CN102027919A - Synergistic herbicide composition containing fluroxypyr and pendimethialin and application thereof - Google Patents
Synergistic herbicide composition containing fluroxypyr and pendimethialin and application thereof Download PDFInfo
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- CN102027919A CN102027919A CN2009100361691A CN200910036169A CN102027919A CN 102027919 A CN102027919 A CN 102027919A CN 2009100361691 A CN2009100361691 A CN 2009100361691A CN 200910036169 A CN200910036169 A CN 200910036169A CN 102027919 A CN102027919 A CN 102027919A
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Abstract
The invention discloses a synergistic herbicide composition containing fluroxypyr and pendimethialin and application thereof. In the herbicide, the fluroxypyr and the pendimethialin are taken as the main active ingredients; and the mass ratio of the fluroxypyr to the pendimethialin is 1-70: 1-70. The synergistic herbicide composition has can be used for controlling post-emergence weeds in corn field, and particularly has an obvious effect of controlling various graminaccae and broadleaf weeds in the corn field. Compared with single-composition herbicide, the herbicide composition postpones the resistance of weeds, has a broad herbicide spectrum and acts for a long time on the premise of improving the herbicide effect, and is safe for corns and the afterculture crops.
Description
Technical field
The invention belongs to technical field of pesticide, especially the weed killer herbicide field relates to the binary built agent of fluroxypyr and Pendimethalin.This herbicidal composition can be applicable to cornfield weeding.
Background technology
Corn is the staple food crop of China, and corn is at national cultivated area 0.2 hundred million hm.With the corn is about example, divides spring sowing, summer sowing, and three provinces in the northeast of China, Xinjiang mainly are spring corns, and the Yellow River and Huai He River Haiti district mainly is a summer corn.It is reported that national corn has 1/2 area to be subjected in various degree crop smothering approximately, serious crop smothering area is about 10～20%, if not weeding of field can make the corn underproduction more than 50%.In order to reduce the economic loss that crop smothering causes, reduce labor intensity, also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is accepted by people gradually simultaneously.
Fluroxypyr (Fluroxypyr Methyl) has another name called that to make it swell, control green bristlegrass spirit, fluorine grass fixed, chemical name: 4-amino-3, and 5-two chloro-6-fluoro-2-pyridine fluoroacetic acid, its structural formula is:
Fluroxypyr is the cauline leaf inorganic agent, the inner sucting conduction type herbicide after seedling.Very fast behind the medicine by plant absorbing, make sensitive plant the reaction of typical hormone herbicide occur, the plant deformity is twisted.Temperature does not have influence to the final effect of its weeding, but influences the speed of its drug effect performance.Generally the drug effect performance is slower when temperature is low, stops growing, but dead immediately the temperature very fast death of back plant that raises after can making dunsiekte.Be applicable to that ground such as corn, barley, corn, grape, orchard, pasture, forest land, lawn prevent and kill off broad leaved weed; As Herba Galii Teneri, volume stem knotweed, kitchen garden, black nightshade, chickweed, field bindweed, knotweed, amaranth etc., invalid to grassy weed.But fluroxypyr is invalid to grassy weed, and use can't be measured and kill the grassy weed that removes in the corn field separately, therefore, mostly is and uses with.
Pendimethalin (pendimethalin), a kind of dinitroaniline herbicide, chemical name: N-(1-ethyl propyl)-2,6-dinitro-3, the 4-dimethylaniline, its structural formula is:
Pendimethalin is a meristematic cell division inhibitor, does not influence the sprouting of weed seed.Young shoot, young stem, young root absorb behind the medicament and work in the suppressing weed seed germination process.Prevent and kill off annual gramineous weed and some broad leaved weed in the corn field.As: weeds such as lady's-grass, eleusine indica, barnyard grass grass, Amaranthus retroflexus, kitchen garden.But Pendimethalin is limited to part broad leaved weed preventive effect, and especially the preventive effect of perennial broadleaf weed is relatively poor, has seriously restricted its use in the corn field chemical weed control.
Corn field herbicide is limit by crop safety at present, it is also limited to kill the grass spectrum, be used alone the agent of weed killer herbicide list and can not control the generation of corn field weed completely effectively, moreover some weed killer herbicide is because water-soluble big or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all causes easily this season crop or succession crop of dispenser.Therefore, the present invention selects to kill grass spectrum difference, being made into mixture after two kinds of suitable decrements of weed killer herbicide of the fluroxypyr of pluses and minuses complementation and Pendimethalin uses, so both enlarged and killed the grass spectrum, obviously improved herbicidal effect, also avoided this season is done the deposits yields poisoning and succession crop produced the possibility of residual hazard.
Summary of the invention
The purpose of this invention is to provide a kind of Synergistic herbicide compositions that contains fluroxypyr and Pendimethalin.
Another object of the present invention provides this weed killer herbicide is used for the weed killer herbicide of cornfield weeding in preparation application.
A kind of Synergistic herbicide compositions that contains fluroxypyr and Pendimethalin, this weed killer herbicide is main active ingredient with fluroxypyr and Pendimethalin, the mass ratio of fluroxypyr and Pendimethalin is 1～70: 1～70.The mass ratio of preferred fluroxypyr and Pendimethalin is 1～40: 1～50, most preferably 1～10: 1～10.
In Synergistic herbicide compositions, the two quality percentage composition in weed killer herbicide of fluroxypyr and Pendimethalin is 1～85%, and the preferred mass percentage composition is 20～75%.Active ingredient of the present invention is present in the composition with the synergy effective dose.
In the binary built preparation of fluroxypyr of the present invention and Pendimethalin, except active ingredients such as fluroxypyr and Pendimethalin, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on the pesticidal preparations and be mixed with any one formulation that allows on the agricultural chemicals.Preferably be processed into wetting powder, missible oil, water dispersion granule, suspending agent, dry suspending agent or aqueous emulsion.Can adopt when using and conventional method such as spray.
Described surfactant specifically can adopt alkylphenol polyoxyethylene, phenethyl phenol polyethenoxy ether, methyl naphthalene sulfonate formaldehyde condensate, polyoxyethylene nonylphenol ether, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) etc., solid packing can be selected kaolin, diatomite etc. for use, and solvent can adopt ethylene glycol, cyclohexanone, dimethylbenzene, water etc.These auxiliary agents can singly be used or mixing and usefulness, also can add other auxiliary material that allows on the pesticidal preparations.
" % " of the present invention is weight percentage.
Synergistic herbicide compositions of the present invention can be used in the corn field postemergence weed control, particularly uses in various grass family and the broad leaved weed to have remarkable result in preventing and kill off corn field.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding height.The weeding mechanism of Pendimethalin is to suppress young shoot and the merismatic cell division of secondary root, thereby hinders the weeds growth of seedling and death, and fluroxypyr is a kind of hormone herbicide.That is to say that Herbicidal combinations of the present invention can kill weeds by two kinds of different approaches, can greatly improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Fluroxypyr is mainly prevented and kill off broad leaved weed, invalid to grassy weed, and Pendimethalin can be prevented and kill off annual standing grain herbaceous weed, comprise many monocotyledon weeds and annual nutgrass flatsedge, and useful equally to some annual broadleaf weed, both not only can prevent and kill off various broad leaved weeds after mixing, and can prevent and kill off annual standing grain herbaceous weed, herbicidal spectrum is wideer.
3, safe.Because the use content of various active ingredients has reduced, and makes medicament under the prerequisite that has improved drug effect, its safety to corn and succession crop also is improved.
Therefore, Synergistic herbicide compositions of the present invention can be used in the weed killer herbicide of preparation corn field postemergence weed control, particularly uses in preparation is used for preventing and kill off the weed killer herbicide of corn field grass family and broad leaved weed.
Embodiment
Embodiment 1
Pendimethalin 20%, fluroxypyr 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, neopelex 4%, alkylphenol polyoxyethylene 3%, thickener 2%, water supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 30% suspending agent.
Embodiment 2
Pendimethalin 30%, fluroxypyr 15%, calcium dodecyl benzene sulfonate 4%, polyoxyethylene polyoxy third rare block compound 5%, solvent naphtha supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 45% missible oil.
Embodiment 3
Pendimethalin 50%, fluroxypyr 25%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 4
Pendimethalin 35%, fluroxypyr 15%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 50% wetting powder.
Embodiment 5
Pendimethalin 35%, fluroxypyr 40%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 75% wetting powder.
Embodiment 6
Pendimethalin 50%, fluroxypyr 25%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 75% wetting powder.
Embodiment 7
Pendimethalin 1%, fluroxypyr 19%, calcium dodecyl benzene sulfonate 4%, polyoxyethylene polyoxy third rare block compound 5%, dimethylbenzene 20%, water supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 20% aqueous emulsion.
Embodiment 8
Pendimethalin 2%, fluroxypyr 1%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, polyoxyethylene polyoxy third rare block compound 5%, sodium lignin sulfonate 100%, being mixed with the quality percentage composition according to the formulation method of routine is 3% dry suspending agent.
Embodiment 9
1), indoor active determination test
Utilize the preparation among the embodiment 1～4, measure its co-toxicity coefficient acalypha copperleaf.
Test method: the seed of quantitative acalypha copperleaf is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, in illumination box, cultivate, treat that acalypha copperleaf 3～6 leaves during the phase, do the processing of spraying on the composition spray in crawler type.Handle continuation cultivation in the greenhouse, back, routine observation is respectively handled the preventive effect to weeds, the weeds fresh weight behind the 30d after each processing of weighing, and, calculate its toxicity regression curve and co-toxicity coefficient by the abundant method of Sun Yun (nineteen sixty proposition).Co-toxicity coefficient shows that greater than 100 two kinds of active principles have synergistic effect, and co-toxicity coefficient shows that less than 100 two kinds of active principles have antagonism.Measurement result is as shown in table 1.
The indoor determination of activity result of table 1
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite illustrates that all greater than 100 the present invention has obvious synergistic effect.
2, field control effectiveness test.
Reagent agent:
Binary built Herbicidal combinations among among the embodiment 1～4 4.
The contrast medicament:
33% Pendimethalin EC (commercially available), 20% fluroxypyr EC (commercially available).
For studying thing: corn
Maize seedling was 3～5 leaf phases, grew fine, and robust plant does not have other damage by disease and insect.
Prevent and kill off object:
Corn field advantage weeds such as kitchen garden, black nightshade, barnyard grass grass, Tang horse, eleusine indica.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and after converting the water dilution, utilize knapsack sprayer, and carrying out even spraying, shower nozzle is selected the Fan spray head of weed killer herbicide special use for use.During spraying, note soup is evenly sprayed application in the experimental plot, accomplish not leak the phenomenon of spray, many sprays.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments (consumption be every mu the consumption of active ingredient).In addition, also to behind medicine, observe the condition of production of crop in 1～15d, whether crop be had poisoning to investigate medicament.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d behind the medicine) and table 3 (40d behind the medicine)
Table 2 field control effectiveness test result (20d behind the medicine)
Table 3 field control effectiveness test result (40d behind the medicine)
As can be seen, the present invention has significant preventive effect to grass family and broad leaved weed from table 2 and table 3, and synergy is remarkable, and the lasting period is long.
Table 4 medicament is to the security survey result of crop
Each corn of handling in the sub-district grows fine, and does not see any medicine spot, illustrates that various medicaments are to the equal safety of corn.
Claims (8)
1. a Synergistic herbicide compositions that contains fluroxypyr and Pendimethalin is characterized in that this weed killer herbicide is main active ingredient with fluroxypyr and Pendimethalin, and wherein, the mass ratio of fluroxypyr and Pendimethalin is 1～70: 1～70.
2. the Synergistic herbicide compositions that contains fluroxypyr and Pendimethalin according to claim 1 is characterized in that the mass ratio of fluroxypyr and Pendimethalin is 1～40: 1～50 in this weed killer herbicide.
3. according to the Synergistic herbicide compositions described in the claim 1～2, it is characterized in that the two quality percentage composition in weed killer herbicide of fluroxypyr and Pendimethalin is 1～85%.
4. according to the Synergistic herbicide compositions described in the claim 3, it is characterized in that the two quality percentage composition in weed killer herbicide of fluroxypyr and Pendimethalin is 20～75%.
5. according to the Synergistic herbicide compositions described in the claim 1, it is characterized in that it is that the auxiliary agent that allows on main active ingredient and the agricultural chemicals is mixed with any one formulation with fluroxypyr and Pendimethalin.
6. according to the Synergistic herbicide compositions described in the claim 5, it is characterized in that described formulation is wetting powder, missible oil, water dispersion granule, suspending agent, dry suspending agent or aqueous emulsion.
7. the described Synergistic herbicide compositions of claim 1 is used for the application of the weed killer herbicide of corn field postemergence weed control in preparation.
8. application according to claim 7 is characterized in that described Synergistic herbicide compositions is used for preventing and kill off application in the weed killer herbicide of various grass family of corn field and broad leaved weed in preparation.
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| CN 200910036169 CN102027919B (en) | 2009-09-28 | 2009-09-28 | Synergistic herbicide composition containing fluroxypyr and pendimethialin and application thereof |
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| CN 200910036169 CN102027919B (en) | 2009-09-28 | 2009-09-28 | Synergistic herbicide composition containing fluroxypyr and pendimethialin and application thereof |
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| CN102027919A true CN102027919A (en) | 2011-04-27 |
| CN102027919B CN102027919B (en) | 2013-01-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104488935A (en) * | 2014-11-30 | 2015-04-08 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron, fluroxypyr and pendimethalin |
| CN104686552A (en) * | 2013-12-05 | 2015-06-10 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron and pendimethalin |
Citations (2)
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| CN1599555A (en) * | 2001-12-07 | 2005-03-23 | 拜尔作物科学有限公司 | Synergistic herbicidal agents |
| CN101102671A (en) * | 2004-12-17 | 2008-01-09 | 株式会社Lg生命科学 | Synergistic herbicidal compositions |
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2009
- 2009-09-28 CN CN 200910036169 patent/CN102027919B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1599555A (en) * | 2001-12-07 | 2005-03-23 | 拜尔作物科学有限公司 | Synergistic herbicidal agents |
| CN101102671A (en) * | 2004-12-17 | 2008-01-09 | 株式会社Lg生命科学 | Synergistic herbicidal compositions |
Non-Patent Citations (2)
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| 梁微玲: "我国草坪杂草的化学防治", 《现代园艺》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104686552A (en) * | 2013-12-05 | 2015-06-10 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron and pendimethalin |
| CN104488935A (en) * | 2014-11-30 | 2015-04-08 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron, fluroxypyr and pendimethalin |
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| CN102027919B (en) | 2013-01-23 |
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