CN102461512B - Mixed herbicide composition containing bispyribac-sodium and pyriftalid - Google Patents
Mixed herbicide composition containing bispyribac-sodium and pyriftalid Download PDFInfo
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- CN102461512B CN102461512B CN201010552892.8A CN201010552892A CN102461512B CN 102461512 B CN102461512 B CN 102461512B CN 201010552892 A CN201010552892 A CN 201010552892A CN 102461512 B CN102461512 B CN 102461512B
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Abstract
The invention discloses a mixed herbicide composition containing bispyribac-sodium and pyriftalid. The herbicide composition adopts the bispyribac-sodium and the pyriftalid as main active components, the weight ratio of the bispyribac-sodium and the pyriftalid is 1 to 99:1 to 99. Different surfactants, thickening agents, solvents, solid fillers or the like can be added to the herbicide composition to become a variety of agents, such as emulsifiable concentrate, suspending agents, emulsion in water, dry suspension, water-dispersible granules, wettable powder and the like. The herbicide composition can prevent and get rid of gramineous weeds, broadleaf weeds and cyperaceous weeds in paddy fields, and compared with single agents, the herbicide composition delays the resistance of weeds under the premise that the pesticide effect is enhanced, has a broad weeding spectrum and long persistence period, is safe for rice and next-stubble crops, and therefore is an ideal paddy field herbicide.
Description
Technical field
The invention belongs to pesticide field, especially weed killer herbicide field, relates to the mixed herbicidal composite of two careless ether and pyriftalid.This Herbicidal combinations can be applied paddy field postemergence weed control.
Background technology
Two careless ether, has another name called Nong Meili, salicylic acid Sulfadiazine Compound, two (4, the 6-SDM base-2-oxygen base) Sodium Benzoates of chemical name: 2,6-.Belong to phenoxy carboxylic acid herbicides, mainly by the acid of root leaf absorption inhibition vinegar milk is synthetic, hindered aminoacid biosynthesis side chain is selective herbicide, rice direct-seeding Tanaka, uses, and herbicidal spectrum is wide.Its structural formula is as follows:
Pyriftalid, chemical name: 7-[(4,6-dimethyl-2 pyrimidine radicals) sulphur]-3-methyl isophthalic acid (3H)-isopropyl furanone, structural formula is:
This medicine belongs to miazines oxygen (sulphur) benzoates weed killer herbicide, is early stage broad-spectrum herbicide after rice seedlings, aims at and transplants and direct seading rice exploitation.Its mechanism of action is suppress acetolactate synthestase (ALS) synthetic.Be used for preventing and treating paddy field grassy weed and part broad leaved weed, at paddy field, pyriftalid is absorbed by paddy rice root tip, and seldom a part can be transmitted on blade, and the grass cutting blade that small part medicament can be sprouted absorbs.
At present, herbicide for paddy field is limit by crop safety, herbicide spectrum is also limited, uses separately a kind of weed killer herbicide single dose can not control completely effectively the generation of paddy field weed, moreover weed killer herbicide consumption is excessive or dispenser is inhomogeneous also easily causes the residual hazard to this season crop or succession crop.Therefore, the present invention selects the two careless ether of pluses and minuses complementation and pyriftalid to be made into combination agent use, the consumption that had so both reduced medicament, has obviously improved herbicidal effect, has also avoided this season to make deposits yields poisoning and the possibility to succession crop generation residual hazard.
Summary of the invention
The present invention is according to the present situation of current paddy field herbicide after seedling, and after paddy field seedling weeds a situation arises, provide a kind of by two careless ether and the composite binary mixed herbicidal composite of pyriftalid, this Herbicidal combinations can not only improve the preventive effect to weeds, and to when stubble and succession crop safety, reduced peasant's drug cost simultaneously.
The object of this invention is to provide a kind of mixed herbicidal composite containing two careless ether and pyriftalid, it is characterized in that this Herbicidal combinations is take two careless ether and pyriftalid as main active ingredient, the mass ratio of two careless ether and pyriftalid is 1～99: 1～99.The mass ratio of preferably two careless ether and pyriftalid is 1～50: 1～50, and further the mass ratio of preferably two careless ether and pyriftalid is 1～30: 1～30, and most preferably the mass ratio of two careless ether and pyriftalid is 1～10: 1～15.
In mixed herbicidal composite, the two quality percentage composition in Herbicidal combinations of two careless ether and pyriftalid is 1～85%, and preferred mass percentage composition is 10～80%.
In the binary built preparation of two careless ether of the present invention and pyriftalid, except two kinds of active ingredients, the auxiliary agent allowing on the agricultural chemicals such as different surfaces activating agent, thickener, solvent or solid packing can also be added, the multiple formulations such as missible oil, suspending agent, water dispersion granule, wetting powder can be processed into.
This Herbicidal combinations can, with respect to single dose having improved under the prerequisite of drug effect, delay Weed Resistance, and herbicidal spectrum is wide, and the lasting period is long, enough prevents and kill off paddy field annual gramineous weed, broad leaved weed and sedge weed, and to paddy rice and second stubble crop safety.Herbicidal combinations of the present invention can be used for preparing the weed killer herbicide of paddy field postemergence weed control, can be used in especially preparation and prevent and kill off the weed killer herbicide of various annual weed and perennial weed, especially can prepare the weed killer herbicide of preventing and kill off grassy weed, broad leaved weed and sedge 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 Reduction, greatly improves the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Two careless ether is broad spectrum weeding agent, and it has good preventive effect to annual gramineous weed, and pyriftalid is to be mainly to prevent and kill off grassy weed, the weed killer herbicide of sedge weed and part broad leaved weed.After both mix, can improve the preventive effect that has of the preventive effect, particularly annual gramineous weed of grassy weed and broad leaved weed and sedge weed and broad leaved weed and sedge weed, thereby extend the lasting period of medicament.
3, safe.Medicament of the present invention is improving under the prerequisite of drug effect, and its safety to paddy field and succession crop is also improved.
Embodiment
Herbicidal combinations of the present invention is according to the former medicine correlation properties of two careless ether and pyriftalid, with and mechanisms etc., can be processed into the multiple formulations such as missible oil, suspending agent, water dispersion granule, wetting powder.The content of two kinds of active ingredients in Herbicidal combinations of the present invention does not limit to the scope in following examples.
Embodiment 1
Two careless ether 5%, pyriftalid 5%, calcium dodecyl benzene sulfonate 5%, alkylphenol polyoxyethylene 3%, solvent naphtha supplies 100%, according to conventional formulation method, is mixed with the missible oil that active ingredient quality percentage composition is 10%.
Embodiment 2
Two careless ether 10%, pyriftalid 10%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 2%, water to 100%, is mixed with according to conventional formulation method the suspending agent that active ingredient quality percentage composition is 20%.
Embodiment 3
Two careless ether 20%, pyriftalid 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, polyvinyl alcohol 2%, kaolin to 100%, is mixed with according to conventional formulation method the water dispersion granule that active ingredient quality percentage composition is 30%.
Embodiment 4
Two careless ether 10%, pyriftalid 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, is mixed with according to conventional formulation method the wetting powder that active ingredient quality percentage composition is 20%.
Embodiment 5
Two careless ether 9%, pyriftalid 1%, calcium dodecyl benzene sulfonate 5%, alkylphenol polyoxyethylene 3%, solvent naphtha supplies 100%, according to conventional formulation method, is mixed with the missible oil that active ingredient quality percentage composition is 10%.
Embodiment 6
Two careless ether 5%, pyriftalid 75%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, is mixed with according to conventional formulation method the water dispersion granule that active ingredient quality percentage composition is 80%.
Embodiment 7
Two careless ether 1%, pyriftalid 9%, calcium dodecyl benzene sulfonate 5%, alkylphenol polyoxyethylene 3%, solvent naphtha supplies 100%, is mixed with 10% missible oil.
Embodiment 8
Two careless ether 40%, pyriftalid 20%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, is mixed with according to conventional formulation method the wetting powder that active ingredient quality percentage composition is 60%.
Embodiment 9
Biologicall test experiment
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure its co-toxicity coefficient to barnyard grass.
Test method: the seed of quantitative barnyard grass is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, cultivate in illumination box, broadcast rear 3d, do to carry out soil spraying on composition spray in crawler type and process.After processing, in greenhouse, continue to cultivate, routine observation is respectively processed the preventive effect to weeds, weighs each weeds fresh weight after treatment after 30d, by the method that the nineteen sixties such as Sun Yunpei propose, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 100, shows that two kinds of active principles have synergistic effect, and 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 of combinations of herbicides of the present invention.
Reagent agent:
4 kinds of re-compounded binary herbicides in embodiment 1～4.
Contrast medicament:
The two careless ether suspending agents (commercially available) of 100 grams per liters, 250 grams per liter pyriftalid SC (commercially available).
For studying thing: paddy rice
Rice seedlings grows fine, and robust plant, without other damage by disease and insect.
Prevent and kill off object:
Grassy weed, broad leaved weed and the sedge weeds such as barnyard grass, moleplant seed, difformed galingale herb, needle spikesedge herb, short arrowhead, mexicana.
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 weed killer herbicide is special.During spraying, note liquid evenly to spray application in experimental plot 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.In addition, also to after medicine, in 1～15d, observe the condition of production of crop, to investigate medicament, whether crop be had to poisoning.
Embodiments of the invention preparation weeding test effect see the following form (40d after medicine)
The security survey result of medicament to crop
More than process all safety of paddy rice.
Claims (7)
1. containing a mixed herbicidal composite for two careless ether and pyriftalid, it is characterized in that this Herbicidal combinations is take two careless ether and pyriftalid as active ingredient, the mass ratio of two careless ether and pyriftalid is 1:1～2:1.
2. mixed herbicidal composite according to claim 1, is characterized in that the two quality percentage composition in Herbicidal combinations of two careless ether and pyriftalid is 1～85%.
3. mixed herbicidal composite according to claim 2, is characterized in that the two quality percentage composition in Herbicidal combinations of two careless ether and pyriftalid is 10～80%.
4. according to the mixed herbicidal composite described in claim 1, it is characterized in that the auxiliary agent that it allows on active ingredient and agricultural chemicals take two careless ether and pyriftalid is mixed with any one formulation.
5. mixed herbicidal composite according to claim 4, is characterized in that described formulation is wetting powder, water dispersible granules, missible oil or suspending agent.
6. the application of mixed herbicidal composite claimed in claim 1 in the weed killer herbicide of preparing paddy field postemergence weed control.
7. mixed herbicidal composite claimed in claim 1 is prevented and kill off the application in the weed killer herbicide of annual gramineous weed in paddy field, broad leaved weed and sedge weed in preparation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010552892.8A CN102461512B (en) | 2010-11-19 | 2010-11-19 | Mixed herbicide composition containing bispyribac-sodium and pyriftalid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010552892.8A CN102461512B (en) | 2010-11-19 | 2010-11-19 | Mixed herbicide composition containing bispyribac-sodium and pyriftalid |
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| Publication Number | Publication Date |
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| CN102461512A CN102461512A (en) | 2012-05-23 |
| CN102461512B true CN102461512B (en) | 2014-04-16 |
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| CN102228026B (en) * | 2011-05-25 | 2014-11-12 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing bispyribac-sodium and pyrimidinyloxy (thio) benzoates |
| CN104855387A (en) * | 2015-04-26 | 2015-08-26 | 北京燕化永乐生物科技股份有限公司 | Weeding composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006066849A1 (en) * | 2004-12-21 | 2006-06-29 | Syngenta Participations Ag | Herbicidal composition |
| CN101084750A (en) * | 2007-07-12 | 2007-12-12 | 徐开云 | Synergistic herbicide |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006066849A1 (en) * | 2004-12-21 | 2006-06-29 | Syngenta Participations Ag | Herbicidal composition |
| CN101084750A (en) * | 2007-07-12 | 2007-12-12 | 徐开云 | Synergistic herbicide |
Non-Patent Citations (2)
| Title |
|---|
| 刘安昌 等.新型除草剂环酯草醚的合成研究.《世界农药》.2010,第32卷(第05期),正文第1段. |
| 新型除草剂环酯草醚的合成研究;刘安昌 等;《世界农药》;20101025;第32卷(第05期);正文第1段 * |
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