CN105660661B - A kind of cornfield weeding composition and its application method - Google Patents
A kind of cornfield weeding composition and its application method Download PDFInfo
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- CN105660661B CN105660661B CN201610158164.6A CN201610158164A CN105660661B CN 105660661 B CN105660661 B CN 105660661B CN 201610158164 A CN201610158164 A CN 201610158164A CN 105660661 B CN105660661 B CN 105660661B
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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
- A01N43/82—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 three ring hetero atoms
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
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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
- A01N43/64—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
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- Pest Control & Pesticides (AREA)
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- Engineering & Computer Science (AREA)
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- Agronomy & Crop Science (AREA)
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Abstract
A kind of cornfield weeding composition and its application method, the present invention relates to pesticide herbicide and its application methods, and the present invention is to solve the big technical problems of existing corn field herbicide residual quantity.The cornfield weeding composition of the present invention is made of flufenacet, amicarbazone and auxiliary agent, and the weight percent of wherein flufenacet is 1%~20%, the weight percent of amicarbazone is 1%~30%, remaining is auxiliary agent.The cornfield weeding composition of the present invention after dispenser 30 days, almost degrade completely, to crop and Environmental security, can be used for cornfield weeding by the drug in soil.
Description
Technical field
The invention belongs to pesticide weeding technique fields.
Background technology
The country's most widely used herbicide of corn field is atrazine at present, since its is of low cost, effect is preferable, is had very
Big advantage.But atrazine molecular structure stabilized, not degradable after use, the experimental results show in used water body
With have detection in soil, certain harm can be generated after long-time service to water, environment, soil and animal, especially as one
Kind Environmental Hormone, it has been found that it can have an impact the growth and breeding of aquatile, it is possible to create reaction of degeneration (RD) is people
The potential carcinogenic substance of class.Amicarbazone (Amicarbazone) is a kind of triazolineone herbicide, which can effectively prevent and kill off
Corn field broad leaved weed, and can and part grassy weed be removed, while to corn safety.But recently as the company of herbicide
Year application, the weed community in farmland are also changed therewith, some disadvantage weeds have been gradually increasing as dominant weed, pernicious difficulty
Anti- weeds, therefore some technologies compounded using amicarbazone and other pesticides are produced, such as Publication No. CN
The Chinese invention patent of 103283779 A《A kind of composition pesticide containing amicarbazone》Disclose amicarbazone and glyphosate,
Appointing in dimethyl tetrachloride sodium, ametryn, atrazine, diuron, 2,4D- butyl esters and Acetochlor, isopropyl methoxalamine, nicosulfuron
Anticipate it is a kind of being used as active constituent, to the malignant weeds such as tribulus terrestris grass, Chinese herbaceous peony Brachiaria Griseb, Bermuda grass, the rhizome of nutgrass flatsedge to kill off effect excellent
It is different, but this contains the composition pesticide of amicarbazone there are amicarbazone residual quantity is big, poisoning to chief crop, second stubble crop and
The influence caused by ambient enviroment, there are certain safety risks.
Invention content
The present invention is to solve the big technical problems of the residual quantity of existing corn field herbicide, and provide a kind of corn field
Herbicidal combinations and its application method.
The cornfield weeding composition of the present invention is made of flufenacet, amicarbazone and auxiliary agent, wherein flufenacet
Weight percent is 1%~20%, the weight percent of amicarbazone is 1%~30%, remaining is auxiliary agent.
The application method of Herbicidal combinations provided by the invention is used for using the method for cauline leaf spraying treatment after maize seedling
Prevent and kill off corn field annual grassy weeds.
Cornfield weeding composition provided by the invention has the advantages that.
1, cornfield weeding composition of the invention is easy degradation in the soil, and after dispenser 30 days, the drug in soil is several
Degradation is complete, to crop and Environmental security.
2, cornfield weeding composition provided by the invention, by the synergistic function of component, the prevention of composition is imitated
Fruit is significantly improved than single dose, while reducing Pesticide use dosage and cost.
3, Herbicidal combinations provided by the invention, herbicide controlling spectrum is extensive, can prevent and kill off corn field annual broadleaf weed and grass
Section weeds, delay drug resistance to generate, and the lasting period is long, extend the service life of medicament.
The Herbicidal combinations of the present invention are efficient one kind, low toxicity, inexpensive, quick-acting is good, and the lasting period is long, is conducive to jade
The Herbicidal combinations of rice field annual grassy weeds comprehensive treatment.
Specific implementation mode
Specific implementation mode one：The cornfield weeding composition of present embodiment is by flufenacet, amicarbazone and auxiliary agent
Composition, the weight percent of wherein flufenacet is 1%~20%, the weight percent of amicarbazone is 1%~30%, remaining
For auxiliary agent.
Specific implementation mode two：The present embodiment is different from the first embodiment in that the cornfield weeding combination
The weight percent of flufenacet is 10%~18% in object, the weight percent of amicarbazone is 20%~28%, remaining is
Auxiliary agent.It is other same as the specific embodiment one.
Specific implementation mode three：The present embodiment is different from the first and the second embodiment in that the cornfield weeding
Composition is type water dispersable granules, oil-suspending agent type or wettable powder dosage form.It is other the same as one or two specific embodiments.
Specific implementation mode four：Present embodiment type water dispersable granules described unlike specific implementation mode three are beautiful
Rice field weeding composition or wettable powder cornfield weeding composition are careless by 1%~20% fluorine thiophene by weight percentage
Amine, 1%~30% amicarbazone, 1%~10% diffusant and 1%~10% wetting agent and the carrier composition of surplus.
It is other to be the same as the specific implementation mode 3.
Specific implementation mode five：Present embodiment diffusant described unlike specific implementation mode four is dodecane
Base benzene sulfonic acid sodium salt, lauryl sodium sulfate, lignosulfonates, aliphatic alcohol sulfate, aliphatic alcohol polyethenoxy, butyl naphthalene sulfonic acids
Sodium, alkyl phenol polyoxyethylene ether, naphthalenesulfonate formaldehyde condensation compound and one kind in polycarboxylic acid substance or in which several combinations；
It is other identical as specific implementation mode four.
In present embodiment, when diffusant is composition, each diffusant presses any combination.
Specific implementation mode six：Present embodiment wetting agent described unlike specific implementation mode four is dodecane
Base benzene sulfonic acid sodium salt, lauryl sodium sulfate, lignosulfonates, aliphatic alcohol sulfate, aliphatic alcohol polyethenoxy, butyl naphthalene sulfonic acids
Sodium, alkane institute base phenol polyethenoxy ether, naphthalenesulfonate formaldehyde condensation compound and one kind in polycarboxylic acid substance or in which several groups
It closes；It is other identical as specific implementation mode four.
In present embodiment, when wetting agent is composition, each wetting agent presses any combination.
Specific implementation mode seven：Carrier unlike one of present embodiment and specific implementation mode four to six is kaolinite
One kind in soil, attapulgite, bentonite, diatomite, talcum powder, precipitated calcium carbonate, urea and white carbon or in which several
Combination；It is other identical as one of specific implementation mode four to six.
In present embodiment, when carrier is composition, each carrier presses any combination.
Specific implementation mode eight：Present embodiment and oil-suspending agent cornfield weeding group unlike specific implementation mode three
Close object by weight percentage by 1%~20% flufenacet, 1%~30% amicarbazone, 1%~20% emulsifier,
The carrier of 0%~5% antifoaming agent, 0%~5% antifreezing agent and surplus forms.It is other to be the same as the specific implementation mode 3.
Specific implementation mode nine：Present embodiment is detergent alkylate sulphur from emulsifier unlike specific implementation mode eight
Sour calcium, fatty alcohol polyoxyethylene ether, phenethyl phenylol polyoxyethylene ether, lignosulfonates, alkyl phenol polyoxyethylene ether or
Its phosphate, aerosol-OT salt, emulsifier Geronol vo/02z, alkylnaphthalene sulfonate formaldehyde condensation products and poly-
One kind in carboxylic-acid substance or in which several combinations；It is other identical as specific implementation mode eight.
Specific implementation mode ten：Present embodiment antifoaming agent unlike specific implementation mode eight or nine is epoxy soybean
Oil；It is other identical as specific implementation mode eight or nine.
Specific implementation mode 11：Antifreezing agent unlike one of present embodiment and specific implementation mode eight to ten is second
Glycol, propylene glycol or glycerine；It is other identical as one of specific implementation mode eight to ten.
Specific implementation mode 12：Present embodiment load described unlike specific implementation mode eight to one of 11
Body be organobentonite, white carbon, refined soybean oil, corn oil, rapeseed oil, turpentine oil, coconut oil, palm oil, methyl oleate,
One kind in methyl naphthalene higher aliphatic hydrocarbon ils or in which several combinations.It is other with eight to one of 11 phase of specific implementation mode
Together.
In present embodiment when carrier is organic matter, each carrier presses any combination.
Specific implementation mode 14：The application method of cornfield weeding composition described in specific implementation mode one is to use
Cauline leaf spraying treatment after maize seedling.
The application method of present embodiment is for preventing and kill off corn field annual grassy weeds.
Beneficial effects of the present invention are illustrated with the following Examples.
Embodiment 1：The oil-suspending agent cornfield weeding composition of the present embodiment is careless by 14% fluorine thiophene by weight percentage
Amine, 21% amicarbazone, 15% emulsifier Geronol vo/02z, 50% methyl oleate composition.It is outstanding to be denoted as 35% oil
Floating agent.Emulsifier Geronol vo/02z are commercial product in the present embodiment.
Embodiment 2：The wettable powder cornfield weeding composition of the present embodiment by weight percentage by 16% fluorine thiophene
Careless amine, 24% amicarbazone, 6% dispersing agent NNO and 2% lauryl sodium sulfate and 52% diatomite composition.It is denoted as
40% wettable powder.Dispersing agent NNO is commercial product in the present embodiment.
Embodiment 3：The type water dispersable granules cornfield weeding composition of the present embodiment by weight percentage by 16% fluorine
Fenacet, 24% amicarbazone, the wetting agent KDS95 of 4% diffusant G180 and 2% and 54% precipitated calcium carbonate composition.
It is denoted as 40% water dispersible granules.Diffusant G180 is purchased from Beijing Guang Yuan Yi Nong Co., Ltds, wetting agent KDS95 purchases in the present embodiment
In Huntsman Corporation, they belong to polycarboxylic acid substance.
Cornfield weeding composition prepared by embodiment 3 carries out following tests.
Experiment one：The test of pesticide effectiveness
Cell method of comparison is taken in this experiment, and RANDOMIZED BLOCK DESIGN, totally six processing, one compares, and repeats three times, processing 1,
2,3 40% water dispersible granules prepared for embodiment 3, dosage is respectively 90g/ mus, 100g/ mus, 110g/ mus；Processing 4 is 40%
Flufenacet wettable powder, dosage are 40g/ mus；Processing 5 is 70% amicarbazone water dispersible granules, and dosage is 45g/ mus；Place
Reason 6 is 90% atrazine water dispersible granule, and dosage is 110g/ mus.Each processing number of weeds amount and preventive effect are counted and compared after 30 days,
Estimate corn safety simultaneously.Test result is shown in Table 1.
Table 1, cornfield weeding composition field efficacy experimental result
The Herbicidal combinations that can be seen that this experiment from 1 test result of table are bright to the preventive effect of grassy weed, broad leaved weed
Drug effect when showing higher than 40% flufenacet wettable powder, the use of 70% amicarbazone water dispersible granules single dose, when dosage is
Average preventive effect reaches 93.4% at 90g/ mus, also above 6 group of 90% atrazine water dispersible granule drug effect of processing.The results show that
40% water dispersible granules Herbicidal combinations apply it is preferable in cornfield weeding effect, mainly since the Herbicidal combinations are widened
Herbicide controlling spectrum improves whole preventing weeding weeds effect by the synergistic effect of each component in Herbicidal combinations.Especially to corn
The difficult anti-weeds excellent effects such as Tanaka piemarker, lamb's-quarters, wild amaranth, Siberian cocklebur.
Experiment two：Pedo relict is tested
One, it samples：In each cell dispenser 0h, 30d of experiment one, with random multipoint system acquisition soil (0~10cm)
Pedotheque is removed impurity removing by 2kg, and 1mm is crossed after fully milling and sieves mixing, is respectively kept sample 250g by quartering, all samples are moulded
Material bag encapsulation, number, -20 DEG C or less low temperature refrigerators preserve to be measured.
Two, pre-treatment：
1, in sample flufenacet extraction and purification
20g samples are weighed, 5-10mL water and 50mL acetonitriles, shaken overnight is added.It filters and uses 10mL acetonitrile filter residues.Filtrate
It is transferred in 500mL separatory funnels, with the sodium chloride solution filter wash bottle of 50mL3%.It is cleaned, is abandoned twice with 40mL petroleum extns filtrate
Go the impure petroleum ether phase in upper layer.Then filtrate pH to 3-4 is adjusted with dilute hydrochloric acid.Twice with 50mL dichloromethane extraction filtrate,
Divide and remove layer dichloromethane phase and cross the dehydration of anhydrous sodium sulfate column, merging filtrate is in bottom of bottle flask.Rotary evaporation in 45 DEG C of water-baths
Instrument is concentrated into 1-2mL, and nitrogen evaporator drying is to be measured with methanol constant volume to 2mL.
2, in sample amicarbazone extraction and purification
20g samples are weighed, 5-10mL water and 50mL methanol, shaken overnight is added.It filters and uses 10mL methanol filter residues.Filtrate
It is transferred in 500mL separatory funnels, with the sodium chloride solution filter wash bottle of 50mL3%.It is cleaned, is abandoned twice with 40mL petroleum extns filtrate
Go the impure petroleum ether phase in upper layer.Then filtrate pH to 3-4 is adjusted with dilute hydrochloric acid.Twice with 50mL dichloromethane extraction filtrate,
Divide and remove layer dichloromethane phase and cross the dehydration of anhydrous sodium sulfate column, merging filtrate is in bottom of bottle flask.Rotary evaporation in 45 DEG C of water-baths
Instrument is concentrated into 1-2mL, and nitrogen evaporator drying is to be measured with methanol constant volume to 2mL.
3, in sample atrazine extraction and purification
20g samples are weighed, 5-10mL water and 50mL acetone, shaken overnight is added.It filters and uses 10mL acetone filter residues.Filtrate
It is transferred in 500mL separatory funnels, with the sodium chloride solution filter wash bottle of 50mL3%.It is cleaned, is abandoned twice with 40mL petroleum extns filtrate
Go the impure petroleum ether phase in upper layer.Then filtrate pH to 3-4 is adjusted with dilute hydrochloric acid.Twice with 50mL dichloromethane extraction filtrate,
Divide and remove layer dichloromethane phase and cross the dehydration of anhydrous sodium sulfate column, merging filtrate is in bottom of bottle flask.Rotary evaporation in 45 DEG C of water-baths
Instrument is concentrated into 1-2mL, and nitrogen evaporator drying is settled to 2mL with acetone, to be measured.
Three, analysis condition：
1, flufenacet liquid phase chromatogram condition
Detector：SPD-10AVP
Wavelength：225nm
Chromatographic column：4.6mm×250mm×5μm,C18Filler
Mobile phase：Acetonitrile：Water=70:30
Flow velocity：1.0mL/min
Sample size：10μL
2, amicarbazone liquid phase chromatogram condition
Detector：SPD-10AVP
Wavelength：225nm
Chromatographic column：4.6mm×200mm×5μm,C18Filler
Mobile phase：Methanol：Water=70:30
Flow velocity：0.8mL/min
Sample size：10μL
3, atrazine GC conditions
Detector：FID
Chromatographic column：0.32mm × 2m × 250 μm, 5%SE50Filler
Detect temperature：250 DEG C of vaporizer, 250 DEG C of detector, 215 DEG C of column temperature
Gas flow rate：N2(carrier gas)：50mL/min；H2：40mL/min；Air：400mL/min；
Sample size：2μL
4, the drafting of standard curve
0.005,0.01,0.05,0.1, the 0.5 and 1mg/ of flufenacet standard solution of various concentration is prepared with methanol respectively
L is measured under above-mentioned liquid spectral condition, and with linear regression equation y=a+bx, finding out equation of linear regression is：Y=32.83x-
0.049, correlation coefficient r=0.9996
0.005,0.01,0.05,0.1, the 0.5 and 1mg/ of amicarbazone standard solution of various concentration is prepared with methanol respectively
L is measured under above-mentioned liquid spectral condition, and with linear regression equation y=a+bx, finding out equation of linear regression is：Y=180.94x-
1.13, correlation coefficient r=0.9987
Respectively with acetone prepare various concentration atrazine standard solution 0.01,0.05,0.1,0.5,1mg/L, above-mentioned
It is measured under gas spectral condition, with linear regression equation y=a+bx, finding out equation of linear regression is：Y=44.0x-0.286, phase relation
Number r=0.9982
5, retention time
Flufenacet：10.8min
Amicarbazone：4.4min
Atrazine：3.7min
Four, calculation formula
In formula：R:Pesticide residual concentration (mg/kg) in sample
Q:The concentration (mg/L) of standard sample
S1:The peak area of sample solution
S2:The peak area of standard sample
V:The constant volume (mL) of sample
W:Claim sample weight (g)
Five, test result
Residue test the results are shown in Table 2, as can be seen from the test results after dispenser 0h, handles and is detected in 1,2,3 soil
Flufenacet, amicarbazone；It handles in 6 soil and detects atrazine；After dispenser 30d, handles in 1~3 soil and fluorine is not detected
Fenacet, amicarbazone；And it handles in 6 soil and detects minimal amount of atrazine, residual content 1.0966mg/kg.
Detecting Pesticide (mg/kg) in table 2, sample
Amicarbazone, flufenacet is not detected after dispenser 30d in the soil.
It is observed that in the experiment of each cell, corn grows fine in entire breeding time, blade and plant have no any scab,
The symptoms such as distortion, deformity.Sensitive crop rape is sowed in second year, test block, 20 days after rape emergence, 40 days investigation residual medicines
Evil situation, processing 1~5 each cell rice shoots of processing grow fine, no symptom of chemical damage.6 cells are handled, difference occurs in Rape Seedling
The poisoning of degree, rice shoot distortion, deformation.This is because cornfield weeding composition degradation prepared by embodiment 3 is fast, in the soil
It is not easy to remain, has higher safety to environment and crop.
Wettable powder corn field prepared by oil-suspending agent cornfield weeding composition and embodiment 2 prepared by embodiment 1
The test of pesticide effectiveness result class for the type water dispersable granules cornfield weeding composition that the drug effect of Herbicidal combinations is prepared with embodiment 3
Seemingly.
Described in comprehensive each contrast test, illustrate that the component of the present invention is reasonable, work when preventive effect is administered alone better than each component
Property, field efficacy experimental verification a combination thereof has synergistic effect, and a dispenser can control the weeds in crop entire growth period,
Slow down the generation of Weed Resistance；Amicarbazone, flufenacet decompose completely in the soil after dispenser 30d, noresidue, to environment,
Crop, people's safety, meet the security requirement of pesticidal preparations.
Claims (2)
1. a kind of cornfield weeding composition, it is characterised in that the type water dispersable granules cornfield weeding composition percentage by weight
Than flufenacet, 24% amicarbazone, the wetting agent KDS95 of 4% diffusant G180 and 2% and 54% lightweight by 16%
Calcium carbonate forms.
2. the application method of cornfield weeding composition described in claim 1, it is characterised in that this method is to use maize seedling
Cauline leaf spraying treatment afterwards.
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