CN106857563A - A kind of Herbicidal composition for rice field of containing chlorine fluorine pyridine ester - Google Patents
A kind of Herbicidal composition for rice field of containing chlorine fluorine pyridine ester Download PDFInfo
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- CN106857563A CN106857563A CN201611267714.4A CN201611267714A CN106857563A CN 106857563 A CN106857563 A CN 106857563A CN 201611267714 A CN201611267714 A CN 201611267714A CN 106857563 A CN106857563 A CN 106857563A
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- bentazone
- fluorine pyridine
- fenoxaprop
- chlorine fluorine
- pyridine ester
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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
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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
- A01N43/34—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
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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
- A01N43/74—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
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- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
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- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
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- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to technical field of pesticide, disclose a kind of Herbicidal combinations of containing chlorine fluorine pyridine ester, with chlorine fluorine pyridine ester, bentazone He fenoxaprop is as active ingredient, the chlorine fluorine pyridine ester, bentazone are He the weight ratio of fenoxaprop is the Herbicidal combinations：(0.5‑8):(20‑320):(0.75‑12).The invention also discloses application of the Herbicidal combinations in rice terrace, Herbicidal combinations of the present invention expand herbicidal spectrum by the mixed of herbicide, improve herbicidal effect, have the advantages that instant effect, lasting period are long, delay herbicide resistance, herbicide thoroughly, low toxicity, low-residual, safety and environmental protection, have good prevention effect to rice terrace grass family, broad-leaved and sedge weed.
Description
【Technical field】
The present invention relates to composition pesticide, and in particular to a kind of containing chlorine fluorine pyridine ester, bentazone He fenoxaprop
Composition pesticide and its application.
【Background technology】
Paddy rice is not only the topmost cereal crops of China, is also one of world's staple food crop.Paddy rice is in growth period
Often endangered by various weeds, these weeds have very strong vitality, with rice seedling contention nutrition, moisture, sunlight, life
Long spacing etc., has a strong impact on growing for rice seedling, causes rice yield to decline or have no harvest.With agricultural cience and farming techniques
Development, the popularization and application of chemical herbicide have turned into one of saving of labor, time saving, cost-saving strong well stimulation.But due to length
Phase uses the change of a certain class herbicide and rice terrace cropping system, the introducing of new varieties in rice terrace so that weed community
There is obvious change, paddy field weed is propagated rapidly and constantly spread, and some herbicides have been observed that and generate resistance；Simultaneously
Grass when occurring due to weeds is mutually complicated, and grass family, broad-leaved and sedge weed have concurrently, and weeds seedling-growing time is irregular not
Together, so when herbicide kind is used alone, can show defect and limitation in a certain respect.Therefore, develop new anti-
Except the herbicide of paddy field weed is the Main Means of current paddy field weeding, the key of paddy rice good harvest high yield is also to ensure that.
Chlorine fluorine pyridine ester (Florpyrauxifen-benzyl), other titles：Ling Sike, Rinskor, chemical name：4-
The chloro- 6- of amino -3- (the chloro- 3- methoxyphenyls of the fluoro- 4- of 2-) -5- fluorine pyridine-2-carboxylic acids benzene methyls, structural formula is：
Chlorine fluorine pyridine ester is Tao benefit agriculture after the 2nd aromatic radical pyridine carboxylic acid esters weeding developed after fluorine chloropyridine ester
Agent, belongs to growth regulator class herbicide, compared with other growth regulator class herbicides, the herbicide consumption, herbicide controlling spectrum,
The characteristics of aspects such as weeds poisoning symptom, Environmental Toxicological, the mechanism of action suffer from novelty, its mechanism of action and fluorine chloropyridine ester phase
Together, the resistance problem of known various herbicides can be solved.Chlorine fluorine pyridine ester has absorbability, can be inhaled by blade and root
Receive, conducted through xylem and bast and be accumulated in the separate living tissue of weeds, so as to play activity of weeding.It is mainly used in rice terrace
Weeding, it is effective to rice terrace part grass family, broad-leaved and sedge weed.But, chlorine fluorine pyridine ester is used alone and still cannot
Prevent and kill off all weeds of rice field.
Bentazone (Bentazone), other titles：Bentazon, Lysimachia sikokiana pellet, bentazon etc., chemical name：3- isopropyls-
1H- benzo -2,1,3- thiadiazine -4 (3H) -one 2,2- dioxide, structural formula is：
Weed eradication Pinus benzothiadiazine ketone selectivity killing type herbicide after seedling, is inhibitor of photosynthesis, for seedling
Phase cauline leaf process, are mainly worked by blade contact, are conducted to chloroplaset through blade face infiltration, in suppression photosynthesis
Electron transmission, 2 hours carton dioxide assimilation processes start suppressed after dispenser, and wholly off by 11 hours, blade is wilted and become
Huang, finally results in death, and part crop can be metabolized bentazone, and it is inactive material to be allowed to fast degradation, to crop safety.
Can be used for rice terrace and prevent and kill off the broad-leaveds such as Monochoria vaginalis, mexicana, firefly Lin, needle spikesedge herb, flat stalk Fischer grass and sedge weed, but it is right
The effect of the weeds such as lamb's-quarters, triquetrousc murdannia herb, miliary fimbristylis herb is slightly worse, invalid to grass family, and bentazone be used alone when cost very
It is high.
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, and separate living tissue becomes
Brown, blade is gradually withered, is the extremely strong cauline leaf process agent of selectivity.It is mainly used in rape, soybean, peanut, cotton, wheat etc.
Prevent and kill off grassy weed in dry crop field.There is enterprise that fenoxaprop and other mixture of herbicides are developed registration in recent years
Used in rice terrace.Show , fenoxaprops and its complex preparation in rice terrace application, if used by production practices
It is improper to be just easy to produce poisoning.
Above-mentioned any one herbicide not only high cost is used alone, and herbicide controlling spectrum is limited, it is difficult to reach disposable anti-
Except the effect of various weeds.Therefore, generally respectively be used in mixed way any of the above single dose with other herbicides by people, for example：
Patent CN201010192907.4, CN201110368499.8 discloses a kind of bentazone that contains He Jing oxazole dogstail
The Herbicidal combinations of spirit, said composition can prevent and kill off most weeds, but all weeds in can not solving rice terrace are asked
Topic；
Patent CN201380049403.9 discloses chlorine fluorine pyridine ester can be with bentazone-sodium compounding, but said composition
Preventive effect to part grassy weed is bad；
Patent CN201380049466.4 discloses the composition of chlorine fluorine pyridine ester Yu fenoxaprop compounds, but should
Composition is undesirable to the preventive effect of part broad-leaved and sedge weed.
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 chlorine fluorine pyridine ester of reason He fenoxaprop is compounded in certain ratio range, can not only make up chlorine fluorine pyridine 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
Problem high, and poisoning risk of the fenoxaprop to paddy rice can be reduced.Expansion herbicide controlling spectrum is reached, preventive effect has been improved, is carried
The purpose of high security.At present it is not yet found that on fluorine chloropyridine ester and bentazone He the report of fenoxaprop three compounding
Road.
【The content of the invention】
It is an object of the invention to the present situation according to current herbicide for paddy field, and paddy field weed a situation arises,
There is provided a kind of broad weed-killing spectrum, herbicidal effect it is good, using safety, be conducive to the herbicidal composition of the paddy field weed comprehensive regulation.
Present invention employs following technical scheme：A kind of herbicide composition for paddy fields, containing tri- kinds of activity of A, B and C into
Point, wherein active components A is chlorine fluorine pyridine 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):(20-320):
(0.75-12), preferably：(0.5-4):(20-160):(0.75-6), more preferably：(0.75-4):(20-140):(1-
6), still more preferably for：(1-3.5):(30-120):(1.5-5.5), optimum weight ratio is：2:80:3.
Present invention also offers the preparation containing above-mentioned composition, the weight percentage of active ingredient is in the preparation
10-90%.
The preparation is any one formulation for agriculturally allowing, preferably wettable powder, water dispersible granules, missible oil, can
The various formulations of the suitable agricultural uses such as dispersion oil-suspending agent, suspending agent, more preferably wettable powder.
In the preparation, also contain auxiliary agent, specially dispersant, wetting agent, disintegrant, emulsifying agent, adhesive or carrier
One or more in.
When wettable powder is configured to, can used additives include：
Dispersant is selected from lignosulfonates, polycarboxylate, alkylnaphthalene sulfonate, neopelex, alkyl and gathers
One or more in oxygen ethene ether sulfonate or alkylphenol-polyethenoxy base ether formaldehyde condensation products etc.；
Wetting agent is selected from lauryl sodium sulfate, Teepol, AEO, Nonyl pheno
One or more in ether or sorbitan fatty acid ester APEO etc.；
Carrier is selected from one or more in kaolin, diatomite, attapulgite, bentonite or white carbon etc..
When water dispersible granules are configured to, can used additives include：
It is embedding that dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, APES, EO/PO
One or more in section polyethers or APES sulfonate etc.；
Wetting agent is selected from alkyl sulfate, naphthalene sulfonate, aliphatic alcohol sulfate, dodecyl benzene sulfonate, dodecyl
One or more in sodium sulphate, AEO or alkylsulfonate etc.；
Disintegrant is selected from ammonium sulfate, sodium sulphate, sodium chloride, ammonium chloride, urea, cornstarch and its derivative, low substitution
One or more in hydroxypropyl cellulose, polyvinylpyrrolidone or sodium alginate etc.；
Adhesive is selected from hydroxyethyl cellulose, soluble starch, polyethylene glycol, methylcellulose, dextrin, fructose or poly- second
One or more in enol etc.；
Carrier is selected from white carbon, kaolin, bentonite, diatomite, precipitated calcium carbonate, gypsum, attapulgite, urea or sugarcane
One or more in sugar etc..
When missible oil is configured to, can used additives include：
Wetting agent is selected from calcium dodecyl benzene sulfonate, alkyl sulfate, alkylsulfonate, alkylphenol-formaldehyde resin polyoxy second
One or more in alkene ether etc.；
Emulsifying agent is selected from Nongru-700 #, agriculture breast 2201#, triphenoethyl benzene phenol polyethenoxy ether, anhydrous sorbitol stearic acid
One or more in ester, agriculture breast 1601#, TERSPERSE2500 etc.；
Solvent is selected from one or more in toluene, dimethylbenzene, methyl alcohol, methyl oleate, acetone etc..
When being configured to dispersible oil-suspending agent, can used additives include：
Dispersant is selected from methyl naphthalene sulfonic acid salt formaldehyde condensation products, polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate etc.
In one or more；
Wetting agent is selected from APES formaldehyde condensation products sulfat, APES phosphate, alkane
One or more in base sulfate, alkylsulfonate, naphthalene sulfonate etc.；
Emulsifying agent is selected from castor oil polyoxyethylene ether, Nongru-700 #, agriculture breast 2201, anhydrous sorbitol single-hard ester acid ester polyoxy
One or more in vinethene etc.；
Thickener is selected from one or more in bentonite, polyvinyl alcohol, xanthans, aluminium-magnesium silicate etc.；
Defoamer can be organic silicon；
Cosolvent is selected from one or more in methyl alcohol, ethanol, dimethyl sulfoxide (DMSO) etc.；
Decentralized medium is selected from one or more in corn oil, soybean oil, rapeseed oil, methyl oleate etc..
When suspending agent is configured to, can used additives include：
Dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, TERSPERSE2425, alkyl phenol polyoxy
One or more in vinethene；
Wetting agent is selected from alkylphenol-polyethenoxy base ether formaldehyde condensation products sulfate, alkylphenol-polyethenoxy base ether phosphoric acid
One or more in ester, phenethyl phenol polyoxyethylene groups ether phosphate, alkyl sulfate, naphthalene sulfonate；
Thickener is selected from the one kind or many in xanthans, carboxymethylcellulose calcium, Sodium Polyacrylate, bentonite, aluminium-magnesium silicate
Kind；
Antifreezing agent is selected from one or more in ethylene glycol, propane diols, glycerine, urea；
Preservative is selected from one or more in formaldehyde, sorbic acid, Sodium Benzoate；
Defoamer can be organic silicon defoamer；
Appropriate amount of deionized water.
Salt such as polycarboxylate, lignosulfonates etc. described in above-mentioned auxiliary agent are sodium salt or calcium salt.
The invention provides a kind of safe efficient, broad weed-killing spectrum Herbicidal composition for rice field.Therefore, it is of the present invention
Activity of Herbicidal combinations preventive effect when being used alone better than each component, synergistic effect significantly, expands control of weeds spectrum, reduces
Spraying times and consumption, reduce cost accounting, slow down the generation of Weed Resistance, to paddy rice and succession crop safety.This
Invention Herbicidal combinations are respectively provided with excellent preventive effect, application prospect to rice terrace grass family, broad-leaved and sedge weed
Extensively.
【Specific 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 preferably embodiment of the invention, 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% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder
Weigh 0.8% chlorine fluorine pyridine ester, 32% bentazone, 1.2% fenoxaprop, 10% sodium lignin sulfonate, 4%
Lauryl sodium sulfate, diatomite complement to 100%, and after being well mixed, premenstrual mixing, air-flow crushing, rear mixing obtain 34% chlorine
Fluorine pyridine ester bentazone fenoxaprop wettable powder.
Example of formulations 2：66.5% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder
Weigh 2.5% chlorine fluorine pyridine ester, 60% bentazone, 4% fenoxaprop, 8% sodium lignin sulfonate, 5% secondary
, to 100%, after being well mixed, premenstrual mixing, air-flow crushing, rear mixing obtain 66.5% chlorine fluorine for sodium alkyl sulfate, white carbon supply
Pyridine ester bentazone fenoxaprop wettable powder.
Example of formulations 3：78% chlorine fluorine pyridine ester bentazone fenoxaprop water dispersible granules
Weigh 3% chlorine fluorine pyridine ester, 70% bentazone, 5% fenoxaprop, 7% polycarboxylic acids sodium, 3% sodium naphthalene sulfonate,
1.5% urea, 0.2% hydroxyethyl cellulose, kaolin complement to 100%, be well mixed after, premenstrual mixing, air-flow crushing, after
Mix, the kneading that adds water, granulation, screening, obtain 78% chlorine fluorine pyridine ester bentazone fenoxaprop water dispersible granules.
Example of formulations 4：25% chlorine fluorine pyridine ester bentazone fenoxaprop water dispersible granules
Weigh 1% chlorine fluorine pyridine ester, 20% bentazone, 4% fenoxaprop, 9% sodium lignin sulfonate, 4% 12
Sodium alkyl sulfate, 2% sodium alginate, 0.5% soluble starch, precipitated calcium carbonate complement to 100%, premenstrual after being well mixed
Mixing, air-flow crushing, mix afterwards, the kneading that adds water, granulation, screening, obtain 25% chlorine fluorine pyridine ester bentazone Jing oxazole dogstail
Lingshui Spring dispersible granule.
Example of formulations 5：37% chlorine fluorine pyridine ester bentazone fenoxaprop missible oil
Weigh 6% chlorine fluorine pyridine ester, 21% bentazone, 10% fenoxaprop, 4% calcium dodecyl benzene sulfonate, 3%
Triphenoethyl benzene phenol polyethenoxy ether, dimethylbenzene complement to 100%, first with part dimethylbenzene by fluorine chloropyridine ester, bentazone and
Fenoxaprop dissolving is complete, then remaining auxiliary agent is sequentially added, and finally complements to 100% with dimethylbenzene, is mixed into uniform
Oil phase obtains final product the 37% chlorine fluorine pyridine ester bentazone fenoxaprop missible oil.
Example of formulations 6：17% chlorine fluorine pyridine ester bentazone fenoxaprop missible oil
Weigh 2% chlorine fluorine pyridine ester, 11% bentazone, 4% fenoxaprop, 5% calcium dodecyl benzene sulfonate, 5%
Agriculture breast 1601#, acetone complement to 100%, first with part acetone by fluorine chloropyridine ester, bentazone He fenoxaprop has dissolved
Entirely, then by remaining auxiliary agent sequentially add, finally complement to 100% with acetone, be mixed into homogeneous oil phase and obtain final product the 17% chlorine fluorine
Pyridine ester bentazone fenoxaprop missible oil.
Example of formulations 7：15% chlorine fluorine pyridine ester bentazone fenoxaprop dispersibles oil-suspending agent
Weigh 2% chlorine fluorine pyridine ester, 10% bentazone, 3% fenoxaprop, 5% sodium lignin sulfonate, 3% alkyl
Sodium sulphate, 3% castor oil polyoxyethylene ether, 0.5% polyvinyl alcohol, 0.1% organic silicon defoamer, 3% methyl alcohol, methyl oleate
100% is complemented to, after being well mixed, first high speed shear dispersion, then be sanded, obtain final product the 15% chlorine fluorine pyridine ester weed eradication
Song fenoxaprops dispersible oil-suspending agent.
Example of formulations 8：28% chlorine fluorine pyridine ester bentazone fenoxaprop dispersibles oil-suspending agent
Weigh 5% chlorine fluorine pyridine ester, 16% bentazone, 7% fenoxaprop, 7% Negel, 2% naphthalene sulphur
Sour sodium, 3% sorbitan monostearate APEO, 0.3% polyvinyl alcohol, 0.1% organic silicon defoamer, soybean
Oil complements to 100%, after being well mixed, first high speed shear dispersion, then be sanded, obtain final product the 28% chlorine fluorine pyridine ester and go out
Careless Song fenoxaprops dispersible oil-suspending agent.
Example of formulations 9：52% chlorine fluorine pyridine ester bentazone fenoxaprop suspending agent
Weigh 7% chlorine fluorine pyridine ester, 35% bentazone, 10% fenoxaprop, 3%TERSPERSE2425,4% benzene
Ethyl phenol polyoxyethylene groups ether phosphate, 0.15% xanthans, 3% glycerine, 0.1% Sodium Benzoate, 0.2% organic silicon froth breaking
Agent, deionized water complement to 100%, frequent regulation for suspending agent method, i.e., high speed shear dispersion, be sanded and crush, reconcile, obtain
52% fluorine chloropyridine ester bentazone fenoxaprop suspending agent.
Example of formulations 10：19% chlorine fluorine pyridine ester bentazone fenoxaprop suspending agent
Weigh 3% chlorine fluorine pyridine ester, 11% bentazone, 5% fenoxaprop, 5% sodium lignin sulfonate, 3% alkyl
Phenol polyethenoxy base ether phosphate, 2% bentonite, 2% urea, 1% sorbic acid, 0.1% organic silicon defoamer, deionized water
Complement to 100%, frequent regulation for suspending agent method, i.e., high speed shear dispersion, be sanded and crush, reconcile, obtain 19% fluorine chlorine pyrrole
Pyridine ester bentazone fenoxaprop suspending agent.
It is raw to survey embodiment 1：
Chlorine fluorine pyridine ester, bentazone He fenoxaprop compound synergy measure and Herbicidal are tested
In order to prevent and kill off the paddy field weed in agricultural production, inventor has carried out chlorine fluorine pyridine ester, bentazone Yu Jing oxazoles
The synergistic effect research that diclofop-methyl is mutually compounded, cauline leaf process are carried out using indoor pot method, test reference《Chinese people's republicanism
State 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
91.4% chlorine fluorine pyridine ester active compound
97% bentazone raw pesticide
95% fenoxaprop active compound
2nd, for examination weeds
Triquetrousc murdannia herb, lady's-grass, Monochoria vaginalis
Culture for trying weeds uses potted plant cultivation, 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 basin is filled after sieving, and in basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.After soil is moistened completely with basin alms bowl bottom infiltrating irrigation mode, will pre-process and 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), relatively
Humidity 75% ± 15%.Using the top irrigation method moisturizing of basin alms bowl in incubation, soil is kept to be sufficiently humidified so as to.Treat that weeds emerge
Weeds are respectively set to 5 plants afterwards.
3rd, experimental design
Experiment sets 41 treatment altogether, wherein chlorine fluorine pyridine ester set 0.5,1,2,4,8g a.i./dosage of mu 5 process, weed eradication
Pine sets 20,40,80,160, the 320g a.i./dosage of mu 5 treatment , fenoxaprops set 0.75,1.5,3,6,12g a.i./
5 dosage treatment of mu, the fenoxaprop three of chlorine fluorine pyridine ester+bentazone+is mixed to set up 0.5+20+0.75,0.5+40+ separately
1.5、0.5+80+3、0.5+160+6、0.5+320+12、1+20+1.5、1+40+3、1+80+6、1+160+12、1+320+0.75、
2+20+3、2+40+6、2+80+12、2+160+0.75、2+320+1.5、4+20+6、4+40+12、4+80+0.75、4+160+
1.5th, at 25 dosage ratios of 4+320+3,8+20+12,8+40+0.75,8+80+1.5,8+160+3,8+320+6g a.i./mu
Reason, separately sets an auxiliary agent control, and 41 treatment, are repeated 4 times altogether.
4th, test method
Spray (ASS-4 type pesticide spraying systems, DG8003 shower nozzles, atomisation pressure in spray tower is placed in weeds 3-5 leaves
2.75MPa, spouting liquid 30Kg/ mus), observation is cultivated in greenhouse after being placed in after natural air drying.
5th, weedy rices and analysis method
After dispenser, the growth conditions of routine observation weeds, poisoning symptom and poisoning degree record symptom of chemical damage, 21 after 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.
E=treatment region weeds fresh weight × 100/ check plot weeds fresh weight ... ... ... ... ... (1)
Colby method computing formula：
The weeds survival rate of herbicide A when X --- consumption is P；
The weeds survival rate of herbicide B when Y --- consumption is Q；
The weeds survival rate of herbicide C 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 of the chlorine fluorine pyridine ester of table 1, bentazone He fenoxaprop mixture to triquetrousc murdannia herb
Rate
Chlorine fluorine pyridine ester, the bentazone co-toxicity to triquetrousc murdannia herb mixed He fenoxaprop：Chlorine fluorine pyridine ester is to water
The preventive effect of the leaf of bamboo is good, bentazone He fenoxaprop is undesirable to the preventive effect of triquetrousc murdannia herb, with the increasing of chlorine fluorine pyridine ester consumption
Plus, the preventive effect after using with to triquetrousc murdannia herb is improved.
The actual measurement survival rate and theoretical survival rate of the chlorine fluorine pyridine ester of table 2, bentazone He fenoxaprop mixture to lady's-grass
Chlorine fluorine pyridine ester, the bentazone co-toxicity to lady's-grass mixed He fenoxaprop：Fenoxaprop is to horse
The preventive effect of Tang is good, and chlorine fluorine pyridine ester and bentazone are poor to the preventive effect of lady's-grass, with the increase of fenoxaprop consumption, after using with
Preventive effect to lady's-grass is improved.
The actual measurement survival rate and theoretical survival of the chlorine fluorine pyridine ester of table 3, bentazone He fenoxaprop mixture to Monochoria vaginalis
Rate
Chlorine fluorine pyridine ester, the bentazone co-toxicity to Monochoria vaginalis mixed He fenoxaprop：Bentazone is to Monochoria vaginalis
Preventive effect it is good, chlorine fluorine pyridine ester He fenoxaprop is poor to the effect of Monochoria vaginalis, with the increase of bentazone consumption, after using with
Preventive effect to Monochoria vaginalis is improved.
Toxicity Determination result shows that chlorine fluorine pyridine ester, bentazone He fenoxaprop are in weight ratio (0.5-8):
(20-320):Used with the range of (0.75-12) and weeds are shown as to be added or synergistic effect, in weight ratio (0.5-4):(20-
160):Being used with the range of (0.75-6) has obvious synergistic effect, expands herbicide controlling spectrum, has reached while preventing and kill off the paddy rice owner of farmland
Want the purpose of weeds.
It is raw to survey embodiment 2：
The safety testing of chlorine fluorine pyridine ester, bentazone He fenoxaprop compound to paddy rice
In order to study chlorine fluorine pyridine ester, bentazone He the security that mutually compounds of fenoxaprop, inventor done with
Lower experiment, tests reference《People's Republic of China (PRC) agricultural industry criteria NY/T 1155.8-2007 farm-chemical indoor determinations are tried
Test criterion-herbicide》8th part：The safety testing cauline leaf spray-on process of crop.
1st, reagent agent
91.4% chlorine fluorine pyridine ester active compound
97% bentazone raw pesticide
95% fenoxaprop active compound
2nd, for studying thing
Paddy rice
For studying the culture of thing using greenhouse pot culture method, with 11 × 12cm plastic tubs, it is placed in shallow-water tank, will make
The soil adopted back in the farmland of used herbicide is air-dried, and basin is filled after sieving, and in basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.After soil is moistened completely from top-watered, rice paddy seed is quantitatively broadcasted sowing in soil surface, according to kind
Sub- size earthing 0.5cm~2.0cm, 28~32 DEG C/18~25 DEG C of indoor temperature (d/n), relative humidity 75% ± 15%.Culture
During using basin alms bowl top irrigation method moisturizing, keep soil be sufficiently humidified so as to.After after rice seedling, paddy rice is set to 5 plants.
3rd, for examination weeds
Lady's-grass, eleusine indica, Monochoria vaginalis, triquetrousc murdannia herb, miliary fimbristylis herb, flat stalk Fischer grass
Culture for trying weeds uses greenhouse pot culture method, 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 basin is filled after sieving, and in basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.After soil is moistened completely with basin alms bowl bottom infiltrating irrigation mode, will pre-process and 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), relatively
Humidity 75% ± 15%.Using the top irrigation method moisturizing of basin alms bowl in incubation, soil is kept to be sufficiently humidified so as to.Treat that weeds emerge
Weeds are respectively set to 5 plants afterwards.
4th, experimental design
Experiment sets 41 treatment altogether, wherein chlorine fluorine pyridine ester set 0.2,0.6,2,6,18g a.i./dosage of mu 5 process,
Bentazone sets 9,27,80,240, the 720g a.i./dosage of mu 5 treatment , fenoxaprops set 0.3,1,3,9,27g a.i./
5 dosage treatment of mu, the fenoxaprop three of chlorine fluorine pyridine ester+bentazone+is mixed to set up 0.5+20+0.75,0.5+40+ separately
1.5、0.5+80+3、0.5+160+6、0.5+320+12、1+20+1.5、1+40+3、1+80+6、1+160+12、1+320+0.75、
2+20+3、2+40+6、2+80+12、2+160+0.75、2+320+1.5、4+20+6、4+40+12、4+80+0.75、4+160+
1.5th, at 25 dosage ratios of 4+320+3,8+20+12,8+40+0.75,8+80+1.5,8+160+3,8+320+6g a.i./mu
Reason, separately sets an auxiliary agent control, and 41 treatment, are repeated 4 times altogether.
5th, test method
Spray in spray tower (ASS-4 type pesticide spraying systems, DG8003 shower nozzles, spray are put when paddy rice and weeds 3-5 leaf phase
Mist pressure 2.75MPa, spouting liquid 30Kg/ mus), observation is cultivated in greenhouse after being placed in after natural air drying.
6th, crop investigation
After dispenser, investigate each treatment paddy rice whether there is symptom of chemical damage, symptom of chemical damage, grade are recorded in detail if having, 21 after medicine
Each treatment paddy rice fresh weight of its measurement, calculates fresh weight inhibition, with clear and definite test medicine to the security of paddy rice.
The poisoning evaluation index of table 4
| Poisoning is classified | Poisoning degree (%) | Result is described |
| 0 | 0 | Safety, without poisoning |
| 1 | 1~10 | Without obvious poisoning |
| 2 | 11~30 | Slight poisoning |
| 3 | 31~50 | Moderate poisoning |
| 4 | ＞ 50 | Serious poisoning |
7th, weedy rices
The growth conditions of periodical visual inspection observation weeds, poisoning symptom and poisoning degree, record symptom of chemical damage after dispenser.After medicine
The fresh weight preventive effect for each treatment 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- treatment weeds aerial part fresh weight, unit for gram.
8th, result and analysis：
Table 5 respectively processes the preventive effect to weeds and the poisoning classification to paddy rice
It can be seen from Table 5 that chlorine fluorine pyridine ester bentazone fenoxaprop mixture is compared with single dose, in weight
Than (0.5-8):(20-320):In the range of (0.75-12), preventive effect to rice terrace main weeds and equal to the security of paddy rice
Higher than single dose, to rice safety.
In sum, chlorine fluorine pyridine ester and bentazone are He fenoxaprop has compounded significant synergy within the specific limits
Effect, to crop safety, complex preparation is not only that rice terrace 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：
Prevent and kill off paddy field weed field control effectiveness test I：
1st, test process
Test and set 12 treatment, 4 repetitions, totally 48 treatment cells, often process 20 square metres of plot area, random district's groups
Arrangement.(1)~(9) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder be reagent agent, (10)~
(12) 3% chlorine fluorine pyridine emulsifiable concentrates, 40% bentazone aqua, 7.5% fenoxaprop aqueous emulsion are comparison medicament.Every mu is converted
30 kilograms of water, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have lady's-grass, eleusine indica, duck tongue
Grass, triquetrousc murdannia herb, miliary fimbristylis herb, flat stalk Fischer grass etc..
2nd, pilot project and method
(1) security：After dispenser, the situation of growing of paddy rice is investigated, evaluate security of the reagent agent to paddy rice.
(2) herbicidal effect：Random per cell to take at 4 points, every is investigated 1/4 square metre, 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 districts Plant Height of Rice, leaf color and blank district basic
Cause, and (10)~(12) treatment region paddy rice to show leaf chlorosis, plant strain growth suppressed, rice seedling height is uneven to wait poisoning disease
Shape, shows the chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder of reagent agent (1)~(9) 34% to paddy rice
Safety.
Herbicidal effect, is shown in Table 6：
Table 6 34% chlorine fluorine pyridine ester bentazone fenoxaprop WP on Rice field weed is prevented and kill off
Effect
Note：(1) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder (0.5:160:0.75)
(2) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (0.75:140:1)
(3) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (1:120:1.5)
(4) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (1.5:100:2)
(5) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (2:80:3)
(6) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (2.5:60:4)
(7) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (3:40:5)
(8) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (3.5:30:5.5)
(9) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (4:20:6)
(10) 3% chlorine fluorine pyridine emulsifiable concentrates
(11) 40% bentazone aquas
(12) 7.5% fenoxaprop aqueous emulsions
(13) blank
As shown in Table 6,34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder pair of different ratio
Common weed strain preventive effect is superior to the chlorine fluorine pyridine emulsifiable concentrate of comparison medicament 3%, 40% weed eradication between 86.85%~97.84%
Loose aqua, 7.5% fenoxaprop aqueous emulsion (weeds strain preventive effect is respectively 54.61%, 48.46% and 41.50%).Wherein
Chlorine fluorine pyridine ester, bentazone He fenoxaprop weight ratio are (0.5-4):(20-160):It is normal to rice terrace when (0.75-6)
See that weeds have obvious preventive effect, weeds strain preventive effect is all more than 86%；Chlorine fluorine pyridine ester, bentazone He fenoxaprop weight ratio
It is (0.75-4):(20-140):When (1-6) to rice terrace common weed preventive effect preferably, weeds strain preventive effect is all more than 90%；And
Chlorine fluorine pyridine ester, bentazone He fenoxaprop weight ratio are 2:80:Preventive effect is more up to 97.84% when 3.Thus illustrate,
Chlorine fluorine pyridine ester, bentazone He fenoxaprop are in weight ratio (0.5-4):(20-160):Compounded in the range of (0.75-6), it is right
The common weeds of rice terrace have preventive effect, and this herbicidal composition to rice safety.
Prevent and kill off paddy field weed field control effectiveness test II：
1st, test process
(1) 17% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder (2:80:3) 250g/ mus
(2) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (2:80:3) 125g/ mus
(3) 85% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (2:80:3) 50g/ mus
Test and set 3 treatment, 4 repetitions, totally 12 treatment cells, often process 20 square metres of plot area, random district's groups
Arrangement.(1)~(3) chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder is reagent agent, and every mu is watered 30
Kilogram, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have lady's-grass, eleusine indica, Monochoria vaginalis, water
The leaf of bamboo, miliary fimbristylis herb, flat stalk Fischer grass etc..
2nd, pilot project and method
Herbicidal effect：Random per cell to take at 4 points, every is investigated 1/4 square metre, 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 chlorine fluorine pyridine ester bentazone fenoxaprops to various weeds after the medicine of table 7
Note：(1) 17% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder (2:80:3)
(2) 34% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (2:80:3)
(3) 85% chlorine fluorine pyridine ester bentazone fenoxaprop wettable powders (2:80:3)
As shown in Table 7, when the weight ratio of chlorine fluorine pyridine ester, bentazone He fenoxaprop is 2:80:When 3, difference contains
The chlorine fluorine pyridine ester bentazone fenoxaprop wettable powder of amount to common weed strain preventive effect more than 97%, table
When bright chlorine fluorine pyridine ester, bentazone He fenoxaprop weight ratio are optimal proportion, the herbicide of different activities component content
Composition has significant preventive effect to paddy field weed.
In sum, rationally, activity when preventive effect is administered alone better than each component is equal to paddy field weed 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
A is divided to be chlorine fluorine pyridine ester, active component B is bentazone, active component C Wei fenoxaprops, the active components A, B and C
Weight ratio be：（0.5-8）:（20-320）:（0.75-12）.
2. herbicidal composition according to claim 1, it is characterised in that the weight ratio of active components A, B and C is：
（0.5-4）:（20-160）:（0.75-6）.
3. herbicidal composition according to claim 2, it is characterised in that the weight ratio of active components A, B and C is：
（0.75-4）:（20-140）:（1-6）.
4. herbicidal composition according to claim 3, it is characterised in that the weight ratio of active components A, B and C is：（1-
3.5）:（30-120）:（1.5-5.5）.
5. herbicidal composition according to claim 4, it is characterised in that the weight ratio of active components A, B and C is： 2:
80:3。
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 10-90%.
7. herbicidal composition according to claim 6, it is characterised in that said composition can be appointing of agriculturally allowing
A kind of formulation.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265855A (en) * | 2010-06-04 | 2011-12-07 | 南京华洲药业有限公司 | Mixed herbicide containing bentazone and fenoxaprop-p-ethyl, and application thereof |
| 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 |
| CN104661524A (en) * | 2012-07-24 | 2015-05-27 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
| CN104936449A (en) * | 2012-07-24 | 2015-09-23 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid or a derivative thereof and certain ps ii inhibitors |
-
2016
- 2016-12-31 CN CN201611267714.4A patent/CN106857563A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265855A (en) * | 2010-06-04 | 2011-12-07 | 南京华洲药业有限公司 | Mixed herbicide containing bentazone and fenoxaprop-p-ethyl, and application thereof |
| 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 |
| CN104661524A (en) * | 2012-07-24 | 2015-05-27 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
| CN104936449A (en) * | 2012-07-24 | 2015-09-23 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid or a derivative thereof and certain ps ii inhibitors |
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