CN107996584A - A kind of herbicidal composition containing flurtamone - Google Patents
A kind of herbicidal composition containing flurtamone Download PDFInfo
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- CN107996584A CN107996584A CN201711188644.8A CN201711188644A CN107996584A CN 107996584 A CN107996584 A CN 107996584A CN 201711188644 A CN201711188644 A CN 201711188644A CN 107996584 A CN107996584 A CN 107996584A
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- Prior art keywords
- flurtamone
- diflufenican
- pyrrole grass
- sulfone pyrrole
- grass azoles
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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
- A01N43/80—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 1,2
-
- 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
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/08—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings with oxygen as the ring hetero atom
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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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- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to technical field of pesticide, more particularly to a kind of Herbicidal combinations using sulfone pyrrole grass azoles, flurtamone and diflufenican as active ingredient, the weight ratio of active ingredient sulfone pyrrole grass azoles, isoproturon and diflufenican is (3 48) in the Herbicidal combinations:(12‑184):(3.3 52), percentage composition of the active ingredient in herbicidal composition are 10 90%.Herbicidal composition of the present invention has synergistic function, significantly improves herbicidal effect compared with the exclusive use of each single dose or binary use, expands herbicide controlling spectrum, while reduces Pesticide use amount, alleviates the pollution to environment, has delayed the generation of herbicide resistance.
Description
【Technical field】
The invention discloses a kind of herbicide composition for wheat field, specifically disclose it is a kind of with sulfone pyrrole grass azoles, flurtamone and
Diflufenican is used for the herbicidal composition of eliminating weed in wheat field for active ingredient.
【Background technology】
Wheat is one of cereal crops important in the world, and cultivated area is big, and crop smothering area is also big.Generally investigated according to national weeds
Document announcement, China's wheat weeds species have kind more than 200, and can crop smothering area accounts for more than the 30% of wheat planting area, and have
Crop smothering in effect control wheatland, stablizes improving yield of wheat and also becomes one of major subjects of modern agricultural herbicide research.For a long time
Continuous high dose applies single chemical herbicide, be easy to cause environmental pollution, crop generation poisoning and weeds are also easy to produce
The problems such as resistance to the action of a drug.Simultaneously as mutually complexity, species are various for grass when weeds in field occurs, such as grassy weed, broad leaved weed
The defects of weeds mixing occurs, and the use of single variety cannot effectively solve the problems, such as this, can show in a certain respect.Cause
This, these medicaments have been unable to meet the needs of wheatland management of weeds, select different types of herbicide mixture just into when previous
The effective control measure of kind, makes the pesticide of performance complement play optimal synergy work by adjusting the proportioning of different pesticides
With.
Sulfone pyrrole grass azoles (Pyroxasulfone), other titles：Send Roc herbicide sulfone, Bi Evil herbicide sulfones, chemical name：3-
[5- (difluoro-methoxy) -1- methyl -3- (trifluoromethyl) pyrazoles -4- ylmethyls sulfonyl] -4,5- dihydro -5,5- dimethyl -
1,2- oxazole, structural formula are：
Sulfone pyrrole grass azoles is the novel pyrazoles weeding for being found and being formulated by prosperous centre of paddy in Japanese K-I chemistry institutes etc. earliest
Agent.For the herbicide available for soil treatment before the bud of most of the crop fields, its mechanism of action is approximate with Acetochlor, can be by weeds root
Absorbed with young shoot, suppress seeding previous vigor, but it also has novel mechanism of action, and it is by disturbing Long chain fatty acid
Synthesize to suppress weeds growth of seedling, herbicidal effect is good, and bioactivity is much larger than Acetochlor and isopropyl methoxalamine；It can be applied to jade
A series of crops such as rice, soybean, cotton, peanut, wheat, sunflower, potato, can effectively anti-grassy weed and a variety of broad-leaveds
Weeds, such as lady's-grass, wild oat, Triticum tauschii, barnyard grass, green bristlegrass, but it is poor to part broad leaved weed preventive effect.
Flurtamone (Flurtamone), chemical name：(RS) -5- methylaminos -2- phenyl -4- (the fluoro- m- first of α, α, α-three
Phenyl) furans 3 (2H) -one, structural formula is：
Flurtamone is phenyl furannes herbicide, available for before plantation, before seedling or after seedling processing.Belong to carotenoid
Synthetic inhibitor, it hinders the biosynthesis of carotenoid by suppressing phytoene desaturase, passes through plant roots
Absorb and work with bud, universal chlorisis albinism is presented immediately after sensitive varieties germination.Can be used for wheat paddock prevent and kill off it is wealthy
Leaf weeds and part grassy weed, are used alone ineffective to clearvers, chickweed, Veronica, corn gromwell.
Diflufenican (Diflufenican), other titles：Diflufenican, chemical name：Bis- fluoro- 2- of 2,4- (α, α, α-
Methylphenoxy between trifluoro) -3- pyridine anilides, structural formula is：
Diflufenican is substituted pyridinyl acyl aniline herbicide, belongs to herxheimer-liked reaction inhibitor.Located
Carotenoid content declines in the plant of reason, and then causes Destruction of Chlorophyll and cell rupture, weeds show as young shoot decoloration or
Bleach.The medicine soil layer of anti-leaching can be formed in upper table by being applied before weeds germinate, because its in the soil the longevity of residure it is longer, so can
To keep activity in crop whole growth period；When weed germination, medicament can be absorbed by young shoot or root system and finally resulted in extremely
Die.The various broad leaved weeds such as clearvers, Veronica, chickweed, Descurainia sophia are prevented and kill off suitable for barley, wheat paddock, can also prevent and kill off part
Grassy weed, but it is poor to preventive effects such as dayflower, wild oat, bromegrass, Siberian cocklebur, corn gromwells.
It is not only of high cost that any one above-mentioned herbicide is used alone, and herbicide controlling spectrum is limited, and it is heavy dose of safe to use
Property is poor, it is difficult to reaches the effect that disposable safe prevents and kill off a variety of weeds.Therefore, people usually mutually compound any of the above single dose
Or be used in mixed way with other herbicides, such as：
Patent CN201611015982.7 discloses sulfone pyrrole grass azoles and the composition of diflufenican compounding, said composition pair
The preventive effects such as part weeds such as corn gromwell are poor, and heavy dose of mixed it cannot be guaranteed that security.
In addition, diflufenican and flufenacet and the product of flurtamone compounding have been widely used for wheat paddock, the production
Product can effectively prevent and kill off wheat paddock major part broad leaved weed and grassy weed, and effect is preferable, but it also has shortcoming：Than
Such as to reveal seed crab rooting wheat seeding there are certain risk, pernicious grassy weed preventive effect refractory to part is not good enough, enterprise operations cost
It is higher.
In order to make up each single dose of the above and report complex preparation existing deficiency in actual use, the present inventor
Further investigate, have been surprisingly found that, will be killed with difference on the basis of the screening of substantial amounts of formula indoor and field control effectiveness test
Three kinds of medicaments that grass is composed and had his own strong points compound in certain ratio range, can both make up sulfone pyrrole grass azoles, flurtamone and pyrrole fluorine
The defects of three kinds of herbicide herbicide controlling spectrums of acyl grass amine are narrow, turn avoid and poisoning is produced to this season crop and produces residual to succession crop
The possibility of murder by poisoning.It is alone in limitation present on herbicide controlling spectrum, preventive effect and security to solve herbicide, has reached expansion and has killed
Grass spectrum, the purpose for improving preventive effect, improving security.
【The content of the invention】
The purpose of the present invention is seeking a kind of new wheat field herbicide composition, to make up wheatland Common Herbicides not
Foot, a kind of available closed soil treatment herbicide conscientiously is provided for wheatland.Said composition both it is active it is high, dosage is few, into
The advantages of this is low, and have the characteristics that broad weed-killing spectrum, security are good, synergistic effect is obvious.
Present invention employs following technical solution：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 sulfone pyrrole grass azoles, and active ingredient B is flurtamone, and active ingredient C is diflufenican.
Specifically, the weight ratio of active components A, B and C is in the herbicidal composition：(3-48):(12-184):
(3.3-52), is preferably：(4.5-36):(17.5-138):(5-39), more preferably：(6-24):(23-92):(6.5-
26), still more preferably for：(9-18):(34.5-69):(10-19.5), optimum weight ratio are：12:46:13.
Present invention also offers the preparation containing above-mentioned composition, the weight percentage of active ingredient is in the preparation
10-90%.
According to different use needs or applying environment, herbicidal composition of the present invention, which can be prepared into, agriculturally to be permitted
Perhaps any formulation, as preferred herbicidal composition of the present invention can be prepared into missible oil, suspending agent, dispersible oil-suspending agent,
The formulations such as wettable powder, water dispersible granules, are more preferably suspending agent.
For missible oil, can used additives include：
Emulsifying agent is selected from Nongru-700 #, calcium dodecyl benzene sulfonate, agriculture breast 2201#, sorbitan monostearate, agriculture
One or more in newborn 1601# etc.；
One or more of the solvent in toluene, dimethylbenzene, methanol, methyl oleate, acetone etc..
For suspending agent, can used additives include：
Dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, polyaryl phenol polyethenoxy ether phosphoric acid
One or more in ester, alkylphenol polyoxyethylene ether etc.；
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 etc.；
One kind in xanthans, carboxymethyl cellulose, Sodium Polyacrylate, bentonite, aluminium-magnesium silicate etc. of thickener or
It is a variety of；
One or more of the antifreezing agent in ethylene glycol, propane diols, glycerine, urea etc.；
One or more of the preservative in sorbic acid, sodium benzoate etc.；
Defoamer can be organic silicon defoamer；
Appropriate amount of deionized water.
For 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, alkylphenol polyoxyethylene ether phosphate, alkane
One or more in base sulfate, alkylsulfonate, naphthalene sulfonate etc.；
Emulsifying agent is selected from castor oil polyoxyethylene ether, calcium dodecyl benzene sulfonate, Nongru-700 #, agriculture breast 2201#, dehydration mountain
One or more in pears alcohol monostearate ester APEO etc.；
One or more of the thickener in bentonite, polyvinyl alcohol, xanthans, aluminium-magnesium silicate etc.；
Defoamer can be organic silicon defoamer；
One or more of the cosolvent in toluene, dimethylbenzene, dimethyl sulfoxide (DMSO) etc.；
One or more of the decentralized medium in corn oil, soybean oil, rapeseed oil, methyl oleate etc..
For wettable powder, can used additives include：
Dispersant is selected from lignosulfonates, polycarboxylate, alkylnaphthalene sulfonate, neopelex, alkyl and gathers
One or more in ethylene oxide ether sulfonate or alkylphenol-polyethenoxy base ether formaldehyde condensation products etc.；
Wetting agent is selected from lauryl sodium sulfate, Teepol, naphthalene sulfonate, aliphatic alcohol sulfate or alkyl sulfonic acid
One or more in salt etc.；
One or more of the carrier in kaolin, diatomite, attapulgite, bentonite or white carbon etc..
For water dispersible granules, can used additives include：
Dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, neopelex, alkyl and gathers
One or more in ethylene oxide ether sulfonate etc.；
Wetting agent is selected from naphthalene sulfonate, aliphatic alcohol sulfate, dodecyl benzene sulfonate, lauryl sodium sulfate, alkyl
One or more in sulfonate etc.；
Disintegrant is selected from ammonium sulfate, urea, cornstarch and its derivative, low-substituted hydroxypropyl cellulose, polyethylene pyrrole
One or more in pyrrolidone 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 in kaolin, bentonite, diatomite, precipitated calcium carbonate, gypsum, attapulgite, urea or sucrose etc.
One or more.
Salt such as polycarboxylate, lignosulfonates etc. described in above-mentioned auxiliary agent are sodium salt or calcium salt.
Herbicidal composition provided by the invention is mainly used for eliminating weed in wheat field, compared with prior art, the present invention
Possesses following beneficial effect：
1st, activity of weeding is high.Three kinds of active ingredient synergy of composition of the present invention, drastically increase herbicide
Removing activity, and Weed Resistance is produced speed and is reduced.
2nd, broad weed-killing spectrum, lasting period length.Three is combined into these three medicaments with medicament made from special ratios mixture
Herbicide controlling spectrum and activity so that the herbicide controlling spectrum of mix preparation is wider, and the lasting period is longer.
3rd, it is safe.The herbicidal composition of the present invention, three kinds of active ingredients compound performance in certain ratio range
Go out fabulous synergistic function, mixed composition significantly improves herbicidal effect compared with single dose, so as to reduce using agent
Amount, on the premise of drug effect is improved, to wheat safety.
【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 preferable embodiment of the present 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 all be included in the protection scope of the present invention.
Example of formulations 1：34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent
By above-mentioned raw materials by formula rate after mixing, frequent regulation disperses for method, that is, high speed shear of suspending agent
30min, the 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent is sanded to obtain with sand mill.
Example of formulations 2：15% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent
By above-mentioned raw materials by formula rate after mixing, first high speed shear is disperseed, then is ground, up to described 15%
Sulfone pyrrole grass azoles flurtamone diflufenican suspending agent.
Example of formulations 3：42% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent
By above-mentioned raw materials by formula rate after mixing, first high speed shear is disperseed, then is ground, up to described 42%
Sulfone pyrrole grass azoles flurtamone diflufenican suspending agent.
Example of formulations 4：27% sulfone pyrrole grass azoles flurtamone diflufenican missible oil
First sulfone pyrrole grass azoles, isoproturon, halosulfuronmethyl are dissolved completely with part dimethylbenzene, then remaining auxiliary agent is added successively
Enter, finally complement to 100% with dimethylbenzene, be mixed into homogeneous oil phase, obtain 27% sulfone pyrrole grass azoles flurtamone diflufenican
Missible oil.
Example of formulations 5：The 50% dispersible oil-suspending agent of sulfone pyrrole grass azoles flurtamone diflufenican
By above-mentioned raw materials by formula rate after mixing, first high speed shear is disperseed, then is ground, up to described 50%
The dispersible oil-suspending agent of sulfone pyrrole grass azoles flurtamone diflufenican.
Example of formulations 6：79.5% sulfone pyrrole grass azoles flurtamone diflufenican wettable powder
By above-mentioned raw materials by formula rate after mixing, frequent regulation is for the method for wettable powder, i.e., preceding mixing, gas
Stream crushes, rear mixing, obtains 79.5% sulfone pyrrole grass azoles flurtamone diflufenican wettable powder.
Example of formulations 7：63% sulfone pyrrole grass azoles flurtamone diflufenican wettable powder
By above-mentioned raw materials by formula rate after mixing, frequent regulation is for the method for wettable powder, i.e., preceding mixing, gas
Stream crushes, rear mixing, obtains 63% sulfone pyrrole grass azoles flurtamone diflufenican wettable powder.
Example of formulations 8：46% sulfone pyrrole grass azoles flurtamone diflufenican wettable powder
By above-mentioned raw materials by formula rate after mixing, frequent regulation is for the method for wettable powder, i.e., preceding mixing, gas
Stream crushes, rear mixing, obtains 46% sulfone pyrrole grass azoles flurtamone diflufenican wettable powder.
Example of formulations 9：70% sulfone pyrrole grass azoles flurtamone diflufenican water dispersible granules
By above-mentioned raw materials by formula rate after mixing, frequent regulation is for the method for water dispersible granules, i.e., preceding mixing, gas
Stream crushes, mixing plus water are mediated, are granulated, sieved afterwards, obtains 70% sulfone pyrrole grass azoles flurtamone diflufenican water-dispersible grain
Agent.
Example of formulations 10：83% sulfone pyrrole grass azoles flurtamone diflufenican water dispersible granules
By above-mentioned raw materials by formula rate after mixing, frequent regulation is for the method for water dispersible granules, i.e., preceding mixing, gas
Stream crushes, mixing plus water are mediated, are granulated, sieved afterwards, obtains 83% sulfone pyrrole grass azoles flurtamone diflufenican water-dispersible grain
Agent.
It is raw to survey embodiment 1：
Sulfone pyrrole grass azoles, flurtamone and diflufenican compounding synergy measure and Herbicidal experiment
In order to prevent and kill off the weeds of wheat in agricultural production, inventor has carried out sulfone pyrrole grass azoles, flurtamone and pyrrole fluorine acyl grass
The synergistic effect research that amine mutually compounds, carries out soil treatment 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 instructed in effect measure.
1st, reagent agent
93% sulfone pyrrole grass azoles active compound
98% flurtamone active compound
97% diflufenican active compound
2nd, for trying weeds
Wild oat, corn gromwell, clearvers
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 air-dries, and basin is filled after sieving, and dry ground is quantified at 4/5 in basin, and 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, pretreatment is quantitatively spread for examination weed seed
Soil surface is sowed at, it is relatively wet according to seed size earthing 0.5cm-1.0cm, indoor temperature 28-32 DEG C/18-25 DEG C (d/n)
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.Sow 24h standby
With.
3rd, experimental design
Experiment sets 41 processing altogether, wherein sulfone pyrrole grass azoles set 3,6,12,24, the 48g a.i./dosage of mu 5 processing, furan is careless
Ketone sets 12,23,46,92, the 184g a.i./dosage of mu 5 processing, diflufenican sets 3.3,6.5,13,26,52g a.i./mu
5 dosage processing, sulfone pyrrole grass azoles+flurtamone+diflufenican three use with and set up 3+12+3.3,3+23+6.5,3+46+13,3 separately
+92+26、3+184+52、6+12+6.5、6+23+13、6+46+26、6+92+52、6+184+3.3、12+12+13、12+23+26、
12+46+52、12+92+3.3、12+184+6.5、24+12+26、24+23+52、24+46+3.3、24+92+6.5、24+184+
13rd, 48+12+52,48+23+3.3,48+46+6.5,48+92+13,48+184+26g a.i./dosage ratio of mu 25 processing,
It is another to set an auxiliary agent control, amount to 41 processing, be repeated 4 times.
4th, test method
Sowing 24h is placed on spray (ASS-4 type pesticide spraying systems, DG8003 nozzles, atomisation pressure in spray tower
2.75MPa, 30Kg/ mus of spouting liquid), natural air drying, which is placed in greenhouse, cultivates observation.
5th, weedy rices and analysis method
After dispenser, routine observation records the growth conditions after weeds emergence situation and emergence.Weigh overground part within 30 days after medicine
Divide fresh weight, calculate weeds survival rate E, and using the type of action of the mixed medicament of Colby methods evaluation, the further conjunction for inquiring into proportioning
Rationality.
The check plot weeds fresh weight ... ... ... ... ... (1) of E=treatment region weeds fresh weight × 100/
Colby method calculation formula：
The weeds survival rate of herbicide A when X --- dosage is P；
The weeds survival rate of herbicide B when Y --- dosage is Q；
The weeds survival rate of herbicide C when Z --- dosage is W；
E0--- the theoretical weeds survival rate of herbicide (A+B+C) when dosage 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 1 sulfone pyrrole grass azoles of table, flurtamone and diflufenican mixture to wild oat
Sulfone pyrrole grass azoles, the flurtamone co-toxicity to wild oat mixed with diflufenican：Sulfone pyrrole grass azoles is to wild oat
Preventive effect is good, flurtamone and diflufenican to wild oat to no effect, with the increase of sulfone pyrrole grass azoles dosage, to wild oat after using with
Preventive effect improve.
The actual measurement survival rate and theoretical survival rate of 2 sulfone pyrrole grass azoles of table, flurtamone and diflufenican mixture to corn gromwell
Sulfone pyrrole grass azoles, the flurtamone co-toxicity to corn gromwell mixed with diflufenican：Flurtamone and diflufenican
Preferable to the preventive effect of corn gromwell, sulfone pyrrole grass azoles is poor to the preventive effect of corn gromwell, with the increase of flurtamone and diflufenican dosage,
The preventive effect of corn gromwell is improved after mixed.
The actual measurement survival rate and theoretical survival rate of 3 sulfone pyrrole grass azoles of table, flurtamone and diflufenican mixture to clearvers
Sulfone pyrrole grass azoles, the flurtamone co-toxicity to clearvers mixed with diflufenican：Diflufenican is to clearvers
Preventive effect it is good, sulfone pyrrole grass azoles and flurtamone are undesirable to clearvers preventive effect, right after using with the increase of diflufenican dosage
The preventive effect of clearvers improves.
Toxicity Determination the result shows that, sulfone pyrrole grass azoles, flurtamone and diflufenican are at weight ratio (3-48):(12-
184):Used with the range of (3.3-52) and weeds are shown as with significant synergistic effect, expand herbicide controlling spectrum, reached while anti-
Except the purpose of wheat paddock main weeds.
It is raw to survey embodiment 2：
The safety testing of sulfone pyrrole grass azoles, flurtamone and diflufenican compounding to wheat
For the security for studying sulfone pyrrole grass azoles, flurtamone and diflufenican mutually compound, inventor has done following examination
Test, test reference《People's Republic of China's agricultural industry criteria NY/T 1155.6-2006 farm-chemical indoor determinations experiment is accurate
Then-herbicide》6th part：To the safety testing soil spray-on process of crop.
1st, reagent agent
93% sulfone pyrrole grass azoles active compound
98% flurtamone active compound
97% diflufenican 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 air-dries, and basin is filled after sieving, and dry ground is quantified at 4/5 in basin, and 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, wheat seed is quantified and is broadcasted sowing in soil table
Face, according to seed size earthing 0.5cm-2.0cm, indoor temperature 28-32 DEG C/18-25 DEG C (d/n), relative humidity 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.It is spare after sowing 24h.
3rd, for trying weeds
Wild oat, Triticum tauschii, corn gromwell, Veronica, clearvers, Descurainia sophia
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 air-dries, and basin is filled after sieving, and dry ground is quantified at 4/5 in basin, and 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, pretreatment is quantitatively spread for examination weed seed
Soil surface is sowed at, it is relatively wet according to seed size earthing 0.5cm-1.0cm, indoor temperature 28-32 DEG C/18-25 DEG C (d/n)
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.Sow 24h standby
With.
4th, experimental design
Experiment sets 41 processing altogether, wherein sulfone pyrrole grass azoles set 1,4,12,36, the 108g a.i./dosage of mu 5 processing, furan is careless
Ketone sets 5,15,46,138, the 414g a.i./dosage of mu 5 processing, diflufenican sets 1.3,4,13,39,117g a.i./mu 5
A dosage processing, sulfone pyrrole grass azoles+flurtamone+diflufenican three use with and set up 3+12+3.3,3+23+6.5,3+46+13,3+ separately
92+26、3+184+52、6+12+6.5、6+23+13、6+46+26、6+92+52、6+184+3.3、12+12+13、12+23+26、
12+46+52、12+92+3.3、12+184+6.5、24+12+26、24+23+52、24+46+3.3、24+92+6.5、24+184+
13rd, at 48+12+52,48+23+3.3,48+46+6.5,48+92+13,48+184+26g g a.i./dosage ratio of mu 25
Reason, separately sets an auxiliary agent control, amounts to 41 processing, be repeated 4 times.
5th, test method
After sowing 24h, spray (ASS-4 type pesticide spraying systems, DG8003 nozzles, atomisation pressure in spray tower is placed in
2.75MPa, 30Kg/ mus of spouting liquid), treat that natural air drying is placed in greenhouse and cultivate observation.
6th, crop is investigated
After dispenser, routine observation records the growth conditions after crop emergence situation and emergence.Investigate each processing wheat whether there is
Symptom of chemical damage, records symptom of chemical damage, grade, each processing wheat fresh weight is measured within 30 days after medicine, fresh weight is calculated and suppresses in detail if having
Rate, the security with clear and definite test medicine to wheat.
4 poisoning evaluation index of table
| 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 | 50-100 | Serious poisoning |
7th, weedy rices
Growth conditions, poisoning symptom and the poisoning degree of periodical visual inspection observation weeds, record symptom of chemical damage after dispenser.After medicine
30 days fresh weight preventive effects that each processing is calculated using growth inhibition assay.
Growth inhibition assay calculation formula：
In formula：
E-fresh weight preventive effect, unit are percentage (%)；
T0- control weeds aerial part fresh weight, unit are gram；
T1- processing weeds aerial part fresh weight, unit are 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 sulfone pyrrole grass azoles flurtamone diflufenican mixture is compared with single dose, in weight ratio (3-
48):(12-184):In the range of (3.3-52), preventive effect to weeds of wheat and single dose is above to the security of wheat, it is right
Wheat safety.
Make in conclusion sulfone pyrrole grass azoles has compounded significant synergy within the specific limits with flurtamone and diflufenican
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
Experiment sets 13 processing, and 4 repetitions, totally 52 processing cells, often handle 20 square metres of plot area, random district's groups
Arrangement.(1)-(9) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent is reagent agent, 40% sulfone of (10)-(12)
Pyrrole grass azole suspending agent, 15% flurtamone suspending agent, 50% diflufenican wettable powder are comparison medicament.It is public that 30 are watered per acre
Jin, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have wild oat, Triticum tauschii, corn gromwell, mother-in-law
Procumbent speedwell, clearvers, Descurainia sophia etc..
2nd, pilot project and method
(1) security：After dispenser, the growth and development situation of wheat, security of the evaluation reagent agent to wheat are investigated.
(2) herbicidal effect：Take at random per cell at 4 points, investigate 1/4 square metre, investigation weed control in 30 days after dispenser at every
Effect, records weeds species and strain number respectively, calculates weeds strain preventive effect.
(3) result of the test
Security：Investigation finds (1)-(9) chemicals treatment district wheat emergence situation, plant height, leaf color and blank pair after dispenser
It is basically identical according to area, and (10)-(12) treatment region wheat shows that leaf chlorosis, plant strain growth are suppressed, and wheat seeding height is uneven
Deng symptom of chemical damage, show 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent of reagent agent (1)-(9) to wheat
Safety.
Herbicidal effect, is shown in Table 6：
Preventive effect of the 6 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent of table to weeds of wheat
Note：(1) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent (3:184:52)
(2) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (4.5:138:39)
(3) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (6:92:26)
(4) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (9:69:19.5)
(5) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (12:46:13)
(6) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (18:34.5:10)
(7) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (24:23:6.5)
(8) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (36:17.5:5)
(9) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (48:12:3.3)
(10) 40% sulfone pyrrole grass azole suspending agents
(11) 15% flurtamone suspending agents
(12) 50% diflufenican wettable powders
(13) blank control
As shown in Table 6,34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent of different ratio is to common weed
Strain preventive effect is superior to 40% sulfone pyrrole grass azole suspending agent of comparison medicament, 15% flurtamone suspends between 86.77%-96.18%
Agent, 50% diflufenican wettable powder (weeds strain preventive effect is respectively 59.02%, 45.67% and 65.30%).Wherein sulfone
Pyrrole grass azoles, flurtamone and diflufenican weight ratio are (3-48):(12-184):Have when (3.3-52) to wheat paddock common weed
Obvious preventive effect, weeds strain preventive effect is all more than 86%；Sulfone pyrrole grass azoles, flurtamone and diflufenican weight ratio are (4.5-36):
(17.5-138):Preferable to wheat paddock common weed preventive effect when (5-39), weeds strain preventive effect is all more than 90%；And sulfone pyrrole is careless
Azoles, flurtamone and diflufenican weight ratio are 12:46:Preventive effect is more up to 96.18% when 13.Thus illustrate, sulfone pyrrole grass azoles,
Flurtamone and diflufenican are at weight ratio (3-48):(12-184):Compounded in the range of (3.3-52), common to wheat paddock is miscellaneous
Grass 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% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent (12:46:13) 222.2g/ mus
(2) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (12:46:13) 118g/ mus
(3) 49% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (12:46:13) 81.6g/ mus
(4) blank control
Experiment sets 4 processing, and 4 repetitions, totally 16 processing cells, often handle 20 square metres of plot area, random district's groups
Arrangement.(1)-(3) sulfone pyrrole grass azoles flurtamone diflufenican suspending agent is reagent agent, is watered 30 kilograms per acre, is used
552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have wild oat, Triticum tauschii, corn gromwell, Veronica, pig
Bring disaster to calamity, Descurainia sophia etc..
2nd, pilot project and method
Herbicidal effect：Take at random per cell at 4 points, investigate 1/4 square metre, 30 days investigation weed control effects after dispenser at every
Fruit, records weeds species and strain number respectively, calculates weeds strain preventive effect.
3rd, result of the test：Herbicidal effect is shown in Table 7
Preventive effect of 30 days sulfone pyrrole grass azoles flurtamone diflufenicans to various weeds after 7 medicine of table
Note：(1) 18% sulfone pyrrole grass azoles flurtamone diflufenican suspending agent (12:46:13)
(2) 34% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (12:46:13)
(3) 49% sulfone pyrrole grass azoles flurtamone diflufenican suspending agents (12:46:13)
(4) blank control
As shown in Table 7, when the weight ratio of sulfone pyrrole grass azoles, flurtamone and diflufenican is 12:46:When 13, different content
Sulfone pyrrole grass azoles flurtamone diflufenican wettable powder to common weed strain preventive effect more than 97%, show sulfone pyrrole
When careless azoles, flurtamone and diflufenican weight ratio are optimal proportion, the herbicidal composition of different activities component content is to small
Wheat weeds have significant preventive effect.
In conclusion instant component is reasonable, activity when preventive effect is administered alone better than each component is equal to weeds of wheat
There is good preventive effect, expand control of weeds spectrum, delayed the generation of herbicide resistance, to crop safety, met pesticide
The security requirement of preparation.
Claims (7)
- A kind of 1. herbicidal composition, it is characterised in that said composition is made of tri- kinds of active ingredients of A, B and C, wherein activity into Point A is sulfone pyrrole grass azoles, and active ingredient B is flurtamone, and active ingredient C is diflufenican, the weight of the active components A, B and C Measuring ratio is：（3-48）:（12-184）:（3.3-52）.
- 2. herbicidal composition according to claim 1, it is characterised in that the weight ratio of active components A, B and C is： （4.5-36）:（17.5-138）:（5-39）.
- 3. herbicidal composition according to claim 2, it is characterised in that the weight ratio of active components A, B and C is：（6- 24）:（23-92）:（6.5-26）.
- 4. herbicidal composition according to claim 3, it is characterised in that the weight ratio of active components A, B and C is：（9- 18）:（34.5-69）:（10-19.5）.
- 5. herbicidal composition according to claim 4, it is characterised in that the weight ratio of active components A, B and C is： 12:46:13。
- 6. according to the herbicidal composition any one of claim 1-5, it is characterised in that active ingredient 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 times agriculturally allowed A kind of formulation.
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| CN113519525A (en) * | 2021-07-20 | 2021-10-22 | 东北师范大学 | Application of furanone compounds in prevention and treatment of cyanobacterial bloom |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106614631A (en) * | 2016-11-18 | 2017-05-10 | 河南省农业科学院植物保护研究所 | Herbicide composition containing diflufenican and pyroxasulfone |
| CN106689145A (en) * | 2016-11-18 | 2017-05-24 | 河北博嘉农业有限公司 | Weeding composition containing pyroxasulfone and amide herbicides |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106614631A (en) * | 2016-11-18 | 2017-05-10 | 河南省农业科学院植物保护研究所 | Herbicide composition containing diflufenican and pyroxasulfone |
| CN106689145A (en) * | 2016-11-18 | 2017-05-24 | 河北博嘉农业有限公司 | Weeding composition containing pyroxasulfone and amide herbicides |
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| CN113519525A (en) * | 2021-07-20 | 2021-10-22 | 东北师范大学 | Application of furanone compounds in prevention and treatment of cyanobacterial bloom |
| CN113519525B (en) * | 2021-07-20 | 2023-02-03 | 东北师范大学 | Application of furanone compounds in prevention and treatment of cyanobacterial bloom |
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