CN101326917A - Herbicidal composition and use thereof - Google Patents
Herbicidal composition and use thereof Download PDFInfo
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- CN101326917A CN101326917A CNA2007101785771A CN200710178577A CN101326917A CN 101326917 A CN101326917 A CN 101326917A CN A2007101785771 A CNA2007101785771 A CN A2007101785771A CN 200710178577 A CN200710178577 A CN 200710178577A CN 101326917 A CN101326917 A CN 101326917A
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Abstract
The invention provides a herbicide combination, containing Trifloxysulfuron, Pyrithiobac-sodium, APP and/or Cyclohexenone, and the ratio of parts by weights of Trifloxysulfuron: Pyrithiobac-sodium:APP and/or Cyclohexenone is 0.1:1:20-20:1:0.1. The combination can be used to prepare emulsifiable solution, liquor, thick emulsion, microemulsion, wettable powder, water suspending agent, oil suspending agent, water-dispersible granules or soluble powder (granules). The herbicide combination can be used to prevent and control Gramineae and broad-leaved weeds which have grown for one year or more than one year in the cotton field.
Description
Technical field
The present invention relates to the agricultural herbicide field, relate more specifically to a kind of herbicidal composition and application thereof that contains trifloxysulfuron, pyrithiobac-sodium, fragrant phenoxy propionic ester and/or cyclohexenone analog.
Background technology
Trifloxysulfuron belongs to sulfonylurea herbicide, it is acetolactate synthestase (ASL) inhibitor, can be rapidly by leaf and root absorption, and in plant corpus, conduct, transfer to meristematic tissue, in the sensitive crop body, can suppress the biosynthesis of valine, leucine and isoleucine and stop cell division, sensitive crop is stopped growing, dead in 1～3 week after being subjected to medicine, develop broad leaved weed and the grassy weed that is mainly used to prevent and treat in the cotton field by Switzerland Novartis Co.,Ltd.Pyrithiobac-sodium be a kind of in the absorption post-emergence herbicide, prevent and kill off annual gramineous weed and most of broad leaved weed effectively, to present difficult anti-weeds as lead a cow, Siberian cocklebur, piemarker, thorn chrysanthemum etc. have good preventive effect.These two kinds of weed killer herbicides are strong to the preventive effect of broad leaved weed, but poor slightly to the grassy weed effect.
Lipid is the important composition composition of plant cell membrane.Virtue phenoxy propionic acid class, cyclohexenone analog weed killer herbicide can suppress the elongation of the synthetic and chain of fatty acid, and their target enzyme all is acetyl-CoA carboxylases.Often be called acetyl-CoA carboxylase inhibitor.
Virtue phenoxy propionic acid ester weed killer herbicide all is treated to the master with cauline leaf, shows very strong cauline leaf absorbing activity; Be used for the broad leaf crop field, the minority kind can be used for paddy rice and jowar field more; Be used for preventing and kill off annual and perennial grassy weed; All has transporting; Have isomer (R body, S body), the R body is an active body; To the mammal low toxicity; Most kind environment degradables are very fast.
Cyclohexenone analog is used to prevent and kill off grassy weed to dicotyledonous crops safety; Use age amplitude broad, it is all effective to the spray medicine of tillering to emerge from weeds; In soil, easily decompose, so succession crop is not had influence; Belong to transporting type cauline leaf inorganic agent; It is low toxicity herbicide.
Therefore, fragrant phenoxy propionic ester and cyclohexenone analog weed killer herbicide are good to the preventive effect of grassy weed, but poor slightly to the broad leaved weed effect.
Summary of the invention
The object of the present invention is to provide a kind of herbicidal composition that contains trifloxysulfuron, pyrithiobac-sodium, fragrant phenoxy propionic acid ester and/or cyclohexenone analog, said composition can enlarge the grass that kills of trifloxysulfuron and pyrithiobac-sodium composes, and improves trifloxysulfuron and the pyrithiobac-sodium preventive effect to the cotton field weed.
The inventor is through research, find the use that is mixed of trifloxysulfuron, pyrithiobac-sodium and fragrant phenoxy propionic acid ester and/or cyclohexenone analog weed killer herbicide, have very obvious synergistic effect, have significance to improve, and can enlarge and kill careless composing the control efficiency of crop weeds.
The invention provides a kind of novel herbicidal composition, in said composition, mainly contain trifloxysulfuron, pyrithiobac-sodium and fragrant phenoxy propionic acid ester and/or cyclohexenone analog herbicidal active compounds.Because they have different structure types and mechanism of action, the three is composite can to improve to a greater degree to cotton field malignant weed preventive effect, enlarges to kill the grass spectrum.
Herbicidal composition of the present invention, contain trifloxysulfuron, pyrithiobac-sodium, fragrant phenoxy propionic ester and/or cyclohexenone analog, trifloxysulfuron: pyrithiobac-sodium: the ratio of weight and number of fragrant phenoxy propionic ester and/or cyclohexenone analog is 0.1: 1: 20-20: 1: 0.1.
Its weight part ratio preferably 0.2: 1: 10-10: 1: 0.2.
Weight portion of the present invention is this area unit of weight commonly used, such as gram, two, kilogram, ton etc.
Described trifloxysulfuron is 1-(4; 6-dimethoxypyridin-2-yl)-3-[3-(2,2, the 2-trifluoro ethoxy)-2-pyridine sulfonyl)] urea; or its organic salt such as ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, or its mineral salt such as sylvite, sodium salt, ammonium salt.
Described pyrithiobac-sodium is 2-chloro-6-(4,6-dimethoxypyridin-2-base sulfenyl) benzoic acid, or its organic salt such as ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, or its mineral salt such as sylvite, sodium salt, ammonium salt, or its ester class such as methyl esters, butyl ester, monooctyl ester, different monooctyl ester.
Described fragrant phenoxy propionic acid ester is: (RS)-and 2-[2-[4-(3,5-two chloro-2-pyridine radicals oxygen) phenoxy group] propionyl]-1,2-oxazolidine (disliking careless ether), (R)-and 2-[4-(6-chloro-2-quinoxaline base oxo) phenoxy group] ethyl propionate (Quizalotop-ethyl), (RS)-2-[4-(2, the 4-dichlorophenoxy) phenoxy group] methyl propionate (diclofop-methyl), (R)-2-[7-(2-chloro-a, a, a-three fluoro-are right-toloxyl)-naphthalene-2-base oxygen] methyl propionate (fluoronaphthalene grass ester), (RS)-and 2-[4-(5-trifluoromethyl-2-pyridine oxygen base) phenoxy group] butyl propionate (fluazifop), (R)-and 2-{4-[(5-5-flumethiazine-2-yl) the oxygen base] phenoxy group } butyl propionate (efficient fluazifop), (RS)-and 2-[4-(three chloro-5-trifluoromethyls-2-pyridine oxygen base) phenoxy group] methyl propionate (pyrrole fluorine chlorine standing grain spirit, also claim haloxyfop-r-methyl), (R)-and 2-[4-(three chloro-5-trifluoromethyls-2-pyridine oxygen base) phenoxy group] methyl propionate (haloxyfop-P-methyl), 2-propynyl-(R)-2-[4-(5-chloro-3-fluoro-2-pyridine oxygen base) phenoxy group] propionic ester (alkynes grass ester), 2-[4-(6-chloro-2-[4-morpholinodithio oxygen base) phenoxy group] ethyl propionate (diclofop-methyl thiazole), (±)-2-[4-(6-1,3-benzothiazole-2-base oxygen) phenoxy group] propionic acid (diclofop-methyl thiazole), 2-propynyl-2-[4-((3,5-two chloro-2-pyridine radicals) phenoxy group oxygen base)] propionic ester (chloroazifoppropynyl), (R)-and 2-[4-(6-chloro-2-benzoxazoles oxygen base) phenoxy group] ethyl propionate (fenoxapropPethyl), (R)-and 2-isopropylidene amino-oxygen ethyl (R)-2-[4-(6-chloro-quinoxaline-2-base oxygen) phenoxy group] propionic ester (propaquizafop), (±)-tetrahydrochysene glycosyl (R)-2-[4-(6-chloro-quinoxaline-2-base oxygen) phenoxy group] propionic ester (sugared careless ester), hydroxyl penta standing grain spirit; Described cyclohexenone analog is: the rare propoxyl group imino group of (±)-2-[(E)-1-[(E)-3-chlorine] propyl group]-5-[2-(ethylmercapto group) propyl group]-3-hydroxyl hexamethylene-2-ketenes (clethodim), (RS-2-[1-(ethoxy imino) butyl]-3-hydroxyl-5-thiophene alkane-3-basic ring oneself-5-ketenes (cycloxydim), (±)-(EZ)-2-[1-(ethoxy imino) butyl]-5-[2-(ethylmercapto group) propyl group]-3-hydroxyl hexamethylene-2-ketenes (sethoxydim), (EZ)-(RS)-2-{1-[(2E)-and 3-chloroallyloxyamino imino group] propyl group }-3-hydroxyl-5-tetrahydropyran-4-base hexamethylene-2-alkene-1-ketone (tepraloxydim), 2-[1-(ethoxy imino) propyl group]-3-hydroxyl-5-(2,4, the 6-trimethylphenyl) hexamethylene-2-ketenes (methoxyphenone), 2-{1-[2-(4-chlorophenoxy) propoxyl group imino group] butyl }-3-hydroxyl-5-(thiophene alkane-3-yl) hexamethylene-2-ketenes (clefoxidim), (RS)-2-[1-(3-chloroallyloxy) iminobutyl]-5-(2-ethylthiopropyl)-3-hydroxycyclohex-2-enone (cloproxydim), butroxydim and CGA 215684 (production of Switzerland Novartis Co.,Ltd).
The structural formula of part component composition is as shown in hereinafter, wherein trifloxysulfuron chemical name: 1-(4,6-dimethoxypyridin-2-yl)-3-[3-(2,2, the 2-trifluoro ethoxy)-2-pyridine sulfonyl] urea,
Structural formula:
Molecular formula C
14H
14F
3N
5O
6S
Relative molecular weight 437.35
The pyrithiobac-sodium chemical name: 2-chloro-6-(4,6-dimethoxypyridin-2-base sulfenyl) benzoic acid sodium salt,
Structural formula:
Molecular formula C
13H
10ClN
2NaO
4S
Relative molecular weight 348.7
Virtue phenoxy propionic acid ester weed killer herbicide is:
Hydroxyl penta standing grain spirit
Molecular formula: C
18H
18F
3NO
5
Molecular weight: 385.33
Fluoronaphthalene grass ester
Molecular formula: C
21H
16ClF
3O
4
Molecular weight: 424.80
The spirit of pyrrole fluorine chlorine standing grain
Molecular formula: C
18H
17ClF
3NO
3
Molecular weight: 387.78
FenoxapropPethyl
Molecular formula: C
18H
16ClNO
5
Molecular weight: 361.78
Alkynes grass ester
Molecular formula: C
17H
13ClFNO
4
Molecular weight 349.74
Chloroazifoppropynyl
Molecular formula: C
17H
13Cl
2NO
4
Molecular weight 366.20
Dislike careless ether
Molecular formula: C
17H
16Cl
2N
2O
4
Molecular weight 383.23
Fluazifop
Molecular formula: C
19H
20F
3NO
4
Molecular weight: 383.36
Diclofop-methyl
Molecular formula: C
16H
14Cl
2O
4
Molecular weight: 341.19
The careless ester of sugar
Molecular formula: C
22H
21ClN
2O
5
Molecular weight: 428.87
Propaquizafop
Molecular formula: C
22H
22ClN
3O
5
Molecular weight: 443.88
Quizalotop-ethyl
Molecular formula C
19H
17ClN
2O
4
Molecular weight 372.80
Diclofop-methyl thiazole
Molecular formula: C
18H
16ClNO
4S
Molecular weight: 377.84
Cyclohexenone analog:
Butroxydim
Molecular formula: C
24H
33NO
4
Relative molecular weight: 399.5
Clethodim
Molecular formula: C
17H
26ClNO
3S
Relative molecular mass: 359.9
Cycloxydim
Molecular formula: C
17H
27NO
3S
Relative molecular weight: 325.5
Sethoxydim
Molecular formula: C
17H
29NO
3S
Relative molecular mass: 327.5
Tepraloxydim
Molecular formula: C
17H
24ClNO
4
Relative molecular mass: 341.8
Methoxyphenone
Molecular formula: C
20H
27NO
3
Relative molecular mass: 329.4
Clefoxidim
Molecular formula: C
24H
32ClNO
3S
Relative molecular mass: 466.03
CLOPROXYDIM
Molecular formula: C
18H
28ClNO
3S
Relative molecular mass: 373.93
Molecular formula: C
16H
22ClNO
3S
Relative molecular mass: 343.9
Active component is 0.5～95.0% of a gross weight in the herbicidal composition of the present invention.The amount of active component depends on the amount of application when every kind of component is used separately in the herbicidal composition of the present invention, also depends on a kind of component and the ratio of other two kinds of components and the degree of synergistic effect.
Herbicidal composition of the present invention contains two kinds of carriers at least, can be solid or liquid, and the carrier that is generally used for preparing herbicidal composition all can use.At least a carrier is a surfactant in the composition of the present invention, can be emulsifier, dispersant or wetting agent.For example, lauryl sodium sulfate, Teepol, neopelex, polyoxyethylene fatty acid ester, polyoxyethylene aliphatic alcohol ether, polyoxyethylene fatty amine, ethoxy castor oil, fatty acid polyethylene glycol ester, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether etc. or other this areas surfactant commonly used.
The present composition can be mixed with missible oil, liquor, aqua, emulsifiable concentrate, microemulsion, wetting powder, aqueous suspension agent, oil-suspending agent, water dispersion granule or soluble powder/granula etc., and these preparations can be prepared by this area method in common.
Herbicidal combinations of the present invention can the finished product preparation form provide, and promptly each material mixes in the composition; Also dosage form provides separately, mixes voluntarily in bucket or jar before using.Concentrate according to composition of the present invention mixes the concentration that obtains required active substance usually with water.
Composition of the present invention can be used for preventing and treating annual and perennial various grass family in cotton field and broad leaved weed etc.The place of using of herbicidal composition of the present invention is paddy field, nonirrigated farmland etc.
Composition of the present invention can with other compound with weeding, desinsection or bactericidal property particularly the weed killer herbicide handled of cauline leaf mix use, also can mix use with nematocide, protective agent, growth regulator, nutrient for plants or soil conditioner.
The present invention also provides a kind of method of weeding, before weed germination or after sprouting, uses composition of the present invention to the place of crop and plant growth.Can use by common method, as mix soil, spraying, injection, cast etc.The amount of application of weed killer herbicide of the present invention changes with weather condition or crop state.Herbicidal effect is relevant with the content of individualized compound in the composition usually, and also for example weather is relevant with extraneous factor, but by using suitable formulation can slow down climatic influences.
Herbicidal combinations of the present invention has the following advantages: the one, and composition shows fabulous synergistic effect in certain ratio range, mixed composition has obviously improved herbicidal effect than its single agent, thereby reduced using dosage, when reducing peasant's drug cost, reduced degree to environmental influence.The 2nd, enlarged and killed the grass spectrum, a kind of medicament can be prevented and treated multiple weeds simultaneously, and a kind of means of prevention extremely easily and effectively is provided, and the grass family and the broad leaved weed in cotton field all had good control efficiency.The 3rd, said composition is systemic herbicide and the combination of tagging property mixture of herbicides, and the different action characteristics of medicament obtain extremely strong mutual supplement with each other's advantages, can effectively delay the generation and the development of single agent resistance.
Embodiment
The present invention is elaborated with following specific embodiment, so that the present invention is more readily understood, but the present invention is limited to these examples absolutely not.Percentage all is weight percentage in the proportioning of all preparations; The treatment dosage of biologically-active moiety is the dosage of active ingredient.
1, the preparation of wetting powder
By the prescription requirement, former medicine, various auxiliary agent and filler etc. are fully mixed, after ultrafine crusher is pulverized, promptly obtain converted products.As embodiment 1～5 prescription.
Embodiment 1 (52.75% wetting powder)
Trifloxysulfuron 0.25%, pyrithiobac-sodium 2.5%, 50% pyrrole fluorine chlorine standing grain spirit, neopelex 2.0%, white carbon black 5%, sodium lignin sulfonate 10%, diatomite complements to 100%.(0.5∶5∶100)
Embodiment 2 (52.75% wetting powder)
Trifloxysulfuron sylvite 50%, pyrithiobac-sodium 2.5%, fenoxapropPethyl 0.25%, lauryl sodium sulfate 1.5%, white carbon black 10%, sodium lignin sulfonate 10%, kaolin complements to 100%.(100∶5∶0.5)
Embodiment 3 (0.5% wetting powder)
Trifloxysulfuron 0.05%, pyrithiobac-sodium 0.1%, Quizalotop-ethyl 0.35%, alkyl amide taurate 2%, Fluhyzon formaldehyde condensation 5%, neopelex 5%, attapulgite complements to 100%.
Embodiment 4 (95% wetting powder)
Trifloxysulfuron 10%, pyrithiobac-sodium 15%, chloroazifoppropynyl 70%, lauryl sodium sulfate 2%, precipitated calcium carbonate complements to 100%.
Embodiment 5 (28% wetting powder)
Trifloxysulfuron ethanolamine salt 0.5%, pyrithiobac-sodium 2.5%, methoxyphenone 25%, alkyl amide taurate 5%, sodium methylene bis-naphthalene sulfonate 5%, alkylphenol-polyethenoxy phosphate 5%, precipitated calcium carbonate complements to 100%.
2, the preparation of aqueous emulsion
Former medicine, solvent, emulsifier added with co-emulsifier be in the same place, make and be dissolved into even oil phase.With mixing such as water, antifreezes, become the homogeneous water.Under high-speed stirred, water is joined oil phase or oil phase is joined water, form the aqueous emulsion of favorable dispersibility.As embodiment 6～10 prescriptions.
Embodiment 6 (53% aqueous emulsion)
Trifloxysulfuron 0.5%, pyrithiobac-sodium methyl esters 2.5%, sugared careless ester 50%, N-Methyl pyrrolidone 5%, polyvinyl alcohol 0.8%, sorbitan fatty acid ester polyoxyethylene groups ether 5%, alkyl-diethylene glycol ether-sodium sulfonate 2.5%, farming breast 22012%, ethylene glycol 5%, water complements to 100%.
Embodiment 7 (53% aqueous emulsion)
Trifloxysulfuron 50%, pyrithiobac-sodium triethylamine salt 2.5%, sethoxydim 0.5%, solvent naphtha 15%, polyethylene glycol 5%, alkylaryl polyoxyethylene poly-oxygen propylene aether 3.5%, farming breast 22015%, dimethyl formamide 12%, ethylene glycol 5%, water complements to 100%.
Embodiment 8 (28% aqueous emulsion)
Trifloxysulfuron 0.5%, pyrithiobac-sodium 2.5%, Quizalotop-ethyl 25%, tributyl phosphate 10%, xanthans 1.2%, alkyl-diethylene glycol ether-sodium sulfonate 3.5%, farming breast 02038%, polyoxyethylene nonylphenol ether 5%, water complements to 100%.
Embodiment 9 (0.5% aqueous emulsion)
Trifloxysulfuron 0.05%, pyrithiobac-sodium 0.1%, haloxyfop-r-methyl 0.35%, PMA 3%, sorbitan fatty acid ester polyoxyethylene groups ether 10%, alkyl-diethylene glycol ether-sodium sulfonate 3.5%, farming breast 22012%, dimethyl formamide 20%, ethylene glycol 5%, water complements to 100%.
Embodiment 10 (50% aqueous emulsion)
Trifloxysulfuron ammonium salt 1%, pyrithiobac-sodium 5%, propaquizafop 12%, sethoxydim 32%, PMA 5%, sorbitan fatty acid ester 3%, alkylphenol-polyethenoxy base ether 5%,, farming breast 22012%, dimethyl formamide 12%, urea element 5%, water complements to 100%.
3, the preparation of water-dispersible granules
Former medicine and powder carrier, wetting spreader-sticker and binding agent etc. are mixed pulverizing, and spray-dried or fluidized drying adds in the comminutor that the certain specification screen cloth is housed and carries out granulation after obtaining water-dispersible granules or add water again mediating.And then drying, screening (pressing the screen cloth scope) promptly get granular product.As embodiment 11～14 prescriptions.
Embodiment 11 (53% water-dispersible granules)
Trifloxysulfuron 0.5%, pyrithiobac-sodium 2.5%, Quizalotop-ethyl 50%, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products 12%, citric acid 5%, soluble starch 15%, gypsum complements to 100%.
Embodiment 12 (53% water-dispersible granules)
Trifloxysulfuron 50%, pyrithiobac-sodium sodium salt 2.5%, fenoxapropPethyl 0.5%, sodium lignin sulfonate 12%, epoxidized polyether 5%, sodium sulphate 15%, gypsum complements to 100%.
Embodiment 13 (28% water-dispersible granules)
Trifloxysulfuron 0.5%, pyrithiobac-sodium 2.5%, haloxyfop-r-methyl 20%, calcium lignosulfonate 15%, epoxidized polyether 5%, soluble starch 15%, polyvinylpyrrolidone 5%, attapulgite complements to 100%.
Embodiment 14 (95% water-dispersible granules)
Trifloxysulfuron 5%, pyrithiobac-sodium 25%, tepraloxydim 65%, neopelex 2%, attapulgite complements to 100%.
4, the preparation of suspending agent
By the prescription requirement, be medium with water, former medicine, dispersant, suspending agent and antifreezing agent etc. are added in the sand milling still, carry out porphyrize, make suspending agent.As embodiment 15～17 prescriptions.
Embodiment 15 (0.5% suspending agent)
Trifloxysulfuron 0.05%, pyrithiobac-sodium dimethylamine salt 0.15%, clethodim 0.2%, sethoxydim 0.1%, calcium lignosulfonate 5%, white carbon black 0.3%, ethylene glycol 4%, silicone a little, water complements to 100%.
Embodiment 16 (35% suspending agent)
Trifloxysulfuron 5% and pyrithiobac-sodium 10%, fluazifop 20%, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products 5%, white carbon black 1%, sorbitan fatty acid ester polyoxyethylene groups ether 5%, ethylene glycol 4%, tributyl phosphate a little, water complements to 100%.(1∶2∶4)
Embodiment 17 (45% suspending agent)
Trifloxysulfuron 10%, pyrithiobac-sodium 10%, Quizalotop-ethyl 15%, haloxyfop-r-methyl 10%, sodium lignin sulfonate 5%, white carbon black 0.3%, farming breast 22015%, glycerine 8%, silicone a little, water complements to 100%.(1∶1∶2.5)
5, the preparation of oil-suspending agent
By the prescription requirement, be medium with oil, former medicine, dispersant, suspending agent and antifreezing agent etc. are added in the sand milling still, carry out porphyrize, make suspending agent.As embodiment 18～23 prescriptions.
Embodiment 18 (8% oil-suspending agent)
Trifloxysulfuron 0.5%, pyrithiobac-sodium 2.5%, Quizalotop-ethyl 3%, clethodim 2%, fatty alcohol-polyoxyethylene ether 10%, polyoxyethylene nonylphenol ether (7) 5%, plant oil subsidy to 100%.
Embodiment 19 (8% oil-suspending agent)
Trifloxysulfuron 5%, pyrithiobac-sodium 2.5%, propaquizafop 0.5%, fatty alcohol-polyoxyethylene ether 10%, polyoxyethylene nonylphenol ether (7) 5%, plant oil subsidy to 100%.
Embodiment 18 (7.5% oil-suspending agent)
Trifloxysulfuron 0.5%, pyrithiobac-sodium 2%, Quizalotop-ethyl 2%, clethodim 3%, fatty alcohol-polyoxyethylene ether 10%, polyoxyethylene nonylphenol ether (7) 5%, plant oil subsidy to 100%.(1∶4∶10)
Embodiment 19 (5% oil-suspending agent)
Trifloxysulfuron triisopropanolamine salt 2%, pyrithiobac-sodium 0.8%, propaquizafop 2.2%, fatty alcohol-polyoxyethylene ether 10%, polyoxyethylene nonylphenol ether (7) 5%, plant oil subsidy to 100%.(10∶4∶11)
Embodiment 20 (8% oil-suspending agent)
Trifloxysulfuron 1%, pyrithiobac-sodium 3%, haloxyfop-r-methyl 4%, aliphatic acid polyethenoxy ether 10%, castor oil polyoxyethylene ether (20) 5%, alkylphenol polyoxyethylene 5%, plant oil subsidy to 100%.(1∶3∶4)
Embodiment 21 (15% oil-suspending agent)
Trifloxysulfuron 2%, pyrithiobac-sodium 5.5%, clethodim 7.5%, fatty alcohol-polyoxyethylene ether 10%, polyoxyethylene nonylphenol ether (7) 5%, machine oil is mended to 100%.(4∶11∶15)
Embodiment 22 (20% oil-suspending agent)
Trifloxysulfuron ammonium salt 5%, pyrithiobac-sodium butyl ester 2.5%, diclofop-methyl thiazole 12.5%, three-methyl-benzyl phenol polyethenoxy ether 5%, fatty alcohol-polyoxyethylene ether (7) 5%, glyceryl monolaurate APEO 10%, mineral oil subsidy to 100%.(2∶1∶5)
Embodiment 23 (30% oil-suspending agent)
Trifloxysulfuron 3%, pyrithiobac-sodium 9%, haloxyfop-r-methyl 5%, butroxydim 13%, fatty alcohol-polyoxyethylene ether 5%, glyceryl monolaurate APEO 10%, fast penetration enhancer T10%, plant oil subsidy to 100%.(1∶3∶6)
6, the preparation of missible oil
Former medicine, solvent, emulsifier are added together, make and be dissolved into even oil phase.As embodiment 24～30 prescriptions.
Embodiment 24 (2% missible oil)
Trifloxysulfuron 0.2%, pyrithiobac-sodium 0.6%, clethodim 1.2%, N-Methyl pyrrolidone 5%, fatty alcohol-polyoxyethylene ether 5%, glyceryl monolaurate APEO 10%, fast penetration enhancer T 10%, plant oil subsidy to 100%.(1∶3∶7)
Embodiment 25 (5% missible oil)
Trifloxysulfuron 0.8%, pyrithiobac-sodium 0.3%, CLOPROXYDIM 2%, sethoxydim 1.9%, cyclohexanone 20%, aliphatic acid polyethenoxy ether 5%, trilaurin APEO 10%, JFC 10%, and toluene is mended to 100%.(8∶3∶39)
Embodiment 26 (10% missible oil)
Trifloxysulfuron 2%, pyrithiobac-sodium 2%, clefoxidim 6%, N, dinethylformamide 10%, fatty alcohol-polyoxyethylene ether 10%, glyceryl monolaurate APEO 10%, fast penetration enhancer T 10%, solvent oil subsidy to 100%.(1∶1∶3)
Embodiment 27 (20% missible oil)
Trifloxysulfuron 6%, the different monooctyl ester 2% of pyrithiobac-sodium, cycloxydim 12%, dimethyl sulfoxide (DMSO) 20%, polyoxyethylene nonylphenol ether (10) 15%, dimethylbenzene is mended to 100%.(3∶1∶6)
Embodiment 28 (30% missible oil)
Trifloxysulfuron 4%, pyrithiobac-sodium 10%, Quizalotop-ethyl 6%, clethodim 10%, tributyl phosphate 30%, oleic acid PEG400 ester 10%, glyceryl monolaurate APEO 10%, fast penetration enhancer T 10%, solvent oil subsidy to 100%.(2∶5∶8)
Embodiment 29 (40% missible oil)
Trifloxysulfuron 3%, pyrithiobac-sodium 12%, CGA21568425%, N-Methyl pyrrolidone 30%, castor oil polyoxyethylene alcohol 10%, glyceryl monolaurate APEO 5%, solvent oil subsidy to 100%.(3∶12∶25)
Embodiment 30 (50% missible oil)
Trifloxysulfuron 10%, pyrithiobac-sodium 15%, haloxyfop-P-methyl 25%, methyl alcohol 20%, monoethanolamine 10%, aliphatic amine polyoxyethylene ether 5%, glycerine bilaurate APEO 4%, alkylphenol polyoxyethylene phosphate 5%, N-Methyl pyrrolidone is mended to 100%.(2∶3∶5)
7, composition is at the herbicidal effect in greenhouse
In the greenhouse, adopt potted plant method to measure the preparation and the trifloxysulfuron of composition, pyrithiobac-sodium, dislike careless ether, Quizalotop-ethyl, diclofop-methyl, fluoronaphthalene grass ester, fluazifop, efficient fluazifop, the spirit of pyrrole fluorine chlorine standing grain, haloxyfop-P-methyl, alkynes grass ester, chloroazifoppropynyl, fenoxapropPethyl, propaquizafop, the careless ester of sugar; butroxydim; clethodim; tepraloxydim; sethoxydim; methoxyphenone; clefoxidim; CLOPROXYDIM; CGA215684 is to the preventive effect of grass family and broad leaved weed.
Test method: the greenhouse pot culture method is adopted in test, the quantitative weed seed of sowing in Disposable paper cup, treat that the unearthed back of weeds 1.5～2 leaves carry out thinning during the phase, each dixie cup is cultivated by the more consistent weeds plant of 5 strain growing ways of selecting and remain, and regularly water the aqueous solution of N, P, K composite fertilizer, treat that grassy weed grows to 3～4 leaf phases, broad leaved weed 4～6 leaves and carries out cauline leaf spraying processing with crawler type crop sprayer during the phase, handle and to be placed on the greenhouse behind the back hour and to continue to cultivate and observe the herbicidal effect of each processing of " Invest, Then Investigate " in 20 days.The results are shown in Table 1.
Table 1 trifloxysulfuron, pyrithiobac-sodium and fragrant phenoxy propionic ester/cyclohexenone analog weed killer herbicide and composition embodiment are to the preventive effect of grass family and broad leaved weed
Conclusion: go up medicine administered to bring out the cold effect result of the test and show, after trifloxysulfuron, pyrithiobac-sodium and fragrant phenoxy propionic ester/cyclohexenone analog are used with more single with compare weeds particularly the preventive effect of grassy weed barnyard grass grass, golden green foxtail be significantly improved, broad leaved weed also there is obvious synergistic effect, reaches the purpose of preventing and kill off grassy weed and broad leaved weed simultaneously.
Though above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (7)
1, a kind of herbicidal composition, it is characterized in that, said composition contains trifloxysulfuron, pyrithiobac-sodium, fragrant phenoxy propionic ester and/or cyclohexenone analog, trifloxysulfuron: pyrithiobac-sodium: the ratio of weight and number of fragrant phenoxy propionic ester and/or cyclohexenone analog is 0.1: 1: 20-20: 1: 0.1.
2, herbicidal composition as claimed in claim 1 is characterized in that, trifloxysulfuron: pyrithiobac-sodium: the weight part ratio of fragrant phenoxy propionic ester and/or cyclohexenone analog is 0.2: 1: 10-10: 1: 0.2.
3, herbicidal composition as claimed in claim 1 or 2 is characterized in that,
Described trifloxysulfuron is 1-(4,6-dimethoxypyridin-2-yl)-3-[3-(2,2, the 2-trifluoro ethoxy)-2-pyridine sulfonyl)] urea, or its organic salt such as ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, or its mineral salt such as sylvite, sodium salt, ammonium salt;
Described pyrithiobac-sodium is 2-chloro-6-(4,6-dimethoxypyridin-2-base sulfenyl) benzoic acid, or its organic salt such as ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, or its mineral salt such as sylvite, sodium salt, ammonium salt, or its ester class such as methyl esters, butyl ester, monooctyl ester, different monooctyl ester;
Described fragrant phenoxy propionic acid ester is: (RS)-and 2-[2-[4-(3,5-two chloro-2-pyridine radicals oxygen) phenoxy group] propionyl]-1, the 2-oxazolidine, (R)-and 2-[4-(6-chloro-2-quinoxaline base oxo) phenoxy group] ethyl propionate, (RS)-2-[4-(2, the 4-dichlorophenoxy) phenoxy group] methyl propionate, (R)-2-[7-(2-chloro-a, a, a-three fluoro-are right-toloxyl)-naphthalene-2-base oxygen] methyl propionate, (RS)-and 2-[4-(5-trifluoromethyl-2-pyridine oxygen base) phenoxy group] butyl propionate, (R)-and 2-{4-[(5-5-flumethiazine-2-yl) the oxygen base] phenoxy group } butyl propionate, (RS)-and 2-[4-(three chloro-5-trifluoromethyls-2-pyridine oxygen base) phenoxy group] methyl propionate, (R)-and 2-[4-(three chloro-5-trifluoromethyls-2-pyridine oxygen base) phenoxy group] methyl propionate, 2-propynyl-(R)-2-[4-(5-chloro-3-fluoro-2-pyridine oxygen base) phenoxy group] propionic ester, 2-[4-(6-chloro-2-[4-morpholinodithio oxygen base) phenoxy group] ethyl propionate, (±)-2-[4-(6-1,3-benzothiazole-2-base oxygen) phenoxy group] propionic acid, 2-propynyl-2-[4-((3,5-two chloro-2-pyridine radicals) phenoxy group oxygen base)] propionic ester, (R)-and 2-[4-(6-chloro-2-benzoxazoles oxygen base) phenoxy group] ethyl propionate, (R)-and 2-isopropylidene amino-oxygen ethyl (R)-2-[4-(6-chloro-quinoxaline-2-base oxygen) phenoxy group] propionic ester, (±)-tetrahydrochysene glycosyl (R)-2-[4-(6-chloro-quinoxaline-2-base oxygen) phenoxy group] propionic ester, hydroxyl penta standing grain spirit;
Described cyclohexenone analog is: the rare propoxyl group imino group of (±)-2-[(E)-1-[(E)-3-chlorine] propyl group]-5-[2-(ethylmercapto group) propyl group]-3-hydroxyl hexamethylene-2-ketenes, (RS)-2-[1-(ethoxy imino) butyl]-3-hydroxyl-5-thiophene alkane-3-basic ring oneself-the 5-ketenes, (±)-(EZ)-2-[1-(ethoxy imino) butyl]-5-[2-(ethylmercapto group) propyl group]-3-hydroxyl hexamethylene-2-ketenes, (EZ)-(RS)-2-{1-[(2E)-and 3-chloroallyloxyamino imino group] propyl group }-3-hydroxyl-5-tetrahydropyran-4-base hexamethylene-2-alkene-1-ketone, 2-[1-(ethoxy imino) propyl group]-3-hydroxyl-5-(2,4, the 6-trimethylphenyl) hexamethylene-2-ketenes, 2-{1-[2-(4-chlorophenoxy) propoxyl group imino group] butyl }-3-hydroxyl-5-(thiophene alkane-3-yl) hexamethylene-2-ketenes, (RS)-2-[1-(3-chloroallyloxy) iminobutyl]-5-(2-ethylthiopropyl)-3-hydroxycyclohex-2-enone, butroxydim and CGA 215684.
4, herbicidal composition as claimed in claim 3 is characterized in that, the active component weight percentage in the described composition is 0.5～95.0%.
5, as claim 2 or 4 described herbicidal compositions, it is characterized in that, contain at least a surfactant in the described composition.
6, herbicidal composition as claimed in claim 5 is characterized in that, described composition is mixed with missible oil, liquor, aqua, emulsifiable concentrate, microemulsion, wetting powder, aqueous suspension agent, oil-suspending agent, water dispersion granule or soluble powder/granula.
7, any described herbicidal composition of claim 1～6 is being used for preventing and treating the annual and perennial grassy weed in cotton field and broad leaved weed is used.
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