CN104604852B - A kind of Herbicidal combinations containing Mediben and pretilachlor and application thereof - Google Patents
A kind of Herbicidal combinations containing Mediben and pretilachlor and application thereof Download PDFInfo
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- CN104604852B CN104604852B CN201310537235.XA CN201310537235A CN104604852B CN 104604852 B CN104604852 B CN 104604852B CN 201310537235 A CN201310537235 A CN 201310537235A CN 104604852 B CN104604852 B CN 104604852B
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Abstract
The invention discloses a kind of Herbicidal combinations containing Mediben and pretilachlor and application thereof, this Herbicidal combinations with Mediben with pretilachlor as principle active component, Mediben is 1～60:1～60 with the mass ratio of pretilachlor.Herbicidal combinations of the present invention can be used for rice terrace postemergence weed control, has remarkable result especially for preventing and kill off grass family and broad leaved weed in rice terrace.Herbicidal combinations of the present invention on the premise of improve drug effect, delays Weed Resistance relative to single dose, and herbicidal spectrum is wide, and the lasting period is long, and Oryza sativa L. and succession crop are all had safety.
Description
Technical field
The invention belongs to technical field of pesticide, especially herbicide field, be specifically related to the binary built of a kind of Mediben and pretilachlor
Herbicidal combinations, this Herbicidal combinations can be applicable to rice terrace postemergence weed control.
Background technology
Mediben, has another name called wheat straw prestige；Dicamba.Chemical name: 3,6-bis-chloro-2-methoxybenzoic acid, structural formula is:
Mediben belongs to hormone herbicide.There is Uptake and translocation effect, annual and perennial broadleaf weed are had notable preventive effect.
Mediben is sprayed after the Seedling, and medicament can be quickly by the leaf of weeds, stem, root absorption, by phloem and xylem to conducting up and down,
Focus mostly at the vigorous position of separate living tissue and metabolic activity, hinder the normal activity of phytohormone, so that it is dead.With rear one
As 24h broad leaved weed i.e. there will be deformity curling symptom, 15～20d is dead.
Pretilachlor, the chloro-N-of chemical name: 2-(1-methyl-2-methoxyethyl)-N-(2-ethyl-6-aminomethyl phenyl) acetamide, belong to amide
Class herbicide, structural formula:
Pretilachlor mainly suppresses the growth of cell by hindering the synthesis of protein, and has photosynthesis and Repiration indirectly
Impact.Medicament can pass through plant hypocotyl, mesocotyl and plumule and absorb, and root slightly absorbs, and does not affect germination, can only
Seedling is made to be poisoned.By affecting cell permeability of the membrane, ionic absorption is made to reduce, film seepage, the effectively division times suppression of cell,
Suppress the synthesis of protein and the formation of polysaccharide, also remote-effects photosynthesis and Repiration simultaneously.The symptom of poisoning is acrospire
Be not unearthed or stretch out from bud scale side, distortion can not normal extension, leaf complexion changed is dark green, and growth promoter stops, until dead.These product
For preemergence herbicide, it is mainly used in preventing and kill off grassy weed.Product belongs to 2-acetyl chloride and replaces phenyl amines herbicide, is cell division
Inhibitor, can prevent and kill off barnyard grass in paddy field, Herba Cyperi Difformis, Herba Eleocharitis acicularis, Herba monochoriae vaginalis, alisma canaliculatum etc. for soil treatment.
Herbicide for paddy field is limited by crop safety at present, and weed control spectrum is the most limited, and being used alone a kind of herbicide single dose can not be complete
Efficiently control the generation of paddy field weed, furthermore some herbicide owing to water solublity is big or the field lasting period is oversize, consumption is excessive or
The uneven residual hazard all easily caused this season crop or succession crop of dispenser.Therefore, the present invention select can weed control spectrum different,
It is made into mixture use after the Mediben of pluses and minuses complementation and two kinds of suitable decrements of herbicide of pretilachlor, the most both expands weed control spectrum, bright
Show and improve herbicidal effect, it also avoid and this season crop is produced poisoning and succession crop is produced the probability of residual hazard.
Summary of the invention
It is an object of the invention to provide a kind of Herbicidal combinations containing Mediben Yu pretilachlor.
It is a further object of the present invention to provide the application in agent for removing grass in paddy field of this Herbicidal combinations.
A kind of Herbicidal combinations containing Mediben Yu pretilachlor, it is characterised in that this Herbicidal combinations is effective with Mediben and pretilachlor
Composition, the mass ratio of Mediben and pretilachlor is 1～60:1～60, preferably 1～60:1～30, more preferably 29～
60:1～5, most preferably 12～59:1.
In Herbicidal combinations, Mediben and both pretilachlor weight/mass percentage composition in Herbicidal combinations are 1～80%, preferably
Weight/mass percentage composition is 10～65%, and further preferred weight/mass percentage composition is 30～65%.
In the binary built compositions of the Mediben of the present invention and pretilachlor, in addition to Mediben with pretilachlor effective ingredient, it is also possible to
The auxiliary agents such as conventional surfactants, thickening agent, solvent or the solid packing allowed on interpolation pesticidal preparations are configured on pesticide permission
Any one dosage form.Preferably it is processed into cream, suspending agent, aqueous emulsion, microemulsion, water dispersion granule, wettable powder etc..
Herbicidal combinations of the present invention can be applied in rice terrace postemergence weed control, particularly grass family and wealthy in preventing and kill off rice terrace
In leaf weeds, application has remarkable result.
The Herbicidal combinations of the present invention has the advantage that
1, activity of weeding is high.The Herbicidal combinations of the present invention can kill weeds by two kinds of different mechanism so that weeds resist
Property produce speed reduce, be greatly enhanced the removing activity of herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Pretilachlor is broad spectrum weeding agent, is mainly used in preventing and kill off barnyard grass, Herba Digitariae, a thousand pieces of gold
The annual gramineous weeds such as son, double control the annual broadleaved herb of part and dried tuber, and Mediben is the weeding preventing and kill off broad leaved weed
Agent.After both mixing, it is possible to increase to multiple grassy weed and the preventing and treating of broad leaved weed.
3, Weed Resistance is delayed.Herbicidal combinations of the present invention passes through binary built, reduces the weeds resistance to medicament, and carries
The preventive effect of high antagonism weeds, thus extend the service life of medicament.
4, safety is high.Owing to its using dosage is under control, making medicament on the premise of improve drug effect, it is to water
The safety of rice and succession crop have also been obtained raising.
The Herbicidal combinations of the present invention, is applied to rice terrace postemergence weed control, and it can prevent and kill off various grass family and broad-leaved in rice terrace
Weeds, on the premise of improve drug effect, all have safety to Oryza sativa L. and succession crop.
Therefore, Herbicidal combinations of the present invention can be applied in the herbicide of rice terrace postemergence weed control in preparation, particularly exists
Preparation is applied in the herbicide of grass family and broad leaved weed for preventing and kill off in rice terrace.
Detailed description of the invention
Embodiment 1
Mediben 34%, pretilachlor 1%, alkylphenol polyoxyethylene 4%, phenethyl phenol polyethenoxy ether 15%, dimethylbenzene is extremely
100%, it is configured to, according to conventional formulation method, the cream that weight/mass percentage composition is 35%.
Embodiment 2
Mediben 29%, pretilachlor 1%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, magnesium silicate
Aluminum 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus is water, is configured to matter according to conventional formulation method
Amount percentage composition is the suspending agent of 30%.
Embodiment 3
Mediben 59%, pretilachlor 1%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%,
Kaolin, to 100%, is configured to, according to conventional formulation method, the water dispersion granule that weight/mass percentage composition is 60%.
Embodiment 4
Mediben 60%, pretilachlor 5%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, Kaolin is extremely
100%, it is configured to, according to conventional formulation method, the wettable powder that weight/mass percentage composition is 65%.
Embodiment 5
Mediben 3%, pretilachlor 12%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, magnesium silicate
Aluminum 0.5%, ethylene glycol 7%, tributyl phosphate 2%, solvent naphtha 20%, water to 100%, according to conventional formulation method preparation
Becoming weight/mass percentage composition is the aqueous emulsion of 15%.
Embodiment 6
Mediben 1%, pretilachlor 9%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, magnesium silicate
Aluminum 0.5%, ethylene glycol 7%, tributyl phosphate 2%, water to 100%, it is configured to percent mass according to conventional formulation method and contains
Amount is the microemulsion of 10%.
Embodiment 7
Mediben 10%, pretilachlor 50%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, Kaolin
To 100%, it is configured to, according to conventional formulation method, the wettable powder that weight/mass percentage composition is 60%.
Embodiment 8
Mediben 20%, pretilachlor 31%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, silicic acid
Magnalium 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus is water, is configured to according to conventional formulation method
Weight/mass percentage composition is the suspending agent of 51%.
Embodiment 9
Mediben 19%, pretilachlor 60%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%,
Kaolin, to 100%, is configured to, according to conventional formulation method, the water dispersion granule that weight/mass percentage composition is 79%.
Embodiment 10
Mediben 5%, pretilachlor 5%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, Kaolin is extremely
100%, it is configured to, according to conventional formulation method, the wettable powder that weight/mass percentage composition is 10%.
Embodiment 11
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure its co-toxicity coefficient to rice terrace common weed Herba monochoriae vaginalis.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative Herba monochoriae vaginalis, sows 10～15 in every glass
Grain seed, cultivates in illumination box, when the 3～6 leaf phase of Herba monochoriae vaginalis, makees to carry out on composition spray spraying treatment in crawler type.
Continuing in greenhouse after process to cultivate, routine observation respectively processes the preventive effect to weeds, weighs the weeds fresh weight after each process after 30d,
Calculate its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is more than 100, shows that two kinds of active substance have potentiation, altogether poison
Coefficient is less than 100, shows that two kinds of active substance have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity measurement result
As can be seen from the above table, the co-toxicity coefficient after two kinds of active substance are compounding is both greater than 100, illustrates that the present invention has significantly
Potentiation.
2), field control effectiveness test.
Reagent agent:
4 kinds of re-compounded binary herbicides in embodiment 1～4.
Comparison medicament:
48% dicamba aqueous solution (commercially available), 50% pretilachlor cream (commercially available).
For studying thing: Oryza sativa L.
Rice seedlings grows fine, robust plant, without other pest and disease damages.
Prevent and kill off object:
The weeds such as barnyard grass, Herba Digitariae, Semen Euphorbiae, Herba Setariae Viridis, Herba Digitariae, Herba chenopodii, Herba Amaranthi tricoloris, smartweed.
Test method:
According to the area of experimental plot, the good various medicaments of precise, and after being watered dilution, utilize knapsack sprayer, carry out all
Even spraying, the Fan spray head that sprinkler selection herbicide is special.During spraying, it should be noted that medicinal liquid is uniformly sprayed application in experimental plot, does
To there is no drain spray, the phenomenon of many sprays.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and compare the activity of weeding of various medicaments.Additionally, also
The condition of production consumption of every mu of ground effective ingredient (consumption be) of crop is observed in 1～15d, to investigate medicament pair after medicine
Whether crop has poisoning.
Embodiments of the invention preparation Herbicidal Testing Trials effect see table 20d after 2(medicine) and table 3(medicine after 40d)
Table 2 field control effectiveness test result (20d after medicine)
Table 3 field control effectiveness test result (40d after medicine)
Consumption in table 2 and table 3 is effective ingredient consumption.
As can be seen from the above table, Herbicidal combinations of the present invention has expansion herbicidal spectrum, improves the effect of activity of weeding, and extends medicine
The lasting period of agent.
Table 4 medicament security survey result to crop
In each process community, the rice is doing well, has no any medicine speckle, illustrates that various medicament is the safest to Oryza sativa L..
Claims (7)
1. the Herbicidal combinations containing Mediben with pretilachlor, it is characterised in that this Herbicidal combinations is with Mediben and pretilachlor
For effective ingredient, wherein, Mediben is 12～59:1 with the mass ratio of pretilachlor.
Herbicidal combinations the most according to claim 1, it is characterised in that Mediben and both pretilachlor are at Herbicidal combinations
In weight/mass percentage composition be 1 ~ 80%.
Herbicidal combinations the most according to claim 2, it is characterised in that Mediben and both pretilachlor are at Herbicidal combinations
In weight/mass percentage composition be 10 ~ 65%.
Herbicidal combinations the most according to claim 1, it is characterised in that it with Mediben and pretilachlor for effective ingredient and
The auxiliary agent allowed on pesticide is configured to any one dosage form.
Herbicidal combinations the most according to claim 4, it is characterised in that described dosage form be cream, suspending agent, aqueous emulsion,
Microemulsion, water dispersion granule or wettable powder.
6. the application in preparation is used for the herbicide of rice terrace postemergence weed control of the Herbicidal combinations described in claim 1.
7. the Herbicidal combinations described in claim 1 is used for preventing and kill off grass family and the herbicide of broad leaved weed in rice terrace in preparation
In application.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010046417A1 (en) * | 2008-10-22 | 2010-04-29 | Basf Se | Use of growth inhibitor herbicide on cultivated plants |
| CN102487951A (en) * | 2011-12-01 | 2012-06-13 | 联保作物科技有限公司 | Wheatland weeding composition and preparation thereof |
-
2013
- 2013-11-04 CN CN201310537235.XA patent/CN104604852B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010046417A1 (en) * | 2008-10-22 | 2010-04-29 | Basf Se | Use of growth inhibitor herbicide on cultivated plants |
| CN102487951A (en) * | 2011-12-01 | 2012-06-13 | 联保作物科技有限公司 | Wheatland weeding composition and preparation thereof |
Non-Patent Citations (1)
| Title |
|---|
| 52%丙草胺乳油防除水稻插秧田杂草试验;宋福彬;《现代化农业》;20071231(第12期);第6-7页 * |
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