CN104126590A - Topramezone-containing herbicide composition for corn field - Google Patents
Topramezone-containing herbicide composition for corn field Download PDFInfo
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- CN104126590A CN104126590A CN201410405052.7A CN201410405052A CN104126590A CN 104126590 A CN104126590 A CN 104126590A CN 201410405052 A CN201410405052 A CN 201410405052A CN 104126590 A CN104126590 A CN 104126590A
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- mesotrione
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- azoles humulone
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Abstract
The invention discloses a topramezone-containing herbicide composition for a corn field. The composition consists of topramezone, mesotrione and atrazine; the weight ratio of topramezone to mesotrione to atrazine is (0.5-40): (1-40): (5-80); the sum of the contents of topramezone, mesotrione and atrazine is 5-85 percent of the total weight of the composition. The composition can be prepared into a suspending agent, water dispersing granules, wettable powder or a dispersible oil suspending agent which is available in agriculture. The components of the composition are reasonable in mixing and an outstanding synergism effect is achieved; the prevention and treatment effect on weeds in the corn field is enhanced, the prevention and treatment spectrum for the weeds in the corn field is expanded, the pesticide application period is prolonged, and the pesticide use cost is lowered; the prepared dose form is high in safety to corns; the composition has a relatively good prevention and treatment effect on grassy weeds and broadleaf weeds in the corn field.
Description
Technical field
The invention belongs to technical field of compounded pesticide, relate to a kind of herbicidal composition, be specifically related to a kind of corn field herbicide composition containing benzene azoles humulone.This herbicidal composition, except containing active ingredient benzene azoles humulone, also comprises active ingredient mesotrione and atrazine, is applicable to control of maize field weed.
Background technology
Corn field weed occurs general, of a great variety, mainly contains broad leaved weeds as Amaranthus retroflexus, lamb's-quarters, field bindweed, black nightshade, three-coloured amaranth, piemarker, iron amaranth, kitchen garden, Siberian cocklebur, dayflower, ox chickweed etc.; Grassy weed is as barnyard grass, lady's-grass, green foxtail, eleusine indica, Bermuda grass, moleplant seed etc.; Sedge weed is as rhizome of nutgrass flatsedge etc.Weeds and corn are fought for moisture, nutrient, illumination and space, affect the normal growth of Maize at Seedling Stage, even can cause Severe Reduction.Maize at Seedling Stage is subject to the harm of weeds the most serious, thus the chemical control of weeds should do a good job of it broadcast before rear seedling and seedling after early stage two critical periods.People use chemical herbicide weeding always, but because the herbicide spectrum of most of weed killer herbicide own is limited, and long-term use easily causes the generation of Weed Resistance, therefore need people to improve existing weed killer herbicide, make it have better herbicidal effect and wider herbicide spectrum.
Benzene azoles humulone (Topramezone), be again benzene pyrazoles humulone, belong to pyrazoline ketone weed killer herbicide, broad weed-killing spectrum, the most grassy weeds of corn field and broad leaved weed are had to preventive effect, can effectively prevent and kill off the weeds such as green foxtail, eleusine indica, lamb's-quarters, knotweed, piemarker, kitchen garden, Siberian cocklebur, black nightshade, but undesirable to the preventive effect of lady's-grass and barnyard grass.Benzene azoles humulone can be absorbed by the blade of weeds, root and stem, and in plant corpus Bidirectional Conduction up and down, remote-effects carotenoid synthetic, disturbs chloroplast synthetic and function under illumination, finally cause the serious albefaction of weeds lobus cardiacus, necrosis, weeds are dead.Field trial shows, benzene azoles humulone all shows extraordinary safety to the corn of the types such as conventional field corn, sweet corn, pop corn, glutinous corn, is safest weed killer herbicide in all after-seedling herbicide for maize kinds on current domestic and international market.Benzene azoles humulone is also the fastest herbicide after seedling of herbicide in the market, and spray medicine at 20 ℃ just can take effect for 2～4 days, and albefaction poisoning symptom appears in weeds above-ground plant parts.
Mesotrione (Mesotrione), has another name called mesotrione, chemical name: 2-(4-mesyl-2-nitro benzoyl) cyclohexane-1; 3-diketone; relative molecular weight 339.32, is a kind of three ketones weed killer herbicide, belongs to before selectivity inner sucting conduction type maize seedling, herbicide after seedling.Mesotrione can suppress the biosynthesis of carotenoid, weeds is occurred after albefaction dead, and it can be by the leaf of plant and root absorption, at plant xylem and phloem to top, transmission downwards, there is action of contace poison and wholesomeness.Mesotrione is the broadleaf weed such as control of maize field dayflower, piemarker, knotweed, acalypha copperleaf, lamb's-quarters, Amaranthus retroflexus effectively, to barnyard grass, lady's-grass, etc. part monocotyledon weed have the effect of well preventing and kill off, to corn safety.Under normal crop rotation, to succession crop as crop safeties such as wheat class, rape, potato, beets.The using method of mesotrione is cauline leaf spraying, one season corn use once, under recommended dose to corn safety.
Atrazine (Atrazine), the chloro-4-ethylamino-6-of chemical name: 2-isopropylamino-1,3,5-triazines, relative molecular weight 215.7, belongs to before selectivity inner sucting conduction type seedling, herbicide after seedling.Plant be take root absorption as main to the absorption of atrazine, and cauline leaf absorbs seldom, and atrazine is transmitted to rapidly plant meristematic tissue and leaf portion, disturbs photosynthesis to make weeds lethal.In the resistance crop bodies such as corn, atrazine is decomposed and generates innocuous substance by corn ketolase, thereby to seeding corn and other crops safety.The lasting period of atrazine is longer, and herbicide spectrum is wider, can prevent and kill off multiple broad leaved weed, especially corn is had to good selectivity.It is pointed out that atrazine easily by rainwater drip washing to soil compared with deep layer, also effective to some dark root grass, but easily produce poisoning, when weeds generation density is higher, or plant is when larger, it is difficult to thoroughly kill weeds.
By inventor for many years field trial learn, benzene azoles humulone is undesirable to part monocotyledon weed preventive effects such as lady's-grass, barnyard grasses, often there is the phenomenon of a large amount of weeds demutations in the later stage, but good to green foxtail preventive effect.Although mesotrione herbicide spectrum is very wide, will be worse than the preventive effect to broad leaved weed to the preventive effect of grassy weed, green foxtail has natural tolerance to mesotrione simultaneously, still better at field expression effect to barnyard grass, lady's-grass.Atrazine single dose is used in Production of Large Fields, all undesirable to corn field annual gramineae and broad leaved weed preventive effect, can not meet peasant household's Production requirement, but in this compound, absorption is stronger, and dark root weeds are also had to certain preventive effect.
Benzene azoles humulone and atrazine, can not solve lady's-grass, the undesirable problem of barnyard grass preventive effect; Mesotrione and atrazine, can not solve the problem undesirable to green foxtail preventive effect; Benzene azoles humulone and mesotrione are composite, can solve benzene azoles humulone to the preventive effect of lady's-grass, barnyard grass the general and problem of mesotrione to the anti-heterodyne of green foxtail, but the two composite shows summation action, and add after atrazine, show obvious synergistic effect, and can solve the problem to the anti-heterodyne of dark root weeds.In addition, the benzene azoles humulone single dose phase of using is generally 2～5 leaf phases of weeds, and the mesotrione single dose phase of using is 3～5 leaf phases of weeds, and the atrazine single dose phase of using is 3～4 leaf phases of weeds, after three's combination, can extend to 2～9 leaf phases of weeds the period of using.
Inventor finds still there is no the composite composition patent of benzene azoles humulone, mesotrione and atrazine three at present through retrieval.Therefore,, for solving the problem of the weed control running in Maize Production, need to develop a kind of benzene azoles humulone, mesotrione and the composite Herbicidal combinations of atrazine three.
Summary of the invention
First object of the present invention is to solve benzene azoles humulone to lady's-grass and barnyard grass preventive effect is undesirable and mesotrione is undesirable to green foxtail preventive effect problem, and expands herbicide spectrum simultaneously, reduces dosage, extends dispenser period, reduces cost accounting.The present invention selects benzene azoles humulone, mesotrione and the atrazine that the mechanism of action is different, and a kind of corn field herbicide composition containing benzene azoles humulone is provided.Said composition shows significant synergistic effect, has improved the control efficiency to corn field weed, has expanded the control spectrum of corn field weed, has extended dispenser period, and has reduced drug cost.
Second object of the present invention is to provide the herbicidal composition preparation formulation containing benzene azoles humulone, mesotrione and atrazine.
The 3rd object of the present invention is to provide the application on control of maize field weed of herbicidal composition containing benzene azoles humulone, mesotrione and atrazine.
For achieving the above object, the technical scheme that the present invention takes has been to provide a kind of corn field herbicide composition containing benzene azoles humulone.Described composition is comprised of benzene azoles humulone, mesotrione and three kinds of active components of atrazine, and wherein the weight ratio of benzene azoles humulone, mesotrione and atrazine is (0.5～40): (1～40): (5～80).
As technical scheme preferably, the weight ratio of active component benzene azoles humulone, mesotrione and the atrazine of described composition is (1～30): (1～20): (5～50), and the content sum of described benzene azoles humulone, mesotrione and atrazine is described composition total weight 5%～85%.
The described corn field herbicide composition containing benzene azoles humulone, the preparation formulation that can prepare according to method known in those skilled in the art can or dispersible oil-suspending agent for suspending agent, water dispersible granules, wetting powder.Those skilled in the art can learn according to existing knowledge, and preparing above-mentioned preparation formulation also needs to screen multiple suitable auxiliary agent.
To suspending agent, spendable auxiliary agent has: dispersant, as in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), TERSPERSE 2020 (U.S. Huntsman Corporation product, alkyl naphthalene sulfonic acid salt) one or more; 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: one or more triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), in TERSPERSE 4894 (U.S. Huntsman Corporation product) emulsifier, as Nongru-700 # (common name:; 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 (U.S. Huntsman Corporation 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, 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.
For water dispersible granules, those skilled in the art are familiar with the corresponding auxiliary agent of use and complete the present invention very much.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, 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.
To wetting powder, spendable auxiliary agent has: dispersant, as polycarboxylic acid salt, (TERSPERSE 2700, T36, GY-D06 etc.), lignin sulfonate (Ufoxane 3A, Borresperse NA, Borresperse CA-SA etc.), naphthalene and Fluhyzon formaldehyde condensation products Sulfonates (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.
To dispersibling oil-suspending agent, spendable auxiliary agent has: dispersant, as in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), TERSPERSE 2020 (HUNTSMAN of U.S. Huntsman Corporation product, alkyl naphthalene sulfonic acid salt) one or more; Alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, this dish-60# (common name: sorbitan monostearate), Tween-60 # (common name: sorbitan monostearate APEO), agriculture breast 1601# (common name: one or more phenethyl phenol polyoxyethylene poly-oxygen propylene aether), in TERSPERSE 4894 (U.S. Huntsman Corporation product) emulsifier, as the serial emulsifier of BY (castor oil polyoxyethylene ether) (BY-110, BY-125, BY-140), Nongru-700 # (common name:; 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 (U.S. Huntsman Corporation product) one or more; Thickener, as in white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate one or more; Antifreezing agent, as ethylene glycol, propane diols, glycerine, urea, inorganic salts as in sodium chloride one or more; Dispersion medium, as in soybean oil, rapeseed oil, corn oil, methyl oleate, diesel oil, machine oil, mineral oil one or more.
The technical scheme that the present invention takes further comprises, the purposes of the described corn field herbicide composition containing benzene azoles humulone on control of maize field weed.
As technical scheme preferably, the purposes of the described corn field herbicide composition containing benzene azoles humulone on control of maize field grassy weed and broad leaved weed.
Compared with prior art, the beneficial effect that Herbicidal combinations of the present invention has is:
(1) pass through field trial for many years, the present invention has filtered out the Herbicidal combinations of benzene azoles humulone, mesotrione and atrazine ternary built, the activity of weeding of these three kinds of active ingredients and effect are not simple superposition, but shown significant synergistic effect, improved the control efficiency to corn field weed, expanded the control spectrum of corn field weed, extended dispenser period, and reduced drug cost.Especially, this Herbicidal combinations is especially better to the preventive effect of corn field grassy weed and broad leaved weed.
(2) the present invention has well solved single dose benzene azoles humulone to lady's-grass and barnyard grass preventive effect is undesirable and mesotrione is undesirable to green foxtail preventive effect problem, the multiple formulation of Herbicidal combinations preparation is good to corn safety, meets the security requirement of pesticidal preparations.
Embodiment
In order to make object of the present invention, technical scheme and advantage (beneficial effect) clearer, below in conjunction with embodiment, the present invention is further elaborated.
(1) preparation is prepared part
First the preparation that can prepare benzene azoles humulone, mesotrione and atrazine composition describes.The processing technology of the various preparations of the present composition is prior art, according to different situations, can change to some extent.It should be noted that, the percentage in following embodiment ownership agent prescription is all weight percentage.
FORMULATION EXAMPLE 1
S-29 Nanjing "four news" (new ideas applied chemistry product company product), surplus is deionized water take 0.5% benzene azoles humulone, 9.5% mesotrione, 60% atrazine, 3%TERSPERSE 4894 (U.S. Huntsman Corporation product), 2%TERSPERSE 2500 (U.S. Huntsman Corporation product), 2% dispersing agent NNO, 2% aluminium-magnesium silicate, 0.2% xanthans, 5% ethylene glycol, 0.5% formaldehyde, 0.5% silicone defoaming agent (trade name:.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making active constituent content after sand mill sand milling, is 70% benzene azoles humulone mesotrione atrazine suspending agent.
FORMULATION EXAMPLE 2
S-29 Nanjing "four news" (new ideas applied chemistry product company product), 1% epoxychloropropane, surplus be deionized water take 3% benzene azoles humulone, 40% mesotrione, 17% atrazine, 2%TERSPERSE 2020 (U.S. Huntsman Corporation product), 2% this dish-60#, 2% Tween-60 #, 1%TERSPERSE 2500 (U.S. Huntsman Corporation product), 2% bentonite, 0.3% xanthans, 3% propane diols, 0.5% benzoic acid, 0.5% silicone defoaming agent (trade name:.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making active constituent content after sand mill sand milling, is 60% benzene azoles humulone mesotrione atrazine suspending agent.
FORMULATION EXAMPLE 3
S-29 Nanjing "four news" (new ideas applied chemistry product company product), surplus is deionized water take 3% benzene azoles humulone, 12% mesotrione, 40% atrazine, 3.5% agriculture breast 2201,1.5%TERSPERSE 2500 (U.S. Huntsman Corporation product), 2% sodium lignin sulfonate, 2% polyvinyl alcohol, 0.2% xanthans, 5% ethylene glycol, 0.5% benzoic acid, 0.5% silicone defoaming agent (trade name:.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making active constituent content after sand mill sand milling, is 55% benzene azoles humulone mesotrione atrazine suspending agent.
FORMULATION EXAMPLE 4
Take 40% benzene azoles humulone, 20% mesotrione, 20% atrazine, 2%TERSPERSE 2700 (polycarboxylate, U.S. Huntsman Corporation product), 2% sodium lignin sulfonate, 1% Nekal BX (nekal), 1%K-12 (lauryl sodium sulfate), 1%PVA (molecular weight 2000), 2% polyvinylpyrrolidone, kaolin and add to 100% weight portion.The method of the frequent regulation of above-mentioned raw materials water intaking dispersible granule mixes, to produce active constituent content be 80% benzene azoles humulone mesotrione atrazine water dispersible granule for ultra micro air-flow crushing, mixing, granulation step.
FORMULATION EXAMPLE 5
Take 5% benzene azoles humulone, 25% mesotrione, 5% atrazine, 2%T36 (polycarboxylate), 2% dispersing agent NNO (alkylnaphthalene sulfonate formaldehyde condensation products), 2% Nekal BX (nekal), 2%K-12 (lauryl sodium sulfate), attapulgite and add to 100% weight portion.The method of the frequent regulation of above-mentioned raw materials water intaking dispersible granule mixes, to produce active constituent content be 35% benzene azoles humulone mesotrione atrazine water dispersible granule for ultra micro air-flow crushing, mixing, granulation step.
FORMULATION EXAMPLE 6
Take 10% benzene azoles humulone, 5% mesotrione, 50% atrazine, 2%GY-D06 (polycarboxylate), 3% sodium lignin sulfonate, 2% Nekal BX (nekal), 2%K-12 (lauryl sodium sulfate), talcum powder and add to 100% weight portion.The method of the frequent regulation of above-mentioned raw materials water intaking dispersible granule mixes, to produce active constituent content be 65% benzene azoles humulone mesotrione atrazine water dispersible granule for ultra micro air-flow crushing, mixing, granulation step.
FORMULATION EXAMPLE 7
Take 20% benzene azoles humulone, 1% mesotrione, 54% atrazine, 4%TERSPERSE 2700,3% alkylnaphthalene sulfonate formaldehyde condensation products (Tamol NN), 1% lauryl sodium sulfate, attapulgite and fill up the weight portion to 100%.It is 75% benzene azoles humulone mesotrione atrazine wetting powder that above-mentioned raw materials is prepared into active constituent content through mixing, ultra micro air-flow crushing, hybrid technique step.
FORMULATION EXAMPLE 8
Take 30% benzene azoles humulone, 6% mesotrione, 4% atrazine, 6% calcium lignosulfonate, 4% alkylnaphthalene sulfonate formaldehyde condensation products (Morwet D-425), 2% lauryl sodium sulfate, white carbon and fill up the weight portion to 100%.It is 40% benzene azoles humulone mesotrione atrazine wetting powder that above-mentioned raw materials is prepared into active constituent content through mixing, ultra micro air-flow crushing, hybrid technique step.
FORMULATION EXAMPLE 9
Take 2% benzene azoles humulone, 3% mesotrione, 80% atrazine, 2% calcium lignosulfonate (Borresperse CA-SA), 2% alkylnaphthalene sulfonate formaldehyde condensation products (TERSPERSE2020), 2% Sulfonates (Terwet 1004), sodium sulphate and fill up the weight portion to 100%.It is 85% benzene azoles humulone mesotrione atrazine wetting powder that above-mentioned raw materials is prepared into active constituent content through mixing, ultra micro air-flow crushing, hybrid technique step.
FORMULATION EXAMPLE 10
Take 10% benzene azoles humulone, 10% mesotrione, 10% atrazine, 2%TERSPERSE 2020 (U.S. Huntsman Corporation product), 4%BY-125#, 3% Tween-60 #, 4% agriculture breast 2201#, 3% Nongru-700 #, 1%TERSPERSE 2500 (U.S. Huntsman Corporation product), 2% white carbon, 5% propane diols, methyl oleate adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making active constituent content after sand mill sand milling, is that 30% benzene azoles humulone mesotrione atrazine dispersibles oil-suspending agent.
FORMULATION EXAMPLE 11
Take 15% benzene azoles humulone, 15% mesotrione, 20% atrazine, 2% dispersing agent NNO, 3% this dish-60#, 8%BY-110,1%TERSPERSE 2500 (U.S. Huntsman Corporation product), 1% aluminium-magnesium silicate, 3% glycerine, soybean oil and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making active constituent content after sand mill sand milling, is that 50% benzene azoles humulone mesotrione atrazine dispersibles oil-suspending agent.
FORMULATION EXAMPLE 12
Take 5% benzene azoles humulone, 10% mesotrione, 30% atrazine, 2% polycarboxylate, 3% this dish-60#, 6%BY-125,2%TERSPERSE 4894,1% naphthalene sulfonate, 1% bentonite, 3% sodium chloride, corn oil and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making active constituent content after sand mill sand milling, is that 45% benzene azoles humulone mesotrione atrazine dispersibles oil-suspending agent.
FORMULATION EXAMPLE 13
Take 1% benzene azoles humulone, 1% mesotrione, 3% atrazine, 2% polycarboxylate, 5% agriculture breast 2201,6%BY-125,2% Tween-60 #, 1% naphthalene sulfonate, 2% attapulgite, 3% sodium chloride, castor oil and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making active constituent content after sand mill sand milling, is that 5% benzene azoles humulone mesotrione atrazine dispersibles oil-suspending agent.
(2) biologicall test part
Biologicall test embodiment 1
The Toxicity Determination experiment to corn field weed of benzene azoles humulone, mesotrione and atrazine.
For control of maize field weed, inventor has carried out mutual composite synergy research with benzene azoles humulone, mesotrione and atrazine, and concrete grammar is:
Subjects is barnyard grass (Echinochloa crusgalli), green foxtail (Setaria viridis) and Amaranthus retroflexus (Amaranthus retroflexus).Former medicine is mixed with to the test medicine needing, test method is with reference to the agricultural industry criteria NY/T1155.7-2006 of < < People's Republic of China (PRC) farm-chemical indoor determination test rule weed killer herbicide the 7th part: > > is measured in composite synergy.First single dose and each compound drug are arranged to 3～4 variable concentrations gradients (preventive effect is set by geometric progression in 5%～90% scope), establish 1 clear water contrast, each is processed and repeats 4 times.
Spray-on process after test employing seedling, medicament is now with the current, for examination weeds, adopts pot-culture method to cultivate, adopt 11 * 12cm plastic basin, the corn field soil that did not use weed killer herbicide is air-dry, fill basin, quantitative 4/5 place of dry ground in basin after sieving, soil pH 7.0, the content of organic matter 1.2%.Adopt basin alms bowl bottom infiltrating irrigation mode, make soil complete wetting.After barnyard grass, green foxtail and Amaranthus retroflexus seed that upper one year, field gathered are soaked, each approximately 60 even program requests are at soil surface, and blinding 0.5cm～1cm is placed on warm normal temperature laboratory and cultivates, in incubation with the moisturizing of basin alms bowl bottom infiltrating irrigation mode, to keep ground moistening.After weeds emerge, every basin weeds being determined to strain is 50 strains, at weeds 3～5 leaves, during the phase, with laryngeal spray, liquid is evenly sprayed onto on weeds plant, to be evenly thoughtfully as the criterion, continues to be placed in greenhouse and cultivate and observe after dispenser.
After dispenser, periodical visual inspection is observed growth conditions, poisoning symptom and the poisoning degree of weeds, within after medicine 15 days, cuts off each and processes green portion on the ground, adopts scales/electronic balance weighing, calculates actual survival rate E and theoretical survival rate E
0.With the check of Gowing method, evaluate both mixed synergy types to weeds arbitrarily, with the check of Colby method, evaluate the mixed synergy type to weeds of three.
Actual survival rate E (%)=(treatment region weeds fresh weight/check plot weeds fresh weight) * 100
Theoretical survival rate E
0(%)=A+B * (100-A)/100 (Binary mixture)
In formula, A, B represent respectively the actual survival rate of 2 kinds of single doses.Work as E
0during-E>10%, illustrate and produce synergistic effect; Work as E
0during-E<-10%, illustrate and produce antagonism; Work as E
0-E between ± 10% time, illustrates and produces summation action.
Theoretical survival rate E
0(%)=A * B * C * ... * N/100
(n-1)(ternary and above mixed)
In formula, A, B, C, N represent respectively the actual survival rate of n kind single dose, and n is complex weedicide kind quantity.Work as E
0during-E>10%, illustrate and produce synergistic effect; Work as E
0during-E<-10%, illustrate and produce antagonism; Work as E
0-E between ± 10% time, illustrates and produces summation action.
Benzene azoles humulone, mesotrione and atrazine combination the results are shown in Table 1 to the Toxicity Determination of barnyard grass.Benzene azoles humulone, mesotrione and atrazine combination the results are shown in Table 2 to the Toxicity Determination of green foxtail.Benzene azoles humulone, mesotrione and atrazine combination the results are shown in Table 3 to the Toxicity Determination of green foxtail.
Table 1 benzene azoles humulone, mesotrione and the Toxicity Determination of atrazine combination to barnyard grass
Table 2 benzene azoles humulone, mesotrione and the Toxicity Determination of atrazine combination to green foxtail
Table 3 benzene azoles humulone, mesotrione and the Toxicity Determination of atrazine combination to Amaranthus retroflexus
Toxicity Determination result shows: benzene azoles humulone, mesotrione and atrazine are according to (0.5～40): (1～40): (5～80) ratio is mixed, grassy weed barnyard grass, green foxtail and broad leaved weed Amaranthus retroflexus are all had to good virulence, and synergistic effect is obvious.
Biologicall test embodiment 2
Control of maize field weed field control effectiveness test.
Inventor has carried out FORMULATION EXAMPLE 3 (55% benzene azoles humulone mesotrione atrazine suspending agent) control of maize field weed field control effectiveness test in 2014 Jingyang County, Nian Shaanxi Province, verified that this medicament is to the control efficiency of corn field weed and the safety to corn.Trial crops is corn, and controlling object is corn field weed (barnyard grass, green foxtail, chenopodium glaucum linn, Amaranthus retroflexus), and weed size is in 2～5 leaf phases.Test is located at Jingyang County, Xianyang, and experimental field physical features is smooth, and soil is loam, middle fertility, and pH value 7.1, duration of test rich water quality management is medium.Test medicine and dosage refer to table 4.Separately establish blank, every processing repeats for 4 times, every community 30m
2, Gong40Ge community, random district, community group is arranged.Adopt conventional spray-on process, mu dispenser liquid 45kg.
Table 4 control of maize field weed field control effectiveness test result
Field test results shows, 55% benzene azoles humulone mesotrione atrazine suspending agent has good control efficiency to corn field weed, by 30 grams/acre, 35 grams/acre, spray 1 time for 40 grams/acre, the average preventive effect of 15 days after corn field weed medicine is respectively to 85.02%, 89.95%, 93.28%, obviously be better than 10 grams/acre of 50% benzene azoles humulone mesotrione suspending agents, 40% 40 grams/acre of benzene azoles humulone atrazine suspending agents, 25% 200 grams/acre of mesotrione atrazine suspending agents, 30% 7 grams/acre of benzene azoles humulone suspending agents, 15% 60 grams/acre of mesotrione suspending agents, the preventive effect of 50% 150 grams/acre of atrazine suspending agents.By 15 days significances of difference after medicine are analyzed, difference reaches utmost point significance level.
Security survey, duration of test is observed, and all reagent agents, to corn growth safety, occur without poisoning phenomenon.
As can be seen from the above embodiments, the first active component benzene azoles humulone, the second active component mesotrione and the 3rd active component atrazine be (0.5～40) by weight: (1～40): (5～80) are composite, especially by weight (1～30): (1～20): (5～50) are composite, and can be made into suspending agent, water dispersible granules, wetting powder, dispersible oil-suspending agent, corn field weed is had to significant control efficiency, synergistic effect is obvious, dosage and drug cost have been reduced, extended insecticide spraying time, and good to corn safety, it is the desirable medicament of control of maize field weed, therefore in Maize Production, have wide practical use.
In sum, composition of the present invention is to adopt three kinds of active component compound schemes, its active and herbicidal effect is not the simple superposition of each composition activity, compares, except having significant herbicidal effect with existing single or binary built preparation, and there is a significant synergistic effect, herbicide spectrum expands, and cost accounting reduces, and insecticide spraying time is long, good to doing safety, meet the security requirement of pesticidal preparations.
The present invention has been done to further narration above, but the present invention is not limited to above-mentioned embodiment in conjunction with the embodiments, in the ken that one skilled in the relevant art possesses, can also under the prerequisite that does not depart from aim of the present invention, makes a variety of changes.
Claims (6)
1. the corn field herbicide composition containing benzene azoles humulone, it is characterized in that, described composition active component is comprised of benzene azoles humulone, mesotrione and atrazine, and the weight ratio of benzene azoles humulone, mesotrione and atrazine is (0.5～40): (1～40): (5～80).
2. the corn field herbicide composition containing benzene azoles humulone according to claim 1, is characterized in that, the weight ratio of described benzene azoles humulone, mesotrione and atrazine is (1～30): (1～20): (5～50).
3. the corn field herbicide composition containing benzene azoles humulone according to claim 1 and 2, is characterized in that, the content sum of described benzene azoles humulone, mesotrione and atrazine is described composition total weight 5%～85%.
4. the corn field herbicide composition containing benzene azoles humulone according to claim 1 and 2, is characterized in that, the formulation of described composition is suspending agent, water dispersible granules, wetting powder or dispersibles oil-suspending agent.
5. the purposes of the corn field herbicide composition containing benzene azoles humulone according to claim 1 on control of maize field weed.
6. the purposes of the corn field herbicide composition containing benzene azoles humulone according to claim 5 on control of maize field grassy weed and broad leaved weed.
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| CN111436444A (en) * | 2020-05-29 | 2020-07-24 | 京博农化科技有限公司 | Pesticide composition containing topramezone, flufenacet and atrazine |
| CN111771892A (en) * | 2020-08-11 | 2020-10-16 | 合肥尚邦植保科技有限公司 | Weeding composition containing topramezone, mesotrione and terbuthylazine |
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| CN111955465A (en) * | 2020-07-20 | 2020-11-20 | 京博农化科技有限公司 | Weeding composition containing topramezone, mesotrione and bromoxynil octanoate and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111955466A (en) * | 2020-07-20 | 2020-11-20 | 京博农化科技有限公司 | Weeding composition containing topramezone, tembotrione and nicosulfuron, preparation and application |
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| CN111955465A (en) * | 2020-07-20 | 2020-11-20 | 京博农化科技有限公司 | Weeding composition containing topramezone, mesotrione and bromoxynil octanoate and application thereof |
| CN111771892A (en) * | 2020-08-11 | 2020-10-16 | 合肥尚邦植保科技有限公司 | Weeding composition containing topramezone, mesotrione and terbuthylazine |
| CN111771892B (en) * | 2020-08-11 | 2021-06-15 | 合肥尚邦植保科技有限公司 | Weeding composition containing topramezone, mesotrione and terbuthylazine |
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| CN104126590B (en) | 2016-06-22 |
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