CN104604916A - Weeding composition containing pinoxaden - Google Patents
Weeding composition containing pinoxaden Download PDFInfo
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- CN104604916A CN104604916A CN201510050460.XA CN201510050460A CN104604916A CN 104604916 A CN104604916 A CN 104604916A CN 201510050460 A CN201510050460 A CN 201510050460A CN 104604916 A CN104604916 A CN 104604916A
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Abstract
The invention discloses a weeding composition containing pinoxaden. The weeding composition comprises the following effective components in percentage by weight: 1%-10% of mesosulfuron, 2%-10% of pinoxaden and 2%-30% of clodinafop-propargyl. The composition disclosed by the invention can be prepared into agriculturally permitted suspending agent, water dispersible granule, wettable powder or dispersible oil suspending agent. The composition disclosed by the invention is reasonable in component screening, and has a significant synergistic effect; the weed control spectrum is expanded; the medication cost is reduced; the safety on wheat is good; the prevention and treatment effects on the weeds in a wheat paddock are improved; and the weeding composition is especially suitable for preventing and removing gramineous weeds, such as amur foxtail, alopecurus japonicas, sclerochloa dura, chlorsulflon, bluegrass or aegilops tauschii, in a cornfield.
Description
Technical field
The invention belongs to technical field of compounded pesticide, relate to a kind of Wheat field weeding composition, particularly a kind of with mesosulfuron, azoles quinoline grass ester and the clodinafop-propargyl Wheat field weeding composition that is herbicidal active component, be applicable to prevent and treat cornfield gramineae weed.
Background technology
Wheat is one of main cereal crops of China, and be rich in starch, protein, fat, mineral matter, calcium, iron etc., annual cultivated area is more than 3,000 ten thousand hm
2, be only second to the cultivated area of paddy rice.China's major part wheatland crop smothering occurs serious, and the common underproduction more than 15%, can have no harvest time serious.Cornfield gramineae weed mainly contains amur foxtail, Alopecurus, hard grass, deceives grass, annual bluegrass, Triticum tauschii, wild oat etc., and broad leaved weed mainly contains ox chickweed, shepherd's purse, clearvers etc.Due to Long-Time Service same or same class weed killer herbicide, weeds of wheat population creates serious resistance, and harm increases the weight of, and prevents and kill off more and more difficult.
Mesosulfuron, English name mesosulfuron-methyl, belongs to absorption translocated herbicide in sulfonylurea, and the cauline leaf mainly through plant absorbs, through phloem and xylem conduction, a small amount of by soil absorption, suppress the activity of the acetolactate synthestase in sensitive plant body, cause the biosynthesis block of the numerous acid of side chain ammonia, thus T suppression cell division, cause sensitive plant growth retardation, cauline leaf chlorisis, dead gradually.Generally, dispenser is after 2 ~ 4 hours, and the absorptive amount of susceptible weeds peaks, and stops growing after 2 days, and within 4 ~ 7 days, rear blade starts yellow, occurs withered spot subsequently, dead after 2 ~ 4 weeks.
The safener contained in mesosulfuron weed killer herbicide, can promote that mesosulfuron is doing to decompose rapidly in object, and does not affect its degraded in target weeds body, thus reaches the object of killing weeds, cover crop.Mesosulfuron weed killer herbicide is applicable to use in soft and semi-rigid type winter wheat variety, can prevent and kill off multiple cornfield gramineae weed.But mesosulfuron is effective to annual bluegrass, Triticum tauschii, to Alopecurus, amur foxtail, hard grass, not careless preventive effect is poor.The longevity of residure of mesosulfuron in soil is short, does not affect second stubble crop growth.
Azoles quinoline grass ester, English name pinoxaden, belongs to neophyl pyrazolines weed killer herbicide, be a kind of acetyl-CoA carboxylase (ACC) inhibitor, cause fatty acid biosynthesis block, cell division is stopped, cell membrane is destructurized containing fat, causes weeds dead.Azoles quinoline grass ester has Uptake and translocation, is mainly used in barley, wheat paddock prevents and kill off annual gramineous weed.Through field practical proof, azoles quinoline grass ester to wheat paddock amur foxtail, hard grass, to deceive careless effect better, can improve preventive effect to Alopecurus by increasing medicament usage amount, but it is poor to annual bluegrass, Triticum tauschii, bromegrass effect.
Clodinafop-propargyl, English name clodinafop-propargyl, is developed by ciba-Geigy company, belongs to fragrant phenoxy phenoxy propionic acid weed killer herbicide, effectively can suppress the biosynthesis of class ester, be a kind of is the auxiliary quick A hydroxylase inhibitors of acetyl.Clodinafop-propargyl is degraded to free acid phenyl very soon in soil and pyridine moiety enters soil.Clodinafop-propargyl is mainly used in preventing and kill off wheat paddock grassy weed, effective to wild oat, amur foxtail, to hard grass, deceive grass, annual bluegrass effect is general.Along with the enhancing of Alopecurus resistance, it to the preventive effect of Alopecurus worse and worse.
Learnt by inventor's investigation, the group of wheat paddock grassy weed distribution becomes increasingly complex, northern Mai Qu and be all mixedly send out a region along Huaihe region Mai Qu.Wherein Shaanxi, Hebei, Henan, Shandong are mainly based on wild oat, amur foxtail, Triticum tauschii, mixed of bromegrass, Jiangsu, Anhui are mainly based on hard grass, not grass, annual bluegrass, amur foxtail, mixed of Alopecurus, and popularizing along with mechanical harvesting, weed seed is more and more serious along with machinery carries out the trend propagated, the coming years grassy weed to mix the phenomenon sent out will be more general.
Mesosulfuron is effective to wheat paddock annual bluegrass, Triticum tauschii, and to Alopecurus, amur foxtail, hard grass, not careless preventive effect is poor.Azoles quinoline grass ester to wheat paddock amur foxtail, Alopecurus, hard grass, to deceive careless effect better, poor to annual bluegrass, Triticum tauschii, bromegrass effect.Clodinafop-propargyl is effective to wild oat, amur foxtail, to hard grass, deceive grass, annual bluegrass effect is general, along with resistance enhancing preventive effect worse and worse, to Alopecurus weak effect, complex preparation at present mainly as mesosulfuron and azoles quinoline grass ester uses, and plays synergistic effect.
Mesosulfuron and clodinafop-propargyl binary built preparation can well solve annual bluegrass, Triticum tauschii, wild oat, amur foxtail, but for Alopecurus, hard grass, not careless anti-heterodyne.Azoles quinoline grass ester and clodinafop-propargyl binary built preparation can well solve wild oat, hard grass, deceive grass, amur foxtail, Alopecurus, but to annual bluegrass, the anti-heterodyne of Triticum tauschii.Mesosulfuron and azoles quinoline grass ester binary built preparation can solve Triticum tauschii, annual bluegrass, amur foxtail, hard grass preferably, deceive grass, Alopecurus, but do not reach higher preventive effect for hard grass, not grass, Alopecurus, need to add the third composition clodinafop-propargyl and just can reach synergistic effect.
Find through test, no matter mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl are that single dose uses or binary built uses arbitrarily, all effectively can not solve grassy weed and mix question topic.And by composite to mesosulfurons different for the mechanism of action, azoles quinoline grass ester and clodinafop-propargyl, can significantly improve cornfield gramineae weed control efficiency, especially remarkable to annual bluegrass, firmly grass, not grass, amur foxtail, Alopecurus and Triticum tauschii synergistic effect, expand control of weeds spectrum simultaneously, delay the resistance of different weeds to single dose, reduce dosage, reduce cost accounting, high to crop safety.
Summary of the invention
Object of the present invention is intended to mix for wheat planting district grassy weed the true present situation sent out, and provides a kind of Herbicidal combinations containing azoles quinoline grass ester.This Herbicidal combinations is the ternary recompounded composite of mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl, effectively can prevent and kill off the multiple grassy weed between wheat paddock.
Above-mentioned Herbicidal combinations overcomes single use or the two composite technological deficiency any, between three kinds of herbicidal active components, there is excellent synergistic effect, and be a kind of agricultural herbicide composition to wheat safety, may be used for preventing and treating multiple cornfield gramineae weed, especially particularly outstanding to the preventive effect of the wheat paddock grassy weed such as amur foxtail, Alopecurus, hard grass, not grass, annual bluegrass or Triticum tauschii.For coordinating promoting the use of of farmland, by prior art means, compatible with suitable auxiliary agent, suspending agent, water dispersible granules, wetting powder can be prepared into or dispersible the formulations such as oil-suspending agent.
The present invention is not only preventing and kill off of wheat paddock grassy weed and provides a kind of technical scheme with practical value, has also enriched cornfield herbicidal kind.
Specifically, to achieve these goals, The present invention gives a kind of Herbicidal combinations containing azoles quinoline grass ester, comprise active ingredient mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl, wherein, the percentage by weight that mesosulfuron accounts for described composition is 1% ~ 10%, and the percentage by weight that azoles quinoline grass ester accounts for described composition is 2% ~ 10%, and the percentage by weight that clodinafop-propargyl accounts for described composition is 2% ~ 30%.
Further, the content sum of described mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl accounts for the percentage of described composition total weight is 5% ~ 50%.
As mentioned above, for the ease of using Herbicidal combinations of the present invention in field, obtaining due control of weeds effect, by Pesticide formulation mode conventional at present, the multi-form formulation agriculturally allowed can be prepared into.These formulations can be suspending agent, water dispersible granules, wetting powder or dispersible oil-suspending agent.Concerning the technical staff in preparation processing field, when preparing above-mentioned formulation, except comprising mesosulfuron, azoles quinoline grass ester with except clodinafop-propargyl three kinds of herbicidal active components, also need to use one or more auxiliary agents be suitable for.
During preparation suspending agent, available auxiliary agent comprises: dispersant as in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), TERSPERSE 2020 (Huntsman Corporation of the U.S. produces, alkyl naphthalene sulfonic acid salt) one or more; Emulsifier is as one or more in Nongru-700 # (common name: alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, this dish-60# (common name: Span60), Tween-60 # (common name: polyoxyethylene sorbitan stearate), agriculture breast 1601# (common name: triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer), TERSPERSE4894 (Huntsman Corporation of U.S. product); Wetting agent as in alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500 (Huntsman Corporation of U.S. product) one or more; Thickener as in xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate one or more; Preservative as in formaldehyde, benzoic acid, Sodium Benzoate one or more; Stabilizing agent as in epoxidized soybean oil, epoxychloropropane, triphenyl phosphate one or more; Defoamer is as organic silicon defoamer; Antifreezing agent as ethylene glycol, propane diols, glycerine, urea, inorganic salts as in sodium chloride one or more; Water is deionized water.
During preparation water dispersible granules, those skilled in the art are familiar with the corresponding auxiliary agent of use and complete the present invention very much.Available dispersant as in polycarboxylate (TERSPERSE 2700, T36, GY-D06 etc.), lignosulfonates, alkylnaphthalene sulfonate one or more; Wetting agent as in alkyl sulfate, alkylsulfonate, naphthalene sulfonate one or more; Disintegrant as in ammonium sulfate, sodium sulphate, polyvinylpyrrolidone, starch and derivative thereof, bentonite one or more; Binding agent is as one or more in starch, glucose, polyvinyl alcohol, polyethylene glycol, sodium carboxymethylcellulose, sucrose; Filler as diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
During preparation wetting powder, spendable dispersant is as polycarboxylic acid salt (TERSPERSE 2700, T36, GY-D06 etc.), lignin sulfonate (Ufoxane 3A, Borresperse NA, Borresperse CA-SA etc.), naphthalene and alkyl naphthalene formaldehyde condensate sulfonates class (NNO, MF, Morwet D-425, Tamol NN, TERSPERSE2020 etc.), Nekal BX (nekal), EO-PO block polyether class, alkylphenol-polyethenoxy base ether phosphate, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate (SOPA), in one or more, wetting agent as in Sulfates (K-12), Sulfonates (ABS-Na, BX, Terwet 1004 etc.), compound wetting agent (Morwet EFW) one or more, filler as diatomite, kaolin, fine particle calcium carbonate, talcum powder, white carbon, attapulgite, potter's clay, ammonium sulfate, urea, sucrose, glucose, corn starch, sodium sulphate, sodium polyphosphate etc. one or more.
When preparation dispersibles oil-suspending agent, available auxiliary agent comprises: dispersant is as one or more in polycarboxylate, alkylnaphthalene sulfonate, TERSPERSE 2425 (Huntsman Corporation of the U.S. produces, alkyl naphthalene sulfonic acid salt), emulsifier is as Nongru-700 # (common name: alkylphenol formaldehyde APEO), agriculture breast 2201, this coils-60 (common names: sorbitan monostearate), Tween-60 (common name: sorbitan fatty acid ester APEO), agriculture breast 1601# (common name: triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer), TERSPERSE 4894 (Huntsman Corporation of U.S. product), one or more in TERSPERSE 2500 (Huntsman Corporation of U.S. product), wetting agent as in alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500 (Huntsman Corporation of U.S. product) one or more, thickener is as one or more in white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate, antifreezing agent is if ethylene glycol, propane diols, glycerine, urea, inorganic salts are as one or more in sodium chloride, dispersion medium is as one or more in soybean oil, rapeseed oil, corn oil, methyl oleate, castor oil.
Compared with existing wheat field herbicide, the beneficial effect that Herbicidal combinations of the present invention has is mainly reflected in the following aspects:
(1) a large amount of tests is verified, and no matter mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl are that single dose uses or binary built uses arbitrarily, all effectively can not solve grassy weed and mix question topic.Specifically, mesosulfuron and clodinafop-propargyl composite to Alopecurus, hard grass, deceive careless anti-heterodyne; Azoles quinoline grass ester and clodinafop-propargyl composite to annual bluegrass, the anti-heterodyne of Triticum tauschii; Mesosulfuron and azoles quinoline grass ester composite to hard grass, deceive grass, Alopecurus do not reach good preventive effect.The Herbicidal combinations of ternary built provided by the invention can well overcome above-mentioned defect, and good to the preventive effect of the multiple grassy weed that wheat paddock mixes, its herbicide is composed and promoted significantly the preventive effect of part grassy weed.Confirmed by a large amount of tests, the activity of weeding of mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl three kinds of active ingredients and effect are not simple superposition, but show synergistic effect significantly, especially particularly remarkable to the preventive effect of the wheat paddock grassy weed such as amur foxtail, Alopecurus, hard grass, not grass, annual bluegrass or Triticum tauschii.
(2) the present invention is while expansion herbicide spectrum, also reduce formulation rate and dispenser cost, and the herbicidal active component that three kinds of mechanism of action is different is composite, be conducive to delaying the aggravation of weeds of wheat to the resistance of mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl.
(3) Herbicidal combinations of the present invention can be mixed with the suspending agent, water dispersible granules, the wetting powder that meet agricultural production demand or dispersible oil-suspending agent formulation, and good to Safe to wheat, meets the security requirement of pesticidal preparations.
(4) the present invention has enriched existing cornfield herbicidal kind, can bring considerable market efficiency.
Embodiment
For the ease of understanding object of the present invention, technical scheme and effect thereof, now will be elaborated further the present invention in conjunction with the embodiments.
(1) part prepared by preparation
Example of formulations 1
Take 100 grams of mesosulfurons, 100 grams of azoles quinoline grass esters, 300 grams of clodinafop-propargyls, 25 grams of TERSPERSE 4894 (Huntsman Corporation of U.S. product), 30 grams of phenethyl phenol polyethenoxy base ether phosphates, 20 grams of dispersing agent NNOs, 20 grams of aluminium-magnesium silicates, 5 grams of polyvinyl alcohol, 50 grams of glycerine, 10 grams of formaldehyde, 5 grams of silicone defoaming agents (trade name: s-29 Nanjing "four news" (new ideas applied chemistry product Company), deionized water adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min is 50% mesosulfuron azoles quinoline grass ester clodinafop-propargyl suspending agent with active constituent content obtained after sand mill sand milling.
Example of formulations 2
Take 80 grams of mesosulfurons, 70 grams of azoles quinoline grass esters, 250 grams of clodinafop-propargyls, 20 grams of these dishes-60#, 25 grams of Nongru-700 #, 30 grams of sodium lignin sulfonates, 15 grams of sodium alkyl sulfonates, 10 grams of xanthans, 10 grams of aluminium-magnesium silicates, 30 grams of ethylene glycol, 10 grams of Sodium Benzoates, 5 grams of silicone defoaming agents (trade name: s-29 Nanjing "four news" (new ideas applied chemistry product Company), 10 grams of triphenyl phosphates, deionized water adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min is 40% mesosulfuron azoles quinoline grass ester clodinafop-propargyl suspending agent with active constituent content obtained after sand mill sand milling.
Example of formulations 3
Take 60 grams of mesosulfurons, 90 grams of azoles quinoline grass esters, 200 grams of clodinafop-propargyls, 30 grams of GY-D06 (polycarboxylate), 20 grams of sodium lignin sulfonates, 15 grams of Nekal BXs (nekal), 10 grams of K-12 (lauryl sodium sulfate), 15 grams of polyethylene glycol, 20 grams of polyvinylpyrrolidones, diatomite adds to 1000 gram weight parts.Namely the method for above-mentioned raw materials frequent regulation water intaking dispersible granule mixes, ultra micro air-flow crushing, mixing, granulation step, producing active constituent content is 35% mesosulfuron azoles quinoline grass ester clodinafop-propargylwater water dispersible granule.
Example of formulations 4
Take 70 grams of mesosulfurons, 80 grams of azoles quinoline grass esters, 150 grams of clodinafop-propargyls, 25 grams of TERSPERSE 2700 (polycarboxylates, Huntsman Corporation of the U.S. produce), 30 grams of dispersing agent NNOs (alkylnaphthalene sulfonate formaldehyde condensation products), 20 grams of Nekal BXs (nekal), 20 grams of K-12 (lauryl sodium sulfate), 20 grams of sodium carboxymethylcelluloses, 20 grams of ammonium sulfate, kaolin adds to 1000 gram weight parts.Namely the method for above-mentioned raw materials frequent regulation water intaking dispersible granule mixes, ultra micro air-flow crushing, mixing, granulation step, producing active constituent content is 30% mesosulfuron azoles quinoline grass ester clodinafop-propargylwater water dispersible granule.
Example of formulations 5
Take 40 grams of mesosulfurons, 60 grams of azoles quinoline grass esters, 100 grams of clodinafop-propargyls, 30 grams of polycarboxylic acid salt GY-D06,30 grams of alkylnaphthalene sulfonate formaldehyde condensation products (Morwet D-425), 15 grams of Sulfonateses (Terwet 1004), talcum powder fills up the weight portion to 1000 grams.Above-mentioned raw materials is through mixing, ultra micro air-flow crushing, hybrid technique step, and being prepared into active constituent content is 20% mesosulfuron azoles quinoline grass ester clodinafop-propargyl wetting powder.
Example of formulations 6
Take 90 grams of mesosulfurons, 50 grams of azoles quinoline grass esters, 50 grams of clodinafop-propargyls, 25 grams of sodium lignin sulfonates, 25 grams of alkylnaphthalene sulfonate formaldehyde condensation products (TERSPERSE2020), 10 grams of Sulfonateses (ABS-Na), white carbon fills up the weight portion to 1000 grams.Above-mentioned raw materials is through mixing, ultra micro air-flow crushing, hybrid technique step, and being prepared into active constituent content is 19% mesosulfuron azoles quinoline grass ester clodinafop-propargyl wetting powder.
Example of formulations 7
Take 25 grams of mesosulfurons, 25 grams of azoles quinolines grass ester, 25 grams of clodinafop-propargyls, (Huntsman Corporation of U.S. HUNTSMAN's 30 grams of TERSPERSE 2020 produces, alkyl naphthalene sulfonic acid salt), 40 grams of BY-125,30 grams of this dish-60#, 25 grams of TERSPERSE 2500 (Huntsman Corporation of U.S. product), 10 grams of aluminium-magnesium silicates, 25 grams of ethylene glycol, corn oil fills up to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min is that 7.5% mesosulfuron azoles quinoline grass ester clodinafop-propargyl dispersibles oil-suspending agent with active constituent content obtained after sand mill sand milling.
Example of formulations 8
Take 10 grams of mesosulfurons, 20 grams of azoles quinoline grass esters, 20 grams of clodinafop-propargyls, 30 grams of dispersing agent NNOs (alkylnaphthalene sulfonate), 20 grams of BY-140#, 30 grams of tween agriculture breasts 1601#, 20 grams of Nongru-700 #, 20 grams of TERSPERSE 2500 (Huntsman Corporation of U.S. product), 20 grams of bentonites, 50 grams of propane diols, rapeseed oil adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min is that 5% mesosulfuron azoles quinoline grass ester clodinafop-propargyl dispersibles oil-suspending agent with active constituent content obtained after sand mill sand milling.
(2) Biometric portion
Assays Example 1
Illustrate that mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl mixture are to the synergistic effect of cornfield gramineae weed by Toxicity Determination.
In order to prevent and treat cornfield gramineae weed, inventor has carried out mutual composite synergy with mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl and has studied, and concrete grammar is:
Subjects is amur foxtail (Alopecurus aequalis), Alopecurus (Alopecurus japonicus), hard grass (Sclerochloa dura), not grass (Beckmannia syzigachne), annual bluegrass (Poa annua), Triticum tauschii (Aegilops tauschii), seed is collected in field, and germination rate is more than 95%.
Former medicine is mixed with the test medicine of needs, test method is with reference to " People's Republic of China (PRC) agricultural industry criteria NY/T1155.7-2006 farm-chemical indoor determination test rule weed killer herbicide the 7th part: the synergy of mixture measures ".First single dose and each Mixed Pharmacy are arranged 3 ~ 4 variable concentrations gradients (preventive effect sets by geometric progression in the scope of 5% ~ 90%), if 1 clear water contrast, repeat 4 times.
Cultivation for examination weeds adopts indoor pot cultivation.Test soil is the test special soil that non-medication plot is collected, get flowerpot of the same size, soil is filled to 2/3 At The Height, add water and treat soil complete wetting, weed seed vernalization in biochemical cultivation case showed money or valuables one carries unintentionally evenly is placed in flowerpot, each about 100 of every basin, blinding 0.5 ~ 1cm is placed on cellar culture in greenhouse, is 80 strains after weeds emerge by every basin weeds fixed number.When weeds 3 ~ 5 leaf phase, with laryngeal spray, liquid is evenly sprayed onto on weeds plant, to be evenly thoughtfully as the criterion, to continue after dispenser to be placed in greenhouse to cultivate and observe.
Adopt co-toxicity coefficient method to evaluate the Herbicidal combinations containing azoles quinoline grass ester provided by the invention to the preventive effect of cornfield gramineae weed, with the logarithm of drug concentration and medicament, the preventive effect probability value to target weeds asks regression equation, and calculates the ED of medicament to weeds
50value, then tries to achieve co-toxicity coefficient.
Compound drug is evaluated to the synergy effect of weeds with co-toxicity coefficient, co-toxicity coefficient >120 is expressed as synergistic effect, co-toxicity coefficient is expressed as summation action between 80 ~ 120, and co-toxicity coefficient <80 is expressed as antagonism.The result of the test of Toxicity Determination in table 1 to table 6.
Table 1 mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl combine the Toxicity Determination to amur foxtail
Table 2 mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl combine the Toxicity Determination to Alopecurus
Table 3 mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl combine the Toxicity Determination to hard grass
Table 4 mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl combine the Toxicity Determination to deceiving grass
Table 5 mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl combine the Toxicity Determination to annual bluegrass
Table 6 mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl combine the Toxicity Determination to Triticum tauschii
Toxicity Determination result shown in from table 1 to table 6 shows, mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl is composite according to a certain percentage, can filter out and have the ternary built of good virulence to combine to grassy weed amur foxtail, Alopecurus, hard grass, not grass, annual bluegrass, Triticum tauschii.Especially, the percentage by weight that the active ingredient mesosulfuron that above-mentioned ternary built combines accounts for described composition is 1% ~ 10%, the percentage by weight that azoles quinoline grass ester accounts for described composition is 2% ~ 10%, when the percentage by weight that clodinafop-propargyl accounts for described composition is 2% ~ 30%, to grassy weed amur foxtail, Alopecurus, hard grass, deceive grass, annual bluegrass, Triticum tauschii virulence all there is good synergistic effect.
Biological Examples 2, control cornfield gramineae weed field control effectiveness test
Inventor has carried out example of formulations 7 (7.5% mesosulfuron azoles quinoline grass ester clodinafop-propargyl dispersibles oil-suspending agent) in 2014 in Baoji, Shaanxi province city and has prevented and treated cornfield gramineae weed field control effectiveness test, demonstrates the control efficiency of this medicament to cornfield gramineae weed and the safety to wheat.
Trial crops is wheat, and controlling object is cornfield gramineae weed (amur foxtail, Alopecurus, hard grass, not grass, annual bluegrass, Triticum tauschii), and weed size is in 2 ~ 5 leaf phases.Test is located at Mei County, Baoji, and experimental field physical features is smooth, and soil is loam, middle fertility, pH value 7.1, and duration of test rich water quality management is medium.Test medicine and dosage refer to table 7.Separately establish blank, often process 4 times and repeat, every community 30 ㎡, Gong40Ge community, random district, community group arranges.Adopt conventional spray-on process, mu dispenser liquid 45kg.
Cornfield gramineae weed field control effectiveness test result prevented and treated by table 7
Field test results shows, 7.5% mesosulfuron azoles quinoline grass ester clodinafop-propargyl dispersibles oil-suspending agent has good control efficiency to cornfield gramineae weed, by 15 grams/acre, 20 grams/acre, spray 1 time for 25 grams/acre, 92.15% is respectively to the average preventive effect of 40 days after cornfield gramineae weed medicine, 95.37%, 96.96%, obviously be better than 5% azoles quinoline grass ester clodinafop-propargyl and dispersible oil-suspending agent 30 grams/acre, 5% mesosulfuron clodinafop-propargyl dispersibles oil-suspending agent 30 grams/acre, 5% mesosulfuron azoles quinoline grass ester dispersibles oil-suspending agent 50 grams/acre, 3% mesosulfuron dispersibles oil-suspending agent 25 grams/acre, 5% azoles quinoline grass emulsifiable concentrate 50 grams/acre, the preventive effect of 15% Clodinafop-propargyl microemulsion 16.7 grams/acre.By to significance of difference analysis in 40 days after medicine, 7.5% mesosulfuron azoles quinoline grass ester clodinafop-propargyl dispersibles oil-suspending agent compared with other contrast, and reaches pole significance level (table 7) to cornfield gramineae weed preventive effect difference.
Embodiment preparation is to the security survey of wheat: each process is all safe without poisoning to wheat.From dispenser to heading flowering period, Plant Height in Wheat, leaf look, tiller, secondary root etc. is consistent with contrast.
From above embodiment, three active components are by weight percentage: mesosulfuron 1% ~ 10%, azoles quinoline grass ester 2% ~ 10%, clodinafop-propargyl 2% ~ 30% is carried out composite, can be made into suspending agent, water dispersible granules, wetting powder, dispersible oil-suspending agent, to cornfield gramineae weed as annual bluegrass, hard grass, not grass, amur foxtail have significant control efficiency, synergistic effect is obvious, reduce dosage and drug cost, and it is good to Safe to wheat, be the favourable agents of control cornfield gramineae weed, therefore produce and have wide practical use.
In sum, composition of the present invention is employing three kinds of active component compound schemes, its activity and herbicidal effect are not the simple superposition of each composition activity, compared with existing unitary agent or binary built preparation, except there is significant herbicidal effect, there is significant synergistic effect to grassy weed amur foxtail, Alopecurus, hard grass, not grass, annual bluegrass, Triticum tauschii, control of weeds spectrum expands, cost accounting reduces, good to crop safety, meets the security requirement of pesticidal preparations.
Claims (5)
1. the Herbicidal combinations containing azoles quinoline grass ester, it is characterized in that, comprise active ingredient mesosulfuron, azoles quinoline grass ester and clodinafop-propargyl, wherein, the percentage by weight that mesosulfuron accounts for described composition is 1% ~ 10%, the percentage by weight that azoles quinoline grass ester accounts for described composition is 2% ~ 10%, and the percentage by weight that clodinafop-propargyl accounts for described composition is 2% ~ 30%.
2. the Herbicidal combinations containing azoles quinoline grass ester according to claim 1, is characterized in that, the percentage that described mesosulfuron, azoles quinoline grass ester and the content sum of clodinafop-propargyl account for described composition total weight is 5% ~ 50%.
3. the Herbicidal combinations containing azoles quinoline grass ester according to claim 1 and 2, it is characterized in that, the formulation of described Herbicidal combinations is suspending agent, water dispersible granules, wetting powder or dispersibles oil-suspending agent.
4. the purposes of Herbicidal combinations on control cornfield gramineae weed containing azoles quinoline grass ester according to claim 1.
5. the purposes of Herbicidal combinations on control cornfield gramineae weed containing azoles quinoline grass ester according to claim 4, is characterized in that, described cornfield gramineae weed is amur foxtail, Alopecurus, hard grass, not grass, annual bluegrass or Triticum tauschii.
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| CN201510050460.XA CN104604916B (en) | 2015-01-30 | 2015-01-30 | A kind of Herbicidal combinations containing pinoxaden |
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| CN201510050460.XA CN104604916B (en) | 2015-01-30 | 2015-01-30 | A kind of Herbicidal combinations containing pinoxaden |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105557716A (en) * | 2016-02-04 | 2016-05-11 | 创新美兰（合肥）股份有限公司 | Pinoxaden and clodinafop-propargyl compound emulsifiable oil and preparation method thereof |
| CN108271795A (en) * | 2018-03-27 | 2018-07-13 | 安徽圣丰生化有限公司 | A kind of herbicidal composition and preparation method thereof containing pinoxaden |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101528041A (en) * | 2006-10-27 | 2009-09-09 | 先正达参股股份有限公司 | A herbicidal combination |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101528041A (en) * | 2006-10-27 | 2009-09-09 | 先正达参股股份有限公司 | A herbicidal combination |
Non-Patent Citations (1)
| Title |
|---|
| PARVIZ SHARIFI ZIVEH: "Evaluation of the effectiveness of different herbicides on weed invasion in the fields of triticale", 《JOURNAL OF PLANT PROTECTION RESEARCH》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105557716A (en) * | 2016-02-04 | 2016-05-11 | 创新美兰（合肥）股份有限公司 | Pinoxaden and clodinafop-propargyl compound emulsifiable oil and preparation method thereof |
| CN108271795A (en) * | 2018-03-27 | 2018-07-13 | 安徽圣丰生化有限公司 | A kind of herbicidal composition and preparation method thereof containing pinoxaden |
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| CN104604916B (en) | 2017-06-06 |
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