CN102461517A - Hybrid weeding composite containing Bispyribac-sodium and mefenacet - Google Patents
Hybrid weeding composite containing Bispyribac-sodium and mefenacet Download PDFInfo
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- CN102461517A CN102461517A CN2010105522550A CN201010552255A CN102461517A CN 102461517 A CN102461517 A CN 102461517A CN 2010105522550 A CN2010105522550 A CN 2010105522550A CN 201010552255 A CN201010552255 A CN 201010552255A CN 102461517 A CN102461517 A CN 102461517A
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- mefenacet
- careless ethers
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Abstract
The invention belongs to the field of the pesticide, relating to a hybrid weeding composite containing Bispyribac-sodium and mefenacet. The hybrid weeding composite takes the Bispyribac-sodium and the mefenacet as effective ingredients with the mass ratio of (1-99):(1-99). The weeding composite can prevent and remove paddy field grass family weeds, broad leaf weeds and cyperaceae weeds. On the premise of improving pesticide effect, the weeding composite can delay weed resistance, has the advantages of wide weeding spectrum and long effect lasting period if being compared with a single agent, is safe to the paddy and next batch of crop and is an ideal paddy field weeding composite.
Description
Technical field
The invention belongs to pesticide field, weed killer herbicide field especially is specifically related to the binary built mixed herbicidal composite of a kind of two careless ether and mefenacet.This Herbicidal combinations is used the paddy field postemergence weed control and is had remarkable result.
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:
Two careless ethers are to belong to benzoic acid derivative, are highly active ALS inhibitor, and efficient, wide spectrum, consumption are extremely low.Effectively prevent and kill off barnyard grass in paddy field and other grassy weeds, double most of broad leaved weeds, some sedge weeds and the Stam F-34 controlled produces resistance barnyard grass grass.
Mefenacet has another name called the careless amine of ring.Chemical name: 2-[4-morpholinodithio-2-base oxygen-N-exalgine, this weed killer herbicide is a kind of selectivity inner sucting conduction type weed killer herbicide.Main through bud scale and root absorption, conduct to young shoot and the tender leaf of weeds through xylem and phloem, stop weed growth point cell division to be extended, finally cause plant death.Strong to the transplanting rice selectivity, because solvability is low in water, so under the water conservation condition; The dispenser activity of weeding is the highest, and soil is very strong to these article absorption affinity, and the dose major part is adsorbed on upper soll layer after the dispenser; And at upper soll layer 1cm with interior formation processing layer; Can avoid contacting of paddy growth point and this medicament like this, make it produce higher safety, and the weeds such as barnyard grass grass that growing point is in upper soll layer are had stronger prevention fertility and kill ability; And it is the perennial weed of the seminal propagation on top layer also had inhibitory action, but low to deep layer weeds effect.
At present; Herbicide for paddy field is limit by crop safety at present; 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 the complementary two careless ether of pluses and minuses and two kinds of weed killer herbicides of mefenacet 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 objective of the invention is present situation according to 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 mefenacet; This Herbicidal combinations can not only improve the preventive effect of medicament to weeds, and to when stubble and succession crop safety, has reduced peasant's drug cost simultaneously.
A kind of mixed herbicidal composite that contains two careless ethers and mefenacet of the present invention, this Herbicidal combinations is main active ingredient with two careless ethers and mefenacet, the mass ratio of two careless ethers and mefenacet is 1～99: 1～99.The mass ratio of preferred two careless ether and mefenacet is 1～40: 1～60, and the mass ratio of further preferred two careless ethers and mefenacet is 1～20: 1～20, and the mass ratio of most preferably two careless ethers and mefenacet is 1～10: 1～10.
In mixed herbicidal composite, the two quality percentage composition in Herbicidal combinations of two careless ethers and mefenacet 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 mefenacet; Except two kinds of active ingredients; Can also add the auxiliary agent that allows on the agricultural chemicals such as surfactant, thickener, solvent or solid packing; Be processed into multiple formulation, like missible oil, suspending agent, water dispersion granule or wetting powder etc.
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 removing activity.
2, herbicidal spectrum is wide, and the lasting period is long.Two careless ethers and mefenacet can improve the preventive effect of multiple annual gramineous weed and part broad leaved weed and sedge weed, thereby prolong the lasting period of medicament after mixing.
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 mefenacet, 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%, mefenacet 20%, 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 25% cream preparation.
Embodiment 2
Two careless ethers 10%; Mefenacet 20%, 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 30% suspending agent.
Embodiment 3
Two careless ethers 20%, mefenacet 60%, 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 80% water dispersion granule.
Embodiment 4
Two careless ethers 15%, mefenacet 40%, 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 55% wetting powder.
Embodiment 5
Two careless ethers 1%, mefenacet 9%, 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% cream preparation.
Embodiment 6
Two careless ethers 14%, mefenacet 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 15% cream preparation.
Embodiment 7
Two careless ethers 40%, mefenacet 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 50% wetting powder.
Embodiment 8
Two careless ethers 1%, mefenacet 20%, 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 21% cream preparation.
Embodiment 9
Two careless ethers 60%; Mefenacet 1.5%, 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 61.5% suspending agent.
Embodiment 10
Two careless ethers 1%, mefenacet 70%, 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 71% water dispersion granule.
Embodiment 11
Two careless ethers 80%, mefenacet 5%, 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 85% wetting powder.
Embodiment 12
Two careless ethers 40%, mefenacet 4%, 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 44% cream preparation.
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 binary built Herbicidal combinations among the embodiment 1～4.
The contrast medicament:
The two careless ether suspending agents (commercially available) of 100 grams per liters, mass percent concentration 50% mefenacet 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:
Broad leaved weed, sedge weed and grassy weeds such as barnyard grass grass, moleplant seed, needle spikesedge herb, short arrowhead, mexicana, four Ye Ping.
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
The medicament that above data declaration the present invention uses is to the equal safety of paddy rice.
Claims (10)
1. a mixed herbicidal composite that contains two careless ethers and mefenacet is characterized in that this Herbicidal combinations is main active ingredient with two careless ethers and mefenacet, and the mass ratio of two careless ethers and mefenacet is 1～99: 1～99.
2. the mixed herbicidal composite that contains two careless ethers and mefenacet according to claim 1 is characterized in that the mass ratio of pair careless ethers and mefenacet is 1～40: 1～60 in this Herbicidal combinations.
3. the mixed herbicidal composite that contains two careless ethers and mefenacet according to claim 2 is characterized in that the mass ratio of pair careless ethers and mefenacet is 1～20: 1～20 in this Herbicidal combinations.
4. the mixed herbicidal composite that contains two careless ethers and mefenacet according to claim 3 is characterized in that the mass ratio of pair careless ethers and mefenacet is 1～10: 1～10 in this Herbicidal combinations.
5. according to claim 1,2,3 or 4 described mixed herbicidal composites, it is characterized in that two careless ethers and the two quality percentage composition in Herbicidal combinations of mefenacet 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 mefenacet are 10～80%.
7. mixed herbicidal composite according to claim 1 is characterized in that this mixed herbicidal composite 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 mefenacet.
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 |
|---|---|---|---|
| CN 201010552255 CN102461517B (en) | 2010-11-19 | 2010-11-19 | Hybrid weeding composite containing Bispyribac-sodium and mefenacet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010552255 CN102461517B (en) | 2010-11-19 | 2010-11-19 | Hybrid weeding composite containing Bispyribac-sodium and mefenacet |
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| CN102461517A true CN102461517A (en) | 2012-05-23 |
| CN102461517B CN102461517B (en) | 2013-12-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511079A (en) * | 2019-08-21 | 2019-11-29 | 中国农业大学 | A kind of compound medicine fertilizer and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004045285A2 (en) * | 2002-11-21 | 2004-06-03 | Syngenta Participations Ag | Herbicidal composition |
| CN101115389A (en) * | 2005-02-04 | 2008-01-30 | 辛根塔参与股份公司 | Process for the control of undesired plant growth in rice |
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- 2010-11-19 CN CN 201010552255 patent/CN102461517B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004045285A2 (en) * | 2002-11-21 | 2004-06-03 | Syngenta Participations Ag | Herbicidal composition |
| CN101115389A (en) * | 2005-02-04 | 2008-01-30 | 辛根塔参与股份公司 | Process for the control of undesired plant growth in rice |
Non-Patent Citations (3)
| Title |
|---|
| 吴长兴 等: "几种除草剂的生物测定及复配效应研究", 《浙江农业学报》, vol. 12, no. 6, 25 November 2000 (2000-11-25), pages 374 - 377 * |
| 谷先兵 等: "20%一奇WP(双草醚)防除移栽稻田杂草试验", 《安徽农业科学》, vol. 28, no. 5, 25 October 2000 (2000-10-25), pages 630 * |
| 赵学平 等: "农美利等除草剂对水稻药害的研究", 《浙江农业学报》, vol. 12, no. 6, 25 November 2000 (2000-11-25), pages 368 - 373 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511079A (en) * | 2019-08-21 | 2019-11-29 | 中国农业大学 | A kind of compound medicine fertilizer and preparation method thereof |
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