CN104872162A - Topramezone-containing corn field weed control composition - Google Patents
Topramezone-containing corn field weed control composition Download PDFInfo
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Abstract
The invention discloses a topramezone-containing corn field weed control composition and application of the corn field weed control composition. The topramezone-containing corn field weed control composition is prepared from a first active component, a second active component and a third active component which are respectively 0.5-30% of topramezone, 0.5-25% of nicosulfuron and 5-80% of atrazine by weight percent. The composition can be prepared into agriculturally acceptable suspending agent, water dispersible granules, wettable powder or dispersible oil suspending agent. The topramezone-containing corn field weed control composition is reasonable in components and good in corn field weed control effect; the activity and the weed control effect of the corn field weed control composition are not a simple superposition of the activity of all the components; compared with the existing single preparation or binary composite preparation, the topramezone-containing corn field weed control composition has remarkable synergism besides remarkable weed control effect; the composition is less in consumption, large in herbicide controlling spectrum and good in safety for corns. The corn field weed control composition has a remarkable control effect for the weed of a corn field.
Description
Technical field
The present invention relates to a kind of cornfield weeding composition containing benzene azoles humulone, be made up of the first active component benzene azoles humulone, the second active component nicosulfuron, the 3rd active component atrazine and auxiliary agent, belong to technical field of compounded pesticide.
Background technology
Corn field weed occurs general, and weeds are of a great variety, mainly contain 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 the rhizome of nutgrass flatsedge etc.Corn field weed and corn fight for moisture, nutrient, illumination and space, affect the normal growth of Maize at Seedling Stage, and according to statistics, weeds generally make the corn underproduction 20% ~ 30%, the underproduction more than 40% time serious.People use chemical herbicide weeding always, but because most of weed killer herbicide herbicide spectrum own is limited, and Long-Time Service 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, be again benzene pyrazoles humulone, English name is topramezone, and chemical name is [3-(4,5-dihydro-3-isoxazolyl)-4-sulfonyloxy methyl-2-methylbenzene] 5-hydroxyl-1-methyl isophthalic acid H-pyrazoles-4-base) ketone, pyrazoline type herbicides.Broad weed-killing spectrum, has preventive effect to the most grassy weed of corn field and broad leaved weed, can effectively prevent and kill off green foxtail, eleusine indica, lamb's-quarters, knotweed, piemarker, kitchen garden, Siberian cocklebur, black nightshade etc.Can be absorbed by the blade of weeds, root and stem, and pass two-way leading up and down in plant corpus, the synthesis of remote-effects carotenoid, interference chloroplast synthesizes and function under light illumination, finally causes the serious albefaction of weeds lobus cardiacus, necrosis, and weeds are dead.At 20 DEG C, general spray medicine just can take effect for 2 ~ 4 days.Field trial shows, the corn (conventional field corn, sweet corn, pop corn, glutinous corn) of benzene azoles humulone to most type all shows extraordinary safety, being safest weed killer herbicide in domestic and international all after-seedling herbicide for maize kinds in the market, is also the herbicide after seedling that herbicide is fastest in the market.
Nicosulfuron (nicosulfuron), sulfonylurea herbicide, chemical name: 2-(4,6-dimethoxypyridin-2-base carbamido group sulphonyl)-N, N-dimethyl nicotinamide.Nicosulfuron is interior absorption, high efficiency corn weed killer herbicide, with effectively preventing and kill off multiple annual gramineous weed in corn field after low dosage bud, also has certain preventive effect to broad leaved weed and sedge weed.It is absorbed rapidly by leaf and root, and is conducted rapidly by xylem and phloem.The synthesis of branched-chain amino acid is stoped by acetolactate synthestase.Use rear weeds to stop growing immediately, 4 ~ 5 days young leaves fade, downright bad, and progressively expand to whole plant, under general condition, process plant death in 20 ~ 25 days.This medicine not only has cauline leaf process effect, also has activity of weeding before bud.Corn has good drug resistance to this medical instrument, occurs temporary transient chlorisis or slight hypoevolutism, but generally can recover rapidly and the not underproduction after process.
Atrazine, English name is atrazine, and chemical name is the chloro-4-ethylamino-of 2--6-isopropylamino-1,3,5-triazines.Before selectivity inner sucting conduction type seedling, herbicide after seedling, based on root absorption, cauline leaf absorbs seldom, is transmitted to rapidly plant meristematic tissue and leaf portion, and interference photosynthesis makes weeds lethal.In the resistance crop bodies such as corn, resolved into innocuous substance, thus to safety such as corns by corn ketolase.Its lasting period is longer, broad weed-killing spectrum, prevents and kill off corn field annual weed, mainly better to the preventive effect of corn field broad leaved weed.Atrazine easily by rainwater drip washing to soil comparatively deep layer, also effective to some dark root grass, but easily produce poisoning.When weeds generation density is higher, or when plant is larger, it is difficult to thoroughly kill weeds.
Although benzene azoles humulone, nicosulfuron, atrazine three all can use separately, all there is certain defect: benzene azoles humulone be used alone to lady's-grass and barnyard grass preventive effect undesirable, and price is high, is unfavorable for promoting; Although nicosulfuron can effectively prevent and kill off the annual gramineous weeds such as lady's-grass, green foxtail, eleusine indica, barnyard grass, general to some broad leaved weed preventive effects such as chickweed, Amaranthus retroflexus, piemarkers, and corn field Long-Time Service sulfonylurea herbicide, many weeds create resistance to it; When atrazine is used alone, dosage is large, to grassy weed weak effect, has certain influence to second stubble crop wheat and other broad leaf crops.In addition, although prior art have report can select two kinds in these three kinds of weed killer herbicides used in combination, but still have that narrow, the dosage of herbicide spectrum is large, to defects such as the anti-heterodynes of malignant weed, and prior art does not instruct the composite technology enlightenment that can address the aforementioned drawbacks of above three kinds of active components.
Applicant finds through test, by different for the mechanism of action benzene azoles humulone, nicosulfuron and atrazine, there is obvious synergistic effect, the control efficiency to corn field annual broadleaf weed and grassy weed can be significantly improved, expand control of weeds spectrum, can dosage be reduced, reduce cost accounting, high to corn safety.
Summary of the invention
The object of the present invention is to provide a kind of component reasonable, drug cost is low, and synergistic effect is remarkable, and herbicidal effect is good, has good control efficiency to corn field annual broadleaf weed and grassy weed, to the farm weeding composition of corn safety.
Another object of the present invention is to provide the cornfield weeding composition preparation formulation containing benzene azoles humulone.
Another object of the present invention is to provide the application of above-mentioned composition on control of maize field annual broadleaf weed and grassy weed.
For achieving the above object, the technical scheme that the present invention takes solves like this:
Containing a cornfield weeding composition for benzene azoles humulone, it is characterized in that,
A) the first active component: benzene azoles humulone;
B) the second active component: nicosulfuron;
C) the 3rd active component: atrazine.
The percentage by weight of three kinds of active components is: benzene azoles humulone 0.5% ~ 30%, nicosulfuron 0.5% ~ 25%, atrazine 5% ~ 80%.
The content sum of three kinds of active components is 6% ~ 85% of described composition total weight.
Preferred as technical scheme, three active component percentage by weights of described composition are: benzene azoles humulone 1% ~ 20%, nicosulfuron 1% ~ 15%, atrazine 20% ~ 70%.
The preparation formulation that a kind of cornfield weeding composition containing benzene azoles humulone of the present invention can be prepared according to the method that those skilled in the art of the present technique are known is suspending agent, water dispersible granules, wetting powder, dispersible oil-suspending agent.
To suspending agent, spendable auxiliary agent has: dispersant as polycarboxylate, lignosulfonates, alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol-polyethenoxy base ether phosphate, alkylphenol-polyethenoxy base ether sulfonate, phenethyl phenol polyethenoxy base ether phosphate, alkyl polyoxyethylene ether sulfonate, polyoxyethylene polyoxypropylene base ether block copolymers, to pull open in powder, alkylpolyoxyethylene phosphate one or more; Wetting agent as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, alkylnaphthalene sulfonate, alkyl phenol formaldehyde resin polyoxyethylene ether, triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer one or more; Thickener as in xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose one or more; Preservative as in formaldehyde, benzoic acid, Sodium Benzoate, potassium sorbate, isothiazolinone one or more; Defoamer is as one or more in silicone oil, silicone compound, C10-20 saturated fat acid compounds, C8-10 aliphatic alcohols, hexanol, butanols, octanol; Antifreezing agent as in ethylene glycol, propane diols, glycerine, polyethylene glycol, sorbierite, urea, inorganic salts 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 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.
To wetting powder, spendable auxiliary agent has: dispersant as in polycarboxylate, lignosulfonates, polyoxyethylene polyoxypropylene base ether block copolymers, alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol-polyethenoxy base ether phosphate, aliphatic alcohol polyoxyvinethene phosphate, alkylphenol-polyethenoxy base ether sulfonate one or more; Wetting agent as in alkyl sulfate, alkylsulfonate, alkylnaphthalene sulfonate one or more; Filler as ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
To dispersibling oil-suspending agent, spendable auxiliary agent has: 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 dish-60(common name: sorbitan monostearate), Tween-60 (common name: sorbitan fatty acid ester APEO), agriculture breast 1601#(common name: triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer), Huntsman Corporation of the TERSPERSE 4894(U.S. produces), Huntsman Corporation of the TERSPERSE 2500(U.S. produces) in one or more; Wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, Huntsman Corporation of the TERSPERSE 2500(U.S. produce) in 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.
Instant component is reasonable, and herbicidal effect is good, and drug cost is low, and its activity and herbicidal effect are not the simple superposition of each composition activity, but has significant synergistic effect, good to corn safety, meets the security requirement of pesticidal preparations.The present invention has significant control efficiency to corn field annual broadleaf weed and grassy weed.
Embodiment
Below by Toxicity Determination, the synergistic effect to corn field annual broadleaf weed and grassy weed of benzene azoles humulone, nicosulfuron and atrazine is described.
In order to control of maize field annual broadleaf weed and grassy weed, we have carried out mutual composite synergy with benzene azoles humulone, nicosulfuron and atrazine and have studied, and concrete grammar is:
Subjects be lady's-grass (
digitaria sanguinalis), barnyard grass (
echinochloa crusgalli), green foxtail (
setaria viridis), chenopodium glaucum linn (
chenopodium glaucum), pale persicaria (
polygonum lapathifolium), piemarker (
abutilon theophrasti), seed is collected in field, and germination rate is more than 85%.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 5 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 4/5 At The Height, the mode of infiltrating irrigation bottom basin alms bowl is adopted to make 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 cornfield weeding composition containing benzene azoles humulone provided by the invention to the activity of corn field 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.
Table 1 benzene azoles humulone, nicosulfuron and atrazine combine the Toxicity Determination to lady's-grass
Table 2 benzene azoles humulone, nicosulfuron and atrazine combine the Toxicity Determination to barnyard grass
Table 3 benzene azoles humulone, nicosulfuron and atrazine combine the Toxicity Determination to green foxtail
Table 4 benzene azoles humulone, nicosulfuron and atrazine combine the Toxicity Determination to chenopodium glaucum linn
Table 5 benzene azoles humulone, nicosulfuron and atrazine combine the Toxicity Determination to pale persicaria
Table 6 benzene azoles humulone, nicosulfuron and atrazine combine the Toxicity Determination to piemarker
Toxicity Determination result shows: benzene azoles humulone, nicosulfuron and atrazine are by weight being benzene azoles humulone 0.5% ~ 30%, nicosulfuron 0.5% ~ 25%, the ratio of atrazine 5% ~ 80% is used with, have good virulence to lady's-grass, barnyard grass, green foxtail, chenopodium glaucum linn, pale persicaria, piemarker, synergistic effect is obvious.
Below in conjunction with embodiment, content of the present invention is described further.
Example of formulations 1
Take 100 grams of benzene azoles humulones, 250 grams of nicosulfurons, 200 grams of atrazines, 30 grams of alkylpolyoxyethylene phosphates, 20 grams of phenethyl phenol polyethenoxy base ether phosphates, 5 grams of polyvinyl alcohol, 3 grams of xanthans, 40 grams of sodium chloride, 2 grams of formaldehyde, 10 restrain oneself alcohol, deionized water adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min, with sand mill sand milling to particle diameter D
90obtained 55% benzene azoles humulone nicosulfuron atrazine suspending agent after being less than 10 μm.
Example of formulations 2
Take 180 grams of benzene azoles humulones, 50 grams of nicosulfurons, 220 grams of atrazines, 30 grams of sodium lignin sulfonates, 30 grams of Negels, 5 grams of aluminium-magnesium silicates, 5 grams of bentonites, 40 grams of sorbierites, 2 grams of benzoic acid, 10 grams of silicone oil, deionized water adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min, with sand mill sand milling to particle diameter D
90obtained 45% benzene azoles humulone nicosulfuron atrazine suspending agent after being less than 10 μm.
Example of formulations 3
Take 200 grams of benzene azoles humulones, 100 grams of nicosulfurons, 500 grams of atrazines, 30 grams of alkyl naphthalene formaldehyde condensation product sodium sulfonates, 10 grams of Negels, 5 grams of bentonites, 20 grams of glycerine, 1 gram of Sodium Benzoate, 5 grams of butanols, deionized water adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min, with sand mill sand milling to particle diameter D
90obtained 80% benzene azoles humulone nicosulfuron atrazine suspending agent after being less than 10 μm.
Example of formulations 4
Take 10 grams of benzene azoles humulones, 40 grams of nicosulfurons, 800 grams of atrazines, 30 grams of sodium lignin sulfonates, 10 grams of Negels, 5 carats open powder BX(nekal), 5 grams of alkylsulfonates, 15 grams of polyethylene glycol, 10 grams of polyvinylpyrrolidones, potter's clay 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 produce 85% benzene azoles humulone nicosulfuron atrazine water dispersible granule.
Example of formulations 5
Take 300 grams of benzene azoles humulones, 150 grams of nicosulfurons, 300 grams of atrazines, 30 grams of Negels, 20 grams of GY-D06(polycarboxylates), 20 carats open powder BX(nekal), 20 grams of K-12(lauryl sodium sulfate), talcum powder 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 produce 75% benzene azoles humulone nicosulfuron atrazine water dispersible granule.
Example of formulations 6
Take 250 grams of benzene azoles humulones, 200 grams of nicosulfurons, 250 grams of atrazines, 25 grams of sodium lignin sulfonates, 20 grams of base sodium naphthalene sulfonates, 20 carats open powder BX(nekal), 15 grams of K-12(lauryl sodium sulfate), 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 produce 70% benzene azoles humulone nicosulfuron atrazine water dispersible granule.
Example of formulations 7
Take 150 grams of benzene azoles humulones, 80 grams of nicosulfurons, 400 grams of atrazines, 30 grams of alkylphenol-polyethenoxy base ether phosphates, 20 grams of sodium alkyl sulfates, kaolin fills up the weight portion to 1000 grams.Above-mentioned raw materials is prepared into 63% benzene azoles humulone nicosulfuron atrazine wetting powder through mixing, ultra micro air-flow crushing, hybrid technique step.
Example of formulations 8
Take 80 grams of benzene azoles humulones, 140 grams of nicosulfurons, 280 grams of atrazines, 40 grams of aliphatic alcohol polyoxyvinethene phosphates, 15 grams of Negels, glucose fills up the weight portion to 1000 grams.Above-mentioned raw materials is prepared into 50% benzene azoles humulone nicosulfuron atrazine wetting powder through mixing, ultra micro air-flow crushing, hybrid technique step.
Example of formulations 9
Take 20 grams of benzene azoles humulones, 40 grams of nicosulfurons, 600 grams of atrazines, 30 grams of sodium lignin sulfonates, 20 grams of sodium alkyl sulfonates, talcum powder fills up the weight portion to 1000 grams.Above-mentioned raw materials is prepared into 66% benzene azoles humulone nicosulfuron atrazine wetting powder through mixing, ultra micro air-flow crushing, hybrid technique step.
Example of formulations 10
Take 50 grams of benzene azoles humulones, 220 grams of nicosulfurons, 230 grams of atrazines, 30 grams of agriculture breasts, 2201,30 grams of sodium naphthalene sulfonates, 20 grams of polycarboxylic acids sodium, 30 grams of silicon bentonites, 40 grams of urea, little wheat oil adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min, dispersibles oil-suspending agent with 50% benzene azoles humulone nicosulfuron atrazine obtained after sand mill sand milling.
Example of formulations 11
Take 70 grams of benzene azoles humulones, 180 grams of nicosulfurons, 100 grams of atrazines, 30 grams of phenethyl phenol polyoxyethylene poly-oxygen propylene aethers, 20 grams of alkylphenol polyoxyethylene phosphates, 30 grams of Negels, 30 grams of aluminium-magnesium silicates, 50 grams of glycerine, mineral oil adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min, dispersibles oil-suspending agent with 35% benzene azoles humulone nicosulfuron atrazine obtained after sand mill sand milling.
Example of formulations 12
Take 5 grams of benzene azoles humulones, 5 grams of nicosulfurons, 50 grams of atrazines, 40 grams of sorbitan monostearates, 30 grams of alkylphenol-polyethenoxy base ether formaldehyde condensation products sodium sulphate, 30 grams of calcium lignosulfonates, 30 grams of bentonites, 50 grams of propane diols, soybean oil adds to 1000 gram weight parts.Above-mentioned raw materials is through mixing, and high speed shear dispersion 30min, dispersibles oil-suspending agent with 6% benzene azoles humulone nicosulfuron atrazine obtained after sand mill sand milling.
Biological Examples: control of maize field weed field control effectiveness test.
Inventor has carried out example of formulations 9(66% benzene azoles humulone nicosulfuron atrazine wetting powder in 2014 in Wugong County, Xianyang, Shanxi province city) control of maize field weed field control effectiveness test, demonstrate the control efficiency of this medicament to corn field weed and the safety to corn.Trial crops is corn, and controlling object is corn field annual broadleaf weed and grassy weed (lady's-grass, barnyard grass, green foxtail, chenopodium glaucum linn, pale persicaria, piemarker), and weed size is in 2 ~ 5 leaf phases.Test is located at Wugong County, and experimental field physical features is smooth, and soil is loam, middle fertility, pH value 6.9, 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.
Table 7 control of maize field weed field control effectiveness test result
Field test results shows, 66% benzene azoles humulone nicosulfuron atrazine wetting powder has good control efficiency to corn field weed, preparation is by 60 grams/acre, 65 grams/acre, spray 1 time for 70 grams/acre, 98.48% is respectively to the average preventive effect of 20 days after corn field weed medicine, 99.16%, 99.62%, obviously be better than 30% benzene azoles humulone nicosulfuron wetting powder 15 grams/acre, 33% benzene azoles humulone atrazine dispersibles oil-suspending agent 50 grams/acre, 52% nicosulfuron atrazine wetting powder 70 grams/acre, 30% benzene azoles humulone suspending agent 6 grams/acre, 75% water dispersible granule of nicosulfuron 4 grams/acre, the preventive effect of 50% atrazine suspending agent 150 grams/acre.By to significance of difference analysis in 20 days after medicine, between triple combination and other control treatment, preventive effect difference reaches pole significance level.
Security survey, duration of test is observed, and all reagent agents, to corn growth safety, occur without poisoning phenomenon.
From above embodiment, benzene azoles humulone, nicosulfuron and atrazine three kinds of active components according to percentage by weight are: benzene azoles humulone 0.5% ~ 30%, nicosulfuron 0.5% ~ 25%, atrazine 5% ~ 80% carries out composite, can be made into suspending agent, water dispersible granules, wetting powder, dispersible oil-suspending agent, significant control efficiency is had to corn field annual broadleaf weed and grassy weed, synergistic effect is obvious, reduce dosage and drug cost, and it is good to corn safety, it is the favourable agents of control of maize field annual broadleaf weed and grassy weed, therefore have wide practical use on producing.
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, and there is significant synergistic effect, control of weeds spectrum expands, cost accounting reduces, good to corn safety, meets the security requirement of pesticidal preparations.
Claims (6)
1. the cornfield weeding composition containing benzene azoles humulone, it is characterized in that, active ingredient is made up of the first active component benzene azoles humulone, the second active component nicosulfuron and the 3rd active component atrazine, the percentage by weight of the first active component, the second active component and the 3rd active component is: benzene azoles humulone 0.5% ~ 30%, nicosulfuron 0.5% ~ 25%, atrazine 5% ~ 80%.
2. according to claim 1 containing the cornfield weeding composition of benzene azoles humulone, it is characterized in that, the percentage by weight of the first active component, the second active component and the 3rd active component is: benzene azoles humulone 1% ~ 20%, nicosulfuron 1% ~ 15%, atrazine 20% ~ 70%.
3., according to claim 1 containing the cornfield weeding composition of benzene azoles humulone, it is characterized in that, the content sum of the first active component, the second active component and the 3rd active component is 6% ~ 85% of described composition total weight.
4., according to claim 1 containing the cornfield weeding composition of benzene azoles humulone, it is characterized in that, described combination dosage form is suspending agent, water dispersible granules, wetting powder, dispersible oil-suspending agent.
5. according to claim 1 containing the purposes of cornfield weeding composition on control of maize field weed of benzene azoles humulone.
6. purposes according to claim 5, corn field weed comprises annual broadleaf weed and grassy weed.
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| CN105409999A (en) * | 2015-12-24 | 2016-03-23 | 安徽美兰农业发展股份有限公司 | Topramezone, nicosulfuron and atrazine compounded dispersible oil-based suspension agent and preparation method thereof |
| CN106070282A (en) * | 2016-07-13 | 2016-11-09 | 山东奥坤生物科技有限公司 | A kind of Herbicidal combinations containing topramezone and application thereof |
| US20230139897A1 (en) * | 2021-11-03 | 2023-05-04 | Rotam Agrochem International Company Limited | Solid herbicide composition and the use thereof |
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| CN105284855A (en) * | 2015-12-11 | 2016-02-03 | 河北博嘉农业有限公司 | Herbicide composition and application thereof |
| CN105409999A (en) * | 2015-12-24 | 2016-03-23 | 安徽美兰农业发展股份有限公司 | Topramezone, nicosulfuron and atrazine compounded dispersible oil-based suspension agent and preparation method thereof |
| CN106070282A (en) * | 2016-07-13 | 2016-11-09 | 山东奥坤生物科技有限公司 | A kind of Herbicidal combinations containing topramezone and application thereof |
| US20230139897A1 (en) * | 2021-11-03 | 2023-05-04 | Rotam Agrochem International Company Limited | Solid herbicide composition and the use thereof |
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| CN104872162B (en) | 2017-06-06 |
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