CN104012565A - A weeding composition comprising flucetosulfuron and pretilachlor - Google Patents
A weeding composition comprising flucetosulfuron and pretilachlor Download PDFInfo
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- CN104012565A CN104012565A CN201410240976.6A CN201410240976A CN104012565A CN 104012565 A CN104012565 A CN 104012565A CN 201410240976 A CN201410240976 A CN 201410240976A CN 104012565 A CN104012565 A CN 104012565A
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- flucetosulfuron
- careless amine
- weeding composition
- pretilachlor
- herbicidal combinations
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Abstract
The invention discloses a weeding composition comprising flucetosulfuron and pretilachlor. The weeding composition comprises an effective component flucetosulfuron, and an effective component pretilachlor, with the balance being pesticide adjuvants. The weight ratio of the flucetosulfuron to the pretilachlor is 1:5-5:1. The percent of the total weight of the flucetosulfuron and the pretilachlor in the weeding composition is 5-80%. According to needs of application, the weeding composition can be prepared into one of a dispersible oil suspending agent, a suspending agent, wettable powder and water dispersible granules, and can be used for controlling annual weeds in transplant paddy fields. The effect of controlling the annual weeds in the transplant paddy fields of the weeding composition is superior to that of each single agent. The weeding composition can reduce the using amount and delay the insecticide resistance of the weeds.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations that contains flucetosulfuron and the third careless amine, is as active ingredient, for preventing and kill off transplanting rice field annual weed taking flucetosulfuron and the third careless amine.
Background technology
Chemical method weeding is one of upper Main Means of controlling weeds of agricultural.In recent years, because some weed killer herbicide kind large area are used separately, caused a lot of weeds to develop immunity to drugs.Meanwhile, grass when weeds occur is complicated mutually, grassy weed, broad leaved weed, the mixed life of nutgrass flatsedge multiclass weeds, and single variety weed killer herbicide uses can not solve farmland weed, all can show defect and limitation in a certain respect.Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay the advantage such as herbicide resistance, time and labour saving.
Flucetosulfuron belongs to sulfonylurea herbicide, be the inhibitor of acetolactate synthestase,, by suppressing the ALS enzyme of plant, stop branched-chain amino acid as valine, isoleucine, leucic biosynthesis, final destruction synthesizing of protein, disturbs synthetic and cell division and the growth of DNA.It can absorb by the root of plant, stem and leaf, causes that weed growth stops, chlorosis, apical meristem death.
The third careless amine is the paddy field herbicides special with high selectivity, to rice safety, and broad weed-killing spectrum.Weed seed absorbs medicament in germination process, and root absorption is poor, can only make the front soil treatment of bud.The third careless amine is applicable to paddy rice and prevents and kill off annual gramineae and the broad leaved weeds such as barnyard grass, bare headed barnyard grass, moleplant seed, eleusine indica, needle spikesedge herb, alisma canaliculatum, water three-coloured amaranth, difformed galingale herb, cyperus iria, false loosestrife, Monochoria vaginalis.
Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.Screening by formulation of pesticide, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means that agricultural synthesis is administered.The inventor conducts in-depth research the formula screening of flucetosulfuron and the third careless amine, find that flucetosulfuron and the third careless amine carry out mixture, in certain mixed ratio scope, transplanting rice field annual weed is had to synergy or summation action, after further study, completed the present invention.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency poor, provide a kind of efficient, low toxicity, quick-acting is good and the lasting period is long, is conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
Another object of the present invention be by this Herbicidal combinations for preventing and kill off farmland weed, be particularly useful for transplanting rice field annual weed etc.
Technical solution of the present invention: for achieving the above object, the invention provides a kind of Herbicidal combinations that contains flucetosulfuron and the third careless amine, it comprises active ingredient flucetosulfuron and the third careless amine, the ratio of quality and the number of copies of flucetosulfuron and the third careless amine is 1:5～5:1, flucetosulfuron and the third careless amine gross mass mark percentage composition in Herbicidal combinations is 5%～80%, and all the other are in agricultural chemicals, to allow to use and acceptable auxiliary element.
Herbicidal combinations those skilled in the art of the present invention can be according to known method, selects suitable pesticidal preparations auxiliary element, makes the upper conventional formulation such as the agricultural that dispersibles oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
The auxiliary agent using 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 formula requirement, 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.
Composition pesticide provided by the invention, after rice transplanting is turned green, adopts pesticide-clay mixture method to use before weeds emerge, also can adopt as required other operation techniques of the upper application of agricultural.
Herbicidal combinations provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, in certain ratio range, show obvious synergistic effect, the control efficiency of composition is significantly improved than single dose, reduce the using dosage of agricultural chemicals, reduce medication number of times, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations provided by the invention, the combination of two kinds of effective ingredients, has expanded herbicidal spectrum, and a drug can solve weeds problem, has made up defect and limitation when single dose is used.
3, Herbicidal combinations provided by the invention, two kinds of effective ingredient mechanism of action are different, can overcome long-term single use and easily produce the shortcoming of resistance, extend the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.
4, Herbicidal combinations provided by the invention, rapidly, the lasting period is long in drug effect performance, 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 present invention describes with following specific embodiment, but the present invention only limits 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 limitation of the scope of the invention.It should be pointed out that all any amendments of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.
In these embodiments, unless otherwise indicated, all percentage is all weight percentage.
Biologicall test embodiment mono-: synergy is measured.
For further understanding flucetosulfuron and the third synergy of careless amine mixture to weeds, the inventor has carried out formulation screening test to flucetosulfuron and the third careless amine mixture:
Test material:
Barnyard grass [Echinochloa crusgalli (L.) Beaw Setaria] (field collection seed).
Monochoria vaginalis [Monochoria vaginalis] (field collection seed).
Test apparatus:
Controlled illumination box; The accurate laboratory of POTTER spray tower; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method:
The purity that first takes certain mass is the former medicine of 97% flucetosulfuron, the 95% the third former medicines of careless amine, add acetone fully to dissolve the Tween 80 aqueous solution dilution of rear use 0.1%, be mixed with respectively single dose mother liquor, according to mixture object, serial proportioning be set, each proportioning arranges 5～7 concentration gradients.Select representative susceptible weeds seed according to single dose herbicide spectrum, after planting cover upper 1cm thin soil.After the weed seed of selecting numbering is carried out to soil spraying and processes, be placed in illumination box incubated at room temperature 20 days, calculate control efficiency (fresh weight preventive effect or strain preventive effect), 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 medicament EC
50/ reagent agent EC
50) × 100.
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index × mixture of A)+(percentage composition of B in toxicity index × mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index of mixture actual measurement toxicity index (ATI)/mixture (TTI)] × 100.
Measurement result shows, flucetosulfuron and the third careless amine, between mixed ratio 1:5～5:1, have obvious synergy or summation action.The mixed ratio of flucetosulfuron and the third careless amine is in the time of 1:3, obvious to the synergistic effect of barnyard grass and Monochoria vaginalis, and co-toxicity coefficient reaches respectively 145.86 and 146.37.
Table 1, different proportioning flucetosulfuron and the third careless amine are measured the synergy of barnyard grass.
Table 2, different proportioning flucetosulfuron and the third careless amine are measured the synergy of Monochoria vaginalis.
Example of formulations one: (the careless amine wetting powder of 40% flucetosulfuron third).
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, more mix and make the careless amine wetting powder of 40% flucetosulfuron third after air-flow crushing.
Example of formulations two: (the careless amine of 20% flucetosulfuron third dispersibles oil-suspending agent).
Above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve are become to even oil phase; Under high-speed stirred, mixing makes the careless amine of 20% flucetosulfuron third and dispersibles oil-suspending agent.
Example of formulations three: (the careless amine suspending agent of 20% flucetosulfuron third).
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high shear mixing, allotment makes the careless amine suspending agent of 20% flucetosulfuron third.
Example of formulations four: (the careless amine water dispersible granules of 40% flucetosulfuron third).
By above-mentioned formula, dry pulverization process, granulation, dry, screening make the careless amine water-dispersible granules of 40% flucetosulfuron third in proportion.
Field control effectiveness test embodiment mono-: to the field control effectiveness test of transplanting rice field annual weed.
Reagent agent and dispenser dosage:
The careless amine wetting powder of (1) 40% flucetosulfuron third (10% flucetosulfuron 30% the third careless amine), 480 grams of per hectare effective ingredient consumption (1#).
The careless amine of (2) 20% flucetosulfuron third dispersibles oil-suspending agent (5% flucetosulfuron 15% the third careless amine), 480 grams of per hectare effective ingredient consumption (2#).
The careless amine suspending agent of (3) 20% flucetosulfuron third (5% flucetosulfuron 15% the third careless amine), 480 grams of per hectare effective ingredient consumption (3#).
The careless amine water dispersible granules of (4) 40% flucetosulfuron third (10% flucetosulfuron 30% the third careless amine), 480 grams of per hectare effective ingredient consumption (4#).
(5) 10% flucetosulfuron wetting powders, 30 grams of per hectare effective ingredient consumption (5#).
(6) 30% the third careless amine missible oil, 450 grams of per hectare effective ingredient consumption (6#).
Dispenser period: before weeds emerge, spread pesticide-clay mixture.
Prevent and kill off object: barnyard grass, moleplant seed, Monochoria vaginalis, difformed galingale herb.
Result of the test is in table 3.As can be seen from the test results: after medicine 14 days, use Herbicidal combinations of the present invention, the emergence rate of transplanting rice field annual weed is the highest only reaches 7.5%.Visible, Herbicidal combinations of the present invention can effectively suppress weeds emerges, and expands herbicide spectrum, and synergistic effect is remarkable, and quick-acting and lasting period are obviously better than single dose.In experimentation, each medicament is showed no generation poisoning, to rice safety.
Table 3, control transplanting rice field annual weed field control effectiveness test result.
Claims (3)
1. a Herbicidal combinations that contains flucetosulfuron and the third careless amine, it is characterized in that: active ingredient is flucetosulfuron and the third careless amine, all the other are insecticides adjuvant, the mass fraction ratio of flucetosulfuron and the third careless amine is 1:5～5:1, and flucetosulfuron and the third careless amine gross mass mark percentage composition in Herbicidal combinations is 5%～80%.
2. a kind of Herbicidal combinations that contains flucetosulfuron and the third careless amine according to claim 1, is characterized in that: its formulation is the one dispersibling in oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
3. a kind of Herbicidal combinations that contains flucetosulfuron and the third careless amine described in 1 as requested, is applicable to prevent and kill off transplanting rice field annual weed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240976.6A CN104012565A (en) | 2014-05-30 | 2014-05-30 | A weeding composition comprising flucetosulfuron and pretilachlor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240976.6A CN104012565A (en) | 2014-05-30 | 2014-05-30 | A weeding composition comprising flucetosulfuron and pretilachlor |
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| CN104012565A true CN104012565A (en) | 2014-09-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106172459A (en) * | 2016-07-08 | 2016-12-07 | 广东中迅农科股份有限公司 | A kind of containing flucetosulfuron with the Herbicidal combinations of fluorine ketone sulphur grass amine |
| CN110037022A (en) * | 2018-01-15 | 2019-07-23 | 南京农业大学 | A kind of binary built agent that preventing and kill off rice planting technology field weed-piperazine pyrazosulfuron pretilachlor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022731A (en) * | 2004-09-17 | 2007-08-22 | 石原产业株式会社 | Herbicidal composition |
| CN101102671A (en) * | 2004-12-17 | 2008-01-09 | 株式会社Lg生命科学 | Synergistic herbicidal compositions |
-
2014
- 2014-05-30 CN CN201410240976.6A patent/CN104012565A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022731A (en) * | 2004-09-17 | 2007-08-22 | 石原产业株式会社 | Herbicidal composition |
| CN101102671A (en) * | 2004-12-17 | 2008-01-09 | 株式会社Lg生命科学 | Synergistic herbicidal compositions |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106172459A (en) * | 2016-07-08 | 2016-12-07 | 广东中迅农科股份有限公司 | A kind of containing flucetosulfuron with the Herbicidal combinations of fluorine ketone sulphur grass amine |
| CN110037022A (en) * | 2018-01-15 | 2019-07-23 | 南京农业大学 | A kind of binary built agent that preventing and kill off rice planting technology field weed-piperazine pyrazosulfuron pretilachlor |
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Application publication date: 20140903 |