CN106962388A - A kind of herbicidal composition of flucarbazone-sodium - Google Patents
A kind of herbicidal composition of flucarbazone-sodium Download PDFInfo
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- CN106962388A CN106962388A CN201710204830.XA CN201710204830A CN106962388A CN 106962388 A CN106962388 A CN 106962388A CN 201710204830 A CN201710204830 A CN 201710204830A CN 106962388 A CN106962388 A CN 106962388A
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- Prior art keywords
- flucarbazone
- bentazone
- fluorine chloropyridine
- chloropyridine ester
- weeds
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- 0 *C(*(C(c1ccccc11)=O)N*1=C)N* Chemical compound *C(*(C(c1ccccc11)=O)N*1=C)N* 0.000 description 1
Classifications
-
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
-
- 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
- A01N43/88—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
Abstract
The invention discloses a kind of Wheat field weeding composition, it includes active ingredient fluorine chloropyridine ester, bentazone and flucarbazone, and remaining is insecticides adjuvant.The weight ratio of fluorine chloropyridine ester, bentazone and flucarbazone is：(0.5‑8):(47.5‑760):The weight percentage of active component is 10 95% in (2.5 40), Herbicidal combinations.According to needs are applied, Herbicidal combinations of the present invention can be prepared into the formulations such as wettable powder, water dispersible granules, 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 flucarbazone, 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 invention belongs to field of pesticide chemistry, and in particular to a kind of using fluorine chloropyridine ester, bentazone and flucarbazone as work
The Wheat field weeding composition of property composition.
【Background technology】
Wheat is the important cereal crops of China, and cultivated area is big, in recent years due to the change of farmland ecosystem and miscellaneous
The drug-fast enhancing of grass, wheat weedses have become the main harm during Wheat Production.Chemical method weeding is agriculturally
The Main Means of weeds are controlled, but the herbicide that currently there are can not be while prevent and kill off all weeds in wheat paddock, gesture
Necessity ask for help repeated multiple times medication prevent and kill off all kinds of weeds, so on the one hand waste substantial amounts of manpower and materials, on the other hand
Cause environmental pollution and residues of pesticides exceeded, directly endangered to mankind's health care belt, and these medicaments are repeated due to long-term
Or not scientifical use so that wheat weedses resistance is serious, dosage increase, so as to cause cost accounting to raise.Therefore, these medicines
The need for agent can not meet wheatland management of weeds, select different types of herbicide mixture just into when former is effective
Prophylactico-therapeutic measures, the agricultural chemicals of performance complement is played optimal synergistic effect by adjusting the proportioning of different agricultural chemicals.
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
Ideal 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 cost height is used alone in bentazone.
Flucarbazone (Flucarbazone-sodium) other titles：Flucarbazonesodium, young tiger tiger, chemical name：N- (2- tri-
Fluorine methoxy phenylsulfonyl) -4,5- dihydro -3- methoxyl group -4- methyl -5- oxygen -1H-1,2,4- triazole formyl ammonia sodium salts, knot
Structure formula is：
Flucarbazone belongs to the efficient internal-suction type wheat field herbicide of sulfonylurea, and active ingredient can be by the cauline leaf of weeds and root
Absorb, by suppressing the activity of acetolactate synthestase (ALS) in weeds body, destroy the normal Physiological and Biochemical Metabolism of weeds and send out
Wave activity of weeding.The most of grassy weed of wheat paddock and part broad leaved weed can be effectively prevented and kill off, to wild oat, bromegrass, wheat is seen
The weeds such as ma have obvious preventive effect.Flucarbazone is metabolized soon in wheat body, has fabulous security to wheat.
Any one above-mentioned herbicide is used alone, and not only cost is high, and herbicide controlling spectrum is limited, 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 CN201410430512.1 discloses fluorine chloropyridine ester and can compounded with flucarbazone for wheat paddock weeding, but
It is that said composition is slightly worse to the preventive effect of wheat paddock part broad leaved weed；
Patent CN201310666986.1 discloses the Herbicidal combinations of a kind of flucarbazone-sodium and bentazone, applied to small
The preventing and treating of wheatland grass family and broad leaved weed, but said composition can not solve all weed problems of wheat paddock.
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 is compounded with bentazone and flucarbazone in certain ratio range, can both have been made up fluorine chloropyridine ester, gone out
Careless pine and the narrow defect of three kinds of herbicide herbicide controlling spectrums of flucarbazone, can solve the problem of bentazone cost is high again.Solve and remove
Careless agent is alone in limitation present on herbicide controlling spectrum, preventive effect and security, has reached expansion herbicide controlling spectrum, has improved preventive effect, improves peace
The purpose of full property.At present it is not yet found that the report compounded on fluorine chloropyridine ester and bentazone and flucarbazone three.
【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.Said composition both active high, advantage that consumption is few, cost is low, 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, and active component C is flucarbazone.
Specifically, the weight ratio of active components A, B and C is in the herbicidal composition：(0.5-8):(47.5-760):
(2.5-40), be preferably：(0.75-6):(70-570):(4-30), more preferably：(1-4):(95-380):(5-20),
Still more preferably it is：(1.5-4):(95-280):(7.5-20), optimum weight ratio is：2:190:10.
Present invention also offers the preparation containing above-mentioned composition, the weight percentage of active ingredient is in the preparation
10-95%.
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, wettable powder, water dispersible granules, suspension can be prepared into as preferred herbicidal composition of the present invention
The formulations such as agent, dispersible oil-suspending agent.
In the preparation, also contain auxiliary agent, specially dispersant, wetting agent, disintegrant, emulsifying agent, adhesive or carrier
One or more in.
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, aliphatic alcohol polyethenoxy
One or more in ether, NPE or sorbitan fatty acid ester APEO etc.；Carrier is selected from height
One or more in ridge soil, diatomite, attapulgite, bentonite or white carbon 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 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 toluene, dimethylbenzene, 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, fool proof to wheat, while reducing active ingredient
Consumption, 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) herbicidal composition of the present invention can avoid, delay and control weeds to develop immunity to drugs, so as to delay the succession of weed community
Speed.
【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 in the scope of the protection.
Example of formulations 1：50% fluorine chloropyridine ester bentazone flucarbazone 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 50% fluorine chloropyridine ester bentazone flucarbazone wettable powder.
Example of formulations 2：61% fluorine chloropyridine ester bentazone flucarbazone 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 61% fluorine chloropyridine ester bentazone flucarbazone wettable powder.
Example of formulations 3：42% fluorine chloropyridine ester bentazone flucarbazone 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 42% fluorine chloropyridine ester bentazone flucarbazone water-dispersible grain
Agent.
Example of formulations 4：87% fluorine chloropyridine ester bentazone flucarbazone 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 87% fluorine chloropyridine ester bentazone flucarbazone water-dispersible grain
Agent.
Example of formulations 5：36% fluorine chloropyridine ester bentazone flucarbazone 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 36% chlorine fluorine pyridine ester bentazone flucarbazone suspending agent.
Example of formulations 6：48% fluorine chloropyridine ester bentazone flucarbazone 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 48% chlorine fluorine pyridine ester bentazone flucarbazone suspending agent.
Example of formulations 7：The 18% dispersible oil-suspending agent of fluorine chloropyridine ester bentazone flucarbazone
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 be sanded, obtain the 18% dispersible oil-suspending agent of fluorine chloropyridine ester bentazone flucarbazone.
Example of formulations 8：The 24% dispersible oil-suspending agent of fluorine chloropyridine ester bentazone flucarbazone
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 be sanded, obtain the 24% dispersible oil-suspending agent of fluorine chloropyridine ester bentazone flucarbazone.
It is raw to survey embodiment 1：
Fluorine chloropyridine ester, bentazone and flucarbazone compounding 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 and fluorine azoles sulphur
The grand synergistic effect research mutually compounded, carries out cauline leaf process using indoor pot method, tests reference《People's Republic of China's agriculture
Industry professional standard NY/T 1155.7-2006 farm-chemical indoor determinations test rule-herbicide》7th part：The joint of mixture
The Colby methods that effect is instructed in determining.
1st, reagent agent
93% fluorine chloropyridine ester active compound
97% bentazone raw pesticide
95% flucarbazone active compound
2nd, for examination weeds
Lamb's-quarters, corn gromwell, bromegrass
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%.Basin bottom part infiltrating irrigation mode moisturizing is used in incubation, keeps soil to be sufficiently humidified so as to.Will 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./hm2The processing of 5 dosage, flucarbazone sets 2.5,5,10,20,40g
a.i./hm25 dosage processing, fluorine chloropyridine ester+bentazone+flucarbazone three is mixed to set up 0.5+47.5+2.5,0.5+95 separately
+5、0.5+190+10、0.5+380+20、0.5+760+40、1+47.5+5、1+95+10、1+190+20、1+380+40、1+760+
2.5、2+47.5+10、2+95+20、2+190+40、2+380+2.5、2+760+5、4+47.5+20、4+95+40、4+190+2.5、
4+380+5、4+760+10、8+47.5+40、8+95+2.5、8+190+5、8+380+10、8+760+20g a.i./hm225 agent
Proportioning processing is measured, 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 calculation 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 and flucarbazone mixture to lamb's-quarters
Fluorine chloropyridine ester, the bentazone co-toxicity to lamb's-quarters mixed with flucarbazone：Fluorine chloropyridine ester is good to the preventive effect of lamb's-quarters,
Bentazone and flucarbazone are slightly worse to the preventive effect of lamb's-quarters, and with the increase of fluorine chloropyridine ester consumption, the preventive effect of lamb's-quarters is improved after using with.
The actual measurement survival rate and theoretical survival rate of the fluorine chloropyridine ester of table 2, bentazone and flucarbazone mixture to corn gromwell
Fluorine chloropyridine ester, the bentazone co-toxicity to corn gromwell mixed with flucarbazone：Bentazone is prevented corn gromwell
Imitate, fluorine chloropyridine ester and flucarbazone are poor to the preventive effect of corn gromwell, with the increase of bentazone consumption, to corn gromwell after using with
Preventive effect improve.
The actual measurement survival rate and theoretical survival rate of the fluorine chloropyridine ester of table 3, bentazone and flucarbazone mixture to bromegrass
Fluorine chloropyridine ester, the bentazone co-toxicity to bromegrass mixed with flucarbazone：Preventive effect of the flucarbazone to bromegrass
It is good, fluorine chloropyridine ester and bentazone to bromegrass to no effect, with the increase of flucarbazone consumption, it is mixed after the preventive effect of bromegrass is carried
It is high.
Toxicity Determination result shows that fluorine chloropyridine ester, bentazone and flucarbazone are in weight ratio (0.5-8):
(47.5-760):Being used with the range of (2.5-40) has obvious synergistic effect, expands herbicide controlling spectrum, has reached while preventing and kill off small
The purpose of wheatland main weeds.
It is raw to survey embodiment 2：
The safety testing of fluorine chloropyridine ester, bentazone and flucarbazone compounding to wheat
For the security for studying fluorine chloropyridine ester, bentazone and flucarbazone are mutually compounded, inventor has done following examination
Test, test reference《People's Republic of China's agricultural industry criteria NY/T 1155.8-2007 farm-chemical indoor determinations experiment is accurate
Then-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% flucarbazone 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, bromegrass, 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./hm2The processing of 5 dosage, flucarbazone sets 9,18,36,72,144g
a.i./hm25 dosage processing, fluorine chloropyridine ester+bentazone+flucarbazone three is mixed to set up 0.5+47.5+2.5,0.5+95 separately
+5、0.5+190+10、0.5+380+20、0.5+760+40、1+47.5+5、1+95+10、1+190+20、1+380+40、1+760+
2.5、2+47.5+10、2+95+20、2+190+40、2+380+2.5、2+760+5、4+47.5+20、4+95+40、4+190+2.5、
4+380+5、4+760+10、8+47.5+40、8+95+2.5、8+190+5、8+380+10、8+760+20g a.i./hm225 agent
Proportioning processing is measured, an auxiliary agent control is separately set, 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 put during the leaf phase
System, DG8003 shower nozzles, atomisation pressure 2.75MPa, 30Kg/ mu of spouting liquid), culture greenhouse in is placed in after natural air drying and is observed.
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 calculation 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 flucarbazone mixture is compared with single dose, in weight ratio
(0.5-8):(47.5-760):In the range of (2.5-40), preventive effect to wheat paddock common weed and equal to the security of wheat
Higher than single dose, to wheat safety.
In summary, fluorine chloropyridine ester has compounded significant synergy with bentazone and flucarbazone and made within the specific limits
With to crop safety, complex preparation is not only that wheat paddock provides a kind of safe, practical herbicide, and is greatly reduced
Enterprise and the cost of 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) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powder is reagent agent, (10)-(12)
10% fluorine chloropyridine ester water dispersible granules, 40% bentazone aqua, 70% flucarbazone water dispersible granules are comparison medicament.Every mu
30 kilograms are watered, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have lamb's-quarters, piemarker, corn gromwell,
Volume stem smartweed, bromegrass, 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：Investigated after dispenser, (1)-(9) chemicals treatment district Plant Height in Wheat, leaf color and blank district are basically identical,
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, table
The bright fluorine chloropyridine ester bentazone flucarbazone wettable powder of reagent agent (1)-(9) 50% is to wheat safety.
Herbicidal effect, is shown in Table 6：
Preventive effect of the fluorine chloropyridine ester bentazone flucarbazone wettable powder of table 6 50% to weeds of wheat
Note：(1) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powder (0.5:760:2.5)
(2) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (0.75:570:4)
(3) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (1:380:5)
(4) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (1.5:280:7.5)
(5) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (2:190:10)
(6) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (3:140:15)
(7) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (4:95:20)
(8) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (6:70:30)
(9) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (8:47.5:40)
(10) 10% fluorine chloropyridine ester water dispersible granules
(11) 40% bentazone aquas
(12) 70% flucarbazone water dispersible granules
(13) blank control
As shown in Table 6,50% fluorine chloropyridine ester bentazone flucarbazone wettable powder of different ratio is to common
Weeds strain preventive effect is superior to the fluorine chloropyridine ester water dispersible granules of comparison medicament 10%, 40% gone out between 86.56%-97.73%
Careless pine aqua and 70% flucarbazone water dispersible granules (weeds strain preventive effect is respectively 44.79%, 45.84% and 47.25%).Its
Middle fluorine chloropyridine ester, bentazone and flucarbazone weight ratio are (0.5-8):(47.5-760):It is normal to wheat paddock when (2.5-40)
See that weeds have obvious preventive effect, weeds strain preventive effect is all more than 86%；Fluorine chloropyridine ester, bentazone and flucarbazone weight ratio are
(0.75-6):(70-570):When (4-30) to wheat paddock common weed preventive effect preferably, weeds strain preventive effect is all more than 90%；And
Fluorine chloropyridine ester, bentazone and flucarbazone weight ratio are 2:190:Preventive effect is more up to 97.73% when 10.Thus illustrate, fluorine
Chloropyridine ester, bentazone and flucarbazone are in weight ratio (0.5-8):(47.5-760):Compounded in the range of (2.5-40), to wheat
Field common weed has preventive effect, and this herbicidal composition is to wheat safety.
Eliminating weed in wheat field field control effectiveness test II：
1st, test process
(1) 18% fluorine chloropyridine ester bentazone flucarbazone wettable powder (2:190:10) 300g/ mus
(2) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (2:190:10) 108g/ mus
(3) 90% fluorine chloropyridine ester bentazone flucarbazone wettable powders (2:190:10) 60g/ 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 flucarbazone wettable powder is reagent agent, and 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, sparrow
Wheat, 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 flucarbazones to various weeds after the medicine of table 7
Note：(1) 18% fluorine chloropyridine ester bentazone flucarbazone wettable powder (2:190:10)
(2) 50% fluorine chloropyridine ester bentazone flucarbazone wettable powders (2:190:10)
(3) 90% fluorine chloropyridine ester bentazone flucarbazone wettable powders (2:190:10)
As shown in Table 7, when the weight ratio of fluorine chloropyridine ester, bentazone and flucarbazone is 2:190:When 10, different content
Fluorine chloropyridine ester bentazone flucarbazone wettable powder to common weed strain preventive effect more than 98%, show fluorine chlorine
When pyridine ester, bentazone and flucarbazone weight ratio are optimal proportion, the herbicidal composition of different activities component content is to small
Wheat weedses have significant preventive effect.
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, and active component C is flucarbazone, the weight of the active components A, B and C
Measuring ratio is：（0.5-8）:（47.5-760）:（2.5-40）.
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）:（4-30）.
3. herbicidal composition according to claim 2, it is characterised in that the weight ratio of active components A, B and C is：（1-
4）:（95-380）:（5-20）.
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）:（7.5-20）.
5. herbicidal composition according to claim 4, it is characterised in that the weight ratio of active components A, B and C is： 2:
190:10。
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 10-95%.
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 |
|---|---|---|---|---|
| CN1551876A (en) * | 2001-07-30 | 2004-12-01 | �ݶ�ũ������˾ | 6-aryl-4-aminopicolinates and their use as herbicides |
| 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 |
| CN103766373A (en) * | 2013-12-09 | 2014-05-07 | 广东中迅农科股份有限公司 | Weeding composition containing flucarbazone and bentazone |
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2017
- 2017-03-31 CN CN201710204830.XA patent/CN106962388A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1551876A (en) * | 2001-07-30 | 2004-12-01 | �ݶ�ũ������˾ | 6-aryl-4-aminopicolinates and their use as herbicides |
| 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 |
| CN103766373A (en) * | 2013-12-09 | 2014-05-07 | 广东中迅农科股份有限公司 | Weeding composition containing flucarbazone and bentazone |
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