CN104604872A - Dicamba and metazachlor herbicidal composition and application thereof - Google Patents
Dicamba and metazachlor herbicidal composition and application thereof Download PDFInfo
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- CN104604872A CN104604872A CN201310539046.6A CN201310539046A CN104604872A CN 104604872 A CN104604872 A CN 104604872A CN 201310539046 A CN201310539046 A CN 201310539046A CN 104604872 A CN104604872 A CN 104604872A
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- metazachlor
- dicamba
- herbicidal combinations
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Abstract
The invention discloses a dicamba and metazachlor herbicidal composition and application thereof, the herbicidal composition comprises dicamba and metazachlor as main effective components, and the mass ratio of dicamba to metazachlor is 1-60:1-60. The herbicidal composition can be used for cornfield after-seedling weeding, is especially used to control gramineae and broadleaf weeds in cornfields, and has a significant effect. The herbicidal composition has the advantages of delaying weed resistance, wide weeding spectrum, long lasting period, and safety of the corn and afterreap crops on the premise of improvement of the efficacy of the herbicide compared with a single agent.
Description
Technical field
The invention belongs to technical field of pesticide, especially weed killer herbicide field, be specifically related to the binary built Herbicidal combinations of a kind of dicamba and metazachlor, this Herbicidal combinations can be applicable to corn field postemergence weed control.
Background technology
Dicamba, has another name called wheat straw prestige; Dicamba.The chloro-O-Anisic Acid of chemical name: 3,6-bis-, structural formula is:
Dicamba belongs to hormone herbicide.There is Uptake and translocation effect, have remarkable preventive effect to annual and perennial broadleaf weed.Dicamba is used for spraying after seedling, and medicament very soon by the leaf of weeds, stem, root absorption, can be conducted by phloem and xylem up and down, focuses mostly at meristematic tissue and the vigorous position of metabolic activity, hinders the normal activity of plant hormone, thus make it dead.Namely there will be lopsided curling symptom with rear general 24h broad leaved weed, 15 ~ 20d is dead.
Metazachlor, has another name called metazachlor.The chloro-N-of chemical name: 2-(2,6-3,5-dimethylphenyl)-N-(1H-pyrazol-1-yl methyl) acetamide; The chloro-N-of 2-(pyrazol-1-yl methyl)-acetyl-2', 6'-dimethylaniline, belongs to chloro-acetyl amine weed killer herbicide, structural formula:
Metazachlor is the growth of T suppression cell by the obstruction synthesis of protein mainly, namely by weeds young shoot and root absorption, suppresses the synthesis of body internal protein, stops further growth.
Current corn field herbicide limit by crop safety, herbicide spectrum is also limited, be used alone the generation that a kind of weed killer herbicide single dose can not control corn field weed completely effectively, moreover some weed killer herbicide is due to water-soluble large 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 selects herbicide to compose different, be made into mixture after the dicamba of pluses and minuses complementation and metazachlor two kinds of suitable decrements of weed killer herbicide to use, so both expand herbicide spectrum, significantly improve herbicidal effect, it also avoid and poisoning and the possibility to succession crop generation residual hazard are produced to this season crop.
Summary of the invention
The object of this invention is to provide a kind of Herbicidal combinations containing dicamba and metazachlor.
Another object of the present invention is to provide the application of this Herbicidal combinations in cornfield weeding.
A kind of Herbicidal combinations containing dicamba and metazachlor, it is characterized in that this Herbicidal combinations with dicamba and metazachlor for principle active component, the mass ratio of dicamba and metazachlor is 1 ~ 60:1 ~ 60, be preferably 1 ~ 60:1 ~ 30, more preferably 29 ~ 60:1 ~ 5, most preferably are 12 ~ 59:1.
In Herbicidal combinations, both dicamba and the metazachlor mass percentage in Herbicidal combinations is 1 ~ 80%, and preferred mass percentage composition is 10 ~ 65%, and further preferred mass percentage composition is 30 ~ 65%.
In the binary built composition of dicamba of the present invention and metazachlor, except the active ingredient such as dicamba and metazachlor, the auxiliary agents such as conventional surfactants, thickener, solvent or the solid packing that pesticidal preparations allows can also be added and be mixed with any one formulation that agricultural chemicals allows.Preferably be processed into missible oil, suspending agent, aqueous emulsion, microemulsion, water dispersion granule, wetting powder etc.
Herbicidal combinations of the present invention can be applied in corn field postemergence weed control, particularly has remarkable result preventing and kill off in corn field application in grass family and broad leaved weed.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding is high.Herbicidal combinations of the present invention can kill weeds by two kinds of different mechanism, makes Weed Resistance produce speed and reduces, greatly improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Metazachlor is broad spectrum weeding agent, and it has good preventive effect to annual gramineous weed, and dicamba is the weed killer herbicide preventing and kill off broad leaved weed.After both mixing, the control to multiple grassy weed and broad leaved weed can be improved.
3, Weed Resistance is delayed.Herbicidal combinations of the present invention, by binary built, reduces weeds to the resistance of medicament, and improves the preventive effect of antagonism weeds, thus extend the service life of medicament.
4, safety is high.Because its using dosage is under control, make medicament under the prerequisite that improve drug effect, it have also been obtained raising to the safety of corn and succession crop.
Herbicidal combinations of the present invention, is applied to corn field postemergence weed control, and it can prevent and kill off various grass family and broad leaved weed in corn field, under the prerequisite that improve drug effect, all has safety to corn and succession crop.
Therefore, Herbicidal combinations of the present invention can be applied in the weed killer herbicide for the preparation of corn field postemergence weed control, particularly applies in for the preparation of the weed killer herbicide preventing and kill off grass family and broad leaved weed in corn field.
Embodiment
Embodiment 1
Dicamba 34%, metazachlor 1%, alkylphenol polyoxyethylene 4%, phenethyl phenol polyethenoxy ether 15%, dimethylbenzene to 100%, formulation method is conveniently mixed with the missible oil that mass percentage is 35%.
Embodiment 2
Dicamba 29%, metazachlor 1%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus is water, and formulation method is conveniently mixed with the suspending agent that mass percentage is 30%.
Embodiment 3
Dicamba 59%, metazachlor 1%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, formulation method is conveniently mixed with the water dispersion granule that mass percentage is 60%.
Embodiment 4
Dicamba 60%, metazachlor 5%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, kaolin to 100%, formulation method is conveniently mixed with the wetting powder that mass percentage is 65%.
Embodiment 5
Dicamba 3%, metazachlor 12%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, solvent naphtha 20%, water to 100%, formulation method is conveniently mixed with the aqueous emulsion that mass percentage is 15%.
Embodiment 6
Dicamba 1%, metazachlor 9%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, water to 100%, formulation method is conveniently mixed with the microemulsion that mass percentage is 10%.
Embodiment 7
Dicamba 10%, metazachlor 50%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, kaolin to 100%, formulation method is conveniently mixed with the wetting powder that mass percentage is 60%.
Embodiment 8
Dicamba 20%, metazachlor 31%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus is water, and formulation method is conveniently mixed with the suspending agent that mass percentage is 51%.
Embodiment 9
Dicamba 19%, metazachlor 60%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, formulation method is conveniently mixed with the water dispersion granule that mass percentage is 79%.
Embodiment 10
Dicamba 5%, metazachlor 5%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, kaolin to 100%, formulation method is conveniently mixed with the wetting powder that mass percentage is 10%.
Embodiment 11
1), toxicity determination test
Utilize the preparation in embodiment 1 ~ 4, measure its co-toxicity coefficient to corn field common weed chickweed.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative chickweed, sows 10 ~ 15 seeds in every glass, cultivates in illumination box, when chickweed 3 ~ 6 leaf phase, does composition spray to carry out spraying process in crawler type.Continue 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, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 100, and show that two kinds of active principles have synergistic effect, co-toxicity coefficient is less than 100, shows that two kinds of active principles 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 principles are composite is all greater than 100, illustrates that the present invention has obvious synergistic effect.
2), field control effectiveness test.
Reagent agent:
4 kinds of re-compounded binary herbicides in embodiment 1 ~ 4.
Contrast medicament:
48% dicamba aqueous solution (commercially available), 50% metazachlor suspending agent (commercially available).
For studying thing: corn
Maize seedling grows fine, robust plant, without other damage by disease and insect.
Prevent and kill off object:
The weeds such as barnyard grass, green foxtail, lady's-grass, lamb's-quarters, amaranth, smartweed.
Test method:
According to the area of experimental plot, the good various medicament of precise, and after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head that sprinkler selection weed killer herbicide is special.During spraying, liquid be noted evenly to spray application in experimental plot, accomplish the phenomenon not having drain spray, many sprays.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicament.In addition, after medicine, the condition of production (consumption is the consumption of every mu of ground active ingredient) of crop also in 1 ~ 15d, to be observed, whether have poisoning to investigate medicament to crop.
Embodiments of the invention preparation Herbicidal Testing Trials effect sees the following form 20d after 2(medicine) and table 3(medicine after 40d)
Table 2 field control effectiveness test result (after medicine 20d)
Table 3 field control effectiveness test result (after medicine 40d)
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 the lasting period of medicament.
Table 4 medicament is to the security survey result of crop
Corn in each process community grows fine, and has no any medicine spot, illustrates that various medicament is all safe to corn.
Claims (9)
1., containing a Herbicidal combinations for dicamba and metazachlor, it is characterized in that this Herbicidal combinations with dicamba and metazachlor for active ingredient, wherein, the mass ratio of dicamba and metazachlor is 1 ~ 60:1 ~ 60.
2. the Herbicidal combinations containing dicamba and metazachlor according to claim 1, is characterized in that the mass ratio of dicamba and metazachlor in this Herbicidal combinations is 1 ~ 60:1 ~ 30.
3. the Herbicidal combinations containing dicamba and metazachlor according to claim 2, is characterized in that the mass ratio of dicamba and metazachlor in this Herbicidal combinations is 29 ~ 60:1 ~ 5, preferably 12 ~ 59:1.
4., according to the Herbicidal combinations in claims 1 to 3 described in any one, it is characterized in that both dicamba and the metazachlor mass percentage in Herbicidal combinations is 1 ~ 80%.
5. Herbicidal combinations according to claim 4, is characterized in that both dicamba and the metazachlor mass percentage in Herbicidal combinations is 10 ~ 65%, preferably 30 ~ 65%.
6. Herbicidal combinations according to claim 1, is characterized in that it with dicamba and metazachlor for the auxiliary agent that active ingredient and agricultural chemicals allow is mixed with any one formulation.
7. Herbicidal combinations according to claim 6, is characterized in that described formulation is missible oil, suspending agent, aqueous emulsion, microemulsion, water dispersion granule or wetting powder.
8. the application of Herbicidal combinations according to claim 1 in the weed killer herbicide for the preparation of corn field postemergence weed control.
9. Herbicidal combinations according to claim 1 is for the preparation of the application of preventing and kill off in the weed killer herbicide of grass family and broad leaved weed in corn field.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310539046.6A CN104604872B (en) | 2013-11-04 | 2013-11-04 | A kind of Herbicidal combinations containing Mediben and metazachlor and application thereof |
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| CN201310539046.6A CN104604872B (en) | 2013-11-04 | 2013-11-04 | A kind of Herbicidal combinations containing Mediben and metazachlor and application thereof |
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| CN104604872A true CN104604872A (en) | 2015-05-13 |
| CN104604872B CN104604872B (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771798A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and propisochlor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999065314A1 (en) * | 1998-06-16 | 1999-12-23 | Basf Aktiengesellschaft | Herbicidal mixtures having a synergistic effect |
| CN1278140A (en) * | 1997-11-03 | 2000-12-27 | 巴斯福公司 | Chloroacetamide mixtures with suppressed precipitation |
| US20040171488A1 (en) * | 1999-12-03 | 2004-09-02 | Dieter Feucht | N-aryl-uracils based Herbicides |
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2013
- 2013-11-04 CN CN201310539046.6A patent/CN104604872B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1278140A (en) * | 1997-11-03 | 2000-12-27 | 巴斯福公司 | Chloroacetamide mixtures with suppressed precipitation |
| WO1999065314A1 (en) * | 1998-06-16 | 1999-12-23 | Basf Aktiengesellschaft | Herbicidal mixtures having a synergistic effect |
| US20040171488A1 (en) * | 1999-12-03 | 2004-09-02 | Dieter Feucht | N-aryl-uracils based Herbicides |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771798A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and propisochlor |
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| CN104604872B (en) | 2016-08-17 |
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