CN103828816B - Mixed herbicide containing fenoxaprop-p-ethyl, clodinafop-propargyl and fluroxypyr - Google Patents
Mixed herbicide containing fenoxaprop-p-ethyl, clodinafop-propargyl and fluroxypyr Download PDFInfo
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- CN103828816B CN103828816B CN201410065648.7A CN201410065648A CN103828816B CN 103828816 B CN103828816 B CN 103828816B CN 201410065648 A CN201410065648 A CN 201410065648A CN 103828816 B CN103828816 B CN 103828816B
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Abstract
The invention belongs to the technology field of pesticide and discloses a mixed herbicide containing fenoxaprop-p-ethyl, clodinafop-propargyl and fluroxypyr. The herbicide takes fenoxaprop-p-ethyl, clodinafop-propargyl and fluroxypyr as main effective ingredients, wherein the mass ratio of fenoxaprop-p-ethyl to clodinafop-propargyl to fluroxypyr is (80-98):(0.1-10):(0.1-10). The invention also discloses application of the mixed herbicide to weeding in a paddy field. The mixed herbicide has broad weeding spectrum through mixture of weed killers, so as to improve the weeding effect; the mixed herbicide has the advantages of having quick effect, long lasting period, thorough weeding effect, low residue, low toxicity, safety, environment protection and the like and having capability of delaying pesticide resistance of the herbicide, and has prominent prevention and control effects on grassy weeds, broad leaf weeds, sedge weeds in the paddy field such as Alternanthera philoxeroides, amur foxtail and difformed galingale herbs.
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 Han fenoxaprop, clodinafop-propargyl and fluroxypyr.
Background technology
Fenoxaprop (fenoxaprop-ethyl), belong to heterocyclic oxy group phenoxy propionic acid class weed killer herbicide, have another name called prestige despot, galloping horse, chemical name: (R)-2-[4-(chloro-1, the 3-benzoxazole-2-oxygen base of 6-) phenoxy group] ethyl propionate.Fenoxaprop is selectivity inner sucting conduction type herbicide after seedling, mainly by suppressing key enzyme one acetyl-CoA carboxylase of fatty acid synthesis, thus inhibits the synthesis of fatty acid.Medicament is by cauline leaf Assimilation and conductivity to the growing point of meristematic tissue and root, and effect rapidly, stops growing for after dispenser 2-3 days, 5-6 days lobus cardiacus chlorosis purpling looks, and make meristematic tissue browning look, blade is withered gradually, is the extremely strong cauline leaf inorganic agent of selectivity.In addition, this medicament changes rapidly benzene oxygen into from propionic acid after contact soil, and is decomposed into non-activity material further, thus to succession crop safety, resolves into the metabolite of non-activity and detoxify in drug resistance crop.Can be used for wheat paddock after adding safener fenchlorazole and prevent and kill off grassy weed.
Clodinafop-propargyl (Clodinafop-propargyl), have another name called wheat pole, chemical name: (R)-2-[4-(the chloro-3-of 5-fluoro-2-pyridine oxygen base) phenoxy group] propionic acid propynyl ester, belong to fragrant phenoxy phenoxy propionic acid weed killer herbicide, effectively can suppress the biosynthesis of class ester, for the auxiliary quick A hydroxylase inhibitors of acetyl, it is cauline leaf inorganic agent after selectivity inner sucting conduction type seedling.Medicament conducts meristematic tissue by plant leaf blade, leaf sheath after absorbing, and suppresses acetyl-CoA carboxylase, thus suppresses fatty acid biological synthesis, finally causes weeds dead.Resistance makes the metabolite resolving into non-activity in object.This product is degraded to free acid phenyl very soon in soil and pyridine moiety enters soil.In addition, clodinafop-propargyl in use must be mixed with safener, wherein clodinafop-propargyl and safener-cloquintocetmexyl or cloquitocet_mexyl etc. mix with 4:1 and support the use, be applied to wheat paddock weeding, the grassy weeds such as wheat vole tail amur foxtail, tall oat grass, perennial ryegrass, rough stalked blue grass, green foxtail can be prevented and treated.But clodinafop-propargyl is invalid to broad leaved weed, herbicidal spectrum is narrow, makes it be restricted in use.
Fluroxypyr (fluroxypyr), has another name called: fluorine grass is fixed, make that it is grand, control green bristlegrass spirit, molecular formula: C
15h
21cl
2fN
2o
3, the fluoro-2-pyridine of amino-3, the 5-bis-chloro-6-of chemical name: 4--2-pyridine fluoroacetic acid.Fluroxypyr inner sucting conduction type herbicide after seedling.Be absorbed by plants very soon after medicine, make sensitive plant occur the reaction of classical hormones class weed killer herbicide, plant deformity, distortion.Drug resistance plant as in wheat body, fluroxypyr can be combined into conjugates and lose toxicity, thus has selectivity.Cereal crop uses optimum period wider, can be used for the ground such as wheat, barley, corn, grape and orchard, pasture, forest farm and prevent and kill off broad leaved weed, as weeds such as clearvers, field bindweed, shepherd's purse, chickweed, volume stem amaranth, kitchen gardens, invalid to grassy weed.Temperature on the final effect of its weeding without impact, but affect its drug effect play speed.Generally when temperature is low, drug effect plays comparatively slow, stops growing after can making dunsiekte, but dead immediately; After temperature raises, plant is very fast dead.In soil, leaching is not remarkable, and major part is distributed in 0-10 centimetre of topsoil, and under the condition of aerobic, be degraded into the non-poisonous materials such as 2-pyridine alcohol very soon in the effect of edaphon, in soil, the half life period is shorter, can not have an impact to lower stubble broad leaf crop.
Along with the modernization development of agricultural, peasant also uses high-tech product in a large number in agricultural production, a series of chemical products extensive use such as biopesticide, Pesticidal composition, wherein most popular Pesticidal products is weed killer herbicide, and the sales volume of weed killer herbicide comes foremost always in agricultural chemicals.Weed killer herbicide is wide in variety in the market, and simultaneously application technology also requires high, careless slightly in the application, and the problems such as poisoning, herbicidal effect be bad will occur.Weed killer herbicide is selected and improperly will directly be affected safety or the output of people or seedlings of cereal crops plant.Along with the development of weeding technique and the continuous appearance of weed killer herbicide, the many weeds in farmland are then more and more difficult to kill.
Summary of the invention
The object of this invention is to provide the mixed herbicide of a kind of Han fenoxaprop, clodinafop-propargyl and fluroxypyr.
The mixed herbicide of a kind of Han fenoxaprop, clodinafop-propargyl and fluroxypyr, this weed killer herbicide Yi fenoxaprop, clodinafop-propargyl and fluroxypyr are principle active component, and the mass ratio of described fenoxaprop, clodinafop-propargyl and fluroxypyr is 80 ~ 98:0.1 ~ 10:0.1 ~ 10.
The mixed herbicide of Han fenoxaprop of the present invention, clodinafop-propargyl and fluroxypyr, the mass ratio of described fenoxaprop, clodinafop-propargyl and fluroxypyr is preferably 80 ~ 95:0.5 ~ 10:0.5 ~ 10, more preferably 80 ~ 90:1 ~ 10:1 ~ 8.
Described fluroxypyr exists with the form of methyl esters or different monooctyl ester.
In the ternary built preparation of fenoxaprop of the present invention, clodinafop-propargyl and fluroxypyr, except three kinds of active ingredients, the auxiliary agent that agricultural chemicals allows can also be added, be mixed with any one formulation.Preferably be processed into the multiple formulations such as wetting powder, water dispersion granule, suspending agent, suspension emulsion, microemulsion, aqueous emulsion, missible oil.
Described insecticides adjuvant comprises: dispersant, wetting agent, disintegrant, emulsifier, antifreezing agent, defoamer, thickener, filler, organic solvent, water.
Described dispersant be selected from alkylnaphthalene sulfonate, naphthalene sulfonic acid-formaldehyde condensation product, octylphenol polyethylene oxyethylene group ether sulfate, polycarboxylate, lignosulfonates, alkylaryl APEO, aliphatic alcohol polyethenoxy base ether, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate etc. one or more.
Described wetting agent is selected from: one or more in lauryl sodium sulfate, neopelex, Nekal BX, spaonin powder, soapberry powder etc.
Described disintegrant is selected from: one or more in sodium bicarbonate, sodium carbonate, bentonite, urea, ammonium sulfate, glucose, aluminium chloride etc.
Described thickener is selected from: medium one or more of CMC, sodium cellulose glycolate, hydroxyethylcellulose, Magnesiumaluminumsilicate, gelatin, melon glue, gum Arabic, xanthans, sodium phosphate trimer, phenolic resins, sodium alginate, white dextrin, methylcellulose, PAA, polyvinylpyrrolidone, crospolyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol.
Described antifreezing agent is selected from: one or more in glycerine, ethylene glycol, propane diols, glycerine, diethylene glycol (DEG), triethylene glycol, polyethylene glycol etc.
Described organic solvent is selected from: in DMF, 3-methyl cyclohexanol ketenes, NOP, N-pyrrolidones, toluene, propyl alcohol, cyclohexanone, acetone, methyl alcohol, ethanol, butanols, ethylene glycol monomethyl ether, butyl ether, ethyl acetate, vegetable oil, acetonitrile etc. one or more.
Described defoamer is selected from: silicone defoamer, C
8 ~ 10aliphatic alcohols, C
10 ~ 20one or more in saturated fat acids (as capric acid) and acid amides, silicone oil, silicone compound.
Described emulsifier is selected from: agriculture breast 500# (alkyl benzene calcium sulfonate), OP series phosphate (thermally coupled distillation columns), 600# phosphate (phenyl phenol polyoxyethanyl ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, agriculture breast 400# (benzyl dimethyl phenol polyoxyethyl ether), agriculture breast 600# (phenyl phenol polyoxyethyl ether), Nongru-700 # (alkylphenol-formaldehyde resin polyoxyethyl ether), agriculture breast 36# (phenethyl fluosite polyoxyethyl ether), agriculture breast 1600# (phenethyl phenol polyoxyethanyl polypropylene-base ether), ethylene oxide-propylene oxide block copolymer, OP series (polyoxyethylene nonylphenol ether), By series (castor oil polyoxyethylene ether), agriculture breast 33# (alkylaryl polyoxyethylene polyoxypropylene ether), agriculture breast 34# (alkylaryl polyoxyethylene poly-oxygen propylene aether), Span series, TWEEN Series, one or more in AEO series (fatty alcohol-polyoxyethylene ether) etc.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate etc.
Herbicidal combinations of the present invention, comprises following constituent content: fenoxaprop 80 ~ 98%, clodinafop-propargyl 0.1 ~ 10%, fluroxypyr 0.1 ~ 10%, dispersant 1 ~ 5%, wetting agent 1 ~ 8%, filler surplus when making wetting powder.
Herbicidal combinations of the present invention, comprises following constituent content: fenoxaprop 80 ~ 98%, clodinafop-propargyl 0.1 ~ 10%, fluroxypyr 0.1 ~ 10%, dispersant 1 ~ 10%, wetting agent 1 ~ 8%, disintegrant 0.5 ~ 10%, filler surplus when making water dispersible granules.
Herbicidal combinations of the present invention, following constituent content: fenoxaprop 80 ~ 98% is comprised when making suspending agent, clodinafop-propargyl 0.1 ~ 10%, fluroxypyr 0.1 ~ 10%, dispersant 1 ~ 10%, thickener 0.1 ~ 2%, defoamer 0.1 ~ 1%, antifreezing agent 0.1 ~ 8%, deionized water adds to 100%.
Herbicidal combinations of the present invention, following constituent content: fenoxaprop 80 ~ 98%, clodinafop-propargyl 0.1 ~ 10%, fluroxypyr 0.1 ~ 10%, dispersant 1 ~ 10%, emulsifier 1 ~ 10% is comprised when making suspension emulsion, defoamer 0.1 ~ 2%, thickener 0.1 ~ 2%, antifreezing agent 0.1 ~ 8%, deionized water adds to 100%.
Herbicidal combinations of the present invention, comprise: fenoxaprop 80 ~ 98%, clodinafop-propargyl 0.1 ~ 10%, fluroxypyr 0.1 ~ 10%, organic solvent 1 ~ 20%, emulsifier 1 ~ 10%, defoamer 0.01 ~ 1%, thickener 0.1 ~ 2%, antifreezing agent 1 ~ 4% when making microemulsion, deionized water adds to 100%.
Herbicidal combinations of the present invention, comprises: fenoxaprop 80 ~ 98%, clodinafop-propargyl 0.1 ~ 10%, fluroxypyr 0.1 ~ 10%, organic solvent 1 ~ 20%, emulsifier 1 ~ 8%, antifreezing agent 1 ~ 4%, defoamer 0.01 ~ 1%, thickener 0.2 ~ 2%, deionized water adds to 100% when making aqueous emulsion.
" % " of the present invention is mass percentage.
Another object of the present invention is to provide the application of this mixed herbicide in agent for removing grass in paddy field.
Mixed herbicide of the present invention is preventing and kill off the application in paddy field grassy weed, broad leaved weed and sedge weed, has remarkable result preventing and kill off the application in paddy field alternanthera philoxeroides, amur foxtail, difformed galingale herb, barnyard grass, clearvers, short arrowhead, moleplant seed, needle spikesedge herb, mexicana, four leaf duckweeds.
Compared with prior art, the beneficial effect of Herbicidal combinations of the present invention:
Mixed herbicide of the present invention expands herbicidal spectrum by the mixed of weed killer herbicide, improve herbicidal effect, there is instant effect, the lasting period is long, delay herbicide resistance, weeding thoroughly, the advantage such as residual low, low toxicity, safety and environmental protection, be the paddy field chemical herbicide of high-quality, paddy field grass family, sedge family, broad leaved weed class such as grassy weed, broad leaved weed and the sedge weed control efficiency such as alternanthera philoxeroides, amur foxtail, difformed galingale herb, barnyard grass, short arrowhead, moleplant seed, needle spikesedge herb, mexicana, four Ye Ping are given prominence to.
Embodiment
Embodiment 195% fenoxaprop-clodinafop-propargyl-fluroxypyr wetting powder
Fenoxaprop 90%, clodinafop-propargyl 1%, fluroxypyr 4%, sodium lignin sulfonate 2%, neopelex 1%, kaolin add to 100%, i.e. obtained 95% fenoxaprop-clodinafop-propargyl-fluroxypyr wetting powder.Wherein fluroxypyr exists with different monooctyl ester form.
Jiang fenoxaprop, clodinafop-propargyl, fluroxypyr, dispersant (sodium lignin sulfonate), wetting agent (neopelex), filler (kaolin) mixing, mix in mixed cylinder, mix again after airslide disintegrating mill is pulverized, namely can be made into wetting powder product of the present invention.
Embodiment 285% fenoxaprop-clodinafop-propargyl-fluroxypyr water dispersible granules
Fenoxaprop 80%, clodinafop-propargyl 4%, fluroxypyr 1%, aliphatic alcohol polyethenoxy base ether 5%, spaonin powder 4%, ammonium sulfate 2%, diatomite add to 100%, obtained 85% fenoxaprop-clodinafop-propargyl-fluroxypyr water dispersible granules.Wherein fluroxypyr exists with different monooctyl ester form.
Fenoxaprop, clodinafop-propargyl, fluroxypyr, dispersant (aliphatic alcohol polyethenoxy base ether), wetting agent (spaonin powder), disintegrant (ammonium sulfate), filler (diatomite) etc. are obtained together the particle diameter needed through air-flow crushing, obtain granulation materials.Item is quantitatively sent in fluidized bed granulating dryer through granulating and after drying, obtaining water dispersible granules product of the present invention.
Embodiment 392% fenoxaprop-clodinafop-propargyl-fluroxypyr suspending agent
Fenoxaprop 80%, clodinafop-propargyl 10%, fluroxypyr 2%, sodium lignin sulfonate 5%, Magnesiumaluminumsilicate 1%, C
10 ~ 20saturated fat acids 0.3%, polyethylene glycol 2.5%, water adds to 100%, obtained 92% fenoxaprop-clodinafop-propargyl-fluroxypyr suspending agent.Wherein fluroxypyr exists with different monooctyl ester form.
By dispersant (sodium lignin sulfonate), thickener (Magnesiumaluminumsilicate), defoamer (C in above-mentioned formulation material
10 ~ 20saturated fat acids), antifreezing agent (polyethylene glycol) mixes through high speed shear, add fenoxaprop, clodinafop-propargyl, fluroxypyr, ball milling 2 ~ 3 hours in ball mill, makes diameter of particle all below 5 μm, obtained suspending agent product of the present invention.
Embodiment 496% fenoxaprop-clodinafop-propargyl-fluroxypyr suspension emulsion
Fenoxaprop 86%, clodinafop-propargyl 2%, fluroxypyr 8%, lignosulfonates 1%, fatty alcohol-polyoxyethylene ether 1%, silicone oil 0.5%, xanthans 0.1%, propane diols 0.5%, water adds to 100%, aforementioned formula material is mixed, i.e. obtained 96% fenoxaprop-clodinafop-propargyl-fluroxypyr suspension emulsion.Wherein fluroxypyr exists with methyl ester form.
Dispersant (sodium lignin sulfonate), defoamer (silicone oil), thickener (xanthans), antifreezing agent (propane diols) in above-mentioned formulation material are mixed through high speed shear, add clodinafop-propargyl, fluroxypyr, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μm, obtained clodinafop-propargyl-fluroxypyr suspending agent, then Jiang fenoxaprop, emulsifier (fatty alcohol-polyoxyethylene ether) with the direct emulsification of high speed agitator in clodinafop-propargyl suspending agent, obtained suspension emulsion product of the present invention.
Embodiment 590% fenoxaprop-clodinafop-propargyl-fluroxypyr microemulsion
Fenoxaprop 83%, clodinafop-propargyl 5%, fluroxypyr 2%, toluene 2%, 3-methyl cyclohexanol ketenes 3%, agriculture breast 500#1%, C
8 ~ 10aliphatic alcohols 0.2%, sodium cellulose glycolate 0.5%, diethylene glycol (DEG) 2%, water supplies 100%, obtained 90% fenoxaprop-clodinafop-propargyl-fluroxypyr microemulsion.Wherein fluroxypyr exists with different monooctyl ester form.
Fenoxaprop, clodinafop-propargyl and fluroxypyr are dissolved in the reactor that organic solvent (toluene, 3-methyl cyclohexanol ketenes) is housed; By emulsifier (agriculture breast 500#), defoamer (C
8 ~ 10aliphatic alcohols), antifreezing agent (diethylene glycol (DEG)), thickener (sodium cellulose glycolate), water joins and to give strong mixing after in the reactor that above-mentioned solution is housed and homogenize, finally obtains the microemulsion product of the present invention that clear appearance is transparent.
Embodiment 692% fenoxaprop-clodinafop-propargyl-fluroxypyr aqueous emulsion
Fenoxaprop 87%, clodinafop-propargyl 2%, fluroxypyr 3%, toluene 3%, cyclohexanone 1%, 600# phosphate 1%, ethylene glycol 1%, xanthans 0.5%, silicone oil 0.2%, water is mended to 100%, obtained 92% fenoxaprop-clodinafop-propargyl-fluroxypyr aqueous emulsion.Wherein fluroxypyr exists with methyl ester form.
Fenoxaprop, clodinafop-propargyl, fluroxypyr, organic solvent (toluene, cyclohexanone), emulsifier (600# phosphate) in formula are added together, are dissolved into homogeneous oil phase; Water, antifreezing agent (ethylene glycol), defoamer (silicone oil), thickener (xanthans) are mixed, becomes homogeneous aqueous phase; Under high velocity agitation, aqueous phase is added oil phase or oil phase is added aqueous phase, obtained aqueous emulsion product of the present invention after good dispersion.
Embodiment 795% fenoxaprop-clodinafop-propargyl-fluroxypyr suspending agent
Fenoxaprop 92%, clodinafop-propargyl 2%, fluroxypyr 1%, alkyl benzene sulfonate calcium salt 2%, sodium alginate 0.5%, silicone defoamer 0.1%, diethylene glycol (DEG) 2%, deionized water adds to 100%, the obtained 95% fenoxaprop-clodinafop-propargyl-fluroxypyr suspending agent of mixing.Wherein fluroxypyr exists with different monooctyl ester form.
Embodiment 897% fenoxaprop-clodinafop-propargyl-fluroxypyr water dispersible granules
Fenoxaprop 95%, clodinafop-propargyl 1.5%, fluroxypyr 0.5%, polycarboxylate 1%, soapberry powder 1%, ammonium sulfate 0.8%, white carbon adds to 100%, obtained 97% fenoxaprop-clodinafop-propargyl-fluroxypyr water dispersible granules.Wherein fluroxypyr exists with methyl ester form.
Embodiment 981% fenoxaprop-clodinafop-propargyl-fluroxypyr wetting powder
Clodinafop-propargyl 80%, clodinafop-propargyl 0.5%, fluroxypyr 0.5%, sodium lignin sulfonate 5%, lauryl sodium sulfate 5%, bentonite adds to 100%, i.e. obtained 81% fenoxaprop-clodinafop-propargyl-fluroxypyr wetting powder.Wherein fluroxypyr exists with methyl ester form.
Embodiment 1090% fenoxaprop-clodinafop-propargyl-fluroxypyr aqueous emulsion
Fenoxaprop 83%, clodinafop-propargyl 5%, fluroxypyr 2%, toluene 3%, cyclohexanone 2%, 600# phosphate 2%, ethylene glycol 1%, gum Arabic 0.4%, silicone oil 0.2%, water is mended to 100%, obtained 90% fenoxaprop-clodinafop-propargyl-fluroxypyr aqueous emulsion.Wherein fluroxypyr exists with different monooctyl ester form.
Embodiment 1187% fenoxaprop-clodinafop-propargyl-fluroxypyr microemulsion
Fenoxaprop 81%, clodinafop-propargyl 1%, fluroxypyr 5%, toluene 3%, 3-methyl cyclohexanol ketenes 4%, agriculture breast 500#3%, C
8 ~ 10aliphatic alcohols 0.2%, hydroxyethylcellulose 0.6%, diethylene glycol (DEG) 1%, water supplies 100%, obtained 87% fenoxaprop-clodinafop-propargyl-fluroxypyr microemulsion.Wherein fluroxypyr exists with different monooctyl ester form.
Embodiment 1285% fenoxaprop-clodinafop-propargyl-fluroxypyr suspension emulsion
Fenoxaprop 80.5%, clodinafop-propargyl 4%, fluroxypyr 0.5%, sodium lignin sulfonate 4%, fatty alcohol-polyoxyethylene ether 6%, silicone oil 0.5%, melon glue 0.4%, propane diols 2.5%, water adds to 100%, aforementioned formula material is mixed, i.e. obtained 85% fenoxaprop-clodinafop-propargyl-fluroxypyr suspension emulsion.Wherein fluroxypyr exists with different monooctyl ester form.
Embodiment 13
1, toxicity determination test
Test objective: fenoxaprop, clodinafop-propargyl, fluroxypyr and different blended combo thereof close the herbicidal effect to alternanthera philoxeroides Xia greenhouse pot culture condition, and have rated its synergy.
Test method: survey object as raw using alternanthera philoxeroides, select and do not use weed killer herbicide, pH6.8 soil, after air-dry for soil sieving, load in the polypots of high 6cm, diameter 9cm, 20 seeds sowed by every basin, be placed in greenhouse and cultivate after the fine earth that lid 0.5 ~ 1cm is thick, treat that weeds grew to for 2 ~ 4 leaf phases and adopt potted plant cauline leaf facture (NY/T1155.4-2006), every alms bowl spraying liquid 1mL, often processes repetition 4 times, and sets the process not containing medicament as contrasting.After process, examination material is placed in greenhouse and cultivates, and the growing state of routine observation target weeds, estimates target damage symptoms and growth inhibition situation after 20d, and claims acrial part fresh weight or strain fresh weight, evaluates medicament to the toxicity action of target weeds with target fresh weight inhibition.Concrete grammar is with reference to NY/T1155.4-2006 farm-chemical indoor determination test rule weed killer herbicide the 4th part: active determination test cauline leaf spray-on process is tested, and often processes 4 times and repeats, often repeat 20 strains, if be not treated to blank containing medicament.Ternary built synergy evaluation method is with reference to the Colby method in the synergy mensuration of NY/T1155.7-2006 farm-chemical indoor determination test rule weed killer herbicide the 7th part mixture.
The actual preventive effect E of weeds of single dose and each mixture is according to following formulae discovery:
E=(Ck-Pt)/Ck × 100; In formula, Ck is the weeds fresh weight after the dispenser of blank district; Pt is the weeds fresh weight after chemicals treatment.
The theoretical preventive effect of mixture is according to following formulae discovery:
E
0=X × Y × Z/100
2; In formula, X is fenoxaprop weeds weight under certain dosage is the percentage contrasting weeds weight; Y is clodinafop-propargyl weeds weight under certain dosage is the percentage contrasting weeds weight; Z is 2 fluroxypyrs weeds weight under certain dosage is the percentage contrasting weeds weight.
Work as E
0synergistic effect is expressed as, as-10% < E during-E>=10%
0be expressed as summation action during-E < 10%, work as E
0antagonism is expressed as during-E≤-10%.
The results are shown in Table 1.
Table 1 fenoxaprop, clodinafop-propargyl and fluroxypyr weed killer herbicide are to the Toxicity Determination of alternanthera philoxeroides
Evaluating drug effect: fenoxaprop, clodinafop-propargyl, fluroxypyr and mixture composition thereof all show as synergistic effect in table 1 ， fenoxaprop, clodinafop-propargyl and fluroxypyr ternary recompounded composite to alternanthera philoxeroides to the herbicidal effect measurement result of alternanthera philoxeroides.
2, field control effectiveness test
Reagent agent: 6 kinds of ternary built weed killer herbicides in embodiment 1 ~ 6.
Contrast medicament: 6.9% fenoxaprop aqueous emulsion (commercially available), 24% clodinafop-propargyl missible oil (commercially available), 20% fluroxypyr missible oil (commercially available).
Control crop: paddy rice.
Prevent and kill off object: grassy weed, broad leaved weed and the sedge weeds such as alternanthera philoxeroides, amur foxtail, difformed galingale herb, barnyard grass, clearvers, short arrowhead, moleplant seed, needle spikesedge herb, mexicana, four Ye Ping.
Test method: according to the area of experimental plot, the good various medicament of precise, and after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head that sprinkler selection weed killer herbicide is special.During spraying, liquid be noted evenly to spray application in experimental plot, accomplish the phenomenon not having drain spray, many sprays.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicament.In addition, after medicine, the growing state of crop also in 1 ~ 15d, to be observed, whether have poisoning to investigate medicament to crop.
Embodiments of the invention preparation Herbicidal Testing Trials effect sees the following form 20d after 2(medicine) and table 3(medicine after 40d)
Table 2 field control effectiveness test result (after medicine 20d)
Table 3 field control effectiveness test result (after medicine 40d)
Table 4 medicament is to the security survey result of crop
Can find out that the present invention improves overall preventive effect by three kinds of pesticide activity component conbined usage from table 2, table 3, drug effect plays also than comparatively fast, the herbicide of mixed herbicide of the present invention is composed further expand, achieve significant synergy preventing and kill off in grassy weed, broad leaved weed and sedge weed.Mixed herbicide medication of the present invention simultaneously is obviously better than the control efficiency that three kinds of agricultural chemicals are used alone with drug effect after 40 days after 10 days.It is more lasting that this shows that mixed herbicide of the present invention not only acts on, and not easily make weeds especially malignant weed develop immunity to drugs.
As can be seen from Table 4, the paddy rice in each community of mixed herbicide of the present invention all grows fine, and has no any medicine spot, illustrates that the mixed herbicide of variable concentrations is all safe to paddy rice.Mixed herbicide of the present invention is easily degraded, and to rice safety, has no side effect; In soil, residual life, is short, to succession crop safety.
Claims (7)
1. the mixed herbicide containing fenoxaprop, clodinafop-propargyl and fluroxypyr, it is characterized in that this weed killer herbicide Yi fenoxaprop, clodinafop-propargyl and fluroxypyr are active ingredient, the mass ratio of described fenoxaprop, clodinafop-propargyl and fluroxypyr is 80 ~ 98:0.1 ~ 10:0.1 ~ 10.
2. mixed herbicide according to claim 1, is characterized in that the mass ratio of described fenoxaprop, clodinafop-propargyl and fluroxypyr is 80 ~ 95:0.5 ~ 10:0.5 ~ 10.
3. mixed herbicide according to claim 2, is characterized in that the mass ratio of described fenoxaprop, clodinafop-propargyl and fluroxypyr is 80 ~ 90:1 ~ 10:1 ~ 8.
4. mixed herbicide according to claim 1, it is characterized in that described mixed herbicide Yi fenoxaprop, clodinafop-propargyl and fluroxypyr are mixed with any one formulation for the auxiliary agent that active ingredient and agricultural chemicals allow, described formulation is wetting powder, water dispersion granule, suspending agent, suspension emulsion, microemulsion, aqueous emulsion, missible oil.
5. the application of mixed herbicide according to claim 1 in the postemergence weed control of paddy rice.
6. mixed herbicide according to claim 1 is preventing and kill off the application in paddy field grassy weed, broad leaved weed and sedge weed.
7. mixed herbicide according to claim 1 is preventing and kill off the application in paddy field alternanthera philoxeroides, amur foxtail, difformed galingale herb, barnyard grass, clearvers, short arrowhead, moleplant seed, needle spikesedge herb, mexicana, four leaf duckweeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410065648.7A CN103828816B (en) | 2014-02-26 | 2014-02-26 | Mixed herbicide containing fenoxaprop-p-ethyl, clodinafop-propargyl and fluroxypyr |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065648.7A CN103828816B (en) | 2014-02-26 | 2014-02-26 | Mixed herbicide containing fenoxaprop-p-ethyl, clodinafop-propargyl and fluroxypyr |
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| CN103828816A CN103828816A (en) | 2014-06-04 |
| CN103828816B true CN103828816B (en) | 2015-02-11 |
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| CN201410065648.7A Active CN103828816B (en) | 2014-02-26 | 2014-02-26 | Mixed herbicide containing fenoxaprop-p-ethyl, clodinafop-propargyl and fluroxypyr |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126598B (en) * | 2014-08-25 | 2016-09-07 | 河南远见农业科技有限公司 | A kind of herbicide composition for wheat field and application |
| CN106359401A (en) * | 2016-08-26 | 2017-02-01 | 安徽久易农业股份有限公司 | Fenoxaprop-p-ethyl and fluroxypyr-containing water dispersible granule |
| CN108308185A (en) * | 2018-05-16 | 2018-07-24 | 安徽省四达农药化工有限公司 | A kind of composition containing fenoxaprop and the different monooctyl ester of fluroxypyr and application |
| CN111732553B (en) * | 2020-06-18 | 2022-08-05 | 江苏富鼎化学有限公司 | Method for synthesizing herbicide fenoxaprop-p-ethyl |
| CN112471144A (en) * | 2020-12-28 | 2021-03-12 | 安徽兴隆化工有限公司 | Processing technology of clodinafop-propargyl microemulsion |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007006416A2 (en) * | 2005-07-07 | 2007-01-18 | Bayer Cropscience Ag | Cultigen-compatible herbicidal agents containing herbicides and acylsulfamoylbenzamide safeners |
| CN101700023A (en) * | 2009-10-21 | 2010-05-05 | 张志高 | Clodinafop-propargyl and fenoxaprop-p-ethyl herbicide composition |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007006416A2 (en) * | 2005-07-07 | 2007-01-18 | Bayer Cropscience Ag | Cultigen-compatible herbicidal agents containing herbicides and acylsulfamoylbenzamide safeners |
| CN101700023A (en) * | 2009-10-21 | 2010-05-05 | 张志高 | Clodinafop-propargyl and fenoxaprop-p-ethyl herbicide composition |
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