CN103947665B - A kind of composition pesticide and its application containing isoproturon, pretilachlor and diflufenican - Google Patents

A kind of composition pesticide and its application containing isoproturon, pretilachlor and diflufenican Download PDF

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CN103947665B
CN103947665B CN201410108127.5A CN201410108127A CN103947665B CN 103947665 B CN103947665 B CN 103947665B CN 201410108127 A CN201410108127 A CN 201410108127A CN 103947665 B CN103947665 B CN 103947665B
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pretilachlor
diflufenican
isoproturon
weed
pesticide
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CN103947665A (en
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王红春
娄远来
石旭旭
张伟星
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Jiangsu Academy of Agricultural Sciences
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Jiangsu Academy of Agricultural Sciences
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Abstract

The invention discloses a kind of composition pesticide containing isoproturon, pretilachlor and diflufenican and its applications, the active constituent of the composition pesticide is isoproturon, pretilachlor and diflufenican, and the mass ratio of isoproturon, pretilachlor and diflufenican is 10-50: 10-50: 1-20.The composition pesticide shows apparent synergistic effect within the scope of said ratio, reduces the dosage of pesticide, reduces times for spraying, reduces drug cost, reduces pesticide to the adverse effect of ecological environment;Herbicidal spectrum is expanded, a drug had both solved various weed problems, compensated for defects and limitations when single dose uses;The service life for extending medicament, to the comprehensive treatment important in inhibiting of Weed Resistance.Drug effect plays rapidly, and the lasting period is long, and use cost is low, can be used for preventing and treating paddy field gramineae weed, broadleaf weeds and sedge weed and wheat or barley field grass family and broad leaved weeds.

Description

A kind of composition pesticide and its application containing isoproturon, pretilachlor and diflufenican
Technical field
The invention belongs to technical field of pesticide, and in particular to one kind is miscellaneous for preventing and kill off rice, wheat (barley) field grass family The composition pesticide containing isoproturon, pretilachlor and diflufenican of grass, broadleaf weeds and sedge weed.
Background technique
Every year because of disease, worm, crop smothering loss 14%, wherein loss caused by crop smothering is about the production of world's cereal according to statistics 11%, Weed infestation is the key factor for restricting crop yield.The use of chemical herbicide is the important mark of agricultural modernization One of will.In recent years, the sales volume of herbicide increases year by year, and the specific gravity for accounting for pesticide sales volume increases year by year, and administration area expands year by year Greatly.Rice and wheat are the main cereal crops in China, there is consequence in the world.But crop smothering is seriously system The about major obstacle of rice and improving yield of wheat, stable yields.Currently, preventing and kill off for weeds in paddy field mostly uses the mould of " envelope, two kill, three mend " Formula carries out, wheat weeds prevent and kill off then mainly with aryloxyphenoxypropanoates class herbicide cauline leaf after weeds seedling it is spraying based on.Needle at present Have different herbicide kinds available different phase, but most kind it is difficult to ensure that a drug and keep crop entire Without grass in breeding time, the increase of times for spraying undoubtedly substantially increases control cost, has also aggravated the influence to environmental ecology. Especially, paddy field spends more water amaranth and Monochoria vaginalis to bensulfuron-methyl, pyrazosulfuron, wheat paddock clearvers and shepherd's purse to tribenuron-methyl, The resistance problems of bensulfuron-methyl become increasingly conspicuous.Therefore, exploratory development rice and wheat paddock first use and keep crop entire Safe and efficient and different mechanism of action herbicide new compositions without grass in breeding time are particularly important.
Isoproturon, chemical name: 3- (4- isopropyl phenyl) -1,1- dimethyl urea or -3- are to cumenyl -1,1- dimethyl Urea.Belong to phenyl ureagroup herbicides, mainly absorbed by root and cauline leaf and inhibit photosynthesis electron transmission, for before selective seedling, seedling Herbicide afterwards also has selection systemic action.Isoproturon is efficient, broad-spectrum herbicide, can be applied to wheat, corn, rice etc. Grass family and broad leaved weeds are prevented and kill off in the crop fields.
Pretilachlor, chemical name: 2- chloro- 2 ', 6 '-diethyl-N- (2- Among) antifebrin.Belong to chloroacetamide Class herbicide can be absorbed by plant hypocotyl, mesocotyl and plumule, and root slightly absorbs, and inhibit effective division of cell, The synthesis of protein and the formation of polysaccharide are hindered simultaneously, also influences photosynthesis and respiration indirectly.Pretilachlor can have effect The gramineae weeds such as barnyard grass, herba digitariae, semen euphorbiae are prevented and kill off for paddy field, it is simultaneous to control part annual broadleaf weed and Cyperaceae is miscellaneous Grass.
Diflufenican, chemical name: 2 ', 4 '-two fluoro- 2- (methylphenoxy between a, a, a- trifluoro) -3- pyridine acyl benzene Amine.Belong to acetamide-group herbicides, can be absorbed by weed bud and root system, be conducted in plant body, inhibits carotenoid biology Synthesis decolourizes or bleaches so as to cause weed bud.Diflufenican can effectively prevent and kill off barley, wheat, paddy field grass family Weeds and broadleaf weeds.
Summary of the invention
Goal of the invention: in the prior art to farmland weed develop drug resistance problem, single use control efficiency it is poor, First use is difficult to the problem of effectively controlling Weed infestation in rice, wheat entire breeding time, and the object of the present invention is to provide one Kind of the composition pesticide containing isoproturon, pretilachlor and diflufenican, make it have efficiently, it is wide spectrum, environmentally friendly, effectively anti- Except resistant weed, the features such as a drug prevention and control prevention and control rice and kernel time of infertility crop smothering.It is a further object of the present invention to provide one kind The application of the above-mentioned composition pesticide containing isoproturon, pretilachlor and diflufenican.
Technical solution: in order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention are as follows:
A kind of composition pesticide containing isoproturon, pretilachlor and diflufenican, effective component be isoproturon, pretilachlor and Diflufenican, the mass ratio of isoproturon, pretilachlor and diflufenican are 10-50: 10-50: 1-20.
The preferred mass ratio of isoproturon, pretilachlor and diflufenican is 15: 30: 12,15: 40: 12,25: 40: 5,25 : 45: 5,30: 15: 6,25: 25: 7,39: 20: 8 and 40: 30: 5.
A kind of pesticidal preparations 0 containing isoproturon, pretilachlor and diflufenican, the preparation is by containing isoproturon, pretilachlor With the composition pesticide of diflufenican with the acceptable auxiliaries of field of pesticide preparation at pesticide-acceptable any one Kind dosage form.
The dosage form of the pesticidal preparations is wettable powder, water dispersible granules, suspending agent or oil-suspending agent.
Three kinds of herbicidal active components account for the 1-90% of pesticidal preparations total weight in the pesticidal preparations.
The auxiliary material be selected from wetting agent, dispersing agent, spreader-sticker, stabilizer, bleeding agent, thickener, antifreezing agent, defoaming agent, Filler, solvent;Wherein, the wetting agent be neopelex, calcium dodecyl benzene sulfonate, lauryl sodium sulfate, Lignosulfonates, alkyl phenol formaldehyde resin polyoxyethylene ether, aliphatic alcohol sulfate, phenethyl phenol polyethenoxy ether, nonyl phenol One or more of polyoxyethylene ether etc.;The dispersing agent is lignosulfonates, alkylbenzene sulfonate, alkyl phenol polyoxy Vinethene, nonylphenol polyoxyethylene ether, alkyl ethyl sulfonate, alkylnaphthalene sulfonate formaldehyde condensation products and polycarboxylic acid salt one Kind is several;The stabilizer is one or more of epoxidized vegetable oil such as epoxidised soybean oil, epoxidized linseed; The spreader-sticker is polyvinyl alcohol, alkyl diphenyl ether and one of sodium sulfonate, poly- trisiloxanes, triethanolamine oleate or several Kind;The solvent is one or more of soybean oil, methyl oleate, white oil, turpentine methyl naphthalene higher aliphatic hydrocarbon oil;It is described Filler is one or more of white carbon black, cornstarch, kaolin, diatomite, sodium sulphate, ammonium sulfate.
The composition pesticide containing isoproturon, pretilachlor and diflufenican is miscellaneous in prevention and treatment gramineae weed, broad-leaved Grass, sedge weed, weeds in paddy field, the application in wheatland (wheat, barley) weeds.When preventing and treating rice and kernel field weed, rice is (small Wheat or barley) broadcast rear seedling before, use before the 2 leaf phase of rice (wheat or barley), before rice transplanting, after rice transplanting.
The pesticidal preparations containing isoproturon, pretilachlor and diflufenican prevention and treatment gramineae weed, broadleaf weeds, Application in the rice fields such as sedge weed or wheat weeds.When preventing and treating gramineae weed, broadleaf weeds, sedge weed, in Rice or wheat (barley) are broadcast before rear seedling or rice or wheat (barley) broadcast after before 2 leaf phases or before rice transplanting or after rice transplanting It uses.
The production technology of the various application forms of the composition pesticide containing isoproturon, pretilachlor and diflufenican is equal Belong to existing known technology.
Composition pesticide and its pesticidal preparations provided by the invention containing isoproturon, pretilachlor and diflufenican, usually It is used using pesticide-clay mixture, poison fertilizer or spraying method, also can according to need that other techniques used in agriculture may also be adopted.
The utility model has the advantages that compared with prior art, the pesticide combination of the invention containing isoproturon, pretilachlor and diflufenican Object has the advantages that
1) composition pesticide of the invention containing isoproturon, pretilachlor and diflufenican, within a certain ratio range table Reveal apparent synergistic effect, the control efficiency of composition is significantly improved than single dose, reduces the dosage of pesticide, subtracts Lack times for spraying, reduced drug cost, reduces pesticide to the adverse effect of ecological environment.
2) composition pesticide of the invention containing isoproturon, pretilachlor and diflufenican, the combination of three kinds of effective component, Herbicidal spectrum is expanded, a drug had both solved various weed problems, compensated for defects and limitations when single dose uses.
3) composition pesticide of the invention containing isoproturon, pretilachlor and diflufenican, effective component mechanism of action are each It is not identical, the shortcomings that long-term single use can be overcome to be easy to produce resistance, extend the service life of medicament, to Weed Resistance Comprehensive treatment important in inhibiting.
4) composition pesticide of the invention containing isoproturon, pretilachlor and diflufenican, drug effect play rapidly, the lasting period Long, use cost is low, easy to use, time saving and energy saving, and popularization and application have huge economic benefit and social benefit.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below.As described below is only the preferable implementation of the present invention Example, is used only to describe the present invention, should not be understood as limiting the scope of the present invention.It should be pointed out that all in the present invention Spirit and principle within any modifications, equivalent replacements, and improvements etc. done, should be included in protection scope of the present invention it It is interior.
In following embodiment, unless otherwise stated, all percentages are weight percentage.
Embodiment 1:57% isoproturon pretilachlor diflufenican oil-suspending agent
The each component of composition pesticide containing isoproturon, pretilachlor and diflufenican are as follows: isoproturon 15%, pretilachlor 30%, diflufenican 12%, phenethyl phenol polyoxyethylene ether 5%, sodium lignin sulfonate 8%, epoxidized soybean oil 5% has Machine bentonite 5%, methyl oleate to 100%.
After pretilachlor is mixed with filling adsorption, then other above-mentioned materials (except organobentonite) are added to instead together It answers in kettle mixing machine, stirs evenly, material is injected in multistage sand mill and is ground, the fineness of materials after grinding 98% passes through 1- It discharges after 5um, material is put into togerther in high-shear emulsifying kettle with the organobentonite dissolved in advance, can be made into after emulsification 57% isoproturon pretilachlor diflufenican oil-suspending agent.
Embodiment 2:67% isoproturon pretilachlor diflufenican suspending agent
The each component of composition pesticide containing isoproturon, pretilachlor and diflufenican are as follows: isoproturon 15%, pretilachlor 40%, diflufenican 12%, phenethyl phenol polyoxyethylene ether 5%, sodium lignin sulfonate 8%, ethylene glycol 5%, magnesium silicate Aluminium 2%, defoaming agent 0.5%, preservative 0.1%, xanthan gum 0.1%, water to 100%.
After pretilachlor is mixed with filling adsorption, then other above-mentioned materials (except xanthan gum) are added to reaction kettle together It in mixing machine, stirs evenly, material is injected in multistage sand mill and is ground, after the fineness of materials 98% after grinding passes through 1-5um Discharging, material are put into togerther in high-shear emulsifying kettle with the xanthan gum dissolved in advance, can be made into 67% isopropyl after emulsification Grand pretilachlor diflufenican suspending agent.
Embodiment 3:70% isoproturon pretilachlor diflufenican wettable powder
The each component of composition pesticide containing isoproturon, pretilachlor and diflufenican are as follows: isoproturon 25%, pretilachlor 40%, diflufenican 5%, lauryl sodium sulfate 2%, sodium butylnaphthalenesulfonate 3%, calcium lignosulfonate 5%, white carbon black 5%, kaolin to 100%.
After pretilachlor is mixed with filling adsorption, it is added in cone-type mixer and is uniformly mixed together with other above-mentioned materials, It is crushed by airslide disintegrating mill, smashed material is mixed through cone-type mixer again, and mixed fineness of materials 98% passes through 325 Mesh standard sieve obtains 70% isoproturon pretilachlor diflufenican wettable powder.
Embodiment 4:75% isoproturon pretilachlor diflufenican water dispersible granules
The each component of composition pesticide containing isoproturon, pretilachlor and diflufenican are as follows: isoproturon 25%, pretilachlor 45%, diflufenican 5%, lauryl sodium sulfate 4%, metal carboxylate 5%, urea 10% adds kaolin to 100%.
After pretilachlor is mixed with filling adsorption, it is added in cone-type mixer and is uniformly mixed together with other above-mentioned materials, It is crushed by airslide disintegrating mill, smashed material is mixed through cone-type mixer again, and mixed fineness of materials 98% passes through 325 Mesh standard sieve is added in kneader and is kneaded into plasticity material, this material is finally put into extrusion granulation in Squeezinggranulator, is made 75% isoproturon pretilachlor diflufenican water dispersible granules are obtained through drying, screening after grain.
Embodiment 5;51% isoproturon pretilachlor diflufenican oil-suspending agent
The each component of composition pesticide containing isoproturon, pretilachlor and diflufenican are as follows: isoproturon 30%, pretilachlor 15%, diflufenican 6%, lauryl sodium sulfate 2%, sodium butylnaphthalenesulfonate 3%, calcium lignosulfonate 5%, white carbon black 5%, kaolin to 100%.
After pretilachlor is mixed with filling adsorption, then other above-mentioned materials (except organobentonite) are added to instead together It answers in kettle mixing machine, stirs evenly, material is injected in multistage sand mill and is ground, the fineness of materials after grinding 98% passes through 1- It discharges after 5um, material is put into togerther in high-shear emulsifying kettle with the organobentonite dissolved in advance, can be made into after emulsification 51% isoproturon pretilachlor diflufenican oil-suspending agent.
Embodiment 6:57% isoproturon pretilachlor diflufenican suspending agent
The each component of composition pesticide containing isoproturon, pretilachlor and diflufenican are as follows: isoproturon 25%, pretilachlor 24%, diflufenican 8%, phenethyl phenol polyoxyethylene ether 5%, sodium lignin sulfonate 8%, ethylene glycol 5%, aluminium-magnesium silicate 2%, defoaming agent 0.5%, preservative 0.1%, xanthan gum 0.1%, water to 100%.
After pretilachlor is mixed with filling adsorption, then other above-mentioned materials (except xanthan gum) are added to reaction kettle together It in mixing machine, stirs evenly, material is injected in multistage sand mill and is ground, after the fineness of materials 98% after grinding passes through 1-5um Discharging, material are put into togerther in high-shear emulsifying kettle with the xanthan gum dissolved in advance, can be made into 57% isopropyl after emulsification Grand pretilachlor diflufenican suspending agent.
Embodiment 7:67% isoproturon pretilachlor diflufenican wettable powder
The each component of composition pesticide containing isoproturon, pretilachlor and diflufenican are as follows: isoproturon 38%, pretilachlor 20%, diflufenican 9%, lauryl sodium sulfate 2%, sodium butylnaphthalenesulfonate 3%, calcium lignosulfonate 5%, white carbon black 5%, kaolin to 100%.
After pretilachlor is mixed with filling adsorption, it is added in cone-type mixer and is uniformly mixed together with other above-mentioned materials, It is crushed by airslide disintegrating mill, smashed material is mixed through cone-type mixer again, and mixed fineness of materials 98% passes through 325 Mesh standard sieve obtains 67% isoproturon pretilachlor diflufenican wettable powder.
Embodiment 8:75% isoproturon pretilachlor diflufenican water dispersible granules
The each component of composition pesticide containing isoproturon, pretilachlor and diflufenican are as follows: isoproturon 40%, pretilachlor 29%, diflufenican 6%, lauryl sodium sulfate 4%, metal carboxylate 5%, urea 10% adds kaolin to 100%.It is different Third is grand: pretilachlor: diflufenican 40: 29: 6.
After pretilachlor is mixed with filling adsorption, it is added in cone-type mixer and is uniformly mixed together with other above-mentioned materials, It is crushed by airslide disintegrating mill, smashed material is mixed through cone-type mixer again, and mixed fineness of materials 98% passes through 325 Mesh standard sieve is added in kneader and is kneaded into plasticity material, this material is finally put into extrusion granulation in Squeezinggranulator, is made 75% isoproturon pretilachlor diflufenican water dispersible granules are obtained through drying, screening after grain.
9 isoproturon of embodiment, pretilachlor and the screening of diflufenican optimum proportioning
In order to further appreciate that the synergy of isoproturon, pretilachlor and diflufenican mixture to weeds, the present inventor Formulation screening test has been carried out to isoproturon, pretilachlor and diflufenican mixture.
Test material: without awns barnyard grass (Echinochloacrusgali (L.) Beauv.var.mitis (Pursh) Peterm.Fl.), Eclipta prostrata (Edipta prostrata L.), difformed galingale herb (Cyperus difformis L.), 2012 10 The moon picks up from the experimental plot of Jiangsu Province Agriculture Science Institute, and natural air drying, loading paper bag are placed in 4 DEG C of ± 0.5 ice under room temperature after adopting Case saves.
Test apparatus: PWT-510 type spray tower, Mei Tele AB135-S electronic balance, volumetric flask, triangular flask, beaker, amount Cylinder, polypots, pipette, ruler, scissors etc..
Test method: first weighing isoproturon, pretilachlor and the diflufenican raw medicine of certain mass, and it is sufficiently molten that methanol is added The Tween 80 aqueous solution of Xie Houyong 0.1% dilutes, and is configured to single dose mother liquor, and series proportion, Mei Gepei is arranged according to mixed purpose It is stand-by than 5-7 concentration gradient of setting.Polypots (15cm × 11cm × 7cm) is filled into air-dried fine earth, with polypots bottom infiltration Filling mode keeps soil completely wet.Soil is that horse liver is native, pH6.7, and the content of organic matter 1.6% air-dries spare after being sieved.Each Polypots broadcasts no awns barnyard grass 35, Eclipta prostrata 15 respectively, difformed galingale herb 15, broadcasts rear fine earth covering, thickness about 0.2cm.Soil after broadcasting 300m in Jiangsu Province Agriculture Science Institute is put into after earth spraying treatment2Heliogreenhouse culture, keeps the skin wet keep ground moistening daily.
After medicine after emergence and emergence of the routine observation without awns barnyard grass, Eclipta prostrata and difformed galingale herb seedling growing state.30 after medicine Without awns barnyard grass, Eclipta prostrata and difformed galingale herb overground part fresh weight, calculating fresh weight inhibition rate is the preventive effect to target weeds for its investigation.It adopts Single dose isoproturon, pretilachlor, diflufenican and the toxicity regression side of 16 Ternary agent are found out with DPS data processing system Journey calculates ED50Value and 95% confidence limit.Co-toxicity coefficient is calculated with Sun Yunpei's Method.Co-toxicity coefficient is greater than 120 and is expressed as synergy work With being expressed as antagonism less than 80, be expressed as summation action between 80~120.
Test result: medicine is post-processed 20 days and is observed, and isoproturon, pretilachlor and diflufenican press 10-50: 10-50: 1-20 Without awns barnyard grass, Eclipta prostrata and the albefaction of difformed galingale herb partial blade to withered after the application of ratio mixture, to no awns barnyard grass, Eclipta prostrata and difformed galingale herb Inhibiting effect rise with the increase of drug concentration, to no awns barnyard grass, Eclipta prostrata and difformed galingale herb have very high bioactivity.
30 days after medicine, 16 isoproturon, pretilachlor and diflufenican Ternary combinations have the fresh weight of no awns barnyard grass Apparent inhibiting effect (table 1).50: 50: 20,50: 50: 1,50: 10: 20,50: 10: 1,10: 50: 20,10 in 16 proportions: 50∶1、10∶10∶20、10∶10∶1、15∶30∶12、15∶40∶12、25∶40∶5、25∶45∶5、30∶15∶6、25∶25∶7、39∶20 : the co-toxicity coefficient of 8 and 40: 30: 5 proportions is respectively 444.1545,265.7032,541.4741,196.3615,490.9154, 268.8219、218.8394、182.0463、203.8975、154.9671、217.0976、163.2861、165.9964、 269.8282,197.3741 and 234.0347, co-toxicity coefficient is greater than 120, shows as synergistic effect.
1 isoproturon of table-pretilachlor-synergy of the diflufenican mixture without awns barnyard grass fresh weight
16 isoproturon, pretilachlor and diflufenican Ternary combinations also have apparent inhibition to the fresh weight of Eclipta prostrata It acts on, 50: 50: 20,50: 50: 1,50: 10: 20,50: 10: 1,10: 50: 20,10: 50: 1,10: 10: 20,10 in 16 proportions : 10: 1,15: 30: 12,15: 40: 12,25: 40: 5,25: 45: 5,30: 15: 6,25: 25: 7,39: 20: 8 and 40: 30: 5 proportion Co-toxicity coefficient be respectively 149.5360,249.8924,193.9248,179.2362,280.5636,185.9761, 157.5632、321.4211、184.4647、205.0177、246.2978、268.6285、375.5743、419.9775、 268.3159 and 286.2196, co-toxicity coefficient is greater than 120, shows as synergistic effect (table 2).
The synergy of 2 isoproturons of table-pretilachlor-diflufenican mixture Eclipta prostrata fresh weight
Isoproturon has good inhibiting effect to a variety of annual gramineous weeds of rice, and pretilachlor is to annual standing grain Grass, broadleaf weeds and nutgrass flatsedge have good inhibiting effect, and diflufenican has paddy field grass family, broadleaf weeds preferable Control effect, three's mixture can prevent and kill off a variety of weeds of paddy field simultaneously.Isoproturon, pretilachlor and diflufenican press 10-50: 10-50: 1-20 ratio mixture, shows as synergistic effect.
10 field control effectiveness test of embodiment
Reagent agent: mixed herbicide prepared in Examples 1 to 4 is selected.
Comparison medicament: 50% isoproturon wettable powder (commercially available)
30% pretilachlor missible oil (commercially available)
50% diflufenican wettable powder (commercially available)
If artificial weeding and clear water control
Application method: broadcasting spraying treatment before rear seedling, and 30kg/ mus of liquid volume.
Spraying time: referring to the Ministry of Agriculture " pesticide field efficacy medicine test criterion ", direct-sowing dry on June 15 sows rice within 2013 (Huaihe River rice No. 5), June 17 are administered according to design dosage.
Respondent and method: barnyard grass, semen euphorbiae, Eclipta prostrata, nutgrass flatsedge, the fresh weight and rice of 30d investigation weeds is fresh after medicine Weight and plant height.
Test results and analysis are shown in Table 3 and table 4 respectively.
3 field control effectiveness test result of table (15d after medicine)
From table 3 it is observed that the present invention has obvious effects on paddy field barnyard grass, semen euphorbiae, Eclipta prostrata, nutgrass flatsedge, preventive effect Higher than single dose preventive effect, and there is preferable quick-acting and lasting effect;From 4 kinds of table we have observed that the present invention is to rice japonica rice seedling ratio Long-grained nonglutinous rice seedling safety wants high.
20 days Plant Height of Rice, tiller and fresh weight after 4 medicine of table.
Embodiment 11
Referring to the method for embodiment 10, field control effectiveness test is carried out to mixed herbicide made from embodiment 5-8, it was demonstrated that: Each mixed herbicide has apparent synergistic effect, all has significant preventive effect to paddy field weed, and significant effect is better than single dose It uses, and the lasting period is long.

Claims (9)

1. a kind of composition pesticide containing isoproturon, pretilachlor and diflufenican, it is characterised in that: active constituent is isopropyl Grand, pretilachlor and diflufenican, the mass ratio of isoproturon, pretilachlor and diflufenican are 10-50: 10-50: 1-20.
2. a kind of pesticidal preparations containing isoproturon, pretilachlor and diflufenican, it is characterised in that: the preparation is by claim Composition pesticide and the acceptable auxiliaries of field of pesticide preparation containing isoproturon, pretilachlor and diflufenican described in 1 At any one dosage form pesticide-acceptable.
3. the pesticidal preparations according to claim 2 containing isoproturon, pretilachlor and diflufenican, it is characterised in that: institute The dosage form for stating pesticidal preparations is wettable powder, water dispersible granules, suspending agent, microemulsion, finish, suspoemulsion, missible oil, water dispersion Granula, aqueous emulsion or oil-suspending agent.
4. the pesticidal preparations according to claim 2 containing isoproturon, pretilachlor and diflufenican, it is characterised in that: institute State the 1-90% that effective component in preparation accounts for weight of formulation.
5. the pesticidal preparations according to claim 2 containing isoproturon, pretilachlor and diflufenican, it is characterised in that: institute It states auxiliary material and is selected from wetting agent, dispersing agent, spreader-sticker, stabilizer, bleeding agent, thickener, antifreezing agent, defoaming agent, filler, solvent; Wherein, the wetting agent is neopelex, calcium dodecyl benzene sulfonate, lauryl sodium sulfate, lignin sulfonic acid Salt, alkyl phenol formaldehyde resin polyoxyethylene ether, aliphatic alcohol sulfate, phenethyl phenol polyethenoxy ether, nonylphenol polyoxyethylene ether One or more of;The dispersing agent is lignosulfonates, alkylbenzene sulfonate, alkyl phenol polyoxyethylene ether, nonyl phenol The one or more of polyoxyethylene ether, alkyl ethyl sulfonate, alkylnaphthalene sulfonate formaldehyde condensation products and polycarboxylic acid salt;It is described Stabilizer be one or more of epoxidized vegetable oil such as epoxidised soybean oil, epoxidized linseed;The spreader-sticker is Polyvinyl alcohol, alkyl diphenyl ether and one or more of sodium sulfonate, poly- trisiloxanes, triethanolamine oleate;The solvent is One or more of soybean oil, methyl oleate, white oil, turpentine methyl naphthalene higher aliphatic hydrocarbon oil;The filler be white carbon black, One or more of cornstarch, kaolin, diatomite, sodium sulphate, ammonium sulfate.
6. the composition pesticide described in claim 1 containing isoproturon, pretilachlor and diflufenican is in prevention and treatment rice field or wheatland Gramineae weed, broadleaf weeds, the application in sedge weed.
7. application according to claim 6, it is characterised in that: prevention and treatment rice field or cornfield gramineae weed, broadleaf weeds, When sedge weed, used before 3 leaf phases or before rice transplanting or after rice transplanting before broadcasting rear seedling or after broadcasting.
8. the described in any item pesticidal preparations containing isoproturon, pretilachlor and diflufenican of claim 2-5 are in prevention and treatment rice field Or the application in cornfield gramineae weed, broadleaf weeds, sedge weed.
9. application according to claim 8, it is characterised in that: in prevention and treatment gramineae weed, broadleaf weeds, sedge weed When, it is used before 3 leaf phases or before rice transplanting or after rice transplanting before broadcasting rear seedling or after broadcasting.
CN201410108127.5A 2014-03-21 2014-03-21 A kind of composition pesticide and its application containing isoproturon, pretilachlor and diflufenican Active CN103947665B (en)

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