CN102461535B - Hybrid herbicide containing Cinosulfuron, bentazone and cyhalofop-butyl and application thereof - Google Patents
Hybrid herbicide containing Cinosulfuron, bentazone and cyhalofop-butyl and application thereof Download PDFInfo
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- CN102461535B CN102461535B CN2010105520165A CN201010552016A CN102461535B CN 102461535 B CN102461535 B CN 102461535B CN 2010105520165 A CN2010105520165 A CN 2010105520165A CN 201010552016 A CN201010552016 A CN 201010552016A CN 102461535 B CN102461535 B CN 102461535B
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Abstract
The invention belongs to the technical field of pesticide, relating to a herbicide, in particular to a hybrid herbicide containing Cinosulfuron, bentazone andcyhalofop-butyl and application of the hybrid herbicide. The hybrid herbicide takes the Cinosulfuron, the bentazone and the cyhalofop-butyl as main effective ingredients with the mass ratio of (0.1-80): (0.1-80): (0.1-80). The hybrid herbicide disclosed by the invention has obvious effect when being applied to the paddy field weeding, in particular to preventing and removing of various grass family weeds, cyperaceae weed family weeds and broad leaf family weeds in the paddy field. On the premise of improving pesticide effect, the hybrid herbicide can delay weed resistance, has the advantages of wide weeding spectrum and long effect lasting period if being compared with a single agent and is safe to the paddy and next batch of crop.
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, bentazone and cyhalofop-butyl.
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.
Bentazone (bentazone), commodity are called Bentazon, are the benzothiadiazine ketone weed killer herbicides by BASF Corp's exploitation, chemical name: 3-isopropyl-(1H)-benzo-2,1,3-thiadiazine-4-ketone-2, the 2-dioxide, its structural formula is as follows:
Bentazone is optionally herbicide after seedling of contact killing type tool, for cauline leaf processing in seedling stage, contacts and works by blade.Dry land is used, and first by blade face, permeates and is transmitted to inhibited photosynthesis in chloroplast.Paddy field is used and can permeate and can pass through root absorption by blade face, is transmitted to cauline leaf, strongly hinders weeds photosynthesis and water metabolism, causes nutrition hunger, and physiological function is lacked of proper care and lethal.Active ingredient is detoxified to active weak glycoconjugates metabolism in the tolerable crop body, to crop safety, after dispenser, 6-18 week bentazone can be decomposed by microorganism in soil.Bentazone, for preventing and kill off sedge family and broad leaved weed, is mainly prevented and kill off short arrowhead, convexutricle sedge herb, Monochoria korsakowii, difformed galingale herb, Herba Cyperi Glomerati, Monochoria vaginalis etc., invalid to grassy weed.
Cyhalofop-butyl (Cyhalofop-butyl), commodity are called a thousand pieces of gold, the phenoxy carboxylic acid herbicides of LG-DOW agricultural science company exploitation, chemical name: (R)-2-[4 (4-cyano group-2-fluorophenoxy) phenoxy group]-butyl propionate, its structural formula is as follows:
Cyhalofop-butyl is unique kind that paddy rice is had to tight security in aryloxyphenoxypropanoates class weed killer herbicide, the same with such other kinds, is also inner-adsorption conduction-type herbicide.Cyhalofop-butyl is absorbed by leaf sheath and the blade of plant corpus, the phloem conduction, accumulate the meristem zone in plant corpus, suppress acetyl-CoA carboxylase (ACCase), fatty acid is synthesized to be stopped, the growth division of cell can not normally be carried out, and film system etc. contains membrane structure to be destroyed, and finally causes plant death.From cyhalofop-butyl, be absorbed into the weeds Mortality Ratio slower, generally need 1-3 week.The symptom of weeds after dispenser is as follows: the tender shoots atrophy of four leaf phases, finally work hard lethal.The leaf rapidly of growing tri-leaf period stops growing after a couple of days, the how many appearance of limb edge are sallow, cause death.The Lao Ye of two leaf stage changes minimum, keeps green.Cyhalofop-butyl can be degraded to rapidly the diacid state to the acetyl-CoA carboxylase non-activity by paddy rice, thereby paddy rice is had to the safety of height.In soil and in typical paddy field water either, degraded is rapid because of it, therefore to succession crop safety.Be mainly used in preventing and kill off grassy weed.Cyhalofop-butyl is not only efficient to various barnyard grasses (comprising above the average age for marriage barnyard grass), also can prevent and kill off moleplant seed, lady's-grass, Paspalum distichum, green foxtail, eleusine indica, amur foxtail etc.Invalid to sedge family and broad leaved weed.
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, bentazone and cyhalofop-butyl.
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, bentazone and cyhalofop-butyl, it is characterized in that this weed killer herbicide take cinosulfuron, bentazone and cyhalofop-butyl and be main active ingredient, the mass ratio of cinosulfuron, bentazone and cyhalofop-butyl is 0.1～80: 0.1～80: 0.1～80, and preferably the mass ratio of cinosulfuron, bentazone and cyhalofop-butyl is 1～70: 1～60: 1～60.
In described mixed herbicide, cinosulfuron, bentazone and cyhalofop-butyl three's gross mass percentage composition is 1～85%, and the preferred mass percentage composition is 15～80%.
In the ternary built preparation of cinosulfuron of the present invention, bentazone and cyhalofop-butyl, except the active ingredients such as cinosulfuron, bentazone and cyhalofop-butyl, 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 missible oil, aqueous emulsion, water dispersible granules, wetting powder etc.
Mixed herbicide of the present invention can be applied in the paddy field postemergence weed control, particularly in preventing and kill off paddy field, apply and have remarkable result in various grass family, sedge family or 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, bentazone are mainly effective to broad leaved weed and sedge weed, and the cyhalofop-butyl ester is effective to grassy weed, and the three mixes rear action compensating, and herbicidal spectrum is wider, and because cinosulfuron can spread pesticide-clay mixture or spraying; And bentazone, cyhalofop-butyl can be made cauline leaf and process.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 cyhalofop-butyl of aryloxyphenoxypropanoates class and the bentazone of benzothiadiazine ketone, 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 or 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%, bentazone 5%, cyhalofop-butyl 9%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, xanthans 2%, water to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 15% aqueous emulsion.
Embodiment 2
Cinosulfuron 15%, bentazone 15%, cyhalofop-butyl 5%, NNO (sodium methylene bis-naphthalene sulfonate) 9%, alkylphenol polyoxyethylene 5%, ammonium sulfate 8%, kaolin to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 35% wetting powder.
Embodiment 3
Cinosulfuron 10%, bentazone 5%, cyhalofop-butyl 60%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and according to conventional formulation method, being mixed with the quality percentage composition is 75% water dispersible granules.
Embodiment 4
Cinosulfuron 70%, bentazone 1%, cyhalofop-butyl 9%, NNO (sodium methylene bis-naphthalene sulfonate) 7%, sodium lignin sulfonate 2%, white carbon 6%, kaolin supplies 100%, and according to conventional formulation method, being mixed with the quality percentage composition is 80% wetting powder.
Embodiment 5
Cinosulfuron 4%, bentazone 60%, cyhalofop-butyl 1%, neopelex 8%, sodium lignin sulfonate 7%, ammonium sulfate 8%, sodium lignin sulfonate to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 65% water dispersible granules.
Embodiment 6
Cinosulfuron 5%, bentazone 10%, cyhalofop-butyl 10%, calcium dodecyl benzene sulfonate 9%, alkylphenol polyoxyethylene 5%, dimethylbenzene to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 25% missible oil.
Embodiment 7
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure its co-toxicity coefficient to paddy field common weed difformed galingale herb.
Test method: the seed of quantitative difformed galingale herb 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 difformed galingale herb 2～3 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 active principle is 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), 48% bentazone aqua (commercially available), 10% cyhalofop-butyl 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, nutgrass flatsedge, apple, pondweed, arrowhead, lady's-grass, green foxtail, barnyard grass, moleplant seed, eleusine indica, 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, bentazone and cyhalofop-butyl, it is characterized in that this weed killer herbicide take cinosulfuron, bentazone and cyhalofop-butyl and be main active ingredient, prepare by the following method: cinosulfuron 1%, bentazone 5%, cyhalofop-butyl 9%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, xanthans 2%, water to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 15% aqueous emulsion.
2. the mixed herbicide of a cinosulfuron-containing, bentazone and cyhalofop-butyl, it is characterized in that this weed killer herbicide take cinosulfuron, bentazone and cyhalofop-butyl and be main active ingredient, prepare by the following method: cinosulfuron 15%, bentazone 15%, cyhalofop-butyl 5%, NNO 9%, alkylphenol polyoxyethylene 5%, ammonium sulfate 8%, kaolin to 100%, according to conventional formulation method, being mixed with the quality percentage composition is 35% wetting powder.
3. the mixed herbicide of a cinosulfuron-containing, bentazone and cyhalofop-butyl, it is characterized in that this weed killer herbicide take cinosulfuron, bentazone and cyhalofop-butyl and be main active ingredient, prepare by the following method: cinosulfuron 10%, bentazone 5%, cyhalofop-butyl 60%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and according to conventional formulation method, being mixed with the quality percentage composition is 75% water dispersible granules.
4. the mixed herbicide of a cinosulfuron-containing, bentazone and cyhalofop-butyl, it is characterized in that this weed killer herbicide take cinosulfuron, bentazone and cyhalofop-butyl and be main active ingredient, prepare by the following method: cinosulfuron 70%, bentazone 1%, cyhalofop-butyl 9%, NNO 7%, sodium lignin sulfonate 2%, white carbon 6%, kaolin supplies 100%, and according to conventional formulation method, being mixed with the quality percentage composition is 80% wetting powder.
5. the application of mixed herbicide claimed in claim 1 in the paddy field postemergence weed control.
6. the application of mixed herbicide claimed in claim 2 in the paddy field postemergence weed control.
7. the application of mixed herbicide claimed in claim 3 in the paddy field postemergence weed control.
8. the application of mixed herbicide claimed in claim 4 in the paddy field postemergence weed control.
9. mixed herbicide claimed in claim 1 application in various grass family, sedge family or broad leaved weed in preventing and kill off paddy field.
10. mixed herbicide claimed in claim 2 application in various grass family, sedge family or broad leaved weed in preventing and kill off paddy field.
11. mixed herbicide claimed in claim 3 is the application in various grass family, sedge family or broad leaved weed in preventing and kill off paddy field.
12. mixed herbicide claimed in claim 4 is the application in various grass family, sedge family or broad leaved weed in preventing and kill off paddy field.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105520165A CN102461535B (en) | 2010-11-19 | 2010-11-19 | Hybrid herbicide containing Cinosulfuron, bentazone and cyhalofop-butyl and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105520165A CN102461535B (en) | 2010-11-19 | 2010-11-19 | Hybrid herbicide containing Cinosulfuron, bentazone and cyhalofop-butyl and application thereof |
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| CN102461535A CN102461535A (en) | 2012-05-23 |
| CN102461535B true CN102461535B (en) | 2013-11-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715889A (en) * | 1982-09-07 | 1987-12-29 | Basf Aktiengesellschaft | Quinoline derivatives and their use for controlling undesirable plant growth |
| US4840663A (en) * | 1986-10-22 | 1989-06-20 | Ciba-Geigy Corporation | Synergistic composition and method for selective weed control in rice |
| CN101595881A (en) * | 2009-07-10 | 2009-12-09 | 赵邦斌 | The bentazone cyhalofop-butyl missible oil |
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2010
- 2010-11-19 CN CN2010105520165A patent/CN102461535B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715889A (en) * | 1982-09-07 | 1987-12-29 | Basf Aktiengesellschaft | Quinoline derivatives and their use for controlling undesirable plant growth |
| US4840663A (en) * | 1986-10-22 | 1989-06-20 | Ciba-Geigy Corporation | Synergistic composition and method for selective weed control in rice |
| CN101595881A (en) * | 2009-07-10 | 2009-12-09 | 赵邦斌 | The bentazone cyhalofop-butyl missible oil |
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| CN102461535A (en) | 2012-05-23 |
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Inventor after: Wang Guoping Inventor after: Yang Shouhai Inventor after: Qi Wu Inventor after: Liu Kuitao Inventor after: Ge Jiugan Inventor after: Lan Ronghong Inventor before: Yang Shouhai Inventor before: Qi Wu Inventor before: Liu Kuitao Inventor before: Ge Jiugan Inventor before: Lan Ronghong |
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