CN104285987A - Compound herbicide containing phenmedipham, clethodim and pendimethalin and application of compound herbicide - Google Patents
Compound herbicide containing phenmedipham, clethodim and pendimethalin and application of compound herbicide Download PDFInfo
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- CN104285987A CN104285987A CN201410484309.2A CN201410484309A CN104285987A CN 104285987 A CN104285987 A CN 104285987A CN 201410484309 A CN201410484309 A CN 201410484309A CN 104285987 A CN104285987 A CN 104285987A
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Abstract
The invention discloses a compound herbicide containing phenmedipham, clethodim and pendimethalin and application of the compound herbicide. The principle active ingredients of the compound herbicide are phenmedipham, clethodim and pendimethalin. The compound herbicide containing phenmedipham, clethodim and pendimethalin has a remarkable effect in application in sugarbeet field weeding after seedling, in particular in application in prevention and weeding of various gramineous weeds and broadleaf weeds in the sugarbeet field.
Description
Technical field
The invention belongs to weed killer herbicide field, relate to a kind of compound herbicide containing phenmedipham, clethodim and Pendimethalin and application thereof.
Background technology
Phenmedipham (Phenmedipham) is known herbicidal compounds, molecular formula C
16h
16n
2o
4, chemical name: 3-[(methoxy hydroxyl) is amino] phenyl-N-(3-aminomethyl phenyl-) carbamate.Phenmedipham is cauline leaf inorganic agent after selectivity seedling, is applicable to the crop such as beet, strawberry field and prevents and kill off multiple broadleaf weed.As Chenopodium, shepherd's purse, white dead nettle, Armstrong, volume stem knotweed, chickweed, corn radish etc., but the weeds drug resistances such as knotweed, black nightshade, common sow thistle, clearvers are strong, and the weeds sprouted grassy weed, sedge weed and end are invalid.
Clethodim (clethodim) is known herbicidal compounds, molecular formula: C
17h
26clNO
3s, chemical name: (±)-2-[(E)-3-chloroallyloxyamino imino group] propyl group-5-[2-(ethylmercapto group) propyl group]-3-hydroxy cyclohexylphenyl-2-ketenes.Clethodim is a kind of novel dry land herbicide after seedling, has excellent selectivity.Be applicable to the broad-leaved fields such as soybean, rape, cotton, peanut and prevent and kill off the grassy weeds such as barnyard grass, wild oat, lady's-grass, green foxtail, eleusine indica, amur foxtail, annual bluegrass, hard grass.After dispenser, can be absorbed rapidly by grassy weed cauline leaf and conduct to stem apex and meristematic tissue, suppress merismatic activity, destroy cell division, finally cause weeds dead.
Pendimethalin (Pendimethalin) is known herbicidal compounds, molecular formula C
13h
19n
3o
4, chemical name: N-(1-ethyl propyl)-2,6-dinitro-3,4-dimethylaniline; The spirit of dish grass; Execute field to mend; Pendimethalin; Pendimethalin; N-(1-ethyl propyl)-3,4-dimethyl-2,6-dinitroaniline.Pendimethalin is upland field soil process weed killer herbicide before selectivity bud, after bud.Weeds absorb medicament by the young shoot sprouted, and enter the medicament in plant corpus and tubulin binding, suppress the mitosis of plant cell, thus cause weeds dead.
Current Sugarbeet Fields weed killer herbicide limit by crop safety, and herbicide spectrum is also limited, is used alone the generation that a kind of weed killer herbicide can not control Sugarbeet Fields weeds completely effectively.Therefore, compound herbicide becomes research heat topic at present.And so far, have no the relevant report being mixed with compound herbicide about phenmedipham, clethodim and Pendimethalin.
Summary of the invention
The first object of the present invention is to provide a kind of compound herbicide containing phenmedipham, clethodim and Pendimethalin, utilizes the synergistic effect existed between three, provides multiple concrete scheme to obtain better application prospect.
The second object of the present invention is to provide the related application of this weed killer herbicide.
For realizing the first object, the present invention adopts following technical scheme:
Containing the compound herbicide of phenmedipham, clethodim and Pendimethalin, this weed killer herbicide with phenmedipham, clethodim and Pendimethalin for principle active component.
More specifically, inventor finds that the mass ratio when phenmedipham, clethodim and Pendimethalin is 1 ~ 40:1 ~ 20:1 ~ 20, and during preferably 1 ~ 5:1 ~ 3:2 ~ 5, composite effect is more outstanding.
In above-mentioned compound herbicide, phenmedipham, clethodim and the Pendimethalin three gross mass percentage composition in weed killer herbicide is 5 ~ 80%, and preferred gross mass percentage composition is 35 ~ 50%.
In the ternary built preparation of phenmedipham of the present invention, clethodim and Pendimethalin, except active ingredient phenmedipham, clethodim and Pendimethalin, the auxiliary agent that can also add pesticidal preparations permission is prepared into various common dosage forms, those skilled in the art will envision that, based on the remarkable synergistic effect between above-mentioned active component, prepared ternary built preparation is inevitable desirable effect in weeding.
Wherein, what the present invention preferably added in above-mentioned active component that the auxiliary agent such as emulsifier, stabilizing agent is mixed with dispersibles oil-suspending agent, and this formulation can make gained compound herbicide possess better application prospect.
Further, the oil-suspending agent that dispersibles of the present invention preferably has following formula: phenmedipham 8 ~ 25%, clethodim 5 ~ 15%, Pendimethalin 5 ~ 30%, wetting dispersing agent 5 ~ 10%, emulsifier 3 ~ 10%, stabilizing agent 2 ~ 5%, the agent 1 ~ 3% of outstanding stream, surplus complements to 100% by epoxidized soybean oil
Wherein, Ricinate is selected from tristyryl phenol APEO, fatty alcohol-polyoxyethylene ether or P0/PE block phenolic ether, preferred P0/PE block phenolic ether; Emulsifier is selected from alkylpolyoxyethylene phosphate, polyoxyethylene nonylphenol ether or alkylaryl APEO, preferred polyoxyethylene nonylphenol ether; Described stabilizing agent is selected from organic ammonium salt (described organic ammonium salt is selected from trimethyl quaternary ammonium salt, tributyl quaternary ammonium salt or dimethyl stearyl quaternary ammonium salt) or polyvinyl alcohol or sodium silicate; Described outstanding stream agent is organobentonite.
More preferably described compound herbicide has following formula: phenmedipham 8 ~ 16%, clethodim 8 ~ 12%, Pendimethalin 20 ~ 30%, P0/PE block phenolic ether 5 ~ 10%, polyoxyethylene nonylphenol ether 3 ~ 10%, organic ammonium salt 2 ~ 5%, organobentonite 1 ~ 3%, surplus complements to 100% by epoxidized soybean oil.
The above-mentioned oil-suspending agent that dispersibles can adopt various preparation method disclosed in prior art to prepare, the selection of concrete grammar and confirm as those skilled in the art and grasped, as said components is mixed gained mixture carry out sand milling, again through soybean dietary fiber obtain average grain diameter be about 4 μm dispersible oil-suspending agent.
As a kind of preferred forms of the present invention, preferably described compound herbicide agent prescription is as follows:
Phenmedipham 16%, clethodim 12%, Pendimethalin 20%, P0/PE block phenolic ether 5%, polyoxyethylene nonylphenol ether 3%, trimethyl quaternary ammonium salt 5%, organobentonite 3%, epoxy soybean oil subsidy to 100%.
The present invention obtains compound herbicide composition and has the following advantages:
1, activity of weeding is high, kills weeds by three kinds of different mechanism, makes Weed Resistance produce speed and reduces, and three kinds of active ingredient Synergistics, drastically increase the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.The herbicide spectrum of three kinds of weed killer herbicides is different, and three is combined herbicidal spectrum and the activity of these three kinds of medicaments with the medicament that special ratios mixture obtains, make the herbicidal spectrum of mix preparation wider, the lasting period is longer.
3, delay Weed Resistance, the present invention can significantly improve the preventive effect to various resistant weed, delays the generation of Weed Resistance, extends the service life of medicament.
In addition, the application of the further claimed described compound herbicide of the present invention in Sugarbeet Fields postemergence weed control uses, and particularly applies in various grass family and broad leaved weed preventing and kill off in Sugarbeet Fields.
Because the scientific formulation of compound herbicide is reasonable, in actual application, to grass family various in Sugarbeet Fields and broad leaved weed, there is beyond thought preventive effect, and to the growth of beet itself without any harm, under the prerequisite that improve drug effect, to beet and succession crop, all there is reliable safety.
Embodiment
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Each source chemicals involved in the present invention is commercially available known product, and except specified otherwise, " % " involved in the present invention is mass percent.
Embodiment 1
Oil-suspending agent formula is dispersibled as follows described in the present embodiment:
Phenmedipham 16%, clethodim 12%, Pendimethalin 20%, P0/PE block phenolic ether 5%, polyoxyethylene nonylphenol ether 3%, trimethyl quaternary ammonium salt 5%, organobentonite 3%, epoxidized soybean oil complements to 100%.
Preparation method: above-mentioned each component is mixed and forms thick dispersion liquid in broken 4 hours in sand mill medium sand abrasive dust, then make its average grain diameter be less than 5 μm through soybean dietary fiber can to obtain 48% required phenmedipham clethodim Pendimethalin and dispersible oil-suspending agent product.
Embodiment 2 ~ 5
The composition suspending agent of following different content can be prepared by the method that embodiment 1 is similar
Test example 1
1) toxicity determination test
Utilize preparation in embodiment 1-4 and contrast medicament, measure its co-toxicity coefficient to Sugarbeet Fields common weed lamb's-quarters.
Reagent agent:
Experimental group 1: the product (principle active component: phenmedipham 16%+ clethodim 12%+ Pendimethalin 20%) prepared by embodiment 1;
Experimental group 2: the product (principle active component: phenmedipham 10%+ clethodim 15%+ Pendimethalin 10%) prepared by embodiment 2;
Experimental group 3: the product (principle active component: phenmedipham 10%+ clethodim 10%+ Pendimethalin 30%) prepared by embodiment 3;
Experimental group 4: the product (principle active component: phenmedipham 8%+ clethodim 8%+ Pendimethalin 20%) prepared by embodiment 4;
Experimental group 5: the product (principle active component: phenmedipham 25%+ clethodim 5%+ Pendimethalin 5%) prepared by embodiment 5;
Control group 1: compared with embodiment 1, distinctive points is only that principle active component is: clethodim 19%+ Pendimethalin 29%;
Control group 2: compared with embodiment 1, main active and consumption identical, it is wetting powder that distinctive points is only that control group 2 is prepared into formulation according to a conventional method;
Control group 3: compared with embodiment 1, distinctive points is only that wetting dispersing agent is dodecane phenyl sulfoacid calcium;
Control group 4: commercially available ternary compound herbicide, principle active component is: Pendimethalin 17%+ Acetochlor 22%+ Oxyfluorfen 5%;
For planting experimentally son first 40 DEG C of water seed soaking vernalization, will sow after waiting seed to show money or valuables one carries unintentionally.By the uniform broadcasting of pretreated lamb's-quarters seed in soil surface, earthing 0.5cm, after planting move into greenhouse cellar culture, adopt infiltrating irrigation mode moisturizing bottom basin alms bowl, make soil completely moistening, be placed in temperature 30 DEG C, light/secretly cultivate than in the greenhouse of 14h/10h, after planting 10d carries out thinning and determines strain, makes weed density be 20 strains/basin, treat that lamb's-quarters grows to 2-2.5 leaf, carry out spraying process.
With ASP-1098 type automatic sprayer (pressure: 0.4Mpa, speed: 50cm/s), liquid is carried out spraying process by experimental scheme from low dosage to high dose order, often process 4 times and repeat.After medicine 2 minutes, treat examination material surface liquid natural air drying, move into greenhouse cellar culture, keep ground moistening in basin, routine observation respectively processed the preventive effect to weeds, weighs the weeds fresh weight after each process after 30d.By the method that the nineteen sixties such as Sun Yunpei propose, calculate its virulence regression equation and co-toxicity coefficient.Co-toxicity coefficient is greater than 100, shows that two kinds of active principles have synergistic effect, otherwise, then show that two kinds of active principles have antagonism.
Table 1 toxicity measurement result
The above results absolutely proves, the compound herbicide after phenmedipham, clethodim and Pendimethalin three are composite, compared with control group 1-4, and preventing apart from significant increase lamb's-quarters, wherein the most remarkable with the synergistic function of embodiment 1.
2) field control effectiveness test
Reagent agent:
Experimental group 1: the product (principle active component: phenmedipham 16%+ clethodim 12%+ Pendimethalin 20%) prepared by embodiment 1;
Experimental group 2: the product (principle active component: phenmedipham 10%+ clethodim 15%+ Pendimethalin 10%) prepared by embodiment 2;
Experimental group 3: the product (principle active component: phenmedipham 10%+ clethodim 10%+ Pendimethalin 30%) prepared by embodiment 3;
Experimental group 4: the product (principle active component: phenmedipham 8%+ clethodim 8%+ Pendimethalin 20%) prepared by embodiment 4;
Experimental group 5: the product (principle active component: phenmedipham 25%+ clethodim 5%+ Pendimethalin 5%) prepared by embodiment 5;
Control group 1: compared with embodiment 1, distinctive points is only that principle active component is: clethodim 19%+ Pendimethalin 29%;
Control group 2: compared with embodiment 1, main active and consumption identical, it is wetting powder that distinctive points is only that control group 2 is prepared into formulation according to a conventional method;
Control group 3: compared with embodiment 1, distinctive points is only that wetting dispersing agent is dodecane phenyl sulfoacid calcium;
Control group 4: commercially available ternary compound herbicide, principle active component is: Pendimethalin 17%+ Acetochlor 22%+ Oxyfluorfen 5%;
For studying thing: beet, 3 ~ 6 leaf phases, grow fine, robust plant, without other damage by disease and insect.
Prevent and kill off object: Sugarbeet Fields advantage weeds, as the grassy weed such as barnyard grass, green foxtail, the broad leaved weeds such as lamb's-quarters, chickweed, Amaranthus retroflexus.
Test method: according to the area of experimental plot, the good various medicament of precise, after being watered dilution, carries out even spraying with knapsack sprayer, 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 not drain spray, spray more.
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 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 2 (after medicine 20d) and table 3 (after medicine 40d).
Table 2 dispenser is pharmacodynamic results after 20 days
40 days pharmacodynamic results after table 3 dispenser
Consumption in table 2 and table 3 all refers to preparation consumption.
As can be seen from table 2 and table 3, compound herbicide of the present invention all has significant preventive effect to grassy weed and broad leaved weed, and synergy is obvious, and the lasting period extends, wherein with the best results of embodiment 1.
Table 4 medicament is to crop safety investigation result
As can be seen from Table 4, beet in five embodiment process communities of the present invention all grows fine, have no any medicine spot or seedling death phenomenon, then there is seedling death phenomenon to a certain extent in control group 1-4, illustrate that compound herbicide of the present invention is to peanut safety, can promote the use of (wherein with the best results of embodiment 1).
3) herbicidal effect comparative trial
Test method: in the beet 4-5 leaf phase, when various grassy weed and broad leaved weed generally occur, the plot selecting 3 pieces of close liquid manure good as experimental field, with experimental group and the even dispenser of contrast medicament, after 20 days, contrast weeds strain preventive effect.
Subjects:
Experimental group 1: the product (principle active component: phenmedipham 16%+ clethodim 12%+ Pendimethalin 20%) prepared by embodiment 1;
Experimental group 2: the product (principle active component: phenmedipham 8%+ clethodim 8%+ Pendimethalin 20%) prepared by embodiment 4;
Control group 1: compared with embodiment 1, distinctive points is only that principle active component is: clethodim 19%+ Pendimethalin 29%;
Control group 2: compared with embodiment 1, main active and consumption identical, it is wetting powder that distinctive points is only that control group 2 is prepared into formulation according to a conventional method;
Control group 3: compared with embodiment 1, distinctive points is only that wetting dispersing agent is dodecane phenyl sulfoacid calcium;
Control group 4: commercially available ternary compound herbicide, principle active component is: Pendimethalin 17%+ Acetochlor 22%+ Oxyfluorfen 5%;
Result of the test: in table 5.
Within after table 5 medicine 20 days, respectively process and prevent and kill off Sugarbeet Fields weeds effect
As can be seen from the above table, experimental group 1 of the present invention and experimental group 2 and contrast medicament are compared with the ternary built weed killer herbicide that market is sold, and herbicidal spectrum, control efficiency all show more excellent, are worthy to be popularized.
4) what the use of weed killer herbicide grew succession crop affects comparative trial
Inventor expands comparative trial with regard to the use of weed killer herbicide to the impact that succession crop grows further, subjects is with " herbicidal effect comparative trial ", concrete test method is: on the basis of test 3, after beet results, original place block plants wheat, selected wheat breed is all wheats No. 26, records the plot wheat growth situation under each chemicals treatment.Result of the test is in table 6.
Impact on succession crop wheat after the process of table 6 different agents
| Treatment agent | Mu spike number (ten thousand) | Plant height (cm) | Grain number per spike (grain) | Thousand kernel weight (g) | Per mu yield (kg) |
| Experimental group 1 | 40.3 | 81.2 | 34.2 | 46.1 | 514 |
| Experimental group 2 | 39.1 | 81.1 | 34.2 | 46.0 | 512 |
| Control group 1 | 35.8 | 72.3 | 30.2 | 39.5 | 476 |
| Control group 2 | 33.9 | 71.6 | 29.5 | 38.6 | 471 |
| Control group 3 | 34.6 | 72.4 | 29.6 | 38.1 | 466 |
| Control group 4 | 35.2 | 71.6 | 30.8 | 37.8 | 459 |
| Artificial weeding contrasts | 39.0 | 78.0 | 34.0 | 44.0 | 482 |
Result shows, the growth of weed killer herbicide to rear stubble wheat of experimental group 1 and experimental group 2 does not exist any harmful effect, and control group 1-4 all shows succession crop inhibitory action in various degree, wherein the most serious with the impact of control group 4.Trace it to its cause, may be because of person composite time, due to the different in kind between component, there occurs some special interaction after used in combination to each other and exacerbate the impact of weed killer herbicide on succession crop.Though visible Pendimethalin+Acetochlor+Oxyfluorfen composite between certain synergistic effect, but also significantly to have increased the weight of in complex weedicide each component to the impact of succession crop simultaneously, be unfavorable for practical application, cannot as the feasible program that really can utilize and promote.
Although above with general explanation, embodiment and test, the present invention is described in detail, and on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (10)
1., containing the compound herbicide of phenmedipham, clethodim and Pendimethalin, it is characterized in that, described weed killer herbicide with phenmedipham, clethodim and Pendimethalin for principle active component.
2. require described compound herbicide according to right 1, it is characterized in that, in described weed killer herbicide, the mass ratio of phenmedipham, clethodim and Pendimethalin is 1 ~ 40:1 ~ 20:1 ~ 20, preferably 1 ~ 5:1 ~ 3:2 ~ 5.
3. compound herbicide according to claim 1 and 2, is characterized in that, described phenmedipham, clethodim and the Pendimethalin gross mass percentage composition in weed killer herbicide is 5 ~ 80%.
4. compound herbicide according to claim 3, is characterized in that, described phenmedipham, clethodim and the Pendimethalin gross mass percentage composition in weed killer herbicide is 35 ~ 50%.
5. compound herbicide according to claim 1 and 2, is characterized in that, described compound herbicide is for dispersibling oil-suspending agent.
6. compound herbicide according to claim 5, it is characterized in that, the described oil-suspending agent that dispersibles has following formula: phenmedipham 8 ~ 25%, clethodim 5 ~ 15%, Pendimethalin 5 ~ 30%, wetting dispersing agent 5 ~ 10%, emulsifier 3 ~ 10%, stabilizing agent 2 ~ 5%, the agent 1 ~ 3% of outstanding stream, surplus complements to 100% by epoxidized soybean oil.
7. compound herbicide according to claim 6, is characterized in that, described Ricinate is selected from tristyryl phenol APEO, fatty alcohol-polyoxyethylene ether or P0/PE block phenolic ether, preferred P0/PE block phenolic ether; Emulsifier is selected from alkylpolyoxyethylene phosphate, polyoxyethylene nonylphenol ether or alkylaryl APEO, preferred polyoxyethylene nonylphenol ether; Described stabilizing agent is selected from organic ammonium salt or polyvinyl alcohol or sodium silicate; Described outstanding stream agent is organobentonite.
8. compound herbicide according to claim 6, it is characterized in that, the described oil-suspending agent that dispersibles has following formula: phenmedipham 8 ~ 16%, clethodim 8 ~ 12%, Pendimethalin 20 ~ 30%, P0/PE block phenolic ether 5 ~ 10%, polyoxyethylene nonylphenol ether 3 ~ 10%, organic ammonium salt 2 ~ 5%, organobentonite 1 ~ 3%, surplus complements to 100% by epoxidized soybean oil.
9. the application of the compound herbicide described in any one of claim 1-8 in Sugarbeet Fields postemergence weed control.
10. the compound herbicide described in any one of claim 1-8 is preventing and kill off the application in the various grass family of Sugarbeet Fields or broad leaved weed.
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| CN201410484309.2A CN104285987B (en) | 2014-09-19 | 2014-09-19 | Compound herbicide and application thereof containing phenmedipham, clethodim and Pendimethalin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108902142A (en) * | 2018-08-08 | 2018-11-30 | 许昌市建安区昌盛日化实业有限公司 | A kind of Herbicidal combinations and nursery hedgerow herbicides special |
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| CN103518718A (en) * | 2013-10-08 | 2014-01-22 | 王玉梅 | Composite herbicide containing pendimethalin, oxyfluorfen and acetochlor |
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2014
- 2014-09-19 CN CN201410484309.2A patent/CN104285987B/en not_active Expired - Fee Related
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| WO1996032013A1 (en) * | 1995-04-12 | 1996-10-17 | Novartis Ag | Synergistic herbicidal compositions of metolachlor |
| CN1200649A (en) * | 1995-09-20 | 1998-12-02 | 巴斯福股份公司 | Synergistic herbicidal mixtures contg. cyclohexenone oxime ether |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108902142A (en) * | 2018-08-08 | 2018-11-30 | 许昌市建安区昌盛日化实业有限公司 | A kind of Herbicidal combinations and nursery hedgerow herbicides special |
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