketone sulphur grass amine and metamifop, it is characterized in that: effective ingredient is fluorine ketone sulphur grass amine and metamifop.
2. a kind of fluorine ketone sulphur grass An that contains according to claim 1 is with the Herbicidal combinations of metamifop, it is characterized in that: fluorine ketone sulphur grass An is with metamifop ratio of weight and number is in the composition 10:1 ~ 1:10.
3. a kind of fluorine ketone sulphur grass An that contains according to claim 1 and 2 is with the Herbicidal combinations of metamifop, it is characterized in that: fluorine ketone sulphur grass An is with metamifop weight summation percentage by weight is in the composition 1 ~ 80%.
4. a kind of fluorine ketone sulphur grass An that contains according to claim 1 or 3 is with the Herbicidal combinations of metamifop, it is characterized in that: also containing pesticidal preparations auxiliary element in described Herbicidal combinations, so that herbicidal composition makes the type being applicable to agriculturally using.
5. a kind of fluorine ketone sulphur grass An that contains according to claim 4 is with the Herbicidal combinations of metamifop, it is characterized in that: its formulation is the one in oil-suspending agent, suspending agent, wetting powder or water dispersible granules.
6. a kind of fluorine ketone sulphur grass An that contains according to claim 1 is with the Herbicidal combinations of metamifop is to prevent and kill off the application in paddy field annual weed.
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| CN104521982A true CN104521982A (en) | 2015-04-22 |
| CN104521982B CN104521982B (en) | 2018-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110150300A (en) * | 2019-04-29 | 2019-08-23 | 淮安市植保植检站 | Rice direct seeding field disposably kills envelope mixture herbicide and method |
Citations (4)
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|---|---|---|---|---|
| CN101731232A (en) * | 2010-01-13 | 2010-06-16 | 刘雪源 | Weed control foliar herbicide compositions in paddy field |
| CN101822262A (en) * | 2010-05-18 | 2010-09-08 | 东莞市瑞德丰生物科技有限公司 | Weeding composition |
| CN101946783A (en) * | 2010-09-17 | 2011-01-19 | 北京颖新泰康国际贸易有限公司 | Herbicide composition and application thereof |
| CN103826452A (en) * | 2011-07-12 | 2014-05-28 | 陶氏益农公司 | Pesticidal compositions and processes related thereto |
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2014
- 2014-12-23 CN CN201410821875.8A patent/CN104521982B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101731232A (en) * | 2010-01-13 | 2010-06-16 | 刘雪源 | Weed control foliar herbicide compositions in paddy field |
| CN101822262A (en) * | 2010-05-18 | 2010-09-08 | 东莞市瑞德丰生物科技有限公司 | Weeding composition |
| CN101946783A (en) * | 2010-09-17 | 2011-01-19 | 北京颖新泰康国际贸易有限公司 | Herbicide composition and application thereof |
| CN103826452A (en) * | 2011-07-12 | 2014-05-28 | 陶氏益农公司 | Pesticidal compositions and processes related thereto |
Non-Patent Citations (1)
| Title |
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| 赵秀梅: ""氟酮磺草胺200g•L-1悬浮剂防除水稻移栽田杂草田间药效试验"", 《黑龙江农业科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110150300A (en) * | 2019-04-29 | 2019-08-23 | 淮安市植保植检站 | Rice direct seeding field disposably kills envelope mixture herbicide and method |
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