CN102461554A - Mixed weeding composite containing bispyribac and pyrazosulfuron - Google Patents
Mixed weeding composite containing bispyribac and pyrazosulfuron Download PDFInfo
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- CN102461554A CN102461554A CN2010105528769A CN201010552876A CN102461554A CN 102461554 A CN102461554 A CN 102461554A CN 2010105528769 A CN2010105528769 A CN 2010105528769A CN 201010552876 A CN201010552876 A CN 201010552876A CN 102461554 A CN102461554 A CN 102461554A
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- pyrazosulfuron
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Abstract
The invention belongs to the technical field of agricultural agents, and particularly relates to a mixed weeding composite containing bispyribac and pyrazosulfuron. The weeding composite takes the bispyribac and the pyrazosulfuron as main active ingredients, and the mass ratio of the bispyribac and the pyrazosulfuron is 1-99/1-99. The composite and agricultural agent-allowed auxiliary agents are processed into missible oils, suspending agents, water dispersible granules, wettable powder and various dosage forms. The weeding composite can prevent and weed ephemeral weeds of grass families, broad leaves and sedge families in paddy field, compared with a single herbicide, under the premise of improving the efficacy, the mixed weeding composite has the weakened herbicide resistance, wide weeding scope and long duration, is safe to paddy and succeeding crops, and is an ideal weeding composite for the paddy field.
Description
Technical field
The invention belongs to pesticide field, relate to a kind of mixed herbicidal composite that contains two careless ethers and pyrazosulfuron.This Herbicidal combinations can prepare the weed killer herbicide of 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:
Pyrazosulfuron has another name called careless jinx, Mercury, Han Lexing.Chemical name: 5-(4, the amino sulphur of 6-dimethoxypyridin base-2-carbamyl-1-methylpyrazole-4-carboxylic acid (ethyl ester), structural formula is:
This medicine, mainly is absorbed through root system for selectivity inner sucting conduction type weed killer herbicide in sulfonylurea herbicide, in weeds plant body, shifts rapidly, suppresses growth, and weeds are dead gradually.Paddy rice can be decomposed this medicament, to almost not influence of paddy growth.Efficacy stability, safe, 25～35 days lasting periods.Be applicable to rice seedling bed, live field, transplant field.Prevent and kill off annual and perennial broadleaf weed and sedge weed, like different in nature nutgrass flatsedge, Herba Cyperi Glomerati, firefly Lin, Monochoria vaginalis, Chinese celery, mexicana, angustifolia arrowhead herb, pondweed, blue or green duckweed, Eclipta prostrata.
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 pyrazosulfuron 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 pyrazosulfuron; This Herbicidal combinations can not only improve the preventive effect to weeds, and to when stubble and succession crop safety, has reduced drug cost simultaneously.
The purpose of this invention is to provide a kind of mixed herbicidal composite that contains two careless ethers and pyrazosulfuron, it is characterized in that this Herbicidal combinations is main active ingredient with two careless ethers and pyrazosulfuron, the mass ratio of two careless ethers and pyrazosulfuron is 1～99: 1～99.The mass ratio of preferred two careless ether and pyrazosulfuron is 1～60: 1～60, and further the preferred mass ratio is 1～40: 1～40, and most preferably mass ratio is 1～20: 1～15.
In mixed herbicidal composite, the two quality percentage composition in Herbicidal combinations of two careless ethers and pyrazosulfuron is 1～85%, and the preferred mass percentage composition is 10～80%.
In the binary built composition of two careless ether of the present invention and pyrazosulfuron; Except two kinds of active ingredients; Different surfaces activating agent, thickener, solvent or solid packing etc. 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 and 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 removing activity.
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 pyrazosulfuron is mainly to be the weed killer herbicide of barnyard grass grass.Both can improve the preventive effect of multiple annual gramineous weed, broad leaved weed and sedge weed, thereby prolong the lasting period of medicament after mixing.
3, safe.Medicament of the present invention also is improved to the safety of paddy field and succession crop under the prerequisite that has improved drug effect.
Embodiment
Herbicidal combinations of the present invention is according to the former medicine correlation properties of two careless ethers and pyrazosulfuron, 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%, pyrazosulfuron 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%; Pyrazosulfuron 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%, pyrazosulfuron 10%, NNO (sodium methylene bis-naphthalene 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%, pyrazosulfuron 10%, NNO (sodium methylene bis-naphthalene 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 2%, pyrazosulfuron 78%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100% is 80% dispersible granule but be mixed with active ingredient quality percentage composition according to the conventional formulation method.
Embodiment 6
Two careless ethers 1%, pyrazosulfuron 14%, 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 15% missible oil.
Embodiment 7
Two careless ethers 19%, pyrazosulfuron 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 20% missible oil.
Embodiment 8
Two careless ethers 10%, pyrazosulfuron 60%, NNO (sodium methylene bis-naphthalene 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 70% 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, 10% pyrazosulfuron wetting powder (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, Monochoria vaginalis.
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 pyrazosulfuron is characterized in that this Herbicidal combinations is main active ingredient with two careless ethers and pyrazosulfuron, and the mass ratio of two careless ethers and pyrazosulfuron 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 pyrazosulfuron is 1～60: 1～60.
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 pyrazosulfuron is 1～40: 1～40.
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 pyrazosulfuron is 1～20: 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 pyrazosulfuron 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 pyrazosulfuron are 10～80%.
7. mixed herbicidal composite according to claim 1 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 pyrazosulfuron.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105528769A CN102461554A (en) | 2010-11-19 | 2010-11-19 | Mixed weeding composite containing bispyribac and pyrazosulfuron |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105528769A CN102461554A (en) | 2010-11-19 | 2010-11-19 | Mixed weeding composite containing bispyribac and pyrazosulfuron |
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| CN102461554A true CN102461554A (en) | 2012-05-23 |
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| CN2010105528769A Pending CN102461554A (en) | 2010-11-19 | 2010-11-19 | Mixed weeding composite containing bispyribac and pyrazosulfuron |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271063A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Weeding composition |
| CN106172387A (en) * | 2016-07-11 | 2016-12-07 | 合肥尚邦植保科技有限公司 | A kind of wettable powder preventing and kill off rice direct seeding field annual grassy weeds |
| CN106508940A (en) * | 2016-10-18 | 2017-03-22 | 张德军 | A (pyrazosulfuron-ethyl)-(cyhalofop-butyl)-(bispyribac-sodium) dispersible oil suspending agent, a processing method thereof and uses of the dispersible oil suspending agent |
| CN109730096A (en) * | 2019-01-30 | 2019-05-10 | 湖南省农业生物技术研究所 | A kind of herbicidal composition containing chamomile essential oil and pyrazosulfuron and its application |
| CN111084031A (en) * | 2019-12-25 | 2020-05-01 | 宁夏绿先锋农业机械化服务有限公司 | Weed prevention and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906285A (en) * | 1987-12-22 | 1990-03-06 | Kumiai Chemical Industry Co., Ltd. | Pyrimidine derivatives and herbicidal method and compositions |
| CN1143453A (en) * | 1996-07-11 | 1997-02-26 | 江苏省激素研究所 | Disposable herbicide for preventing and killing weeds in rice field |
| CN1247703A (en) * | 1998-07-08 | 2000-03-22 | 罗纳-普朗克农业公司 | Novel herbicide composition |
-
2010
- 2010-11-19 CN CN2010105528769A patent/CN102461554A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906285A (en) * | 1987-12-22 | 1990-03-06 | Kumiai Chemical Industry Co., Ltd. | Pyrimidine derivatives and herbicidal method and compositions |
| CN1143453A (en) * | 1996-07-11 | 1997-02-26 | 江苏省激素研究所 | Disposable herbicide for preventing and killing weeds in rice field |
| CN1247703A (en) * | 1998-07-08 | 2000-03-22 | 罗纳-普朗克农业公司 | Novel herbicide composition |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271063A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Weeding composition |
| CN103271063B (en) * | 2013-06-05 | 2015-05-27 | 江苏龙灯化学有限公司 | Weeding composition |
| CN106172387A (en) * | 2016-07-11 | 2016-12-07 | 合肥尚邦植保科技有限公司 | A kind of wettable powder preventing and kill off rice direct seeding field annual grassy weeds |
| CN106508940A (en) * | 2016-10-18 | 2017-03-22 | 张德军 | A (pyrazosulfuron-ethyl)-(cyhalofop-butyl)-(bispyribac-sodium) dispersible oil suspending agent, a processing method thereof and uses of the dispersible oil suspending agent |
| CN109730096A (en) * | 2019-01-30 | 2019-05-10 | 湖南省农业生物技术研究所 | A kind of herbicidal composition containing chamomile essential oil and pyrazosulfuron and its application |
| CN109730096B (en) * | 2019-01-30 | 2021-09-28 | 湖南省农业生物技术研究所 | Herbicide composition containing chamomile essential oil and pyrazosulfuron-ethyl and application thereof |
| CN111084031A (en) * | 2019-12-25 | 2020-05-01 | 宁夏绿先锋农业机械化服务有限公司 | Weed prevention and control method |
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Application publication date: 20120523 |