CN102461512A - Mixed herbicide composition containing bispyribac-sodium and pyriftalid - Google Patents
Mixed herbicide composition containing bispyribac-sodium and pyriftalid Download PDFInfo
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- CN102461512A CN102461512A CN2010105528928A CN201010552892A CN102461512A CN 102461512 A CN102461512 A CN 102461512A CN 2010105528928 A CN2010105528928 A CN 2010105528928A CN 201010552892 A CN201010552892 A CN 201010552892A CN 102461512 A CN102461512 A CN 102461512A
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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, weed killer herbicide field especially relates to the mixed herbicidal composite of two careless ethers and pyriftalid.This Herbicidal combinations can be used the paddy field postemergence weed control.
Background technology
Two careless ethers have another name called Nong Meili, the salicylic acid Sulfadiazine Compound, and chemical name: 2, two (4, the 6-SDM base-2-oxygen base) Sodium Benzoates of 6-.Belong to phenoxy carboxylic acid herbicides, mainly hindered aminoacid biosynthesis side chain is selective herbicide through the acid of root leaf absorption inhibition vinegar milk is synthetic, uses rice direct-seeding Tanaka, and herbicidal spectrum is wide.Its structural formula is following:
Pyriftalid, chemical name: 7-[(4,6-dimethyl-2 pyrimidine radicals) sulphur]-3-methyl isophthalic acid (3H)-different third and furanone, structural formula is:
This medicine belongs to miazines oxygen (sulphur) benzoates weed killer herbicide, is early stage broad-spectrum herbicide behind the paddy rice seedling, aims at and transplants and the direct seading rice exploitation.Its mechanism of action is suppress acetolactate synthestase (ALS) synthetic.Be used to prevent and treat 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 the blade, and the grass cutting blade that few part medicament can be sprouted absorbs.
At present; Herbicide for paddy field is limit by crop safety; It is also limited to kill the grass spectrum, use the agent of a kind of weed killer herbicide list can not control the generation of paddy field weed completely effectively separately, moreover the weed killer herbicide consumption is excessive or the inhomogeneous residual hazard that also causes easily this season crop or succession crop of dispenser.Therefore; The present invention selects complementary two careless ether of pluses and minuses and pyriftalid to be made into the combination agent use; So both reduced the consumption of medicament, obviously improved herbicidal effect, and also avoided this season is done the deposits yields poisoning and succession crop produced the possibility of residual hazard.
Summary of the invention
The present invention is according to the present situation of present paddy field herbicide after seedling; And behind the paddy field seedling weeds a situation arises; Provide a kind of by two careless ethers 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, has reduced peasant's drug cost simultaneously.
The purpose of this invention is to provide a kind of mixed herbicidal composite that contains two careless ethers and pyriftalid, it is characterized in that this Herbicidal combinations is main active ingredient with two careless ethers and pyriftalid, the mass ratio of two careless ethers and pyriftalid is 1～99: 1～99.The mass ratio of preferred two careless ether and pyriftalid is 1～50: 1～50, and the mass ratio of further preferred two careless ethers and pyriftalid is 1～30: 1～30, and the mass ratio of most preferably two careless ethers and pyriftalid is 1～10: 1～15.
In mixed herbicidal composite, the two quality percentage composition in Herbicidal combinations of two careless ethers and pyriftalid is 1～85%, and the 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 that allows on the agricultural chemicals such as different surfaces activating agent, thickener, solvent or solid packing can also be added, multiple formulations such as missible oil, suspending agent, water dispersion granule, wetting powder can be processed into.
This Herbicidal combinations can delay the weeds resistance with respect to single agent under the prerequisite that has improved drug effect, 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 preparation especially 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 through two kinds of different mechanism, makes weeds resistance generation speed reduce, and greatly improves the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Two careless ethers are broad spectrum weeding agent, and it has good preventive effect to annual gramineous weed, and pyriftalid is mainly to be to prevent and kill off grassy weed, the weed killer herbicide of sedge weed and part broad leaved weed.After both mix, can improve grassy weed and broad leaved weed and sedge weed preventive effect, particularly annual gramineous weed and broad leaved weed and sedge weed preventive effect arranged, thereby prolonged the lasting period of medicament.
3, safe.Medicament of the present invention is under the prerequisite that has improved drug effect, and its safety to paddy field and succession crop also is improved.
Embodiment
Herbicidal combinations of the present invention is according to the former medicine correlation properties of two careless ethers and pyriftalid, with and weeder reason etc., can be processed into multiple formulations such as missible oil, suspending agent, water dispersion granule, wetting powder.Two kinds of content of effective in the Herbicidal combinations of the present invention are not limited to the scope in following examples.
Embodiment 1
Two careless ethers 5%, pyriftalid 5%, calcium dodecyl benzene sulfonate 5%, APES 3%, solvent naphtha supplies 100%, and being mixed with active ingredient quality percentage composition according to the conventional formulation method is 10% missible oil.
Embodiment 2
Two careless ethers 10%; Pyriftalid 10%, methyl naphthalene sulfonate formaldehyde condensate 6%, NPE 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 2%; Water to 100%, being mixed with active ingredient quality percentage composition according to the conventional formulation method is 20% suspending agent.
Embodiment 3
Two careless ethers 20%, pyriftalid 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with active ingredient quality percentage composition according to the conventional formulation method is 30% water dispersion granule.
Embodiment 4
Two careless ethers 10%, pyriftalid 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with active ingredient quality percentage composition according to the conventional formulation method is 20% wetting powder.
Embodiment 5
Two careless ethers 9%, pyriftalid 1%, calcium dodecyl benzene sulfonate 5%, APES 3%, solvent naphtha supplies 100%, and being mixed with active ingredient quality percentage composition according to the conventional formulation method is 10% missible oil.
Embodiment 6
Two careless ethers 5%, pyriftalid 75%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with active ingredient quality percentage composition according to the conventional formulation method is 80% water dispersion granule.
Embodiment 7
Two careless ethers 1%, pyriftalid 9%, calcium dodecyl benzene sulfonate 5%, APES 3%, solvent naphtha supplies 100%, is mixed with 10% missible oil.
Embodiment 8
Two careless ethers 40%, pyriftalid 20%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with active ingredient quality percentage composition according to the conventional formulation method is 60% wetting powder.
Embodiment 9
The biologicall test experiment
1), indoor active determination test
Utilize the preparation among the embodiment 1～4, measure its co-toxicity coefficient the barnyard grass grass.
Test method: the seed of quantitative barnyard grass grass is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, in illumination box, cultivate, broadcast back 3d, do the enterprising capable soil spraying of composition spray in crawler type and handle.Handle in the greenhouse, back and continue to cultivate, each handles the preventive effect to weeds routine observation, and each weeds fresh weight after handling of weighing behind the 30d is pressed the method for nineteen sixty propositions such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient shows that greater than 100 two kinds of active principles have synergistic effect, and co-toxicity coefficient shows that less than 100 two kinds of active principles have antagonism.Mensuration result is as shown in table 1.
The indoor determination of activity result of table 1
Can find out that from last table the co-toxicity coefficient after two kinds of active principles are composite explains that all greater than 100 the present invention has obvious synergistic effect.
2) field control effectiveness test of combinations of herbicides of the present invention.
Supply the reagent agent:
4 kinds of re-compounded binary herbicides among the embodiment 1～4.
The contrast medicament:
The two careless ether suspending agents (commercially available) of 100 grams per liters, 250 grams per liter pyriftalid SC (commercially available).
Confession studies thing: paddy rice
The paddy rice seedling grows fine, and robust plant does not have other damage by disease and insect.
Prevent and kill off object:
Grassy weed, broad leaved weed and sedge weeds such as barnyard grass grass, moleplant seed, difformed galingale herb, needle spikesedge herb, short arrowhead, mexicana.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and after converting the water dilution, utilize knapsack sprayer, and carrying out even spraying, shower nozzle is selected the special-purpose Fan spray head of weed killer herbicide for use.During spraying, note soup is evenly sprayed application in the experimental plot, accomplish not leak the phenomenon of spray, many sprays.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments.In addition, also to behind medicine, observe the condition of production of crop in 1～15d, whether crop had poisoning to investigate medicament.
Embodiments of the invention preparation weeding test effect see the following form (40d behind the medicine)
Medicament is to the security survey result of crop
More than handle the equal safety of paddy rice.
Claims (10)
1. a mixed herbicidal composite that contains two careless ethers and pyriftalid is characterized in that this Herbicidal combinations is main active ingredient with two careless ethers and pyriftalid, and the mass ratio of two careless ethers and pyriftalid is 1～99: 1～99.
2. mixed herbicidal composite according to claim 1 is characterized in that in this Herbicidal combinations that the mass ratio of two careless ethers and pyriftalid is 1～50: 1～50.
3. mixed herbicidal composite according to claim 2 is characterized in that in this Herbicidal combinations that the mass ratio of two careless ethers and pyriftalid is 1～30: 1～30.
4. mixed herbicidal composite according to claim 3 is characterized in that in this Herbicidal combinations that the mass ratio of two careless ethers and pyriftalid is 1～10: 1～15.
5. mixed herbicidal composite according to claim 1 is characterized in that two careless ethers and the two quality percentage composition in Herbicidal combinations of pyriftalid are 1～85%.
6. mixed herbicidal composite according to claim 5 is characterized in that two careless ethers and the two quality percentage composition in Herbicidal combinations of pyriftalid are 10～80%.
7. according to the mixed herbicidal composite described in the claim 1, it is characterized in that it is that the auxiliary agent that allows on main active ingredient and the agricultural chemicals is mixed with any one formulation with two careless ethers and pyriftalid.
8. mixed herbicidal composite according to claim 7 is characterized in that described formulation is wetting powder, water dispersible granules, missible oil or suspending agent.
9. the application of the described mixed herbicidal composite of claim 1 in the weed killer herbicide of preparation paddy field postemergence weed control.
10. the described mixed herbicidal composite of claim 1 is prevented and kill off the application in the weed killer herbicide of grassy weed in the 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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| CN102461512A true CN102461512A (en) | 2012-05-23 |
| CN102461512B CN102461512B (en) | 2014-04-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228026A (en) * | 2011-05-25 | 2011-11-02 | 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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2010
- 2010-11-19 CN CN201010552892.8A patent/CN102461512B/en active Active
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 (1)
| Title |
|---|
| 刘安昌 等: "新型除草剂环酯草醚的合成研究", 《世界农药》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228026A (en) * | 2011-05-25 | 2011-11-02 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing bispyribac-sodium and pyrimidinyloxy (thio) benzoates |
| 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 |
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| CN102461512B (en) | 2014-04-16 |
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