CN105360140A - Corn field herbicide composition containing topramezone - Google Patents
Corn field herbicide composition containing topramezone Download PDFInfo
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- CN105360140A CN105360140A CN201510834375.2A CN201510834375A CN105360140A CN 105360140 A CN105360140 A CN 105360140A CN 201510834375 A CN201510834375 A CN 201510834375A CN 105360140 A CN105360140 A CN 105360140A
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- azoles humulone
- atrazine
- benzene
- weeds
- corn
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
Abstract
The invention relates to a herbicide composition, and in particular, relates to a ternary herbicidal composition composed of topramezone, atrazine and carfentrazone-ethyl; the weight ratio of the effective components of topramezone, atrazine and carfentrazone-ethyl in the composition is (0.375-6) to (22.5-360) to (0.5-8), and the weight percentage of the effective ingredients in the composition is 5-85%. The compound herbicide can be made into a wettable powder, a water dispersible granule, a dry suspending agent or a dispersible oil suspension agent and other conventional dosage forms. The herbicide composition can control and remove various weeds in a corn field simultaneously, significantly increases the control efficiency of the weeds of the corn field, has less effective ingredient amount, is low in use cost and safe to corn and later crops, and is an ideal herbicide.
Description
[technical field]
The invention belongs to technical field of pesticide, be specifically related to a kind of herbicidal composition containing benzene azoles humulone, for Control Weeds in Maize Field.
[background technology]
Corn is the important cereal crops of China, and be also important forage crop and the raw material of industry, along with the development of the industries such as livestock breeding, food processing industry, wine-making industry and biodiesel, the market demand of corn constantly increases.Corn field weed occurs general, and of a great variety, China's corn field common weed has: lady's-grass, eleusine indica, barnyard grass, green foxtail, Amaranthus retroflexus, kitchen garden, lamb's-quarters, acalypha copperleaf, piemarker, the rhizome of nutgrass flatsedge etc.When Maize Seedling is by Weed infestation, plant is short and small, and bar spire is yellow, causes middle and later periods corn growth bad, Severe Reduction.Therefore, in order to reduce the economic loss that crop smothering causes, reduce labor intensity, simultaneously also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control has been commonly people and has accepted, and becomes the main weeding system of corn field.In recent years, due to the abuse of weed killer herbicide, cause weeds to produce increasing resistance to agricultural chemicals, cause weed control efficacy to reduce year by year.Therefore, from the viewpoint of weed control and to corn safety two, China's corn field herbicide after seedling system also imperfection, needs to find other weed killer herbicide and supplements.
Benzene azoles humulone (Topramezone); other titles: benzene pyrazoles humulone, pyrrole grass sulphur, bud are defended; chemical name: 4-[3-(4,5-dihydro-isoxazole-3-base)-2-methyl-4-methyl sulphonyl]-1-methyl-5-hydroxyl-1H-pyrazoles, structural formula is:
Benzene azoles humulone belongs to Benzoyl-Pyrazolone class selective herbicide, it is HPPD inhibitor, after seedling, cauline leaf process is absorbed by root, seedling and leaf, in plant to top, base portion conducts to meristematic tissue, suppress the activity of 4-HPPD, the generation of remote-effects carotenoid, finally causes weeds withered.The weeds of benzene azoles humulone to glyphosate tolerant, triazines, acetolactate synthestase (ALS) inhibitor and acetyl-CoA carboxylase (ACCase) inhibitor have good preventive effect, it is broad-spectrum herbicide after seedling, can effectively prevent and kill off corn field annual gramineae and broad leaved weed, especially good preventive effect is had to grassy weed, invalid to sedge weed.
Atrazine (Atrazine), other titles: atrazine, grass purify, chemical name: the chloro-N of 6-
2-ethyl-N
4isopropyl-1,3,5-triazines-2,4-diamines, structural formula is:
Atrazine belongs to triazines selectivity inner-adsorption conduction-type herbicide, and based on Root Absorption, cauline leaf absorbs seldom, conducts to plant meristematic tissue and leaf portion after medicament is absorbed very soon, suppresses the photosynthesis of weeds, makes it withered.Atrazine is decomposed into innocuous substance by corn ketolase in the resistance crop bodies such as corn, thus to crop safety, be applicable to the dry crops such as corn, Chinese sorghum, sugarcane, fruit tree, nursery, forest land and prevent and kill off multiple annual gramineae and broad leaved weed, also certain inhibitory action is had to some perennial weed, but it is undesirable to the preventive effect of sedge family and part grassy weed, and the atrazine lasting period is long, coming into operation for many years, defines the pollution to the natural medium such as soil, water body.
Azoles humulone (Carfentrazone-ethyl), other titles: carfentrazoneethyl, carfentrazone, good fortune agriculture, soon go out spirit etc., chemical name: the chloro-3-of (RS)-2-[the chloro-5-of 2-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxygen-1H-1,2,4 triazol-1-yls)-4-fluorophenyl] ethyl propionate, structural formula is:
Azoles humulone belongs to triazolineone selectivity contact killing type weed killer herbicide, belong to proporphyrinogen oxidase inhibitor, namely cell membrane disruption is caused by suppressing the activity of proporphyrinogen oxidase in chlcrophyll biosynthesis process, make blade withered, dead rapidly, namely azoles humulone is absorbed by plant leaf blade in 15 minutes after spray medicine, do not drenched with rain and affect, after 3-4 hour just there is poisoning symptom in weeds, and 2-4 days dead.Azoles humulone half life period in soil is only several hours, therefore to second stubble crop safety, be mainly used in wheat, barley, paddy rice, seeding corn and other crops field prevent and kill off broad-leaved and sedge weed, especially to the weeds that sulfonylurea herbicide produces resistance, there is good activity, but invalid to grassy weed.
Existing a lot of bibliographical information crosses the Herbicidal combinations containing benzene azoles humulone or atrazine, such as:
Patent CN99807411.X has the Herbicidal mixture of synergistic effect, disclose Compound I a.33 (benzene azoles humulone) can respectively with atrazine or azoles humulone composite, but compositely between two still have part weeds not prevent and kill off, benzene azoles humulone and atrazine can effectively prevent and kill off grass family and broad leaved weed, but invalid to sedge weed; Benzene azoles humulone and azoles humulone is composite prevents and kill off corn field major part weeds, but poor to part broad leaved weed preventive effect;
Patent CN201110147719.4 mono-kind contains the Herbicidal combinations of azoles humulone and triazines, disclose the herbicidal composition of azoles humulone and atrazine, but said composition is undesirable to part grassy weed preventive effect;
Patent CN201110351762.2 discloses compound herbicide comprising nicosulfuron, atrazine and azoles humulone and preparation method thereof, not yet finds the herbicidal composition that benzene azoles humulone and atrazine and azoles humulone are composite.
In order to make up above each single dose and report the deficiency that complex preparation exists in actual application, the present inventor furthers investigate, unexpected discovery on the basis of the screening of a large amount of formula indoors and field control effectiveness test, benzene azoles humulone and atrazine and azoles humulone composite in certain ratio range, to corn field weed, there is excellent control efficiency, the preventive effect shown and activity level exceed the superposition of each component, there is unforeseeable synergistic function, solve that weed killer herbicide is alone to be composed in herbicide, the limitation that preventive effect and safety exist, reach and expand herbicide spectrum, improve preventive effect, improve the object of safety.
[summary of the invention]
The object of the invention is to the present situation according to current corn field herbicide, and corn field weed a situation arises, provide that a kind of broad weed-killing spectrum, herbicidal effect are good, use safety, be conducive to the herbicidal composition of the corn field weed comprehensive regulation.
Present invention employs following technical scheme: a kind of corn field herbicide composition, containing A, B and C tri-kinds of active components, wherein active components A is benzene azoles humulone, active component B is atrazine, active component C is azoles humulone.
Concrete, in described herbicidal composition, the weight ratio of active components A, B and C is: (0.375-6): (22.5-360): (0.5-8), be preferably: (0.375-3): (22.5-180): (0.5-4), more preferably: (1.1-2.6): (50-140): (1.1-3.2), further be preferably: (1.4-2.4): (65-125): (1.4-2.8), optimum weight ratio is: 2:95:2.
Present invention also offers the preparation containing above-mentioned composition, in described preparation, the weight percentage of active ingredient is 5-85%.
Described preparation is any one formulation agriculturally allowed, and is preferably wetting powder, water dispersible granules, dry suspending agent or dispersibles the various formulations of the applicable agricultural uses such as oil-suspending agent, being more preferably wetting powder.
In described preparation, also containing auxiliary agent, be specially one or more in dispersant, wetting agent, disintegrant, adhesive, thickener or carrier etc.
For wetting powder, can comprise by used additives: dispersant be selected from lignosulfonates, polycarboxylate, alkylnaphthalene sulfonate, neopelex, alkyl polyoxyethylene ether sulfonate or alkylphenol-polyethenoxy base ether formaldehyde condensation products etc. one or more; Wetting agent be selected from lauryl sodium sulfate, Teepol, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether or sorbitan fatty acid ester APEO etc. one or more; Carrier be selected from kaolin, diatomite, attapulgite, bentonite or white carbon etc. one or more.
For water dispersible granules, can comprise by used additives: dispersant be selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, alkylphenol polyoxyethylene or alkylphenol polyoxyethylene sulfonate etc. one or more; Wetting agent be selected from naphthalene sulfonate, aliphatic alcohol sulfate, dodecyl benzene sulfonate, lauryl sodium sulfate, fatty alcohol-polyoxyethylene ether or alkylsulfonate etc. one or more; Disintegrant be selected from ammonium sulfate, urea, corn starch and derivative thereof, low-substituted hydroxypropyl cellulose, polyvinylpyrrolidone or sodium alginate etc. one or more; Adhesive be selected from hydroxyethylcellulose, soluble starch, polyethylene glycol, methylcellulose, dextrin, fructose or polyvinyl alcohol etc. one or more; Carrier be selected from white carbon, kaolin, bentonite, diatomite, precipitated calcium carbonate, gypsum, attapulgite, urea or sucrose etc. one or more.
For dry suspending agent, can comprise by used additives: dispersant be selected from sodium lignin sulfonate, calcium lignosulfonate, polycarboxylate, alkylphenol polyoxyethylene formaldehyde condensation products, fatty alcohol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene succinate sulfonate etc. one or more; Wetting agent be selected from lauryl sodium sulfate, neopelex, Negel, Negel formaldehyde condensation products and alkylphenol-polyethenoxy base ether etc. one or more; Disintegrant be selected from urea, sodium chloride, sulphate, carbonate and sodium carboxymethylcellulose etc. one or more; Adhesive be selected from gelatin, gum Arabic, polyvinyl alcohol, polyethylene glycol and starch etc. one or more; Carrier be selected from white carbon, kaolin, bentonite, diatomite, precipitated calcium carbonate, gypsum, attapulgite, urea or sucrose etc. one or more.
For dispersibling oil-suspending agent, can comprise by used additives: dispersant be selected from methyl naphthalene sulfonic acid salt formaldehyde condensation products, polycarboxylate, lignosulfonates, TERSPERSE2425, alkylnaphthalene sulfonate etc. one or more; Wetting agent be selected from alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate etc. one or more; Emulsifier be selected from ethoxylated castor oil, Nongru-700 #, agriculture breast 2201, TERSPERSE4894, anhydrous sorbitol single-hard ester acid ester APEO etc. one or more; Thickener be selected from white carbon, hydroxyethylcellulose, sodium carboxymethylcellulose, polyvinyl alcohol, xanthans, aluminium-magnesium silicate etc. one or more; Defoamer can be silicone based defoamer; Cosolvent be selected from methyl alcohol, ethanol, dimethyl sulfoxide (DMSO) etc. one or more; Dispersion medium be selected from corn oil, soybean oil, rapeseed oil, methyl oleate etc. one or more.
Salt described in above-mentioned auxiliary agent such as polycarboxylate, lignosulfonates etc. are sodium salt or calcium salt.
The beneficial effect that herbicidal composition of the present invention possesses: (1) herbicidal composition of the present invention has synergistic function; (2) herbicidal composition of the present invention three kinds of active components are had complementary advantages, and to corn and succession crop safety, decrease the consumption of active ingredient simultaneously, reduce the adverse effect to environment; (3) herbicidal composition broad weed-killing spectrum of the present invention, disposablely can prevent and kill off the various weeds of corn field; (4) the herbicidal composition optimum period for applying fertilizer of the present invention extends, and herbicide is thorough; (5) herbicidal composition of the present invention can delay the generation of herbicide resistance, thus delays the succession speed of weed community.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearly understand, the following specific embodiment of the present invention is described, but is only limitted to this absolutely not.The following stated is the good embodiment of the present invention; only for describing the present invention; can not limitation of the present invention be interpreted as, it should be noted that any amendment done within the spirit and principles in the present invention, equivalent replacement and improve, all should be included within protection scope of the present invention.
Example of formulations 1:33% benzene azoles humulone atrazine azoles humulone wetting powder
Take 1% benzene azoles humulone, 31% atrazine, 1% azoles humulone, 7% calcium lignosulfonate, 6% lauryl sodium sulfate, 3% Teepol, bentonite complement to 100%, after mixing, through forward slip value, air-flow crushing, after mixing, obtain 33% benzene azoles humulone atrazine azoles humulone wetting powder.
Example of formulations 2:69% benzene azoles humulone atrazine azoles humulone wetting powder
Take 2.5% benzene azoles humulone, 65% atrazine, 1.5% azoles humulone, 10% Negel, 7% fatty alcohol-polyoxyethylene ether, white carbon complement to 100%, after mixing, through forward slip value, air-flow crushing, after mixing, obtain 69% benzene azoles humulone atrazine azoles humulone wetting powder.
Example of formulations 3:42% benzene azoles humulone atrazine azoles humulone water dispersible granules
Take 1% benzene azoles humulone, 40% atrazine, 1% azoles humulone, 8% alkylphenol polyoxyethylene, 8% sodium alkyl sulfate, 5% ammonium sulfate, 3% hydroxyethylcellulose, diatomite complements to 100%, after mixing, through forward slip value, air-flow crushing, after mixing, add water kneading, granulation, screening, obtains 42% benzene azoles humulone atrazine azoles humulone water dispersible granules.
Example of formulations 4:54% benzene azoles humulone atrazine azoles humulone water dispersible granules
Take 3% benzene azoles humulone, 50% atrazine, 1% azoles humulone, 6% polycarboxylic acids sodium, 4% neopelex, 2% low-substituted hydroxypropyl cellulose, 3% polyethylene glycol, attapulgite complement to 100%, after mixing, through forward slip value, air-flow crushing, after mixing, add water kneading, granulation, screening, obtains 54% benzene azoles humulone atrazine azoles humulone water dispersible granules.
Example of formulations 5:75% benzene azoles humulone atrazine azoles humulone dry suspending agent
Take 2% benzene azoles humulone, 70% atrazine, 3% azoles humulone, 5% calcium lignosulfonate, 4% Negel, 2% sodium carboxymethylcellulose, 0.5% starch, kaolin complements to 100%, after mixing, namely obtain 75% benzene azoles humulone atrazine azoles humulone dry suspending agent through sand milling, spraying dry.
Example of formulations 6:48% benzene azoles humulone atrazine azoles humulone dry suspending agent
Take 2% benzene azoles humulone, 42% atrazine, 4% azoles humulone, 5% fatty alcohol polyoxyethylene ether sulfate, 4% neopelex, 2% urea, 0.5% polyethylene glycol, diatomite water complements to 100%, after mixing, namely obtain 48% benzene azoles humulone atrazine azoles humulone dry suspending agent through sand milling, spraying dry.
Example of formulations 7:19% benzene azoles humulone atrazine azoles humulone dispersibles oil-suspending agent
Take 1% benzene azoles humulone, 17% atrazine, 1% azoles humulone, 9%TERSPERSE2425,7% alkylphenol-polyethenoxy base ether formaldehyde condensation products sodium sulphate, 3% agriculture breast 2201,0.3% xanthans, 1% dimethyl sulfoxide (DMSO), 0.15% silicone defoaming agent, deionized water complement to 100%, after mixing, disperse 19% benzene azoles humulone atrazine azoles humulone dispersibles oil-suspending agent through grinding or high speed shear.
Example of formulations 8:26% benzene azoles humulone atrazine azoles humulone dispersibles oil-suspending agent
Take 3% benzene azoles humulone, 22.5% atrazine, 0.5% azoles humulone, 8% polycarboxylic acids sodium, 5% sodium alkyl sulfate, 4% ethoxylated castor oil, 1% polyvinyl alcohol, 2% methyl alcohol, 0.2% silicone defoaming agent, deionized water complement to 100%, after mixing, disperse 26% benzene azoles humulone atrazine azoles humulone dispersibles oil-suspending agent through grinding or high speed shear.
Raw survey embodiment 1
The composite synergy mensuration of benzene azoles humulone, atrazine and azoles humulone and Herbicidal test
In order to prevent and kill off the corn field weed in agricultural production, the synergy that inventors performed benzene azoles humulone, atrazine and azoles humulone mutually composite is studied, adopt indoor pot method to carry out cauline leaf process, test 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 Colby method of instruction in the synergy mensuration of mixture.
1, reagent agent
The former medicine of 98% benzene azoles humulone
The former medicine of 95% atrazine
The former medicine of 95% azoles humulone
2, for examination weeds
Eleusine indica, Amaranthus retroflexus, the rhizome of nutgrass flatsedge
Cultivation for examination weeds adopts potted plant cultivation, by 11 × 12cm plastic basin, puts in shallow-water tank, by air-dry for the soil adopted back in the farmland not using weed killer herbicide, after sieving, fill basin, dry ground quantitatively to 4/5 place in basin, P in soil H value 7.0, the content of organic matter 1.2%.After making soil completely moistening by infiltrating irrigation mode bottom basin alms bowl, quantitatively broadcast sowing pretreated in soil surface for examination weed seed, according to seed size earthing 0.5cm-1.0cm, indoor temperature 28-32 DEG C/18-25 DEG C (d/n), relative moisture 75% ± 15%.Adopt infiltrating irrigation mode moisturizing bottom basin alms bowl in incubation, keep soil fully moistening.After weeds emerge, eleusine indica is decided to be 10 strains, Amaranthus retroflexus and the rhizome of nutgrass flatsedge are decided to be 5 strains.
3, experimental scheme
41 process are established in test altogether, wherein benzene azoles humulone establishes 0.375, 0.75, 1.5, 3, 5 the dosage process of 6ga.i./mu, atrazine establishes 22.5, 45, 90, 180, 5 the dosage process of 360ga.i./mu, azoles humulone establishes 0.5, 1, 2, 4, 5 the dosage process of 8ga.i./mu, benzene azoles humulone+atrazine+azoles humulone three is mixed establishes 0.375+22.5+0.5, 0.375+45+1, 0.375+90+2, 0.375+180+4, 0.375+360+8, 0.75+22.5+1, 0.75+45+2, 0.75+90+4, 0.75+180+8, 0.75+360+0.5, 1.5+22.5+2, 1.5+45+4, 1.5+90+8, 1.5+180+0.5, 1.5+360+1, 3+22.5+4, 3+45+8, 3+90+0.5, 3+180+1, 3+360+2, 6+22.5+8, 6+45+0.5, 6+90+1, 6+180+2, an auxiliary agent contrast is separately established in 25 the dosage ratio process of 6+360+4ga.i./mu, amount to 41 process, repeat 4 times.
4, test method
Be placed in spray tower when grass family and sedge weed 2-4 leaf phase, broad leaved weed 3-5 leaf and spray medicine (ASS-4 type pesticide spraying system, DG8003 shower nozzle, atomisation pressure 2.75MPa, spouting liquid 30Kg/ mu), treat that natural air drying is placed in greenhouse to cultivate and observe.
5, weedy rices and analytical method
After dispenser, the growth conditions of routine observation weeds, poisoning symptom and poisoning degree, record symptom of chemical damage, within after medicine 21 days, weigh acrial part fresh weight, calculate weeds survival rate E, and adopt the evaluation of Colby method to use the type of action of medicament with, inquire into the reasonability of proportioning further.
Check plot, E=treatment region weeds fresh weight × 100/ weeds fresh weight ... (1)
Colby method computing formula:
The weeds survival rate of weed killer herbicide A when X---consumption is P;
The weeds survival rate of weed killer herbicide B when Y---consumption is Q;
The weeds survival rate of weed killer herbicide C when Z---consumption is W;
E
0---the theoretical weeds survival rate of weed killer herbicide (A+B+C) when consumption is (P+Q+W);
E
0-E > 10% is synergistic effect; E
0-E <-10% is antagonism; E
0-E value is summation action between ± 10%.
6, results and analysis is in Table 1-3
Table 1 benzene azoles humulone, atrazine and azoles humulone mixture are to the actual measurement survival rate of eleusine indica and theoretical survival rate
Benzene azoles humulone, atrazine co-toxicity to eleusine indica mixed with azoles humulone: benzene azoles humulone and atrazine all have preventive effect to eleusine indica, the preventive effect of benzene azoles humulone to eleusine indica is better, atrazine is slightly poor to the preventive effect of eleusine indica, azoles humulone to eleusine indica to no effect, along with the increase of benzene azoles humulone and atrazine consumption, after mixed, the preventive effect of eleusine indica is improved.
Table 2 benzene azoles humulone, atrazine and azoles humulone mixture are to the actual measurement survival rate of Amaranthus retroflexus and theoretical survival rate
Benzene azoles humulone, atrazine co-toxicity to Amaranthus retroflexus mixed with azoles humulone: three kinds of active components are all effective to Amaranthus retroflexus, the preventive effect of atrazine to Amaranthus retroflexus is better, benzene azoles humulone is relative poor with the preventive effect of azoles humulone to Amaranthus retroflexus, along with the increase of atrazine consumption, after mixed, the preventive effect of Amaranthus retroflexus is improved.
Table 3 benzene azoles humulone, atrazine and azoles humulone mixture are to the actual measurement survival rate of the rhizome of nutgrass flatsedge and theoretical survival rate
Benzene azoles humulone, atrazine co-toxicity to the rhizome of nutgrass flatsedge mixed with azoles humulone: azoles humulone is better to the preventive effect of the rhizome of nutgrass flatsedge, and benzene azoles humulone is relative poor with the preventive effect of atrazine to the rhizome of nutgrass flatsedge, along with the increase of azoles humulone consumption, improves the preventive effect of the rhizome of nutgrass flatsedge after mixed.
Toxicity Determination result shows, benzene azoles humulone, atrazine and azoles humulone are at weight ratio (0.375-6): (22.5-360): in the scope of (0.5-8), mixed showing as weeds is added or synergistic effect, at weight ratio (0.375-3): (22.5-180): mixed in the scope of (0.5-4) have good synergistic effect, expand control of weeds spectrum, reach the object of simultaneously preventing and kill off corn field main weeds.
Raw survey embodiment 2:
The composite safety testing to corn of benzene azoles humulone, atrazine and azoles humulone
In order to study the mutually composite safety of benzene azoles humulone, atrazine and azoles humulone, inventor has done following test, and test is with reference to " People's Republic of China (PRC) agricultural industry criteria NY/T1155.8-2007 farm-chemical indoor determination experiment criterion-weed killer herbicide " the 8th part: the safety testing cauline leaf spray-on process of crop.
1, reagent agent
The former medicine of 98% benzene azoles humulone
The former medicine of 95% atrazine
The former medicine of 95% azoles humulone
2, for studying thing
Corn
Adopt greenhouse pot culture method for the cultivation studying thing, by 11 × 12cm plastic basin, put in shallow-water tank, by air-dry for the soil adopted back in the farmland not using weed killer herbicide, after sieving, fill basin, dry ground quantitatively to 4/5 place in basin, P in soil H value 7.0, the content of organic matter 1.2%.After making soil completely moistening from top-watered, corn seed is quantitatively broadcasted sowing in soil surface, according to seed size earthing 0.5cm-2.0cm, indoor temperature 28-32 DEG C/18-25 DEG C (d/n), relative moisture 75% ± 15%.Adopt infiltrating irrigation mode moisturizing bottom basin alms bowl in incubation, keep soil fully moistening.After emergence of corn, corn is decided to be 10 strains.
3, for examination weeds
Eleusine indica, lady's-grass, Amaranthus retroflexus, kitchen garden, the rhizome of nutgrass flatsedge
Cultivation for examination weeds adopts greenhouse pot culture method, by 11 × 12cm plastic basin, puts in shallow-water tank, by air-dry for the soil adopted back in the farmland not using weed killer herbicide, after sieving, fill basin, dry ground quantitatively to 4/5 place in basin, P in soil H value 7.0, the content of organic matter 1.2%.After making soil completely moistening by infiltrating irrigation mode bottom basin alms bowl, quantitatively broadcast sowing pretreated in soil surface for examination weed seed, according to seed size earthing 0.5cm-1.0cm, indoor temperature 28-32 DEG C/18-25 DEG C (d/n), relative moisture 75% ± 15%.Adopt infiltrating irrigation mode moisturizing bottom basin alms bowl in incubation, keep soil fully moistening.After weeds emerge, eleusine indica, lady's-grass are decided to be 10 strains, Amaranthus retroflexus, kitchen garden, the rhizome of nutgrass flatsedge are decided to be 5 strains.
4, experimental scheme
41 process are established in test altogether, wherein benzene azoles humulone establishes 0.6, 1.2, 2.4, 4.8, 5 the dosage process of 9.6ga.i./mu, atrazine establishes 30, 60, 120, 240, 5 the dosage process of 480ga.i./mu, azoles humulone establishes 0.75, 1.5, 3, 6, 5 the dosage process of 12ga.i./mu, benzene azoles humulone+atrazine+azoles humulone three is mixed establishes 0.375+22.5+0.5, 0.375+45+1, 0.375+90+2, 0.375+180+4, 0.375+360+8, 0.75+22.5+1, 0.75+45+2, 0.75+90+4, 0.75+180+8, 0.75+360+0.5, 1.5+22.5+2, 1.5+45+4, 1.5+90+8, 1.5+180+0.5, 1.5+360+1, 3+22.5+4, 3+45+8, 3+90+0.5, 3+180+1, 3+360+2, 6+22.5+8, 6+45+0.5, 6+90+1, 6+180+2, an auxiliary agent contrast is separately established in 25 the dosage ratio process of 6+360+4ga.i./mu, amount to 41 process, repeat 4 times.
5, test method
Spray medicine (ASS-4 type pesticide spraying system in spray tower is placed in during the leaf phase until corn 3-5 leaf phase, grass family and sedge weed 2-4 leaf phase, broad leaved weed 3-5, DG8003 shower nozzle, atomisation pressure 2.75MPa, spouting liquid 30Kg/ mu), treat after dispenser that natural air drying is placed in greenhouse to cultivate and observe.
6, crop investigation
After dispenser, investigate each process corn with or without symptom of chemical damage, if having, record symptom of chemical damage, grade in detail, within after medicine 21 days, measure each process corn fresh weight, calculate fresh weight inhibition, with the safety of clear and definite test medicine to corn.
Table 4 poisoning evaluation index
| Poisoning classification | Poisoning degree (%) | Result describes |
| 0 | 0 | Safety, without poisoning |
| 1 | 1-10 | Without obvious poisoning |
| 2 | 11-30 | Slight poisoning |
| 3 | 31-50 | Moderate poisoning |
| 4 | ＞50 | Serious poisoning |
7, weedy rices
After dispenser, periodical visual inspection observes the growth conditions of weeds, poisoning symptom and poisoning degree, record symptom of chemical damage.The fresh weight preventive effect adopting growth inhibition assay to calculate each process in after medicine 21 days.
Growth inhibition assay computing formula:
In formula:
E-fresh weight preventive effect, unit is percentage (%);
T
0-contrast weeds acrial part fresh weight, unit is gram;
T
1-process weeds acrial part fresh weight, unit is gram.
8, results and analysis:
Table 5 respectively processes the preventive effect to weeds and the poisoning classification to corn
Can find out that benzene azoles humulone atrazine azoles humulone mixture is compared with single dose by table 5, at weight ratio (0.375-6): (22.5-360): in (0.5-8) scope, preventive effect to corn field main weeds and the safety to corn all higher than single dose, to corn safety.
In sum, benzene azoles humulone atrazine bentazone or azoles humulone are composite within the specific limits significant synergistic effect, to crop safety, complex preparation is not only corn field and provides a kind of safe, practical weed killer herbicide, and greatly reduces the cost of enterprise and peasant household.
Raw survey embodiment 3
Control Weeds in Maize Field field control effectiveness test I:
1, test process
(1) 33% benzene azoles humulone atrazine azoles humulone wetting powder (3:22.5:0.5) 150g/ mu
(2) 33% benzene azoles humulone atrazine azoles humulone wetting powder (2.8:35:0.8) 150g/ mus
(3) 33% benzene azoles humulone atrazine azoles humulone wetting powder (2.6:50:1.1) 150g/ mus
(4) 33% benzene azoles humulone atrazine azoles humulone wetting powder (2.4:65:1.4) 150g/ mus
(5) 33% benzene azoles humulone atrazine azoles humulone wetting powder (2.2:80:1.7) 150g/ mus
(6) 33% benzene azoles humulone atrazine azoles humulone wetting powder (2:95:2) 150g/ mus
(7) 33% benzene azoles humulone atrazine azoles humulone wetting powder (1.7:110:2.4) 150g/ mus
(8) 33% benzene azoles humulone atrazine azoles humulone wetting powder (1.4:125:2.8) 150g/ mus
(9) 33% benzene azoles humulone atrazine azoles humulone wetting powder (1.1:140:3.2) 150g/ mus
(10) 33% benzene azoles humulone atrazine azoles humulone wetting powder (0.75:160:3.6) 150g/ mus
(11) 33% benzene azoles humulone atrazine azoles humulone wetting powder (0.375:180:4) 150g/ mus
(12) 30% benzene azoles humulone suspending agent 7g/ mus
(13) 48% atrazine wetting powder 206g/ mus
(14) 40% azoles humulone water dispersible granules 6g/ mus
(15) blank
10 process are established in test, repeat for 4 times, totally 40 process communities, and often process plot area 20 square metres, random district group arranges.(1)-(11) 33% benzene azoles humulone atrazine azoles humulone wetting powder is reagent agent, and (12)-(14) 30% benzene azoles humulone suspending agent, 48% atrazine wetting powder, 40% azoles humulone water dispersible granules are contrast medicament.Every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has eleusine indica, green foxtail, lady's-grass, kitchen garden, Amaranthus retroflexus, the rhizome of nutgrass flatsedge etc.
2, pilot project and method
(1) safety: after dispenser, the situation of growing of investigation corn, evaluates reagent agent to the safety of corn.
(2) herbicidal effect: every community gets 4 points at random, investigates 1/4 square metre at often, and after dispenser, 30 days investigation weed control efficacies, record weeds kind and strain number respectively, calculate weeds strain preventive effect.
(3) result of the test
Safety: dispenser " Invest, Then Investigate ", chemicals treatment district corn plant height, Ye Se and blank district are basically identical, show that reagent agent (1)-(11) 33% benzene azoles humulone atrazine azoles humulone wetting powder is all to corn safety.
Weeding result, in table 6:
Table 633% benzene azoles humulone atrazine azoles humulone wetting powder is to the preventive effect of corn field weed
Note: (1) 33% benzene azoles humulone atrazine azoles humulone wetting powder (3:22.5:0.5)
(2) 33% benzene azoles humulones atrazine azoles humulone wetting powder (2.8:35:0.8)
(3) 33% benzene azoles humulones atrazine azoles humulone wetting powder (2.6:50:1.1)
(4) 33% benzene azoles humulones atrazine azoles humulone wetting powder (2.4:65:1.4)
(5) 33% benzene azoles humulones atrazine azoles humulone wetting powder (2.2:80:1.7)
(6) 33% benzene azoles humulones atrazine azoles humulone wetting powder (2:95:2)
(7) 33% benzene azoles humulones atrazine azoles humulone wetting powder (1.7:110:2.4)
(8) 33% benzene azoles humulones atrazine azoles humulone wetting powder (1.4:125:2.8)
(9) 33% benzene azoles humulones atrazine azoles humulone wetting powder (1.1:140:3.2)
(10) 33% benzene azoles humulones atrazine azoles humulone wetting powder (0.75:160:3.6)
(11) 33% benzene azoles humulones atrazine azoles humulone wetting powder (0.375:180:4)
(12) 30% benzene azoles humulone suspending agents
(13) 48% atrazine wetting powders
(14) 40% azoles humulone water dispersible granules
(15) blank
As shown in Table 6,33% benzene azoles humulone atrazine azoles humulone wetting powder of different ratio between 85.08%-97.61%, is all better than contrast medicament 30% benzene azoles humulone suspending agent, 48% atrazine wetting powder, 40% azoles humulone water dispersible granules (weeds strain preventive effect is respectively 68.77%, 57.02% and 42.21%) to common weed strain preventive effect.Wherein benzene azoles humulone, atrazine and azoles humulone weight ratio are (0.375-3): (22.5-180): have obvious preventive effect to corn field common weed time (0.5-4), and weeds strain preventive effect is all more than 85%; Benzene azoles humulone, atrazine and azoles humulone weight ratio are (1.1-2.6): (50-140): better to corn field common weed preventive effect time (1.1-3.2), weeds strain preventive effect is all more than 90%; And benzene azoles humulone, atrazine and azoles humulone weight ratio when being 2:95:2 preventive effect especially up to 97.61%.Illustrate thus, benzene azoles humulone atrazine azoles humulone is at weight ratio (0.375-3): (22.5-180): in (0.5-4) scope, the weeds common to corn field have preventive effect, and this herbicidal composition is to corn safety.
Control Weeds in Maize Field field control effectiveness test II:
1, test process
(1) 5% benzene azoles humulone atrazine azoles humulone wetting powder (2:95:2) 990g/ mu
(2) 33% benzene azoles humulone atrazine azoles humulone wetting powder (2:95:2) 150g/ mus
(3) 75% benzene azoles humulone atrazine azoles humulone wetting powder (2:95:2) 66g/ mus
3 process are established in test, repeat for 4 times, totally 12 process communities, and often process plot area 20 square metres, random district group arranges.(1)-(3) benzene azoles humulone atrazine azoles humulone wetting powder is reagent agent, and every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has eleusine indica, green foxtail, lady's-grass, kitchen garden, Amaranthus retroflexus, the rhizome of nutgrass flatsedge etc.
2, pilot project and method
Herbicidal effect: every community gets 4 points at random, investigates 1/4 square metre at often, and after dispenser, 30 days investigation weed control efficacies, record weeds kind and strain number respectively, calculate weeds strain preventive effect.
3, result of the test: herbicidal effect is in table 7
After table 7 medicine, 30 days benzene azoles humulone atrazine azoles humulones are to the preventive effect of various weeds
Note: (1) 5% benzene azoles humulone atrazine azoles humulone wetting powder (2:95:2)
(2) 33% benzene azoles humulones atrazine azoles humulone wetting powder (2:95:2)
(3) 75% benzene azoles humulones atrazine azoles humulone wetting powder (2:95:2)
As shown in Table 7, when the weight ratio of benzene azoles humulone, atrazine and azoles humulone is 2:95:2, the benzene azoles humulone atrazine azoles humulone wetting powder of different content to common weed strain preventive effect all more than 97%, when showing that benzene azoles humulone, atrazine and azoles humulone weight ratio are optimal proportion, the herbicidal composition of different activities component content all has significant preventive effect to weeds.
In sum, instant component is reasonable, and preventive effect is better than activity when each component is used separately, all there is good preventive effect to corn field grass family, broad-leaved and sedge weed, expand herbicide spectrum, delayed the generation of herbicide resistance, to crop safety, meet the security requirement of pesticidal preparations.
Claims (9)
1. a herbicidal composition, it is characterized in that, said composition is made up of A, B and C tri-kinds of active components, wherein active components A is benzene azoles humulone, active component B is atrazine, active component C is azoles humulone, and the weight ratio of described active components A, B and C is: (0.375-6): (22.5-360): (0.5-8).
2. herbicidal composition according to claim 1, is characterized in that, the weight ratio of active components A, B and C is: (0.375-3): (22.5-180): (0.5-4).
3. herbicidal composition according to claim 2, is characterized in that, the weight ratio of active components A, B and C is: (1.1-2.6): (50-140): (1.1-3.2).
4. herbicidal composition according to claim 3, is characterized in that, the weight ratio of active components A, B and C is: (1.4-2.4): (65-125): (1.4-2.8).
5. herbicidal composition according to claim 2, is characterized in that, the weight ratio of active components A, B and C is: 2:95:2.
6. the herbicidal composition according to any one of claim 1-5, is characterized in that, the weight percentage of active component in herbicidal composition is 5-85%.
7. herbicidal composition according to claim 1, is characterized in that, described composition can be any one formulation agriculturally allowed.
8. herbicidal composition according to claim 7, is characterized in that, described combination dosage form is wetting powder, water dispersible granules, dry suspending agent or dispersibles oil-suspending agent.
9. herbicidal composition according to claim 1, the application in Control Weeds in Maize Field.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305346A (en) * | 1998-06-16 | 2001-07-25 | 巴斯福股份公司 | Herbicidal mixtures having synergistic effect |
| EP2014170A1 (en) * | 2007-07-09 | 2009-01-14 | Bayer CropScience AG | Herbicide combinations with special 3-(2-alkoxy 4-chlorine-6-alkyl-phenyl) substituted tetramates |
| CN103518739A (en) * | 2013-10-08 | 2014-01-22 | 王玉梅 | Herbicide containing topramezone and atrazine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305346A (en) * | 1998-06-16 | 2001-07-25 | 巴斯福股份公司 | Herbicidal mixtures having synergistic effect |
| EP2014170A1 (en) * | 2007-07-09 | 2009-01-14 | Bayer CropScience AG | Herbicide combinations with special 3-(2-alkoxy 4-chlorine-6-alkyl-phenyl) substituted tetramates |
| CN103518739A (en) * | 2013-10-08 | 2014-01-22 | 王玉梅 | Herbicide containing topramezone and atrazine |
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