CN104604900B - A kind of Herbicidal combinations and application thereof containing Mediben and pyridate - Google Patents
A kind of Herbicidal combinations and application thereof containing Mediben and pyridate Download PDFInfo
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- CN104604900B CN104604900B CN201310539306.XA CN201310539306A CN104604900B CN 104604900 B CN104604900 B CN 104604900B CN 201310539306 A CN201310539306 A CN 201310539306A CN 104604900 B CN104604900 B CN 104604900B
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Abstract
The invention discloses a kind of Herbicidal combinations and application thereof containing Mediben and pyridate, this Herbicidal combinations is taking Mediben and pyridate as active ingredient, and the mass ratio of Mediben and pyridate is 1～60:1～60. Herbicidal combinations of the present invention can be used for rice terrace postemergence weed control, has remarkable result especially for preventing and kill off broad leaved weed in rice terrace with some grassy weed. Herbicidal combinations of the present invention having improved under the prerequisite of drug effect, delays Weed Resistance with respect to single dose, and herbicidal spectrum is wide, and the lasting period is long, and paddy rice and succession crop are all had to security.
Description
Technical field
The invention belongs to technical field of pesticide, herbicide field especially, is specifically related to a kind of Mediben and pyridateBinary built 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. The chloro-O-Anisic Acid of chemical name: 3,6-bis-, structural formula is:
Mediben belongs to hormone herbicide. There is interior suction conduction, annual and perennial broadleaf weed are had significantlyPreventive effect. Mediben is sprayed for after seedling, and medicament can be very soon by the leaf of weeds, stem, root absorption, by bast and xylemConduction, focuses mostly at separate living tissue and the vigorous position of metabolic activity up and down, hinders the normal activity of plant hormone, thereby makesIts death. There will be lopsided curling symptom, 15～20d death with rear general 24h broad leaved weed.
Pyridate, have another name called agriculture must eliminate grass, reach grass only, generation grass fast, broad-leaved is withered, connect and reach the chloro-3-benzene of Crane, chemical name: 6-Radical pyridazine-4-base-S-octylsulfo carbonic ester, belongs to dithiocarbamate herbicide, structural formula:
Pyridate is herbicide after seedling optionally, has blade face contact toxicity, and cauline leaf is absorbed by blade rapidly after processing,Hinder photosynthetic Hill reaction, make grass cutting blade flavescence and stop growing, finally withered lethal. Be applicable to wheat, paddy rice,The cereal crops such as corn are prevented and kill off broad leaved weed, especially clearvers, Amaranthus retroflexus and some undergraduate course weeds have been had preventive effect good.Dispenser should not be too early or is excessively late, and dispenser should rest in weeds period and occur in early days, and when broad leaved weed all sprouts, dispenser is ideal.
Herbicide for paddy field is limit by crop safety at present, and herbicide spectrum is also limited, uses separately a kind of herbicide single doseCan not control completely effectively the generation of paddy field weed, moreover some herbicide due to water-soluble large or field lasting period tooLong, consumption is excessive or dispenser is inhomogeneous all easily causes the residual hazard to this season crop or succession crop. Therefore, the present invention's choosingSelect and can herbicide compose difference, after two kinds of suitable decrements of herbicide of the Mediben of pluses and minuses complementation and pyridate, be made into mixture and use, thisSample had both expanded herbicide spectrum, had obviously improved herbicidal effect, had also avoided this season do deposits yields poisoning and succession crop is producedThe possibility of raw residual hazard.
Summary of the invention
The object of this invention is to provide a kind of Herbicidal combinations containing Mediben and pyridate.
Another object of the present invention is to provide the application of this Herbicidal combinations in agent for removing grass in paddy field.
Containing a Herbicidal combinations for Mediben and pyridate, it is characterized in that this Herbicidal combinations is with Mediben and the grass of rattling awaySpecially for active ingredient, the mass ratio of Mediben and pyridate is 1～60:1～60, preferably 1～60:1～30, further preferably 29～60:1～5, most preferably 12～59:1.
In Herbicidal combinations, the two quality percentage composition in Herbicidal combinations of Mediben and pyridate is 1～80%, preferred mass percentage composition is 10～65%, and further preferred mass percentage composition is 30～65%.
In the binary built composition of Mediben of the present invention and pyridate, except Mediben and pyridate active ingredientCan also add the auxiliary agents such as the conventional surfactants, thickener, solvent or the solid packing that allow on pesticidal preparations outward, is mixed withAny one formulation allowing on agricultural chemicals. Preferably be processed into missible oil, suspending agent, aqueous emulsion, microemulsion, water dispersion granule, canWP etc.
Herbicidal combinations of the present invention can be applied in rice terrace postemergence weed control, particularly preventing and kill off standing grain in rice terraceIn undergraduate course and broad leaved weed, application has remarkable result.
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 weedsResistance has produced Speed Reduction, greatly improves the removing activity of herbicide.
2, herbicidal spectrum is wide, and the lasting period is long. Pyridate is broad spectrum weeding agent, for preventing and kill off annual broadleaf weed and certainA little grassy weeds, Mediben is the herbicide of preventing and kill off broad leaved weed. Both can improve multiple grassy weed after mixingControl with broad leaved weed.
3, delay Weed Resistance. Herbicidal combinations of the present invention, by binary built, reduces the resistance of weeds to medicament, and carriesThe preventive effect of high antagonism weeds, thereby the service life of prolongation medicament.
4, safe. Because its using dosage is under control, medicament is being improved under the prerequisite of drug effect, it is to waterThe security of rice and succession crop is also improved.
Herbicidal combinations of the present invention, is applied to rice terrace postemergence weed control, and it can prevent and kill off various grass family in rice terraceAnd broad leaved weed, improving under the prerequisite of drug effect, paddy rice and succession crop are all had to security.
Therefore, Herbicidal combinations of the present invention can be applied in the herbicide for the preparation of rice terrace postemergence weed control,Particularly in the herbicide for the preparation of grass family in preventing and kill off rice terrace and broad leaved weed, apply.
Detailed description of the invention
Embodiment 1
Mediben 34%, pyridate 1%, APES 4%, phenethyl phenol polyethenoxy ether 15%, dimethylbenzene is extremely100%, being mixed with quality percentage composition according to conventional formulation method is 35% missible oil.
Embodiment 2
Mediben 29%, pyridate 1%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, magnesium silicateAluminium 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus is water, is mixed with quality hundred according to conventional formulation methodDivide the suspending agent that content is 30%.
Embodiment 3
Mediben 59%, pyridate 1%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolinTo 100%, being mixed with quality percentage composition according to conventional formulation method is 60% water dispersion granule.
Embodiment 4
Mediben 60%, pyridate 5%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, kaolin to 100%,Being mixed with quality percentage composition according to conventional formulation method is 65% wettable powder.
Embodiment 5
Mediben 3%, pyridate 12%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, magnesium silicateAluminium 0.5%, ethylene glycol 7%, tributyl phosphate 2%, solvent naphtha 20%, water to 100%, is mixed with quality according to conventional formulation methodPercentage composition is 15% aqueous emulsion.
Embodiment 6
Mediben 1%, pyridate 9%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, magnesium silicateAluminium 0.5%, ethylene glycol 7%, tributyl phosphate 2%, water to 100%, is mixed with quality percentage composition according to conventional formulation method and is10% microemulsion.
Embodiment 7
Mediben 10%, pyridate 50%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, kaolin is extremely100%, being mixed with quality percentage composition according to conventional formulation method is 60% wettable powder.
Embodiment 8
Mediben 20%, pyridate 31%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, silicic acidMagnalium 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus is water, is mixed with quality according to conventional formulation methodPercentage composition is 51% suspending agent.
Embodiment 9
Mediben 19%, pyridate 60%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, Gao LingSoil is to 100%, and being mixed with quality percentage composition according to conventional formulation method is 79% water dispersion granule.
Embodiment 10
Mediben 5%, pyridate 5%, NNO(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, kaolin to 100%,Being mixed with quality percentage composition according to conventional formulation method is 10% wettable powder.
Embodiment 11
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure its co-toxicity coefficient to corn field common weed dayflower.
Test method: the seed of quantitative dayflower is seeded in respectively in the Disposable paper cup of 9cm, sows 10 in every glass～15 seeds are cultivated in illumination box, in the time of 3～6 leaf phase of dayflower, do to spray on composition spray in crawler typeProcess. After processing, in greenhouse, continue to cultivate, routine observation is respectively processed the preventive effect to weeds, weighs each after treatment after 30dWeeds fresh weight, calculates its toxicity regression curve and co-toxicity coefficient. Co-toxicity coefficient is greater than 100, shows that two kinds of active principles have increasingEffect 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 brightAobvious 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), 45% pyridate can wet-milling (commercially available).
For studying thing: paddy rice
Rice seedlings grows fine, and robust plant, without other disease and pests.
Prevent and kill off object:
The weeds such as barnyard grass, green bristlegrass, lady's-grass, lamb's-quarters, amaranth, smartweed.
Test method:
According to the area of experimental plot, accurately weigh good various medicaments, and be watered after dilution, utilize knapsack sprayer,Carry out even spraying, the Fan spray head that sprinkler selection herbicide is special. When spraying, note that liquid is evenly sprayed application to test littleQu Zhong, the phenomenon of accomplishing there is no drain spray, spraying more.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicaments. ThisAlso to after medicine, in 1～15d, observe the condition of production (consumption is the consumption of every mu of ground active ingredient) of crop, to investigate outward,Whether medicament has poisoning to crop.
The embodiments of the invention preparation weeding test effect 20d after 2(medicine that sees the following form) 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 prolongsGrow the lasting period of medicament.
The security survey result of table 4 medicament to crop
| Treatment agent | Rice seedlings survival rate (%) |
| 3d after medicine | 7d after medicine | 10d after medicine | 15d after medicine | |
| Embodiment 1 | 100 | 100 | 100 | 100 |
| Embodiment 2 | 100 | 100 | 100 | 100 |
| Embodiment 3 | 100 | 100 | 100 | 100 |
| Embodiment 4 | 100 | 100 | 100 | 100 |
| 45% pyridate can wet-milling | 100 | 100 | 100 | 100 |
| 48% dicamba aqueous solution | 100 | 100 | 100 | 100 5 --> |
| Clear water contrast | 100 | 100 | 100 | 100 |
In each processing community, the rice is doing well, has no any medicine spot, illustrates that various medicaments are to all safety of paddy rice.
Claims (10)
1. containing a Herbicidal combinations for Mediben and pyridate, it is characterized in that this Herbicidal combinations is with Mediben and pyridateFor active ingredient, wherein, the mass ratio of Mediben and pyridate is 1～60:1～60.
2. the Herbicidal combinations containing Mediben and pyridate according to claim 1, is characterized in that this Herbicidal combinationsThe mass ratio of middle Mediben and pyridate is 1～60:1～30.
3. the Herbicidal combinations containing Mediben and pyridate according to claim 2, is characterized in that this Herbicidal combinationsThe mass ratio of middle Mediben and pyridate is 29～60:1～5.
4. the Herbicidal combinations containing Mediben and pyridate according to claim 3, is characterized in that this Herbicidal combinationsThe mass ratio of middle Mediben and pyridate is 12～59:1.
5. according to the Herbicidal combinations described in any one in claim 1～4, it is characterized in that Mediben and pyridate the twoQuality percentage composition in Herbicidal combinations is 1 ~ 80%.
6. Herbicidal combinations according to claim 5, it is characterized in that Mediben and pyridate the two at Herbicidal combinationsIn quality percentage composition be 10 ~ 65%.
7. Herbicidal combinations according to claim 1, it is characterized in that it taking Mediben and pyridate as active ingredient andThe auxiliary agent allowing on agricultural chemicals is mixed with any one formulation.
8. Herbicidal combinations according to claim 7, it is characterized in that described formulation be missible oil, suspending agent, aqueous emulsion,Microemulsion, water dispersion granule or wettable powder.
9. the application of Herbicidal combinations claimed in claim 1 in the herbicide for the preparation of rice terrace postemergence weed control.
10. Herbicidal combinations claimed in claim 1 is assorted for the preparation of broad leaved weed in preventing and kill off rice terrace and some grass familyApplication in the herbicide of grass.
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| CN106561668A (en) * | 2016-11-09 | 2017-04-19 | 徐州得铸生物科技有限公司 | Composite weed killer with pyridaben |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027953A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Synergistic herbicidal composition containing cyhalofop-butyl and pyridate and application thereof |
| CN102838483A (en) * | 2012-09-20 | 2012-12-26 | 山东潍坊润丰化工有限公司 | Synthesis method of dicamba |
| CN102907451A (en) * | 2012-11-19 | 2013-02-06 | 江苏扬农化工股份有限公司 | Compound herbicide composition containing dicamba and application thereof |
| CN103039490A (en) * | 2012-12-26 | 2013-04-17 | 山东滨农科技有限公司 | Weeding composite containing fentrazamide and pyridate |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027953A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Synergistic herbicidal composition containing cyhalofop-butyl and pyridate and application thereof |
| CN102838483A (en) * | 2012-09-20 | 2012-12-26 | 山东潍坊润丰化工有限公司 | Synthesis method of dicamba |
| CN102907451A (en) * | 2012-11-19 | 2013-02-06 | 江苏扬农化工股份有限公司 | Compound herbicide composition containing dicamba and application thereof |
| CN103039490A (en) * | 2012-12-26 | 2013-04-17 | 山东滨农科技有限公司 | Weeding composite containing fentrazamide and pyridate |
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Effective date of registration: 20180521 Address after: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Co-patentee after: Nanjing Redsun Co., Ltd. Patentee after: Nanjing Huazhou Pharmaceutical Co., Ltd. Address before: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Patentee before: Nanjing Huazhou Pharmaceutical Co., Ltd. |