CN101946783A - Herbicide composition and application thereof - Google Patents
Herbicide composition and application thereof Download PDFInfo
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- CN101946783A CN101946783A CN2010102858343A CN201010285834A CN101946783A CN 101946783 A CN101946783 A CN 101946783A CN 2010102858343 A CN2010102858343 A CN 2010102858343A CN 201010285834 A CN201010285834 A CN 201010285834A CN 101946783 A CN101946783 A CN 101946783A
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Abstract
The invention relates to a herbicide composition, which contains the following active ingredients in part by weight: 0.1 to 33 parts of penoxsulam and 0.1 to 99 parts of metamifop. The invention also relates to application of the herbicide composition in preventing and controlling annual and perennial broadleaf weeds and grass weeds in paddy fields. Compared with single agent, the herbicide composition has the advantages that weeding effect is remarkably improved, extremely good synergy is shown, the using amount of agents, influence on the environment, and the agent cost of peasants are reduced; and meanwhile, the herbicide composition enlarges the weeding spectrum and can effectively delay the occurrence and development of single agent resistance.
Description
Technical field
The present invention relates to the agricultural herbicide field, specifically, relate to a kind of herbicidal composition and application thereof that contains penoxsuam and two kinds of active components of metamifop.
Background technology
Penoxsuam (penoxsulam) is use weed killer herbicide behind the seedling by U.S. Tao Nongke company (Dow AgroSciences) exploitation, belongs to triazolopyrimidine sulfonamides herbicide, and it works by inhibition acetolactate synthestase (ALS).
Metamifop (metamifop) is fragrant phenoxy esters of gallic acid (AOPP) weed killer herbicide, can suppress the ACC enzyme, promotes vegetable fatty acid synthetic.It is as a kind of acetyl-CoA carboxylase (ACCase) inhibitor, can prevent and kill off most of annual gramineous weeds admirably, different with most of AOPP class weed killer herbicides is, metamifop is to rice safety, can effectively prevent and kill off the paddy field main weeds, as barnyard grass grass, moleplant seed, lady's-grass and eleusine indica, be mainly used in the weeding of transplanting and direct sowing rice field.
Yet above-mentioned two kinds of weed killer herbicides use general to the integrated control effect of annual and perennial broad leaved weed of paddy field and grassy weed separately, can't reach optimum herbicidal effect.
Summary of the invention
The purpose of this invention is to provide a kind of herbicidal composition that contains penoxsuam and two kinds of active components of metamifop.
Another object of the present invention provides the application of described herbicidal composition.
In order to realize purpose of the present invention, the present invention discloses a kind of herbicidal composition, and it contains the active component of following weight portion:
Penoxsuam 0.1～33
Metamifop 0.1～99;
Preferably, described herbicidal composition contains the active component of following weight portion:
Penoxsuam 1～10
Metamifop 1～30.
Wherein, the chemical name of described penoxsuam is 3-(2, the 2-difluoroethoxy)-N-(5,8-dimethoxy-[1,2,4] triazol [1,5-c] pyrimidine-2-base)-α, α, and α-fluoroform phenyl-2-sulfonamide, its molecular formula is C
16H
14F
5N
5O
5S, relative molecular weight are 483.4, and structural formula is:
The chemical name of described metamifop is (2R)-2-[4-[(6-chloro-2-Ben oxazolyl)] phenoxy group]-N-(2-fluorobenzene)-N-methyl propanamide, its molecular formula is C
23H
18ClFN
2O
4, relative molecular weight is 440.9, structural formula is:
One of preferred composition of weed killer herbicide of the present invention penoxsuam (penoxsulam) is to use weed killer herbicide behind the seedling by U.S. Tao Nongke company (Dow AgroSciences) exploitation, belong to triazolopyrimidine sulfonamides herbicide, it works by suppressing acetolactate synthestase (ALS).
Another preferred composition metamifop (metamifop) of weed killer herbicide of the present invention is fragrant phenoxy esters of gallic acid (AOPP) weed killer herbicide, can suppress the ACC enzyme, promotes vegetable fatty acid synthetic.It is as a kind of acetyl-CoA carboxylase (ACCase) inhibitor, can prevent and kill off most of annual gramineous weeds admirably, different with most of gramineous weed weedicides is, metamifop is to rice safety, can effectively prevent and kill off the paddy field main weeds, as barnyard grass grass, moleplant seed, lady's-grass and eleusine indica, be mainly used in the weeding of transplanting and direct sowing rice field.
Because the structure type difference of above-mentioned two kinds of compositions, the mechanism of action of its weeding are also different, both composite preventive effects that can improve to a greater degree the paddy field malignant weed can enlarge and kill the grass spectrum.
In the herbicidal composition of the present invention, the weight percentage of described active component is 0.1～96%; The content 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 the ratio of a kind of component and another kind of component and the degree of synergistic effect.
Except that active component, described herbicidal composition also contains at least two kinds of carriers, and wherein at least a carrier is a surfactant.Other carriers except that surfactant can be solid or liquid, the carrier that is generally used for preparing herbicidal composition all can be used for the present invention, as white carbon, kaolin, diatomite, bentonite, precipitated calcium carbonate, gypsum, attapulgite, soluble starch, urea, amine fertilizer, the mixture of urea and amine fertilizer, glucose, maltose, sucrose, citric acid, Anhydrous potassium carbonate, natrium carbonicum calcinatum, Carbon Dioxide hydrogen potassium, anhydrous sodium sulfate, anhydrous sodium bicarbonate, in the mixture of Anhydrous potassium carbonate and Carbon Dioxide hydrogen potassium and the mixture of natrium carbonicum calcinatum and anhydrous sodium bicarbonate etc. one or more, or other this area common carrier.
Described surfactant is selected from emulsifier, in dispersant and the wetting agent one or more, wherein, emulsifier is selected from phenethyl phenol polyethenoxy polyoxy third rare ether, styryl phenol formaldehyde resin polyoxyethylene-polyoxypropylene block type polyethers, aliphatic acid polyethenoxy ether, polyoxyethylene aliphatic alcohol ether, the trilaurin APEO, two Bian xenyl APEOs, the glyceryl monolaurate APEO, styryl phenol APEO, castor oil polyoxyethylene ether, the ethoxy castor oil APEO, alkyl phenol polyoxyethylene polyoxypropylene ether, styryl phenyl APEO, the secondary octyl phenol polyethenoxy ether, polyoxyethylene nonylphenol ether, the alkylaryl polyoxyethylene poly-oxygen propylene aether, alkylphenol polyoxyethylene, sorbitan fatty acid ester polyoxyethylene groups ether, aliphatic alcohol polyoxyethylene sulfonate, the polyoxyethylene alkylphenol formaldehyde condensation products, dodecyl sodium sulfonate calcium, decyl alcohol polyoxyethylene ether sulfosuccinic acid sodium, alkylphenol polyoxyethylene formaldehyde condensation products sodium sulphate, alkylphenol polyoxyethylene succinate monoester sulfonate, the alkylphenol-polyethenoxy phosphate, alkylphenol polyoxyethylene sulfosuccinate ester, polyoxyethylene fatty acid fat, PMA, the polyoxyethylene fatty amine, ethoxy castor oil, alkyl-diethylene glycol ether-sodium sulfonate, fatty acid polyethylene glycol ester, fast penetration enhancer T, in oleic acid PEG400 ester and the fatty alcohol-polyoxyethylene ether one or more;
Described dispersant is selected from the sodium salt of sodium lignin sulfonate, sodium metnylene bis-naphthalene sulfonate (dispersant NNO), calcium lignosulfonate, Sodium Polyacrylate, sodium methylene bis-naphthalene sulfonate, dispersing agent MF, polyvinylpyrrolidone, alkyl amide taurate, alkyl naphthalene sulfonic acid condensation polymer and in the sodium methylene bis-naphthalene sulfonate formaldehyde condensation products one or more;
Described wetting agent is selected from the mixture of Negel, lauryl sodium sulfate, Teepol, neopelex, fatty alcohol polyglycol ether sulphate, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO, Fluhyzon formaldehyde condensation products, alkylnaphthalene sulfonate and anion wetting agent.
Also contain the preparation used additives in the herbicidal composition of the present invention, it is selected from solvent, thickener, antifreezing agent and the defoamer one or more.
Wherein, described solvent comprises water, N-Methyl pyrrolidone, N, dinethylformamide, tributyl phosphate, tetrahydrofurfuryl alcohol, toluene, dimethylbenzene, dimethyl sulfoxide (DMSO), oxolane, 1,4 dioxane, cyclohexanol, cyclohexanone, epoxidized soybean oil, plant soybean oil, liquid wax, lubricating oil or solvent naphtha No. 100, No. 150, No. 180, No. 200 etc. also can be other this areas solvents commonly used.
Described thickener comprises xanthans, polyvinyl alcohol, sodium alginate, diatomite, starch, kaolin or organobentonite etc., can also be other this areas thickeners commonly used.
Described antifreezing agent comprises propane diols, ethylene glycol, glycerine or urea etc., can also be other this areas antifreezing agents commonly used.
Described defoamer is tributyl phosphate or silicone etc., can also be other this areas defoamers commonly used.
The formulation of herbicidal composition of the present invention is missible oil, aqueous emulsion, aqueous suspension agent, oil-suspending agent, wetting powder, water dispersion granule, soluble powder or soluble granula, and above-mentioned formulation all can be by the conventional method preparation of this area.
Wherein, described missible oil is consisting of of percentage by weight: active component 0.1～96%, surfactant 1～30%, solvent complement to 100%, and described solvent is aromatic hydrocarbon solvent or alcohols solvent;
Preparation method:, make it become even oil phase with active component, surfactant and solvent dissolving.
Described aqueous emulsion is consisting of of percentage by weight: active component 0.1～96%, emulsifier 1～30%, thickener 0.1～5%, antifreezing agent 1～20%, solvent 1～30%, water complement to 100%, and described solvent is aromatic hydrocarbon solvent or alcohols solvent;
Preparation method:, make it become even oil phase with active component, emulsifier and solvent dissolving; Water, antifreezing agent, thickener are mixed, make it become even water, under high-speed stirred, water is joined oil phase or oil phase is joined water, form the aqueous emulsion of favorable dispersibility.
Described aqueous suspension agent is consisting of of percentage by weight: active component 0.1～96%, dispersant 1～30%, wetting agent 1～30%, antifreezing agent 1～20%, thickener 0.1～5%, defoamer 0.1～5%, emulsifier 1～30%, water complement to 100%;
The preparation method: with water is medium, and active component, surfactant, thickener, defoamer, antifreezing agent are added porphyrize in the sand milling still, makes aqueous suspension agent.
Described oil-suspending agent is consisting of of percentage by weight: active component 0.1～96%, dispersant 1～30%, wetting agent 0.1～30%, thickener 0.1～10%, defoamer 0.1～5%, emulsifier 1～30%, oil complement to 100%;
The preparation method: with oil is medium, and active component, surfactant, thickener, defoamer are added porphyrize in the sand milling still, makes oil-suspending agent.
Described wetting powder, soluble powder, water dispersible granules, the soluble granula composition of percentage by weight are: active component 0.1～96%, wetting agent 1～20%, dispersant 1～20%, other carriers complement to 100%;
The preparation method of wetting powder or soluble powder: each active component, surfactant and other carriers etc. are fully mixed, after ultrafine crusher is pulverized, promptly.
The preparation method of water dispersible granules or soluble granula: each active component and powder carrier, wetting agent and dispersant etc. are mixed pulverizing; spray-dried or fluidized drying promptly or after adding water again and mediating, adds in the comminutor and carries out granulation; and then drying, screening, promptly.
Except that above-mentioned formulation, herbicidal composition of the present invention can also be weed killer herbicide field other formulations commonly used, and as liquor, aqua, emulsifiable concentrate, microemulsion, suspension emulsion, microcapsule formulations etc., it all can be by the conventional method preparation of this area.
Herbicidal composition of the present invention can finished product preparation form provide, promptly each material mixes in the composition, directly uses; Form that also can the independent preparation of each material provides, and mixes the direct concentration that obtains required active substance of mixing with water of the concentrate of each active component among the present invention soon before using in bucket or jar container of etc.ing voluntarily.
Herbicidal composition of the present invention can be used for preventing and treating annual and perennial broad leaved weed of paddy field and grassy weed etc., and it uses the place is paddy rice ground etc.
The inventor shows after deliberation, herbicidal composition of the present invention can enlarge the grass that kills of penoxsuam, metamifop single component and compose, can improve penoxsuam, metamifop preventive effect to a greater degree to paddy field weed, simultaneously can reduce using dosage, reduce pollution environment.
Herbicidal composition of the present invention can have the compound of weeding, desinsection or bactericidal property with other, particularly cauline leaf processing type weed killer herbicide mixes use, also can mix use with nematocide, protective agent, growth regulator, nutrient for plants or soil conditioner etc.
Herbicidal composition using method of the present invention is simple, before weed germination or after sprouting, uses herbicidal composition of the present invention according to a conventional method to the place of crop and plant growth, as mixes soil, spraying, injection, cast etc., and application process is simple.The amount of application of herbicidal composition of the present invention is decided with weather condition or crop state.Usually, consumption is 30-500g (a.i.)/hm
2Herbicidal composition of the present invention, its 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.
The beneficial effect of herbicidal composition of the present invention is as follows:
1, in the herbicidal composition of the present invention, each active component is composite in certain ratio range, show fabulous synergistic effect, mixed composition has obviously improved herbicidal effect than its single agent, and then reduced using dosage, when reducing peasant's drug cost, reduced degree to environmental influence;
2, enlarged and killed the grass spectrum, made a kind of medicament can prevent and treat multiple weeds simultaneously, a kind of means of prevention extremely easily and effectively is provided, the broad leaved weed and the grassy weed of paddy field all had good preventive effect;
3, said composition is the compounded combination of systemic herbicide and tagging property weed killer herbicide, and the different action characteristics of medicament make and the extremely strong mutual supplement with each other's advantages of generation between two kinds of active components can effectively delay the generation and the development of single agent resistance.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Embodiment 1 contains the missible oil of 0.5% active component
Penoxsuam 3g, metamifop 2g, polyoxyethylene nonylphenol ether (7) 50g, fatty alcohol-polyoxyethylene ether 50g, dimethylbenzene are mended to 1kg, and mixed dissolution becomes even oil phase.
Embodiment 2 contains the missible oil of 0.4% active component
Penoxsuam 1g, metamifop 3g, aliphatic amine polyoxyethylene ether 40g, laurate APEO 40g, solvent naphtha are mended to 1kg for No. 180, and mixed dissolution becomes even oil phase.
Embodiment 3 contains the missible oil of 50% active component
Penoxsuam 150g, metamifop 350g, calcium dodecyl benzene sulfonate 50g, fatty alcohol-polyoxyethylene ether (40) 50g, single oleamide polyoxyethylene groups disodium sulfosuccinate 50g, oleic acid 10g, N-Methyl pyrrolidone are mended to 1kg, and mixed dissolution becomes even oil phase.
Embodiment 4 contains the missible oil of 80% active component
Penoxsuam 200g, metamifop 600g, calcium dodecyl benzene sulfonate 30g, emulsifier 0203B 40g, N-Methyl pyrrolidone are mended to the 1kg mixed dissolution and are become even oil phase.
Embodiment 5 contains the aqueous emulsion of 0.4% active component
Penoxsuam 0.5g, metamifop 3.5g, cyclohexanone 50g, fatty alcohol-polyoxyethylene ether (5) 20g, fatty alcohol-polyoxyethylene ether (80) 20g, urea 80g, kaolin 30g, silicone 20g, water complement to 1kg.
Preparation method:, make it become even oil phase with penoxsuam, metamifop, cyclohexanone, fatty alcohol-polyoxyethylene ether (5) and fatty alcohol-polyoxyethylene ether (80) mixed dissolution; With water, urea, kaolin, silicone mixed dissolution, make it become even water; Under (3000 rev/mins) stir at a high speed, water is joined oil phase, form the aqueous emulsion of favorable dispersibility.
Embodiment 6 contains the aqueous emulsion of 0.9% active component
Penoxsuam 3g, metamifop 6g, N-Methyl pyrrolidone 30g, polyvinyl alcohol 20g, calcium dodecyl benzene sulfonate 40g, phenethyl phenol polyethenoxy polyethenoxy ether 60g, ethylene glycol 50g, sodium alginate 10g, silicone 20g, water complement to 1kg.
Preparation method:, make it become even oil phase with penoxsuam, metamifop, N-Methyl pyrrolidone, polyvinyl alcohol, calcium dodecyl benzene sulfonate and phenethyl phenol polyethenoxy polyethenoxy ether mixed dissolution; With water, ethylene glycol, sodium alginate, silicone mixed dissolution, make it become even water; Under (3000 rev/mins) stir at a high speed, water is joined oil phase, form the aqueous emulsion of favorable dispersibility.
Embodiment 7 contains the aqueous emulsion of 12% active component
Penoxsuam 60g, metamifop 60g, tributyl phosphate 100g, neopelex 50g, castor oil polyoxyethylene ether 50g, xanthans 3g, urea 50g, water complement to 1kg.
Preparation method:, make it become even oil phase with penoxsuam, metamifop, tributyl phosphate, neopelex and castor oil polyoxyethylene ether mixed dissolution; With water, xanthans, urea mixed dissolution, make it become even water; Under (3000 rev/mins) stir at a high speed, water is joined oil phase, form the aqueous emulsion of favorable dispersibility.
Embodiment 8 contains the aqueous emulsion of 70% active component
Penoxsuam 200g, metamifop 500g, N-Methyl pyrrolidone 50g, PMA 30g, alkyl-diethylene glycol ether-sodium sulfonate 35g, calcium dodecyl benzene sulfonate 20g, propylene glycol alginate 10g, ethylene glycol 40g, tributyl phosphate 20g, water complement to 1kg.
Preparation method:, make it become even oil phase with penoxsuam, metamifop, N-Methyl pyrrolidone, PMA, alkyl-diethylene glycol ether-sodium sulfonate, calcium dodecyl benzene sulfonate and propylene glycol alginate mixed dissolution; With water, ethylene glycol, tributyl phosphate mixed dissolution, make it become even water; Under (3000 rev/mins) stir at a high speed, oil phase is joined water, form the aqueous emulsion of favorable dispersibility.
Embodiment 9 contains the aqueous emulsion of 90% active component
Penoxsuam 500g, metamifop 400g, N, dinethylformamide 20g, alkylphenol polyoxyethylene formaldehyde condensation products sodium sulphate 10g, agricultural newborn 160110g, propane diols 40g, silicone 5g, water complement to 1kg.
The preparation method: with penoxsuam, metamifop, N, dinethylformamide, alkylphenol polyoxyethylene formaldehyde condensation products sodium sulphate, newborn 1601 mixed dissolutions of farming make it become even oil phase; With water, propane diols, silicone, mixed dissolution, make it become even water; Under high-speed stirred, oil phase is joined water, form the aqueous emulsion of favorable dispersibility.
Embodiment 10 contains the aqueous suspension agent of 0.6% active component
Penoxsuam 2g, metamifop 4g, fatty alcohol-polyoxyethylene ether 50g, diatomite 30g, glycerine 40g, tributyl phosphate 20g, water complement to 1kg.
The preparation method: with water is medium, and penoxsuam, metamifop, fatty alcohol-polyoxyethylene ether, diatomite, glycerine, tributyl phosphate are added porphyrize in the sand milling still, makes aqueous suspension agent.
Embodiment 11 contains the aqueous suspension agent of 20% active component
Penoxsuam 80g, metamifop 120g, styryl phenol APEO 50g, kaolin 12g, lauryl sodium sulfate 10g, glycerine 80g, silicone 50g water complement to 1kg.
The preparation method: with water is medium, and penoxsuam, metamifop, styryl phenol APEO, kaolin, lauryl sodium sulfate, glycerine, silicone are added porphyrize in the sand milling still, makes aqueous suspension agent.
Embodiment 12 contains the aqueous suspension agent of 20% active component
Penoxsuam 120g, metamifop 80g, sodium lignin sulfonate 50g, lauryl sodium sulfate 10g, starch 20g, ethylene glycol 60g, silicone 50g, water complement to 1kg.
The preparation method: with water is medium, and penoxsuam, metamifop, sodium lignin sulfonate, lauryl sodium sulfate, starch, ethylene glycol, silicone are added porphyrize in the sand milling still, makes aqueous suspension agent.
Embodiment 13 contains the aqueous suspension agent of 65% active component
Penoxsuam 200g, metamifop 450g, sorbitan fatty acid ester polyoxyethylene groups ether 30g, lauryl sodium sulfate 10g, butyl oleate 50g, ethylene glycol 50g, go back virgin rubber 3g, tributyl phosphate 40g, water complements to 1kg.
The preparation method: with water is medium, with penoxsuam, metamifop, sorbitan fatty acid ester polyoxyethylene groups ether, lauryl sodium sulfate, butyl oleate, ethylene glycol, go back virgin rubber, tributyl phosphate and add porphyrize in the sand milling still, make aqueous suspension agent.Embodiment 14 contains the oil-suspending agent of 0.55% active component
Penoxsuam 2g, metamifop 3.5g, organobentonite 100g, butyl oleate 50g, tributyl phosphate 50g, plant soybean oil subsidy are to 1kg.
The preparation method: with the plant soybean oil is medium, and penoxsuam, metamifop, organobentonite, butyl oleate, tributyl phosphate are added porphyrize in the sand milling still, makes oil-suspending agent.
Embodiment 15 contains the oil-suspending agent of 0.55% active component
Penoxsuam 2.5g, metamifop 3.0g, fatty alcohol-polyoxyethylene ether 100g, polyoxyethylene nonylphenol ether 50g, organobentonite 30g, tributyl phosphate 40g, epoxy soybean oil subsidy are to 1kg.
The preparation method: with the epoxidized soybean oil is medium, and penoxsuam, metamifop, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, organobentonite, tributyl phosphate are added porphyrize in the sand milling still, makes oil-suspending agent.
Embodiment 16 contains the oil-suspending agent of 10% active component
Penoxsuam 40g, metamifop 60g, 1,2-dicarboxylic acids ethyl-N-alkyl sulfosuccinic acid amides four sodium 90g, butyl oleate 50g, organobentonite 10g, silicone 20g, paraffin oil subsidy are to 1kg.
The preparation method: with the paraffin oil is medium, and with penoxsuam, metamifop, 1,2-dicarboxylic acids ethyl-N-alkyl sulfosuccinic acid amides four sodium, butyl oleate, silicone, organobentonite add porphyrize in the sand milling still, make oil-suspending agent.
Embodiment 17 contains the oil-suspending agent of 20% active component
Penoxsuam 120g, metamifop 80g, fatty alcohol-polyoxyethylene ether 100g, polyoxyethylene nonylphenol ether (7) 50g, attapulgite 30g, silicone 20g, epoxy soybean oil subsidy are to 1kg.
The preparation method: with the epoxidized soybean oil is medium, and penoxsuam, metamifop, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether (7), attapulgite, silicone are added porphyrize in the sand milling still, makes oil-suspending agent.
Embodiment 18 contains the oil-suspending agent of 50% active component
Penoxsuam 250g, metamifop 250g, polyoxyethylene sorbitan list isostearate 100g, castor oil polyoxyethylene ether (20) 50g, alkylphenol polyoxyethylene 50g, white carbon 50g, tributyl phosphate 20g, solvent naphtha are mended to 1kg for No. 180.
The preparation method: with solvent naphtha is for No. 180 medium, penoxsuam, metamifop, polyoxyethylene sorbitan list isostearate, castor oil polyoxyethylene ether (20), alkylphenol polyoxyethylene, white carbon, tributyl phosphate are added porphyrize in the sand milling still, make oil-suspending agent.
Embodiment 19 contains the wetting powder of 90% active component
Penoxsuam 600g, metamifop 300g, lauryl sodium sulfate 20g, kaolin are complemented to 1kg, fully mix, after ultrafine crusher is pulverized, promptly obtain containing the wetting powder of 90% active component.
Embodiment 20 contains the wetting powder of 96% active component
Penoxsuam 500g, metamifop 460g, sodium lignin sulfonate 10g, soluble starch are complemented to 1kg, fully mix, after ultrafine crusher is pulverized, promptly obtain containing the wetting powder of 96% active component.
Embodiment 21 contains the wetting powder of 3.6% active component
Penoxsuam 12g, metamifop 24g, styryl phenyl APEO 50g, bentonite 50g, attapulgite are complemented to 1kg, fully mix, after ultrafine crusher is pulverized, promptly obtain containing the wetting powder of 3.6% active component.
Embodiment 22 contains the wetting powder of 20% active component
Penoxsuam 100g, metamifop 100g, N-methyl-N-long-chain fatty acid taurate 20g, starch 20g, precipitated calcium carbonate are complemented to 1kg, fully mix, after ultrafine crusher is pulverized, promptly obtain containing the wetting powder of 20% active component.
Embodiment 23 contains the wetting powder of 62% active component
Penoxsuam 300g, metamifop 320g, alkyl phosphate triethanolamine salt 50g, sodium lignin sulfonate 50g, talcum powder are complemented to 1kg, fully mix, after ultrafine crusher is pulverized, promptly obtain containing the wetting powder of 62% active component.
Embodiment 24 contains the water-dispersible granules of 95% active component
Penoxsuam 600g, metamifop 350g, alkylphenol polyoxyethylene succinate monoester sulfonate 20g, lauryl sodium sulfate 10g, urea complement to 1kg, mix and pulverize after fluidized drying promptly gets water dispersible granules.
Embodiment 25 contains the water-dispersible granules of 95% active component
Penoxsuam 350g, metamifop 600g, aliphatic alcohol polyoxyethylene sulfonate 10g, alkylnaphthalene sulfonate 10g, polyvinylpyrrolidone complement to 1kg, mix and pulverize, the spray-dried water dispersible granules that promptly gets.
Embodiment 26 contains the water-dispersible granules of 0.6% active component
Penoxsuam 2g, metamifop 4g, dialkyl group succinic acid sulfonate 30g, sodium lignin sulfonate 20g, gypsum complement to 1kg, mix to pulverize, and after adding water again and mediating, add in the comminutor and carry out granulation, and then drying, screening promptly get water dispersible granules.
Embodiment 27 contains the water-dispersible granules of 60% active component
Penoxsuam 200g, metamifop 400g, naphthalene sulfonic acids-phenol sulfonic acid-formaldehyde condensation products 20g, ammonium sulfate 30g, urea complement to 1kg; mix and pulverize; after adding water again and mediating, add in the comminutor and carry out granulation, and then drying, screening promptly get water dispersible granules.
Below the synergism test used with by penoxsuam, metamifop and to the preventive effect of broad leaved weed and grassy weed, further specify herbicidal composition of the present invention.
The synergistic effect that test example 1 penoxsuam and metamifop are used with
The purpose of this test example is to study the synergistic effect that penoxsuam and metamifop are used with.
One, material and method
1. medicament: penoxsuam, metamifop and the two different proportion sample;
2. give birth to survey for the examination weeds: for the examination weeds is broad leaved weed or grassy weeds such as barnyard grass grass, lady's-grass, the root of Beijing euphorbia, Commelina communis, and weed seed is provided by China Agricultural University, selects that maturity is good, neat and consistent, germination rate be standby at the seed more than 90%;
3. test method: the greenhouse pot culture method is adopted in test, under each dosage weeds is carried out the cauline leaf spraying and handles.
Test is the special-purpose soil of test of not medication plot collection with soil, gets bore 9.5cm, dark 6cm flowerpot, and soil is filled to 3/4 height.After adding water and treating that soil is fully moistening, each is broadcast in the flowerpot for examination weed seed, every kind of weeds guarantee 15～20 seeds, and percentage of seedgermination is 70～90%.After planting, cover the thick mixed husky fine earth of 0.5～1.0cm, add the water mode with the bottom and make that soil suction is saturated to be placed on incubation growth in the greenhouse, moisturizing regularly is to keep soil moisture suitable, and temperature is between 20 ℃～30 ℃ in the greenhouse, and air humidity is more than 50%.Weeds emerge the back thinning, decide strain, grow to the cauline leaf spraying processing after full-automatic spray tower (Nanjing agricultural machinery research institute) carries out bud with 3WPSHZ-500 during the phase of 2～2.5 leaves in weeds.The spray powder of sprayer unit amasss 0.097m
2, amount of liquid medicine 10ml, operating pressure 0.2MPa liquid measure 40%.4 repetitions are established in every processing, and other establishes blank.Handle in the rearmounted greenhouse and grow, keep soil moisture content 100% with bottom irrigation method moisturizing every day.Regularly observe the plant reaction symptom, behind medicine, pressed the comprehensive activity of weeding of 0-100% staging visual assessment in 15 days, select the part weeds to measure the acrial part fresh weight simultaneously.
Two, result of the test
Adopt the SPSS software analysis, obtain virulence equation, LC
50Value (mg/L) and co-toxicity coefficient the results are shown in Table 1.
Table 1 penoxsuam, metamifop and the two different proportion co-toxicity coefficient measurement result that is mixed
Annotate: co-toxicity coefficient＞120 expression synergy.
This shows that the mixing of penoxsuam and metamifop has synergistic effect in the herbicidal composition of the present invention.
Test example 2 herbicidal compositions of the present invention are to the preventive effect of broad leaved weed and grassy weed
In the greenhouse, adopt method for potted to measure the preventive effect of the present composition to broad leaved weed and grassy weed.
Test method: adopt the greenhouse pot culture method, 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 N, P, the aqueous solution of K composite fertilizer, treat 4～6 leaf phases of broad leaved weed, grassy weed grows to 2～5 leaves during the phase, carrying out the cauline leaf spraying with crawler type crop sprayer handles, each processed group dosing (being the effective active dose of components) is as shown in table 2, handle being placed on greenhouse continuation cultivation observation after 3 hours, check the herbicidal effect of each processing after 20 days.The result is as shown in table 2.
Table 2 penoxsuam, metamifop and the present composition are to the preventive effect of broad leaved weed and grassy weed
As can be seen from Table 2, the composite back of penoxsuam and metamifop is compared with single agent separately, to weeds particularly the preventive effect of broad leaved weeds such as Commelina communis etc. be significantly improved, grass family class weeds such as barnyard grass grass also there are obvious synergistic effect, reach the purpose of preventing and kill off broad leaved weed and grassy weed simultaneously.
Conclusion:
1. preventive effect was lower when metamifop used separately in this test, with penoxsuam composite after, preventive effect obviously improves, as seen, the herbicidal effect of the more single agent of herbicidal composition of the present invention significantly improves, the anti-grass that has enlarged single agent is composed.
2. embodiments of the invention 1-27 prepares according to different ratios, and the ratio of two active ingredients all has good control efficiency to above-mentioned broad leaved weed and grassy weed in the mixture in above-mentioned scope, and maximum can reach 100%.
3. preferred penoxsuam belongs to sulfonylurea in the weed killer herbicide of the present invention, action target at plant corpus is acetolactate synthestase (ALS) inhibitor, and metamifop is fragrant phenoxy esters of gallic acid weed killer herbicide, action target in plant corpus is acetylcholinesterase (ACCase) inhibitor, both action sites are significantly different, according to existing resistance generation theory of development as can be known, the generation and the development of herbicidal composition energy delaying drug resistance of the present invention.
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 (10)
1. a herbicidal composition is characterized in that, described herbicidal composition contains the active component of following weight portion:
Penoxsuam 0.1～33
Metamifop 0.1～99.
2. herbicidal composition according to claim 1 is characterized in that, described herbicidal composition contains the active component of following weight portion:
Penoxsuam 1～10
Metamifop 1～30.
3. herbicidal composition according to claim 1 and 2 is characterized in that, the weight percentage of described active component in herbicidal composition is 0.1～96%; Except that active component, described herbicidal composition also contains at least two kinds of carriers, and at least a in the described carrier is surfactant, and preferably, described surfactant is selected from one or more in emulsifier, dispersant and the wetting agent.
4. herbicidal composition according to claim 3 is characterized in that described herbicidal composition also contains the preparation used additives; Described auxiliary agent is selected from one or more in solvent, thickener, antifreezing agent and the defoamer.
5. herbicidal composition according to claim 4, it is characterized in that, the formulation of described herbicidal composition is a missible oil, described missible oil is consisting of of percentage by weight: active component 0.1～96%, surfactant 1～30%, solvent complement to 100%, and described solvent is aromatic hydrocarbon solvent or alcohols solvent.
6. herbicidal composition according to claim 4, it is characterized in that, the formulation of described herbicidal composition is an aqueous emulsion, described aqueous emulsion is consisting of of percentage by weight: active component 0.1～96%, emulsifier 1～30%, thickener 0.1～5%, antifreezing agent 1～20%, solvent 1～30%, water complement to 100%, and described solvent is aromatic hydrocarbon solvent or alcohols solvent.
7. herbicidal composition according to claim 4, it is characterized in that, the formulation of described herbicidal composition is an aqueous suspension agent, and described aqueous suspension agent is consisting of of percentage by weight: active component 0.1～96%, dispersant 1～30%, wetting agent 1～30%, antifreezing agent 1～20%, thickener 0.1～5%, defoamer 0.1～5%, emulsifier 1～30%, water complement to 100%.
8. herbicidal composition according to claim 4, it is characterized in that, the formulation of described herbicidal composition is an oil-suspending agent, and described oil-suspending agent is consisting of of percentage by weight: active component 0.1～96%, dispersant 1～30%, wetting agent 0.1～30%, thickener 0.1～10%, defoamer 0.1～5%, emulsifier 1～30%, oil complement to 100%.
9. herbicidal composition according to claim 4, it is characterized in that, the formulation of described herbicidal composition is wetting powder, water dispersible granules, soluble powder or soluble granula, and the described formulation composition of percentage by weight is: active component 0.1～96%, wetting agent 1～20%, dispersant 1～20%, other carriers complement to 100%.
10. the application of each described herbicidal composition of claim 1-9 in control annual and perennial broad leaved weed of paddy field and grassy weed.
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| CN104839178A (en) * | 2015-04-20 | 2015-08-19 | 济南科赛基农化工有限公司 | Weeding composition containing metamifop and florasulam |
| CN105432632A (en) * | 2015-11-30 | 2016-03-30 | 浙江新农化工股份有限公司 | Weeding composition containing pyriminobac-methyl, penoxsulam and metamifop and preparation and application thereof |
| CN107232211A (en) * | 2017-07-14 | 2017-10-10 | 安徽金农康农药检测有限公司 | A kind of penoxsuam is He metamifop compounds dispersible oil-suspending agent and preparation method thereof |
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