CN106942243A - A kind of herbicidal composition of Han fenoxaprops - Google Patents
A kind of herbicidal composition of Han fenoxaprops Download PDFInfo
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- CN106942243A CN106942243A CN201710204851.1A CN201710204851A CN106942243A CN 106942243 A CN106942243 A CN 106942243A CN 201710204851 A CN201710204851 A CN 201710204851A CN 106942243 A CN106942243 A CN 106942243A
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- Prior art keywords
- bentazone
- fenoxaprop
- fluorine chloropyridine
- chloropyridine ester
- weeds
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Classifications
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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
- A01N43/88—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 six-membered rings with three ring hetero atoms
-
- 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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
-
- 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
- A01N43/74—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 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
Abstract
A kind of herbicidal composition of Han fenoxaprops.The invention discloses a kind of Wheat field weeding composition, it includes active ingredient fluorine chloropyridine ester, bentazone and fenoxaprop, and remaining is insecticides adjuvant.Fluorine chloropyridine ester, bentazone are He the weight ratio of fenoxaprop is：(0.5‑8):(47.5‑760):The weight percentage of active component is 5 90% in (3 48), Herbicidal combinations.According to needs are applied, Herbicidal combinations of the present invention can be prepared into the formulations such as water dispersible granules, wettable powder, missible oil, suspending agent, dispersible oil-suspending agent.The preventive effect of weeds of wheat is used alone the present invention better than fluorine chloropyridine ester, bentazone and fenoxaprop, reduces the dosage of agricultural chemicals, reduces adverse effect of the agricultural chemicals to ecological environment, effectively administered resistance weed problem.
Description
【Technical field】
The present invention relates to a kind of herbicidal composition, and in particular to a kind of herbicide for being used to prevent and treat weeds of wheat, it
It is the ternary weeding composition using fluorine chloropyridine ester, bentazone He fenoxaprop as active component.
【Background technology】
Wheat is one of China staple crops, and cultivated area and yield are only second to paddy rice, is both main food resource
It is the important raw material of industry again, critical role is occupied in national economy.With the continuous expansion of wheat planting area, wheatland is miscellaneous
Grass harm is also increasingly serious, and recently as the change of planting system and cultivation management, some new weed species and part are non-
Farmland malignant weed is quickly grown in wheat paddock, and new weed community or has been formed.Chemical herbicide it is single continuous
Use, on the one hand cause the rising of anti-Types of Medicine weed population, on the other hand also reduce the effective rate of utilization of chemical herbicide, soil
Earth and Practice for Pesticide Residue in Agricultural Products are exceeded, seriously threaten the production safety of wheat.Cornfield herbicidal herbicide controlling spectrum in the market
Narrow, activity is low, it is impossible to simultaneously effective prevent and kill off the various weeds in wheatland, thus exploitation efficiently, low toxicity, economy, safety it is new
Type herbicide is significant to cornfield herbicidal.
Fluorine chloropyridine ester (halauxifen-methyl), chemical name：The chloro- 6- of 4- amino -3- (the chloro- 3- first of the fluoro- 4- of 2-
Phenyl) -2- pyridine carboxylic acid methyl esters, structural formula is：
Fluorine chloropyridine ester is the first arylpicolinic acids ester type compound developed by Tao benefit agriculture, belongs to synthesis growth
Plain class herbicide, possesses the mechanism of action of uniqueness, it simulates the effect of high dose plant growth regulator, causes specific life
The overstimulation of long element regulatory gene, disturbs multiple growth courses of sensitive plant.Fluorine chloropyridine ester can by the stem of plant, leaf and
Root absorption, by being combined with the hormone receptor in plant, stimulates plant cell Hypersegmentation, blocks conductive tissue, finally
Plant nutrient is caused to exhaust and dead.Broad leaved weed is prevented and kill off for cereal crop field, to clearvers, Amaranthus retroflexus, chickweed, Bao Gai
The weeds such as grass, lamb's-quarters, Descurainia sophia, piemarker have a good preventive effect, but to the preventive effects of the weeds such as volume stem smartweed, Siberian cocklebur, corn gromwell, shepherd's purse not
Be it is highly desirable, it is invalid to grassy weed.
Bentazone (Bentazone), other titles：Bentazon, Lysimachia sikokiana pellet, bentazon etc., chemical name：3- isopropyls-
1H- benzos -2,1,3- thiadiazines -4 (3H) -one 2,2- dioxide, structural formula is：
Weed eradication Pinus benzothiadiazine ketone selectivity killing type herbicide after seedling, it is main logical for seedling stage cauline leaf process
Cross blade contact to work, through in blade face infiltration conduction to chloroplaset, suppressing the electron transmission in photosynthesis, after dispenser
2 hours carton dioxide assimilation processes start suppressed, blade wilting flavescence wholly off by 11 hours, finally result in death, portion
Bentazone can be metabolized by being allocated as thing, fast degradation is allowed to for inactive material, to crop safety.It can be used for wheat paddock to prevent and kill off
The broad leaved weeds such as clearvers, Siberian cocklebur, volume stem smartweed, Amaranthus retroflexus, corn gromwell, but it is slightly worse to the preventive effect of lamb's-quarters, piemarker, benbie, to standing grain
Undergraduate course weeds are invalid, and high cost is used alone in bentazone.
Fenoxaprop (Fenoxaprop-P-ethyl) other titles：Galloping horse, prestige despot, chemical name：(R)-2-[4-
(6- Lv benzoxazole -2- bases epoxide) phenoxy group] ethyl propionate, structural formula is：
Fenoxaprop belongs to aryloxyphenoxypropanoates class selective inner-adsorption conduction-type herbicide, is acetyl-coa carboxylase
Enzyme (ACCase) inhibitor.Active ingredient is suppressed by weeds cauline leaf Assimilation and conductivity to separate living tissue and the growing point of root after dispenser
The biosynthesis of aliphatic acid, effect is rapid, and weeds stop growing in 2-3 days, 5-7 days lobus cardiacus chlorosis purplings, separate living tissue browning
Color, blade is gradually withered, is the extremely strong cauline leaf process agent of selectivity.It is mainly used in the droughts such as rape, soybean, peanut, cotton, wheat
The grassy weeds such as ground the crop fields Control Wild oat, amur foxtail, hard grass, Alopecurus, barnyard grass, green bristlegrass, to broad leaved weed
It is invalid.Fenoxaprop is individually used for needing to add antidote during wheat paddock.
Above-mentioned any one herbicide not only high cost, and herbicide controlling spectrum is limited is used alone, it is difficult to reach disposable anti-
Except the effect of a variety of weeds.Therefore, any of the above single dose is generally used in mixed way by people with other herbicides respectively, for example：
Patent CN201010192907.4 and CN201110368499.8 disclose one kind Jing oxazole standing grain of Yu containing bentazone
The Herbicidal combinations of careless spirit, but said composition is invalid to wheat paddock part broad leaved weed；
Patent CN201410430512.1 discloses fluorine chloropyridine ester and prevented and kill off with some including fenoxaprop
The mixture of herbicides of grassy weed, said composition can prevent and kill off the most of weeds of wheat paddock, but to volume stem smartweed, corn gromwell,
The preventive effect of the common broad leaved weed such as Siberian cocklebur is undesirable.
In order to make up each single dose of the above and report the deficiency that complex preparation exists in actual use, the present inventor
Further investigate, had been surprisingly found that on the basis of the screening of substantial amounts of formula indoor and field control effectiveness test, will not same-action machine
The fluorine chloropyridine ester of reason He fenoxaprop is compounded in certain ratio range, can not only make up fluorine chloropyridine with bentazone
Ester, bentazone He the narrow defect of three kinds of herbicide herbicide controlling spectrums of fenoxaprop, can also solve that bentazone cost is used alone
High the problem of, and poisoning risk of the fenoxaprop to wheat can be reduced.Reached expansion herbicide controlling spectrum, improve preventive effect,
Improve the purpose of security.At present it is not yet found that on fluorine chloropyridine ester and bentazone He what fenoxaprop three compounded
Report.
【The content of the invention】
The purpose of the present invention is to seek a kind of new wheat field herbicide composition, to make up wheatland Common Herbicides not
Foot, a kind of available herbicide conscientiously is provided for wheatland.Both active high, consumption had been few for said composition, low cost advantage, again
With broad weed-killing spectrum, security is good, synergistic effect is obvious the characteristics of.
Present invention employs following technical scheme：A kind of herbicide composition for wheat field, containing tri- kinds of activity of A, B and C into
Point, wherein active components A is fluorine chloropyridine ester, and active component B is bentazone, active component C Wei fenoxaprops.
Specifically, the weight ratio of active components A, B and C is in the herbicidal composition：(0.5-8):(47.5-760):
(3-48), be preferably：(0.75-6):(70-570):(4.5-36), more preferably：(1-6):(70-380):(6-36),
Still more preferably it is：(1.5-4):(95-280):(9-24), optimum weight ratio is：2:190:12.
Present invention also offers the preparation containing above-mentioned composition, the weight percentage of active ingredient is 5- in the preparation
90%.
According to different use needs or applying environment, herbicidal composition of the present invention, which can be prepared into, agriculturally to be permitted
Perhaps any formulation, can be water dispersible granules, wettable powder, breast as the formulation of preferred herbicidal composition of the present invention
Oil, suspending agent, dispersible oil-suspending agent etc..
When being configured to water dispersible granules, the auxiliary agent that can be selected includes：Dispersant is selected from polycarboxylate, lignin sulfonic acid
One or more in salt, alkylnaphthalene sulfonate or APES sulfonate etc.；Wetting agent is selected from naphthalene sulfonate, fat
One or more in fat alcohol sulfate, dodecyl benzene sulfonate, lauryl sodium sulfate or alkylsulfonate etc.；Disintegrant
Selected from ammonium sulfate, urea, cornstarch and its derivative, low-substituted hydroxypropyl cellulose, polyvinylpyrrolidone or alginic acid
One or more in sodium etc.；Adhesive is selected from hydroxyethyl cellulose, soluble starch, polyethylene glycol, methylcellulose, paste
One or more in essence, fructose or polyvinyl alcohol etc.；Carrier is selected from white carbon, kaolin, bentonite, diatomite, lightweight carbon
One or more in sour calcium, gypsum, attapulgite, urea or sucrose etc..
When being configured to wettable powder, the auxiliary agent that can be selected includes：Dispersant is selected from lignosulfonates, polycarboxylic acids
Salt, alkylnaphthalene sulfonate, neopelex, alkyl polyoxyethylene ether sulfonate or alkylphenol-polyethenoxy base ether formaldehyde
One or more in condensation product etc.；Wetting agent is selected from lauryl sodium sulfate, Teepol, naphthalene sulfonate, fatty alcohol
One or more in sulfate etc.；Carrier in kaolin, diatomite, attapulgite, bentonite or white carbon etc. one
Plant or a variety of.
When being configured to missible oil, the auxiliary agent that can be selected includes：Emulsifying agent is selected from Nongru-700 #, agriculture breast 2201#, dehydration mountain
One or more in pears alcohol monostearate, agriculture breast 1601#, calcium dodecyl benzene sulfonate etc.；Solvent is selected from toluene, diformazan
One or more in benzene, methanol, methyl oleate, acetone etc..
When being configured to suspending agent, the auxiliary agent that can be selected includes：Dispersant be selected from polycarboxylate, lignosulfonates,
One or more in alkylnaphthalene sulfonate, TERSPERSE2425, APES etc.；Wetting agent is selected from alkyl phenol
Polyoxyethylene ether formaldehyde condensation products sulfate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyoxyethylene ether phosphorus
One or more in acid esters, alkyl sulfate, naphthalene sulfonate etc.；Thickener is selected from xanthans, carboxymethyl cellulose, polypropylene
One or more in sour sodium, bentonite, aluminium-magnesium silicate etc.；Antifreezing agent is in ethylene glycol, propane diols, glycerine, urea etc.
It is one or more；One or more of the preservative in sorbic acid, Sodium Benzoate etc.；Defoamer can be organic silicon froth breaking
Agent；Appropriate amount of deionized water.
When being configured to dispersible oil-suspending agent, the auxiliary agent that can be selected includes：Dispersant is selected from methyl naphthalene sulfonic acid salt first
One or more in aldehyde condensate, polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate etc.；Wetting agent is selected from alkyl phenol
APEO formaldehyde condensation products sulfate, APES phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulphur
One or more in hydrochlorate etc.；Emulsifying agent is selected from castor oil polyoxyethylene ether, Nongru-700 #, agriculture breast 2201#, anhydrous sorbitol
One or more in monostearate ester APEO etc.；Thickener is selected from bentonite, polyvinyl alcohol, xanthans, magnesium silicate
One or more in aluminium etc.；Defoamer can be organic silicon；Cosolvent is in dimethylbenzene, acetone, dimethyl sulfoxide (DMSO) etc.
One or more；One or more of the decentralized medium in corn oil, soybean oil, rapeseed oil, methyl oleate etc..
Salt such as polycarboxylate, lignosulfonates etc. described in above-mentioned auxiliary agent 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 work
With；(2) activity of herbicidal compositions composition of the present invention has complementary advantages, to wheat safety, while the consumption of active ingredient is reduced,
Effect on environment is minimum；(3) herbicidal composition broad weed-killing spectrum of the present invention, can disposably prevent and kill off the various weeds of wheatland；(4) this hair
Bright herbicidal composition can avoid, delay and control weeds from developing immunity to drugs, so as to delay the succession speed of weed community.
【Embodiment】
In order to make the purpose , technical scheme and advantage of the present invention be clearer, present invention specific examples below
Illustrate, but be only limitted to this absolutely not.As described below is the present invention preferably embodiment, is used only for the description present invention, it is impossible to
Be interpreted as limitation of the present invention, it should be pointed out that be any modification, equivalent made within the spirit and principles in the present invention
Replace and improve, should be included within the scope of the present invention.
Example of formulations 1：34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules
By above-mentioned each component by formula rate it is well mixed after, frequent regulation for water dispersible granules method, i.e., before mix,
Air-flow crushing, mix afterwards, the kneading that adds water, granulation, screening, obtain 34% fluorine chloropyridine ester bentazone fenoxaprop moisture
Shot agent.
Example of formulations 2：85% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules
By above-mentioned each component by formula rate it is well mixed after, frequent regulation for water dispersible granules method, i.e., before mix,
Air-flow crushing, mix afterwards, the kneading that adds water, granulation, screening, obtain 85% fluorine chloropyridine ester bentazone fenoxaprop moisture
Shot agent.
Example of formulations 3：65% fluorine chloropyridine ester bentazone fenoxaprop wettable powder
By above-mentioned each component by formula rate it is well mixed after, frequent regulation for wettable powder method, i.e., before mix,
Air-flow crushing, rear mixing, obtain 65% fluorine chloropyridine ester bentazone fenoxaprop wettable powder.
Example of formulations 4：44% fluorine chloropyridine ester bentazone fenoxaprop wettable powder
By above-mentioned each component by formula rate it is well mixed after, frequent regulation for wettable powder method, i.e., before mix,
Air-flow crushing, rear mixing, obtain 44% fluorine chloropyridine ester bentazone fenoxaprop wettable powder.
Example of formulations 5：25% fluorine chloropyridine ester bentazone fenoxaprop missible oil
Fluorine chloropyridine ester, bentazone He fenoxaprop are first dissolved complete with part acetone, then by remaining auxiliary agent according to
It is secondary to add, 100% is finally complemented to acetone, first fluorine chloropyridine ester, bentazone, fenoxaprops is dissolved with part acetone
Completely, then by remaining auxiliary agent sequentially add, finally complement to 100% with acetone, be mixed into homogeneous oil phase, obtain 25% fluorine chloropyridine
Ester bentazone fenoxaprop missible oil.
Example of formulations 6：40% fluorine chloropyridine ester bentazone fenoxaprop missible oil
Fluorine chloropyridine ester, bentazone He fenoxaprop are first dissolved complete with part methanol, then by remaining auxiliary agent according to
It is secondary to add, 100% is finally complemented to methanol, first fluorine chloropyridine ester, bentazone, fenoxaprops is dissolved with part methanol
Completely, then by remaining auxiliary agent sequentially add, finally complement to 100% with methanol, be mixed into homogeneous oil phase, obtain 40% fluorine chloropyridine
Ester bentazone fenoxaprop missible oil.
Example of formulations 7：42% fluorine chloropyridine ester bentazone fenoxaprop suspending agent
By above-mentioned each component by formula rate it is well mixed after, frequent regulation is for the method for suspending agent, i.e. high speed shear point
Dissipate, be sanded and crush, reconcile, obtain 52% fluorine chloropyridine ester bentazone fenoxaprop suspending agent.
Example of formulations 8：37% fluorine chloropyridine ester bentazone fenoxaprop suspending agent
By above-mentioned each component by formula rate it is well mixed after, frequent regulation is for the method for suspending agent, i.e. high speed shear point
Dissipate, be sanded and crush, reconcile, obtain 37% fluorine chloropyridine ester bentazone fenoxaprop suspending agent.
Example of formulations 9：The 15% dispersible oil-suspending agent of fluorine chloropyridine ester bentazone fenoxaprop
By above-mentioned each component by formula rate it is well mixed after, frequent regulation is for the method for dispersible oil-suspending agent, i.e. elder generation
It is scattered through high speed shear, then carry out that the dispersible oil suspension of 15% fluorine chloropyridine ester bentazone fenoxaprop is sanded to obtain
Agent.
Example of formulations 10：The 21% dispersible oil-suspending agent of fluorine chloropyridine ester bentazone fenoxaprop
By above-mentioned each component by formula rate it is well mixed after, frequent regulation is for the method for dispersible oil-suspending agent, i.e. elder generation
It is scattered through high speed shear, then carry out that the dispersible oil suspension of 21% fluorine chloropyridine ester bentazone fenoxaprop is sanded to obtain
Agent.
It is raw to survey embodiment 1：
Fluorine chloropyridine ester, bentazone He fenoxaprop compound synergy measure and Herbicidal experiment
In order to prevent and kill off the weeds of wheat in agricultural production, inventor has carried out fluorine chloropyridine ester, bentazone Yu Jing oxazoles
The synergistic effect research that diclofop-methyl is mutually compounded, carries out cauline leaf process using indoor pot method, tests reference《Chinese people's republicanism
State's agricultural industry criteria NY/T 1155.7-2006 farm-chemical indoor determinations test rule-herbicide》7th part：Mixture
The Colby methods that synergy is instructed in determining.
1st, reagent agent
93% fluorine chloropyridine ester active compound
97% bentazone raw pesticide
95% fenoxaprop active compound
2nd, for examination weeds
Lamb's-quarters, corn gromwell, wild oat
Potted plant cultivation is used for the culture for trying weeds, with 11 × 12cm plastic tubs, is placed in shallow-water tank, will not make
The soil adopted back in the farmland of used herbicide is air-dried, and is filled after sieving in basin, basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.Made with basin alms bowl bottom infiltrating irrigation mode after soil moistens completely, pretreatment is quantitatively spread for examination weed seed
Soil surface is sowed at, according to seed size earthing 0.5cm-1.0cm, 28-32 DEG C/18-25 DEG C of indoor temperature (d/n) is relatively wet
Degree 75% ± 15%.The bottom infiltrating irrigation mode moisturizing of basin alms bowl is used in incubation, keeps soil to be sufficiently humidified so as to.After weeds emerge
Weeds are respectively set to 10 plants.
3rd, experimental design
Experiment sets 41 processing altogether, wherein fluorine chloropyridine ester set 0.5,1,2,4,8g a.i./hm25 dosage processing, go out
Careless pine sets 47.5,95,190,380,760g a.i./hm25 dosage processing , fenoxaprops set 3,6,12,24,48g
a.i./hm25 dosage processing, the fenoxaprop three of fluorine chloropyridine ester+bentazone+is mixed to set up 0.5+47.5+3,0.5+ separately
95+6、0.5+190+12、0.5+380+24、0.5+760+48、1+47.5+6、1+95+12、1+190+24、1+380+48、1+
760+3、2+47.5+12、2+95+24、2+190+48、2+380+3、2+760+6、4+47.5+24、4+95+48、4+190+3、4+
380+6、4+760+12、8+47.5+48、8+95+3、8+190+6、8+380+12、8+760+24g a.i./hm225 dosage are matched somebody with somebody
Than processing, an auxiliary agent control is separately set, 41 processing, are repeated 4 times altogether.
4th, test method
Spray (ASS-4 type pesticide spraying systems, DG8003 shower nozzles, spraying pressure in spray tower is placed in when the weeds 2-5 leaf phase
Power 2.75MPa, 30Kg/ mus of spouting liquid), it is placed in after natural air drying in greenhouse and cultivates observation.
5th, weedy rices and analysis method
After dispenser, growth conditions, poisoning symptom and the poisoning degree of routine observation weeds are recorded 21 after symptom of chemical damage, medicine
It weighs aerial part fresh weight, calculates weeds survival rate E, and uses the type of action of medicament with using the evaluation of Colby methods, further
Inquire into the reasonability of proportioning.
The check plot weeds fresh weight ... ... ... ... ... (1) of E=treatment region weeds fresh weight × 100/
Colby method computing formula：
Herbicide A weeds survival rate when X --- consumption is P；
Herbicide B weeds survival rate when Y --- consumption is Q；
Herbicide C weeds survival rate when Z --- consumption is W；
E0--- the theoretical weeds survival rate of herbicide (A+B+C) when consumption is (P+Q+W)；
E0- E ＞ 10% are synergistic effect；E0- E ＜ -10% are antagonism；E0- E values are summation action between ± 10%.
6th, result and analysis in table 1-3
The actual measurement survival rate and theoretical survival rate of the fluorine chloropyridine ester of table 1, bentazone He fenoxaprop mixture to lamb's-quarters
Fluorine chloropyridine ester, the bentazone co-toxicity to lamb's-quarters mixed He fenoxaprop：Fluorine chloropyridine ester is prevented lamb's-quarters
Imitate, bentazone is He fenoxaprop is undesirable to the preventive effect of lamb's-quarters, with the increase of fluorine chloropyridine ester consumption, to lamb's-quarters after using with
Preventive effect improve.
The actual measurement survival rate and theoretical survival of the fluorine chloropyridine ester of table 2, bentazone He fenoxaprop mixture to corn gromwell
Rate
Fluorine chloropyridine ester, the bentazone co-toxicity to corn gromwell mixed He fenoxaprop：Bentazone is to corn gromwell
Preventive effect it is good, fluorine chloropyridine ester is He fenoxaprop is poor to the preventive effect of corn gromwell, with the increase of bentazone consumption, after using with
Preventive effect to corn gromwell is improved.
The actual measurement survival rate and theoretical survival of the fluorine chloropyridine ester of table 3, bentazone He fenoxaprop mixture to wild oat
Rate
Fluorine chloropyridine ester, the bentazone co-toxicity to wild oat mixed He fenoxaprop：Fenoxaprop pair
The preventive effect of wild oat is good, and fluorine chloropyridine ester and bentazone to no effect, with the increase of fenoxaprop consumption, are mixed to wild oat
Improved with the rear preventive effect to wild oat.
Toxicity Determination result shows that fluorine chloropyridine ester, bentazone He fenoxaprop are in weight ratio (0.5-8):
(47.5-760):Being used with the range of (3-48) has obvious synergistic effect, expands herbicide controlling spectrum, has reached while preventing and kill off wheat
The purpose of field common weed.
It is raw to survey embodiment 2：
The safety testing of fluorine chloropyridine ester, bentazone He fenoxaprop compound to wheat
In order to study fluorine chloropyridine ester, bentazone He the security that fenoxaprop is mutually compounded, inventor done with
Lower experiment, tests reference《People's Republic of China's agricultural industry criteria NY/T 1155.8-2007 farm-chemical indoor determinations examination
Test criterion-herbicide》8th part：The safety testing cauline leaf spray-on process of crop.
1st, reagent agent
93% fluorine chloropyridine ester active compound
97% bentazone raw pesticide
95% fenoxaprop active compound
2nd, for studying thing
Wheat
Greenhouse pot culture method is used for the culture for studying thing, with 11 × 12cm plastic tubs, is placed in shallow-water tank, will not make
The soil adopted back in the farmland of used herbicide is air-dried, and is filled after sieving in basin, basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.Make after soil moistens completely, wheat seed to be quantified and broadcasted sowing in soil surface, according to kind from top-watered
Sub- size earthing 0.5cm-2.0cm, 28-32 DEG C/18-25 DEG C of indoor temperature (d/n), relative humidity 75% ± 15%.Cultivated
The bottom infiltrating irrigation mode moisturizing of basin alms bowl is used in journey, keeps soil to be sufficiently humidified so as to.After wheat is emerged, wheat is set to 10 plants.
3rd, for examination weeds
Lamb's-quarters, piemarker, corn gromwell, volume stem smartweed, wild oat, amur foxtail
Greenhouse pot culture method is used for the culture for trying weeds, with 11 × 12cm plastic tubs, is placed in shallow-water tank, will not make
The soil adopted back in the farmland of used herbicide is air-dried, and is filled after sieving in basin, basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.Made with basin alms bowl bottom infiltrating irrigation mode after soil moistens completely, pretreatment is quantitatively spread for examination weed seed
Soil surface is sowed at, according to seed size earthing 0.5cm-1.0cm, 28-32 DEG C/18-25 DEG C of indoor temperature (d/n) is relatively wet
Degree 75% ± 15%.The bottom infiltrating irrigation mode moisturizing of basin alms bowl is used in incubation, keeps soil to be sufficiently humidified so as to.After weeds emerge
Weeds are respectively set to 10 plants.
4th, experimental design
Experiment sets 41 processing altogether, wherein fluorine chloropyridine ester set 2,4,8,16,32g a.i./hm25 dosage processing, go out
Careless pine sets 190,380,760,1520,3040g a.i./hm25 dosage processing , fenoxaprops set 12,24,48,96,
192g a.i./hm25 dosage processing, the fenoxaprop three of fluorine chloropyridine ester+bentazone+is mixed to set up 0.5+47.5+ separately
3、0.5+95+6、0.5+190+12、0.5+380+24、0.5+760+48、1+47.5+6、1+95+12、1+190+24、1+380+
48、1+760+3、2+47.5+12、2+95+24、2+190+48、2+380+3、2+760+6、4+47.5+24、4+95+48、4+190
+3、4+380+6、4+760+12、8+47.5+48、8+95+3、8+190+6、8+380+12、8+760+24g a.i./hm225
Dosage ratio processing, separately sets an auxiliary agent control, 41 processing, are repeated 4 times altogether.
5th, test method
Whne the heart stage of 2 leaf of wheat 1 to 4 leaf phases, weeds 2-5 spray (ASS-4 type pesticide sprayings system in spray tower is placed in during the leaf phase
System, DG8003 shower nozzles, atomisation pressure 2.75MPa, 30Kg/ mus of spouting liquid), cultivate observation after being placed in after natural air drying in greenhouse.
6th, crop is investigated
After dispenser, investigate each processing wheat whether there is symptom of chemical damage, recorded in detail 21 after symptom of chemical damage, grade, medicine if having
Each processing wheat fresh weight of its measurement, calculates fresh weight inhibition, with security of the clear and definite test medicine to wheat.
The poisoning evaluation index of table 4
| Poisoning is classified | Poisoning degree (%) | As a result describe |
| 0 | 0 | Safety, no poisoning |
| 1 | 1-10 | Without obvious poisoning |
| 2 | 11-30 | Slight poisoning |
| 3 | 31-50 | Moderate poisoning |
| 4 | ＞ 50 | Serious poisoning |
7th, weedy rices
Periodical visual inspection observes growth conditions, poisoning symptom and the poisoning degree of weeds after dispenser, records symptom of chemical damage.After medicine
The fresh weight preventive effect for each processing being calculated using growth inhibition assay in 21 days.
Growth inhibition assay computing formula：
In formula：
E-fresh weight preventive effect, unit is percentage (%)；
T0- control weeds aerial part fresh weight, unit for gram；
T1- processing weeds aerial part fresh weight, unit for gram.
8th, result and analysis：
Table 5 respectively handles the preventive effect to weeds and the poisoning classification to wheat
It can be seen from Table 5 that fluorine chloropyridine ester bentazone fenoxaprop mixture is compared with single dose, in weight
Than (0.5-8):(47.5-760):In the range of (3-48), preventive effect to weeds of wheat and the security of wheat is above
Single dose, to wheat safety.
In summary, fluorine chloropyridine ester and bentazone are He fenoxaprop has compounded significant synergy within the specific limits
Effect, to crop safety, complex preparation is not only that wheat paddock provides a kind of safe, practical herbicide, and is substantially reduced
The cost of enterprise and peasant household.
It is raw to survey embodiment 3：
Eliminating weed in wheat field field control effectiveness test I：
1st, test process
Test and set 12 processing, 4 repetitions, totally 48 processing cells, often handle 20 square metres of plot area, random district's groups
Arrangement.(1)-(9) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules be reagent agent, (10)-
(12) 10% fluorine chloropyridine ester water dispersible granules, 40% bentazone aqua, 7.5% fenoxaprop aqueous emulsion are comparison medicine
Agent.Every mu is watered 30 kilograms, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have lamb's-quarters, piemarker,
Corn gromwell, volume stem smartweed, wild oat, amur foxtail etc..
2nd, pilot project and method
(1) security：After dispenser, the situation of growing of wheat is investigated, security of the reagent agent to wheat is evaluated.
(2) herbicidal effect：Take at random per cell at 4 points, investigate 1/4 square metre at every, investigation weed control in 30 days after dispenser
Effect, records weeds species and strain number respectively, calculates weeds strain preventive effect.
(3) result of the test
Security：Investigation finds (1)-(9) chemicals treatment district Plant Height in Wheat, leaf color and blank district basic one after dispenser
Cause, and to show leaf chlorosis, plant strain growth suppressed for (10)-(12) treatment region wheat, wheat seeding height is uneven to wait symptom of chemical damage,
Show that the fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules of reagent agent (1)-(9) 34% are pacified to wheat
Entirely.
Herbicidal effect, is shown in Table 6：
The fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules of table 6 34% are prevented and kill off to weeds of wheat
Effect
Note：(1) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (0.5:760:3)
(2) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (0.75:570:4.5)
(3) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (1:380:6)
(4) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (1.5:280:9)
(5) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (2:190:12)
(6) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (3:140:18)
(7) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (4:95:24)
(8) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (6:70:36)
(9) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (8:47.5:48)
(10) 10% fluorine chloropyridine ester water dispersible granules
(11) 40% bentazone aquas
(12) 7.5% fenoxaprop aqueous emulsions
(13) blank control
As shown in Table 6,34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules pair of different ratio
Common weed strain preventive effect between 87.09%-98.12%, be superior to the fluorine chloropyridine ester water dispersible granules of comparison medicament 10%,
(weeds strain preventive effect is respectively 45.54%, 46.13% and for 40% bentazone aqua, 7.5% fenoxaprop aqueous emulsion
41.59%).Wherein fluorine chloropyridine ester, bentazone He fenoxaprop weight ratio are (0.5-8):(47.5-760):(3-48)
When have obvious preventive effect to wheat paddock common weed, weeds strain preventive effect is all more than 87%；Fluorine chloropyridine ester, bentazone He Jing oxazoles
Diclofop-methyl weight ratio is (0.75-6):(70-570):When (4.5-36) to wheat paddock common weed preventive effect preferably, weeds strain preventive effect
All more than 90%；And fluorine chloropyridine ester, bentazone He fenoxaprop weight ratio are 2:190:Preventive effect is more up to when 12
98.12%.Thus illustrate, fluorine chloropyridine ester, bentazone He fenoxaprop are in weight ratio (0.5-8):(47.5-760):
Compounded in the range of (3-48), the weeds common to wheat paddock have preventive effect, and this herbicidal composition is to wheat safety.
Eliminating weed in wheat field field control effectiveness test II：
1st, test process
(1) 17% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (2:190:12) 320g/ mus
(2) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (2:190:12) 160g/ mus
(3) 85% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (2:190:12) 64g/ mus
Test and set 3 processing, 4 repetitions, totally 12 processing cells, often handle 20 square metres of plot area, random district's groups
Arrangement.(1)-(3) fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules are reagent agent, and every mu is watered 30 public affairs
Jin, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have lamb's-quarters, piemarker, corn gromwell, volume stem smartweed,
Wild oat, amur foxtail etc..
2nd, pilot project and method
Herbicidal effect：Take at random per cell at 4 points, investigate 1/4 square metre at every, 30 days investigation weed control effects after dispenser
Really, weeds species and strain number are recorded respectively, calculate weeds strain preventive effect.
3rd, result of the test：Herbicidal effect is shown in Table 7
Preventive effect of 30 days fluorine chloropyridine ester bentazone fenoxaprops to various weeds after the medicine of table 7
Note：(1) 17% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (2:190:12)
(2) 34% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (2:190:12)
(3) 85% fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules (2:190:12)
As shown in Table 7, when the weight ratio of fluorine chloropyridine ester, bentazone He fenoxaprop is 2:190:It is different when 12
The fluorine chloropyridine ester bentazone fenoxaprop water dispersible granules of content to common weed strain preventive effect more than 97%,
Show fluorine chloropyridine ester, bentazone He fenoxaprop weight ratio be optimal proportion when, the weeding of different activities component content
Agent composition has significant preventive effect to weeds of wheat.
In summary, rationally, activity when preventive effect is administered alone better than each component is equal to weeds of wheat for instant component
There is good preventive effect, expand control of weeds spectrum, delayed the generation of herbicide resistance, to crop safety, meet agricultural chemicals
The security requirement of preparation.
Claims (7)
1. a kind of herbicidal composition, it is characterised in that said composition is made up of tri- kinds of active components of A, B and C, wherein activity into
It is fluorine chloropyridine ester to divide A, and active component B is bentazone, active component C Wei fenoxaprops, the active components A, B and C
Weight ratio be：（0.5-8）:（47.5-760）:（3-48）.
2. herbicidal composition according to claim 1, it is characterised in that the weight ratio of active components A, B and C is：
（0.75-6）:（70-570）:（4.5-36）.
3. herbicidal composition according to claim 2, it is characterised in that the weight ratio of active components A, B and C is：（1-
6）:（70-380）:（6-36）.
4. herbicidal composition according to claim 3, it is characterised in that the weight ratio of active components A, B and C is：
（1.5-4）:（95-280）:（9-24）.
5. herbicidal composition according to claim 4, it is characterised in that the weight ratio of active components A, B and C is： 2:
190:12。
6. the herbicidal composition according to any one of claim 1-5, it is characterised in that active component is in herbicide group
Weight percentage in compound is 5-90%.
7. herbicidal composition according to claim 6, it is characterised in that said composition can be times agriculturally allowed
A kind of formulation.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808520A (en) * | 2007-08-27 | 2010-08-18 | 陶氏益农公司 | Synergistic herbicidal composition containing certain pyridine or pyrimidine carboxylic acids and certain cereal and rice herbicides |
| CN102405916A (en) * | 2011-11-20 | 2012-04-11 | 广东中迅农科股份有限公司 | Herbicidal composition containing fenoxaprop-P-ethyl and bentazone |
| CN104145982A (en) * | 2014-08-28 | 2014-11-19 | 联保作物科技有限公司 | Wheat field weeding composition and medicine preparation thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808520A (en) * | 2007-08-27 | 2010-08-18 | 陶氏益农公司 | Synergistic herbicidal composition containing certain pyridine or pyrimidine carboxylic acids and certain cereal and rice herbicides |
| CN102405916A (en) * | 2011-11-20 | 2012-04-11 | 广东中迅农科股份有限公司 | Herbicidal composition containing fenoxaprop-P-ethyl and bentazone |
| CN104145982A (en) * | 2014-08-28 | 2014-11-19 | 联保作物科技有限公司 | Wheat field weeding composition and medicine preparation thereof |
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