CN102461548B - Mixed herbicide containing cinosulfuron, bispyribac-sodium and molinate and application thereof - Google Patents
Mixed herbicide containing cinosulfuron, bispyribac-sodium and molinate and application thereof Download PDFInfo
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- CN102461548B CN102461548B CN2010105528082A CN201010552808A CN102461548B CN 102461548 B CN102461548 B CN 102461548B CN 2010105528082 A CN2010105528082 A CN 2010105528082A CN 201010552808 A CN201010552808 A CN 201010552808A CN 102461548 B CN102461548 B CN 102461548B
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Abstract
The invention relates to a herbicide, and specifically discloses a mixed herbicide containing cinosulfuron, bispyribac-sodium and molinate and use thereof, belonging to the technical field of pesticide. The herbicide takes the cinosulfuron, the bispyribac-sodium and the molinate as main effective ingredients; and a mass ratio of the cinosulfuron, the bispyribac-sodium and the molinate is 0.1-8.0:0.1-80-0.1-80. The mixed herbicide provided by the invention has obvious effects in application of weeding for paddy fields, in particular the application of preventing and eliminating various gramineae weeds, sedge weeds and broadleaf weeds in the paddy fields. Compared with a single dose, under the premise of improving the drug effect, the herbicide provided by the invention delays resistibility of the weeds, has a wide weeding spectrum and a long lasting period, and is safe to rice and succeeding crops.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of weed killer herbicide, be specifically related to mixed herbicide and the application thereof of a kind of cinosulfuron-containing, two careless ether and molinate.
Background technology
China is the country with the longest history of rice cropping in the world, and paddy rice is one of China's staple food crop, and approximately 3,300 ten thousand hectares of cultivated areas, account for 29% of plant of grain crops area.
Not weeding of field it is reported that annual national paddy rice all is subject to crop smothering in various degree, if can make the paddy rice underproduction more than 50%.Weeds have the paddy field main harm: barnyard grass, moleplant seed, reed, firefly Lin, Herba Cyperi Glomerati, difformed galingale herb, cyperus iria, miliary fimbristylis herb, pondweed, Eclipta prostrata, wild arrowhead, Monochoria vaginalis etc.The economic loss caused in order to reduce crop smothering, reduce labor intensity, and also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is accepted by people gradually simultaneously.
In recent years, along with increasing and the extensive popularization of chemical control technology in agricultural production of weed killer herbicide kind, chemical weed control has been widely used in each period of paddy growth.The choose reasonable weed killer herbicide not only can reduce friend peasant labour intensity, shorten working time, but also can reduce, cultivate cost, reach the purpose of volume increase.
Cinosulfuron (Cinosulfuron), have another name called the first cinosulfuron, a kind of sulfonylurea herbicide, formal name used at school 1-(4,6-dimethoxy-1,3,5-triazines-2-yl)-3-[2-(2-methoxy ethoxy) phenyl sulphonyl] urea, its structural formula is as follows:
Cinosulfuron mainly absorbs by root and stem, is sent to meristematic tissue by conducting tissue, suppresses the biosynthesis of branched-chain amino acid (as serine, isoleucine).After medication, weeds can be not dead immediately, but stop growing, and after 5-10 days, plant starts yellow, withered death.In the paddy rice body, active ingredient can be by urea bridge fracture, after methoxyl group hydrolysis, deamination and phenyl ring hydrolysis and the sucrose yoke approach such as close, finally be metabolized to non-poisonous material, half life period is less than 1 day in rice root, and the half life period is 3 days in the paddy rice leaf, so to rice safety.But, due to its water-soluble large (3.7g/L water), in water leaking paddy field, thereby may focus on the rice root district with water, paddy rice is caused to poisoning.For dry sowing, water, broadcast annual broadleaf weed and the sedge weeds such as rice field control rhizoma alismatis, nutgrass flatsedge, pondweed, arrowhead, Monochoria vaginalis, invalid to barnyard grass and moleplant seed etc.
Two careless ethers (bispyribac-sodium), have another name called the salicylic acid Sulfadiazine Compound, is the pyrimidine Type salicylic acid broad-spectrum herbicide by the exploitation of Japanese combinatorial chemistry company, chemical name: 2, two (4, the 6-SDM base-2-oxygen base) Sodium Benzoates of 6-, its structural formula is as follows:
Two careless ether is highly active ALS inhibitor, by the biosynthesis that hinders branched-chain amino acid, work, mainly the direct Tanaka of paddy rice, use, prevent and kill off grassy weed, can prevent and kill off the barnyard grass of 1～7 leaf phase especially, double most of broad leaved weeds, some sedge weeds and the Stam F-34 controlled produces the resistance barnyard grass, and consumption is extremely low, has broad application prospects.
Molinate (molinate), commodity are called molinate, are the dithiocarbamate herbicides by the exploitation of Syngenta (first just reaching) company, chemical name: N, N-hexa-methylene thioxanthamide, its structural formula is as follows:
Molinate belongs to the lipoid synthetic inhibitor, is a kind of rice field herbicides special of inner sucting conduction type, the selective herbicide of control barnyard grass in paddy field.Molinate carries out the soil treatment cauline leaf of holding concurrently to be processed, after imposing on Tanaka, because proportion is greater than water, and be deposited in the interface of water and mud, form the medicine layer of high concentration, weeds are during by the medicine layer, can be rapidly by primary root, especially by bud scale, absorbed, and be accumulated in the meristematic tissue of growing point, stop protein synthetic.Molinate can also suppress the a-amylase activity, stops or weakening the hydrolysis of starch, and the synthetic and cell division degradedness of protein is supplied with, and the cell of being injured expands, and the growing point distortion is died and dead.Seed rice through vernalization is sowed on the medicine layer, and it is few that the rice root is passed down through medicine layer absorption dose, and bud scale upwards growth does not pass through the medicine layer, thereby can not be injured.Molinate is effective to the various environmental barnyard grass of control 1-4 leaf phase, and medication is also effective to needle spikesedge herb and cyperus iria during morning, but invalid to broadleaved herb, and being applicable to take barnyard grass is main rice seedling bed, live field and rice transplanting field.Because molinate herbicide spectrum is narrow, use can make weeds in paddy field occur obviously to change continuously, notes rationally mixed with other weed killer herbicides.
Herbicide for paddy field is limit by crop safety at present, the herbicide spectrum is also limited, use separately a kind of weed killer herbicide single dose can not control completely effectively the generation of paddy field weed, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or dispenser is inhomogeneous all easily causes the residual hazard to this season crop or succession crop.
Summary of the invention
The mixed herbicide that the purpose of this invention is to provide a kind of cinosulfuron-containing, two careless ether and molinate.
Another object of the present invention is to provide the application of this weed killer herbicide.
The mixed herbicide of a kind of cinosulfuron-containing and molinate, it is characterized in that this weed killer herbicide take cinosulfuron, two careless ether and molinate and be main active ingredient, the mass ratio of cinosulfuron, two careless ether and molinate is 0.1～80: 0.1～80: 0.1～80, and preferably the mass ratio of cinosulfuron, two careless ether and molinate is 1～70: 1～60: 1～60.
In described mixed herbicide, cinosulfuron, two careless ether and molinate three's gross mass percentage composition is 1～85%, and preferably the gross mass percentage composition is 15～80%.
In mixed herbicide of the present invention, except the active ingredients such as cinosulfuron, two careless ether and molinate, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on pesticidal preparations and be mixed with any one formulation allowed on agricultural chemicals, preferably be processed into suspending agent, missible oil, water dispersion granule, wetting powder etc.
Mixed herbicide of the present invention can be applied in weeding before the paddy field bud or after early stage bud, particularly in preventing and kill off paddy field, apply and have remarkable result in various grassy weeds (as barnyard grass), sedge weed and broad leaved weed.
Herbicidal composition of the present invention has the following advantages:
1, activity of weeding is high.Herbicidal composition of the present invention can kill weeds by three kinds of different approaches, wherein three kinds of active ingredient pluses and minuses complementation, three kinds of composite reagents not only can reduce the consumption of single dose greatly, according to specific, be made into the mixture use than row, can produce synergistic function, greatly improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Cinosulfuron, two careless ether and molinate are all the broad spectrum weeding agent, after the three mixes, and action compensating, herbicidal spectrum is wider, and, because cinosulfuron is mainly effective to broad leaved weed and sedge weed, and can only spread pesticide-clay mixture or spraying; And molinate has special efficacy to the grassy weed barnyard grass, can also prevent and treat needle spikesedge herb and cyperus iria simultaneously; Two careless ether has very strong inhibitory action to grassy weeds such as barnyard grasses, and double most of broad leaved weeds, some sedge weeds controlled.Cinosulfuron and two careless ether can spread pesticide-clay mixture or spraying, molinate soil treatment, cauline leaf process all can, so weed killer herbicide of the present invention has the double action in leaf surface treatment and feud, extended the lasting period of medicament.
3, delay Weed Resistance.Because weeds easily produce resistance to sulfonylurea herbicide, and in weed killer herbicide of the present invention, contain the molinate of carbamates and the two careless ether of pyrimidyl oxy benzoic acid ester class, make medicament can effectively prevent the weeds except anti-sulfonylurea, in addition, reduce the pesticide resistance of weeds, extended the service life of medicament.
4, safe.Herbicidal composition of the present invention, be applied to agent for removing grass in paddy field, and it can prevent and kill off various grass family, sedge family and broad leaved weed in paddy field, under the prerequisite that has improved drug effect, paddy rice and succession crop all had to safety.
Embodiment
Embodiment 1
Cinosulfuron 1%, two careless ether 1%, molinate 13%, alkylphenol polyoxyethylene 4%, neopelex 5%, xanthans 2%, ethylene glycol 5%, water to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 15% suspending agent.
Embodiment 2
Cinosulfuron 22%, two careless ether 2%, molinate 1%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, ammonium sulfate 10%, sodium lignin sulfonate to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 25% water dispersible granules.
Embodiment 3
Cinosulfuron 4%, two careless ether 1%, molinate 60%, alkylphenol polyoxyethylene 9%, calcium dodecyl benzene sulfonate 10%, dimethylbenzene to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 65% missible oil.
Embodiment 4
Cinosulfuron 70%, two careless ether 7%, molinate 3%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 5%, kaolin supplies 100%, and according to conventional formulation method, being mixed with the quality percentage composition is 80% wetting powder.
Embodiment 5
Cinosulfuron 3%, two careless ether 10%, molinate 47%, alkylphenol polyoxyethylene 7%, calcium dodecyl benzene sulfonate 6%, dimethylbenzene to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 60% missible oil.
Embodiment 6
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure it to paddy field common weed cyperus iria co-toxicity coefficient.
Test method: the seed of quantitative cyperus iria is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, cultivate in illumination box, during the phase, do on composition spray in crawler type the processing of spraying until cyperus iria 3～6 leaves.After processing, continue in greenhouse to cultivate, each processes the preventive effect to weeds routine observation, and each weeds fresh weight after processing of weighing after 30d is pressed the method for the nineteen sixty propositions such as Sun Yunpei, 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 three kinds of active principles are composite all is greater than 100, illustrates that the present invention has obvious synergistic effect.
2), field control effectiveness test
Reagent agent:
Ternary built weed killer herbicide in embodiment 1～4 4.
The contrast medicament:
20% cinosulfuron water dispersible granules (commercially available), 20% pair of careless ether wetting powder (commercially available), 90% molinate missible oil (commercially available).
For studying thing: paddy rice
Rice seedlings was 3～5 leaf phases, grew fine, and robust plant, without other damage by disease and insect.
Prevent and kill off object:
The paddy field advantage weeds such as rhizoma alismatis, cyperus iria, apple, pondweed, arrowhead, lady's-grass, green foxtail, barnyard grass, Ya Zhi grass.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and, after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head of sprinkler selection weed killer herbicide special use.During spraying, note liquid is evenly sprayed application in experimental plot the phenomenon of accomplishing there is no drain spray, spraying more.
After test respectively after medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments, the results are shown in Table 2 and table 3.In addition, also to after medicine, observe the condition of production of crop in 1～15d, to investigate medicament, whether crop be had to poisoning, the results are shown in Table 4.
Table 2 field control effectiveness test result (20d after medicine)
Table 3 field control effectiveness test result (40d after medicine)
Consumption in table 2 and table 3 all refers to the consumption of active ingredient in each preparation.From table 2 and table 3, finding out, the present invention has significant preventive effect to grassy weed, broad leaved weed and sedge weed, and synergy is remarkable, and the lasting period is long.
The security survey result of table 4 medicament to crop
Each is processed, and in community, the rice is doing well, has no any medicine spot, illustrates that various medicaments are to the equal safety of paddy rice.
Claims (12)
1. the mixed herbicide of a cinosulfuron-containing, two careless ether and molinate, it is characterized in that described mixed herbicide take cinosulfuron, two careless ether and molinate and be active ingredient, and prepare by the following method: cinosulfuron 1%, two careless ether 1%, molinate 13%, alkylphenol polyoxyethylene 4%, neopelex 5%, xanthans 2%, ethylene glycol 5%, water to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 15% suspending agent.
2. the mixed herbicide of a cinosulfuron-containing, two careless ether and molinate, it is characterized in that described mixed herbicide take cinosulfuron, two careless ether and molinate and be active ingredient, and prepare by the following method: cinosulfuron 22%, two careless ether 2%, molinate 1%, NNO 9%, alkylphenol polyoxyethylene 5%, ammonium sulfate 10%, sodium lignin sulfonate to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 25% water dispersible granules.
3. the mixed herbicide of a cinosulfuron-containing, two careless ether and molinate, it is characterized in that described mixed herbicide take cinosulfuron, two careless ether and molinate and be active ingredient, and prepare by the following method: cinosulfuron 4%, two careless ether 1%, molinate 60%, alkylphenol polyoxyethylene 9%, calcium dodecyl benzene sulfonate 10%, dimethylbenzene to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 65% missible oil.
4. the mixed herbicide of a cinosulfuron-containing, two careless ether and molinate, it is characterized in that described mixed herbicide take cinosulfuron, two careless ether and molinate and be active ingredient, and prepare by the following method: cinosulfuron 70%, two careless ether 7%, molinate 3%, NNO 6%, sodium lignin sulfonate 4%, white carbon 5%, kaolin supplies 100%, and according to conventional formulation method, being mixed with the quality percentage composition is 80% wetting powder.
5. mixed herbicide claimed in claim 1 application in weeding before the paddy field bud or after early stage bud.
6. mixed herbicide claimed in claim 2 application in weeding before the paddy field bud or after early stage bud.
7. mixed herbicide claimed in claim 3 application in weeding before the paddy field bud or after early stage bud.
8. mixed herbicide claimed in claim 4 application in weeding before the paddy field bud or after early stage bud.
9. mixed herbicide claimed in claim 1 application in various grassy weeds, sedge weed or broad leaved weed in preventing and kill off paddy field.
10. mixed herbicide claimed in claim 2 application in various grassy weeds, sedge weed or broad leaved weed in preventing and kill off paddy field.
11. mixed herbicide claimed in claim 3 is the application in various grassy weeds, sedge weed or broad leaved weed in preventing and kill off paddy field.
12. mixed herbicide claimed in claim 4 is the application in various grassy weeds, sedge weed or broad leaved weed in preventing and kill off paddy field.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105528082A CN102461548B (en) | 2010-11-19 | 2010-11-19 | Mixed herbicide containing cinosulfuron, bispyribac-sodium and molinate and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105528082A CN102461548B (en) | 2010-11-19 | 2010-11-19 | Mixed herbicide containing cinosulfuron, bispyribac-sodium and molinate and application thereof |
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| CN102461548A CN102461548A (en) | 2012-05-23 |
| CN102461548B true CN102461548B (en) | 2013-11-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3198786A (en) * | 1961-05-01 | 1965-08-03 | Stauffer Chemical Co | Alkyl hexamethylene-thiolcarbamates |
| US4840663A (en) * | 1986-10-22 | 1989-06-20 | Ciba-Geigy Corporation | Synergistic composition and method for selective weed control in rice |
| CN1024664C (en) * | 1987-12-22 | 1994-05-25 | 古米埃化学工业株式会社 | Pyrimidine derivatives, processes for their production, and herbicidal method and compositions |
| DE19834627A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
-
2010
- 2010-11-19 CN CN2010105528082A patent/CN102461548B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3198786A (en) * | 1961-05-01 | 1965-08-03 | Stauffer Chemical Co | Alkyl hexamethylene-thiolcarbamates |
| US4840663A (en) * | 1986-10-22 | 1989-06-20 | Ciba-Geigy Corporation | Synergistic composition and method for selective weed control in rice |
| CN1024664C (en) * | 1987-12-22 | 1994-05-25 | 古米埃化学工业株式会社 | Pyrimidine derivatives, processes for their production, and herbicidal method and compositions |
| DE19834627A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
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| CN102461548A (en) | 2012-05-23 |
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Inventor after: Wang Guoping Inventor after: Wang Hongming Inventor after: Xing Huazhong Inventor after: Guo Chongyou Inventor after: Xia Xiaoyun Inventor after: Li Bin Inventor before: Wang Hongming Inventor before: Xing Huazhong Inventor before: Guo Chongyou Inventor before: Xia Xiaoyun Inventor before: Li Bin |
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Free format text: CORRECT: INVENTOR; FROM: WANG HONGMING XING HUAZHONG GUO CHONGYOU XIA XIAOYUN LI YUN TO: WANG GUOPING WANG HONGMING XING HUAZHONG GUO CHONGYOU XIA XIAOYUN LI YUN |
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