CN105104405A - Weeding composition containing triflusulfuron-methyl and mefenacet - Google Patents
Weeding composition containing triflusulfuron-methyl and mefenacet Download PDFInfo
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- CN105104405A CN105104405A CN201510637998.0A CN201510637998A CN105104405A CN 105104405 A CN105104405 A CN 105104405A CN 201510637998 A CN201510637998 A CN 201510637998A CN 105104405 A CN105104405 A CN 105104405A
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- mefenacet
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Abstract
The invention relates to a weeding composition containing triflusulfuron-methyl and mefenacet and an application thereof. The composition contains triflusulfuron-methyl and mefenacet. The weight ratio of triflusulfuron-methyl and mefenacet is (1 to 10) to (1 to 50). The composition is mainly used for controlling and eliminating weeds in a paddy rice field. The composition is wide in application range, good in effect, low in cost, less in residue, and safe to human beings, animals, environment and the like.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations and application, particularly relate to a kind of Herbicidal combinations and the application thereof that contain triflusulfuronmethyl and mefenacet, be mainly used in preventing and kill off of paddy field weed.
Background technology
Triflusulfuronmethyl (Triflusulfuron-methyl, No. CAS is 126535-15-7) is for being genus sulfonylurea herbicide.Suppress acetolactic acid enzyme (ALS) synthesis of plant, block side chain amino acid biosynthesis, thus affect division and the growth of cell. originally can prevent and kill off broad leaved weed and grassy weed, and be the high post-emergence herbicide of safety.
Mefenacet (Mefenacet, CAS 73250-68-7), for being selectivity inner sucting conduction type acyl aniline herbicide, being Growth of Cells and division inhibitor, having inhibitory action strong especially to the division of the former mother cell of children.Mainly through bud scale and root absorption, conduct to young shoot and the tender leaf of weeds through xylem and phloem, stop the cell division of weed growth point to be extended, after grassy weed (barnyard grass) contacts this medicine, be gathered in growing point place very soon.To cell particularly mother cell play T suppression cell division, increase, thus hinder the growth of barnyard grass until death.Effectively can prevent and kill off grassy weed, have special efficacy to barnyard grass in rudiment to the 2 leaf phase, to moleplant seed, needle spikesedge herb, wartwort, Monochoria vaginalis, mexicana, special-shaped nutgrass flatsedge, flat nutgrass flatsedge, cyperus iria and for many years aquatic nutgrass flatsedge also have certain preventive effect.
Rational chemical herbicide is joined or mixture has expansion herbicidal spectrum, improve preventive effect, reduce dosage, reduce poisoning, minimizing remains, delays the features such as drug-fast generation and development, mixture of herbicides or mixture are one of the effective methods the most solved the problem.We are on the basis of lab screening and field trial, filter out triflusulfuronmethyl and mefenacet is composite, and this is composite has obvious synergistic effect.At present about triflusulfuronmethyl and the composite Herbicidal combinations of mefenacet and apply and there is no people at present and reported.
Summary of the invention
An object of the present invention is to overcome above-mentioned deficiency, provides that a kind of herbicidal effect is good, cost is low, herbicidal spectrum is wide and has the Herbicidal combinations containing triflusulfuronmethyl and mefenacet of synergistic effect.
Two of object of the present invention is to provide a kind of Herbicidal combinations containing triflusulfuronmethyl and mefenacet to prevent and kill off the application of paddy field weed.
The object of the present invention is achieved like this:
Contain a Herbicidal combinations for triflusulfuronmethyl and mefenacet, the active component contained by described composition is triflusulfuronmethyl and mefenacet, and the weight ratio of described triflusulfuronmethyl and mefenacet is 1-10:1-50.
The preferred weight ratio of described triflusulfuronmethyl and mefenacet is 1-5:1-40;
More preferably, the weight ratio of the two is 3:1 ~ 1:30;
Most preferred, the weight ratio of the two is 1:25.
Described combination dosage form is any one formulation that agricultural chemicals allows.Such as wetting powder, water dispersible granules, suspending agent, aqueous emulsion or missible oil etc.
Described triflusulfuronmethyl and the percentage by weight of mefenacet in above-mentioned formulation are 10 ~ 60%.
Another object of the present invention is to, a kind of application containing the Herbicidal combinations of triflusulfuronmethyl and mefenacet as above is provided, described Herbicidal combination is prevented and kill off paddy field weed for being used for; Preferably, described weeds are: barnyard grass, difformed galingale herb, Herba Cyperi Glomerati, Herba Cyperi Pilosi, red ridge nutgrass flatsedge, needle spikesedge herb, mexicana, clearvers, pondweed, Eclipta prostrata, lady's-grass, green foxtail, moleplant seed, wild water chestnut, Weedy Rice, Monochoria vaginalis, water three-coloured amaranth, the flat Sha of ball fringe, Procumbent Falsepimpernel, eleusine indica, angustifolia arrowhead herb, short arrowhead, Brittle Falsepimpernel Herb, green foxtail, bur beggar-ticks, kitchen garden etc.
Be preferred for barnyard grass, difformed galingale herb, the preventing and kill off of lady's-grass and green foxtail.
Except as otherwise noted, " % " in the application is all weight percentage.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the Herbicidal combinations provided by the invention synergistic effect of doing well in certain ratio range, the herbicidal effect of composition has had than single dose and has significantly improved, reduce Pesticide use dosage and cost simultaneously, decrease residual, also mitigate the harmful effect to environment;
(2) in the present invention, the mechanism of action of two kinds of active components is different, and the application of composition can delay or overcome resistance development, extends the service life of product;
(3) present composition can expand herbicidal spectrum, expands the scope of application.
(4) in the present invention, the active component of composition is all low-toxin farm chemicals, and along with the enforcement of China's forbidding severe toxicity, high-toxic pesticide measure, the present composition will become one of product that alternative high-toxic pesticide is the most suitable.
Embodiment
In order to be that object of the present invention, technical scheme and advantage are clearly understood, the following instantiation of the present invention is described, but the present invention is not limited to these examples.
Herbicidal combinations of the present invention for active ingredient, finds both composite after to multiple weeds have obvious synergistic function, specifically with following biologicall test example be illustrated through indoor bioassay test with triflusulfuronmethyl and mefenacet.
Biologicall test example: triflusulfuronmethyl and the composite joint toxicity measuring of mefenacet
1, subjects: barnyard grass, difformed galingale herb, lady's-grass, green foxtail and Monochoria korsakowii.
2, test method: with reference to " farm-chemical indoor determination test rule NY/T1155.4-2006 ", adopt potted plant cauline leaf method.
3, data statistic analysis: according to investigation statistics, calculates fresh weight inhibition (%).
Fresh weight inhibition P (%)=(contrast fresh weight-process fresh weight)/process fresh weight × 100%.
Synergy evaluation method:
Evaluate weed killer herbicide mode of application (NY/T1155.7-2006) according to Gowing method, its formula is as follows:
E
0＝X+Y-XY/100
In formula:
X be triflusulfuronmethyl alone with certain dosage time fresh weight inhibition to target weeds;
Y be mefenacet alone with certain dosage time fresh weight inhibition to target weeds;
E
0for the theoretical value to target weeds fresh weight inhibition when triflusulfuronmethyl and mefenacet two kinds of pharmacy mix;
E be triflusulfuronmethyl and mefenacet two kinds of pharmacy mix time measured value to target weeds fresh weight inhibition.
4, evaluation criterion: work as E-E
0synergistic effect is expressed as, as-10% < E-E during > 10%
0be expressed as summation action during < 10%, work as E-E
0antagonism is expressed as during <-10%.
5, results and analysis
The joint toxicity measuring of mixture combination to barnyard grass, difformed galingale herb, lady's-grass and green foxtail of mefenacet, triflusulfuronmethyl and the two different proportion thereof the results are shown in Table 1, table 2, table 3, table 4, table 5, in following table, " benzene " is " mefenacet ", and " fluorine " is writing a Chinese character in simplified form of " triflusulfuronmethyl ".
Table 1 mefenacet and triflusulfuronmethyl are to the synergy measurement result of barnyard grass
Indoor biometrics result shows: mefenacet and triflusulfuronmethyl carry out mixture with 200: 18,250: 15,300: 12,350: 10 and 400: 8 ratios, and it shows as addition or synergistic effect to barnyard grass.Consider anti-better composite divided by 35-50:1-3 to barnyard grass of mefenacet and triflusulfuronmethyl, with 25:1 best results.
Table 2 mefenacet and triflusulfuronmethyl are to the synergy measurement result of difformed galingale herb
Indoor biometrics result shows: indoor biometrics result shows: mefenacet and triflusulfuronmethyl carry out mixture with 200: 18,250: 15,300: 12,350: 10 and 400: 8 ratios, and it shows as synergistic effect to difformed galingale herb.Consider anti-better composite divided by 35-50:1-3 to difformed galingale herb of mefenacet and triflusulfuronmethyl.
Table 3 mefenacet and triflusulfuronmethyl are to the synergy measurement result of lady's-grass
Indoor biometrics result shows: indoor biometrics result shows: mefenacet and triflusulfuronmethyl carry out mixture with 200: 18,250: 15,300: 12,350: 10 and 400: 8 ratios, and it shows as synergistic effect to lady's-grass.Consider anti-better composite divided by 35-50:1-3 to lady's-grass of mefenacet and triflusulfuronmethyl.
Table 4 mefenacet and triflusulfuronmethyl are to the synergy measurement result of green foxtail
Indoor biometrics result shows: indoor biometrics result shows: mefenacet and triflusulfuronmethyl carry out mixture with 200: 18,250: 15,300: 12,350: 10 and 400: 8 ratios, and it shows as synergistic effect to green foxtail.Consider anti-better composite divided by 50:3 ~ 50:1 to green foxtail of mefenacet and triflusulfuronmethyl.
Table 5 mefenacet and triflusulfuronmethyl are to the synergy measurement result of Monochoria korsakowii
Indoor biometrics result shows: indoor biometrics result shows: mefenacet and triflusulfuronmethyl carry out mixture with 200: 18,250: 15,300: 12,350: 10 and 400: 8 ratios, and it shows as addition or antagonism to Monochoria korsakowii.Do not advise that mefenacet and triflusulfuronmethyl are for preventing and kill off Monochoria korsakowii.
Consider result of the test, drug cost and synergy, mefenacet and triflusulfuronmethyl carry out composite the best with 25:1.
Be described with instantiation below.
Preparation embodiment 1:
Mefenacet 25%, triflusulfuronmethyl 1%, benzene acetyl butyryl 10%, vegetable oil are added to 100%, is mixed to homogeneous liquid phase, the obtained present composition 26% missible oil.
Preparation embodiment 2:
Triflusulfuronmethyl 2%, mefenacet 50%, sodium methylene bis-naphthalene sulfonate 5%, sodium lignin sulfonate 3%, organic silicone 1%, white carbon are added to 100%, through air-flow crushing, extruder grain, the obtained present composition 52% water dispersible granules.
Preparation embodiment 3:
By triflusulfuronmethyl 0.8%, mefenacet 19.2%, dodecyl sodium sulfate 5%, polyoxyethylene nonylphenol ether 4%, xanthans 0.3%, polyethylene glycol 3%, add water to 100%, mixing is through wet grinding, homogenizing, the obtained present composition 20% suspending agent.
Preparation embodiment 4:
Triflusulfuronmethyl 2%, mefenacet 50%, polyoxyethylene carboxylate 6%, sodium lignin sulfonate 3%, white carbon 5%, kaolin are added to 100%, mixes and obtain the present composition 52% wetting powder through air-flow crushing.
Preparation embodiment 5:
By triflusulfuronmethyl 0.5%, mefenacet 24.5%, 1-METHYLPYRROLIDONE 20%, phenethyl phenol polyethenoxy ether 10%, ethylene glycol 5%, add water to 100%, preparation oil phase, preparation aqueous phase, under high shear, to add in oil phase in oil phase aqueous phase or by aqueous phase, shear the obtained present composition 25% aqueous emulsion.
Field control effectiveness test example
Test medicine: above-mentioned example 1-3.
Contrast medicament: 20% triflusulfuronmethyl water dispersible granules, 50% mefenacet wetting powder.
For studying thing: paddy rice, the rice is doing well, without other sick weeds.
Prevent and kill off object: difformed galingale herb, barnyard grass, green foxtail, lady's-grass.
Test method: according to the area of experimental plot, the good various medicament of precise, and after being watered dilution, carry out even spraying with knapsack sprayer.
Within 7 days, 14 days after medicine, weeds death condition is observed respectively after test, and the activity of weeding of more various medicament.Result of the test is in table 6.
Table 6 mefenacet and the composite preventive effect to paddy field weed of triflusulfuronmethyl
To sum up described in table, herbicidal composition of the present invention is all significantly higher than the preventive effect of contrast medicament 50% mefenacet wetting powder, 20% triflusulfuronmethyl water dispersible granules to the preventive effect of difformed galingale herb, barnyard grass, green foxtail, barnyard grass, in land for growing field crops uses, obvious synergistic effect is had after triflusulfuronmethyl of the present invention and mefenacet mixture are described, saved dosage simultaneously, thus save drug cost, expand weed control scope.
A kind of Herbicidal combinations containing triflusulfuronmethyl and mefenacet of the present invention is described by concrete example, those skilled in the art can use for reference content of the present invention, the benzene joints such as suitable feed change, process conditions realize other object corresponding, its relevant change does not all depart from content of the present invention, all similar replacements and change will become apparent to those skilled in the art that and be all deemed to be included within scope of the present invention.
Claims (9)
1. contain a Herbicidal combinations for triflusulfuronmethyl and mefenacet, it is characterized in that, the active component contained by described composition is triflusulfuronmethyl and mefenacet, and the weight ratio of described triflusulfuronmethyl and mefenacet is 1-10:1-50.
2. Herbicidal combinations according to claim 1, is characterized in that, the weight ratio of described triflusulfuronmethyl and mefenacet is 1-5:1-40.
3. Herbicidal combinations according to claim 1, is characterized in that, the weight ratio of described triflusulfuronmethyl and mefenacet is 3:1 ~ 30:1.Be not inconsistent with claim 1, whether should change 3:1 ~ 1:30 into
4. Herbicidal combinations according to claim 1, is characterized in that, the weight ratio of described triflusulfuronmethyl and mefenacet is 1:25.
5., according to the arbitrary described Herbicidal combinations of Claims 1-4, it is characterized in that, described combination dosage form is wetting powder, water dispersible granules, suspending agent, aqueous emulsion or missible oil.
6. Herbicidal combinations according to claim 5, is characterized in that, described triflusulfuronmethyl and the percentage by weight of mefenacet in above-mentioned formulation are 10 ~ 60%.
7. the Herbicidal combinations as described in as arbitrary in Claims 1-4 prevents and kill off the application of paddy field weed.
8. application according to claim 7, described paddy field weed is barnyard grass, difformed galingale herb, Herba Cyperi Glomerati, Herba Cyperi Pilosi, red ridge nutgrass flatsedge, needle spikesedge herb, mexicana, clearvers, pondweed, Eclipta prostrata, lady's-grass, green foxtail, moleplant seed, wild water chestnut, Weedy Rice, Monochoria vaginalis, water three-coloured amaranth, the flat Sha of ball fringe, Procumbent Falsepimpernel, eleusine indica, angustifolia arrowhead herb, short arrowhead, Brittle Falsepimpernel Herb, green foxtail, bur beggar-ticks or kitchen garden.
9. application according to claim 8, described paddy field weed is in barnyard grass, difformed galingale herb, lady's-grass or green foxtail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510637998.0A CN105104405A (en) | 2015-09-30 | 2015-09-30 | Weeding composition containing triflusulfuron-methyl and mefenacet |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231824A (en) * | 1999-03-08 | 1999-10-20 | 梁东海 | Herbicide for paddy field |
| CN1303595A (en) * | 2000-01-07 | 2001-07-18 | 吴应多 | Disposable weedicide for rice field |
| CN102550583A (en) * | 2012-01-13 | 2012-07-11 | 河南金田地农化有限责任公司 | Herbicidal combination for paddy fields |
| CN102812962A (en) * | 2012-09-12 | 2012-12-12 | 联保作物科技有限公司 | Rice-field weeding composition and preparation thereof |
| CN103371159A (en) * | 2012-04-27 | 2013-10-30 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing cyclosulfamuron and amides |
| CN103798267A (en) * | 2014-02-27 | 2014-05-21 | 江苏省激素研究所股份有限公司 | Herbicide composition used in direct-seeding rice fields |
| CN104012563A (en) * | 2014-05-30 | 2014-09-03 | 广东中迅农科股份有限公司 | A weeding composition comprising flucetosulfuron and mefenacet |
-
2015
- 2015-09-30 CN CN201510637998.0A patent/CN105104405A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231824A (en) * | 1999-03-08 | 1999-10-20 | 梁东海 | Herbicide for paddy field |
| CN1303595A (en) * | 2000-01-07 | 2001-07-18 | 吴应多 | Disposable weedicide for rice field |
| CN102550583A (en) * | 2012-01-13 | 2012-07-11 | 河南金田地农化有限责任公司 | Herbicidal combination for paddy fields |
| CN103371159A (en) * | 2012-04-27 | 2013-10-30 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing cyclosulfamuron and amides |
| CN102812962A (en) * | 2012-09-12 | 2012-12-12 | 联保作物科技有限公司 | Rice-field weeding composition and preparation thereof |
| CN103798267A (en) * | 2014-02-27 | 2014-05-21 | 江苏省激素研究所股份有限公司 | Herbicide composition used in direct-seeding rice fields |
| CN104012563A (en) * | 2014-05-30 | 2014-09-03 | 广东中迅农科股份有限公司 | A weeding composition comprising flucetosulfuron and mefenacet |
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