CN105475316A - Mixed weed killer with pyrasulfotole and isoproturon - Google Patents
Mixed weed killer with pyrasulfotole and isoproturon Download PDFInfo
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- CN105475316A CN105475316A CN201511023315.9A CN201511023315A CN105475316A CN 105475316 A CN105475316 A CN 105475316A CN 201511023315 A CN201511023315 A CN 201511023315A CN 105475316 A CN105475316 A CN 105475316A
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- Prior art keywords
- isoproturon
- herbicide
- mixed
- sulphonyl grass
- grass pyrazoles
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a mixed weed killer with pyrasulfotole and isoproturon. Pyrasulfotole and isoproturon serves as the main effective components for the weed killer, and the mass ratio of pyrasulfotole to isoproturon is (1-68):(1-68). The mixed weed killer has the advantages of being broad in spectrum, rapid in effect, high in efficiency, low in toxicity, safe, environmentally friendly and the like after being applied to wheat field after-seedling weeding.
Description
Technical field
The invention belongs to technical field of pesticide, especially weed killer herbicide field, relate to the binary built agent of sulphonyl grass pyrazoles and isoproturon.This herbicidal composition can be applicable to wheat paddock postemergence weed control.
Background technology
Sulphonyl grass pyrazoles (pyrasulfotole), chemical name: (5-hydroxyl-1,3-dimethyl pyrazole-4-base) (α, α, α-three fluoro-2-mesyl-p-tolyl) ketone, structural formula is:
sulphonyl grass pyrazoles is the new herbicides that Bayer Cropscience found in 1999, and belonging to benzoylpyrazole compounds, is HPPD inhibitor.Owing to indirectly suppressing the biosynthesis of carotenoid to the suppression of HPPD, result causes plant meristematic tissue to produce alphosis, finally causes death.This weed killer herbicide has wide spectrum removing activity, and Miao Qian, Miao Houjun can use, and because wheatland Long-Time Service sulfonylurea herbicide prevents and kill off broad leaved weed, causes a lot of resistance broad leaved weed to occur, and rises to dominant population in some areas.The appearance of this product can solve the problem of wheatland resistant weed well.Mainly prevent and kill off object and comprise the broad leaved weeds such as chickweed, lamb's-quarters, black nightshade, amaranth, piemarker, spontaneous rape, tartarian buckwheat.
Isoproturon (isoproturon), chemical name: 3-p-cumenyl-1,1-dimethyl urea, structural formula is
isoproturon is substituted urea class selective herbicide.After isoproturon medicament is absorbed by plant root, conduct and be accumulated in blade, inhibited photosynthesis, causing weeds dead.Can be used for preventing and kill off wheat paddock annual weed, as lady's-grass, amur foxtail, Alopecurus, annual bluegrass, hard Cao, Wang grass, wild oat, Hairy Bittercress, tongue of sparrow grass, lamb's-quarters, cyclophanes thread etc.
Current wheat 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 weeds of wheat completely effectively, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is too short, consumption is excessive or the uneven residual hazard all easily caused this season crop or succession crop of dispenser.Therefore, the present invention selects and can herbicide compose different, be made into mixture and use after the sulphonyl grass pyrazoles of pluses and minuses complementation and isoproturon two kinds of suitable decrements of weed killer herbicide, not only 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 mixed herbicide containing sulphonyl grass pyrazoles and isoproturon.
Another object of the present invention is to provide the application of this weed killer herbicide in wheat paddock weeding.
Containing a mixed herbicide for sulphonyl grass pyrazoles and isoproturon, it is characterized in that this weed killer herbicide with sulphonyl grass pyrazoles and isoproturon for principle active component, the mass ratio of the careless pyrazoles of sulphonyl and isoproturon is 1 ~ 68:1 ~ 68.The mass ratio of preferred sulphonyl grass pyrazoles and isoproturon is 1 ~ 60:1 ~ 61, more preferably 6 ~ 59:1, most preferably is 12 ~ 59:1.
In mixed herbicide, mass percentage in weed killer herbicide of both sulphonyl grass pyrazoles and isoproturon is 1 ~ 85%, and preferred mass percentage composition is 10 ~ 80%, more preferably 25 ~ 65%.
In the binary built preparation of sulphonyl grass pyrazoles of the present invention and isoproturon, except active ingredient such as sulphonyl grass pyrazoles and isoproturon etc., the auxiliary agents such as conventional surfactants, antipoison, 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, wetting powder, water dispersible granules.
The application of mixed herbicide of the present invention in wheat paddock weeding, especially in the application of preventing and kill off grassy weed and broad leaved weed in wheat paddock, having the advantage such as broad weed-killing spectrum, instant effect, residual low, low toxicity, safety and environmental protection, is the wheat crop chemical herbicide of high-quality.
Compared to the prior art, beneficial effect of the present invention:
Combinations of herbicides of the present invention, there is the advantages such as broad weed-killing spectrum, instant effect, efficient, low toxicity, residual low, safety and environmental protection, pesticide usage amount can be reduced, reduce residue of pesticide, Environmental compatibility is good, to advantages such as person poultry safeties, be the wheat crop chemical herbicide of high-quality.
1, activity of weeding is high.Herbicidal combinations of the present invention can kill weeds by two kinds of different mechanism, and make Weed Resistance produce speed and reduce, effective ingredient consumption reduces, but drastically increases the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Sulphonyl grass pyrazoles is broad spectrum weeding agent, and be mainly used in preventing and kill off broad leaved weed, isoproturon is mainly used in barley field and prevents and kill off annual gramineous weed.After both mixing, the control efficiency to 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 the use content of various active ingredient reduces, make medicament under the prerequisite that improve drug effect, reduce residue of pesticide, it also avoid and raising be have also been obtained to wheat and succession crop safety, avoid agricultural chemicals produces residual hazard possibility to people and animals.
Embodiment
Below by way of specific embodiment, the present invention is further described:
Embodiment 1
Sulphonyl grass pyrazoles 59%, isoproturon 1%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, ammonium sulfate 2.5%, polyvinyl alcohol 2%, kaolin to 100%, formulation method is conveniently mixed with the water dispersion granule that mass percentage is 60%.
Embodiment 2
Sulphonyl grass pyrazoles 24%, isoproturon 1%, alkylphenol polyoxyethylene 4%, phenethyl phenol polyethenoxy rice 15%, dimethylbenzene to 100%, formulation method is conveniently mixed with the missible oil that mass percentage is 25%.
Embodiment 3
Sulphonyl grass pyrazoles 60%, isoproturon 5%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, wooden sodium iodate 4%, kaolin to 100%, formulation method is conveniently mixed with the wetting powder that mass percentage is 65%.
Embodiment 4
Sulphonyl grass pyrazoles 30%, isoproturon 5%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 5%, tributyl phosphate 2%, silicone oil 0.2%, add water to 100%, formulation method is conveniently mixed with the suspending agent that mass percentage is 35%.
Embodiment 5
Sulphonyl grass pyrazoles 3%, isoproturon 12%, alkylphenol polyoxyethylene 3%, methyl naphthalene sulfonate formaldehyde condensate 6%, aluminium-magnesium silicate 0.5%, tributyl phosphate 2%, ethylene glycol 5%, 200# solvent naphtha 20%, water to 100%, formulation method is conveniently mixed with the aqueous emulsion that mass percentage is 15%.
Embodiment 6
Sulphonyl grass pyrazoles 1%, isoproturon 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
Sulphonyl grass pyrazoles 10%, isoproturon 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
Sulphonyl grass pyrazoles 19%, isoproturon 61%, 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 80%.
Comparative example 1
Sulphonyl grass pyrazoles 1%, isoproturon 70%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 8%, ammonium sulfate 5%, polyvinyl alcohol 3%, kaolin to 100%, formulation method is conveniently mixed with the water dispersion granule that mass percentage is 71%.
Comparative example 2
Sulphonyl grass pyrazoles 1%, isoproturon 80%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 10%, ammonium sulfate 4%, polyvinyl alcohol 1%, kaolin to 100%, formulation method is conveniently mixed with the water dispersion granule that mass percentage is 81%.
Embodiment 9
1) toxicity determination test
Utilize sulphonyl grass pyrazoles (A) in embodiment 1 ~ 4 and isoproturon (B) preparation, measure its co-toxicity coefficient to kitchen garden.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative kitchen garden, sows 10 ~ 15 seeds in every glass, cultivates in illumination box, when kitchen garden 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, and the method proposed by nineteen sixties such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 120, shows that two kinds of active principles have synergistic effect, and co-toxicity coefficient is between 80-120, and show that two kinds of active principles are summation action, co-toxicity coefficient is less than 80, 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 greater than 120, illustrates that the present invention has obvious synergistic effect.
Utilize sulphonyl grass pyrazoles (A) in embodiment 1 ~ 4 and isoproturon (B) preparation, measure its co-toxicity coefficient to barnyard grass.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative barnyard grass, sows 10 ~ 15 seeds in every glass, cultivates in illumination box, when barnyard grass 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, and the method proposed by nineteen sixties such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 120, shows that two kinds of active principles have synergistic effect, and co-toxicity coefficient is between 80-120, and show that two kinds of active principles are summation action, co-toxicity coefficient is less than 80, 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 greater than 120, 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:
30% sulphonyl grass pyrazoles water dispersible granules (commercially available), 75% isoproturon wetting powder (commercially available).
For studying thing: wheat
Wheat seedling grows fine, robust plant, without other damage by disease and insect
Prevent and kill off object:
Chickweed, kitchen garden, lady's-grass, wild oat, green foxtail, barnyard grass.
Test method:
According to the area of experimental plot, the good various medicament of precise, after being watered dilution, utilizes knapsack sprayer, carries out even spraying, the Fan spray head selecting weed killer herbicide special of spraying.During spraying, liquid be noted evenly to spray application in experimental plot, the spray of anti-Zhiduo County, drain spray phenomenon.
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 growing state (consumption is the consumption of every mu of active ingredient) of crop also in 1-15 days, 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 field control effectiveness test result (after medicine 20d)
Table 3 field control effectiveness test result (after medicine 40d)
By table 2, table 3 is known, and Herbicidal combinations of the present invention has expansion herbicidal spectrum, improves activity of weeding, and has quick-acting and lasting effect.
Table 4 medicament is to the security survey result of crop
As shown in Table 4, the wheat in each process community grows fine, and has no any medicine spot, illustrates that various medicament is all safe to wheat.
Claims (10)
1., containing a mixed herbicide for sulphonyl grass pyrazoles and isoproturon, it is characterized in that this weed killer herbicide with sulphonyl grass pyrazoles and isoproturon for principle active component, the mass ratio of the careless pyrazoles of sulphonyl and isoproturon is 1 ~ 68:1 ~ 68.
2. the mixed herbicide containing sulphonyl grass pyrazoles and isoproturon according to claim 1, is characterized in that the mass ratio of sulphonyl grass pyrazoles and isoproturon in this weed killer herbicide is 1 ~ 60:1 ~ 61.
3., according to the mixed herbicide described in claim 2, it is characterized in that both sulphonyl grass pyrazoles and the isoproturon mass percentage in weed killer herbicide is 6 ~ 59:1.
4., according to the sulphonyl grass pyrazoles described in claims 1 to 3 and isoproturon mixed herbicide, it is characterized in that both sulphonyl grass pyrazoles and the isoproturon mass percentage in weed killer herbicide is 1 ~ 85%.
5., according to the mixed herbicide described in claim 4, it is characterized in that both sulphonyl grass pyrazoles and the isoproturon mass percentage in weed killer herbicide is 10 ~ 80%.
6. the mixed herbicide containing sulphonyl grass pyrazoles and isoproturon according to claim 5, is characterized in that both sulphonyl grass pyrazoles and the isoproturon mass percentage in weed killer herbicide is 25 ~ 65%.
7., according to the mixed herbicide described in claim 1-6 any one, it is characterized in that it is mixed with any one formulation with sulphonyl grass pyrazoles and isoproturon for the auxiliary agent that principle active component and agricultural chemicals allow.
8., according to the mixed herbicide described in claim 7, it is characterized in that described formulation is missible oil, suspending agent, aqueous emulsion, microemulsion, wetting powder, water dispersible granules.
9. the application of mixed herbicide according to claim 1 in wheat paddock weeding.
10. mixed herbicide according to claim 1 is preventing and kill off the application of grassy weed and broad leaved weed in wheat paddock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023315.9A CN105475316A (en) | 2015-12-29 | 2015-12-29 | Mixed weed killer with pyrasulfotole and isoproturon |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023315.9A CN105475316A (en) | 2015-12-29 | 2015-12-29 | Mixed weed killer with pyrasulfotole and isoproturon |
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| CN105475316A true CN105475316A (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511023315.9A Pending CN105475316A (en) | 2015-12-29 | 2015-12-29 | Mixed weed killer with pyrasulfotole and isoproturon |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1422258A (en) * | 2000-03-31 | 2003-06-04 | 拜尔作物科学有限公司 | Benzoylpyrazols and their use as herbicides |
| CN101150953A (en) * | 2005-04-01 | 2008-03-26 | 拜尔作物科学股份公司 | Synergistic herbicidal agents that are compatible with cultivated plants, said agents containing herbicides from the group comprising benzoyl pyrazoles |
| EP2123158A1 (en) * | 2006-12-21 | 2009-11-25 | Kumiai Chemical Industry CO., LTD. | Herbicide composition |
-
2015
- 2015-12-29 CN CN201511023315.9A patent/CN105475316A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1422258A (en) * | 2000-03-31 | 2003-06-04 | 拜尔作物科学有限公司 | Benzoylpyrazols and their use as herbicides |
| CN101150953A (en) * | 2005-04-01 | 2008-03-26 | 拜尔作物科学股份公司 | Synergistic herbicidal agents that are compatible with cultivated plants, said agents containing herbicides from the group comprising benzoyl pyrazoles |
| EP2123158A1 (en) * | 2006-12-21 | 2009-11-25 | Kumiai Chemical Industry CO., LTD. | Herbicide composition |
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Application publication date: 20160413 |