CN108184883A - A kind of herbicide composition for wheat field containing isoproturon - Google Patents
A kind of herbicide composition for wheat field containing isoproturon Download PDFInfo
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- CN108184883A CN108184883A CN201711187808.5A CN201711187808A CN108184883A CN 108184883 A CN108184883 A CN 108184883A CN 201711187808 A CN201711187808 A CN 201711187808A CN 108184883 A CN108184883 A CN 108184883A
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- Prior art keywords
- isoproturon
- halosulfuronmethyl
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
-
- 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
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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- Agronomy & Crop Science (AREA)
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Abstract
The invention belongs to technical field of pesticide, more particularly to a kind of using sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl as the herbicidal composition of active constituent, the weight ratio of active constituent sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl is (3 48) in the herbicidal composition:(21‑336):(1.25 20), percentage composition of the active constituent in herbicidal composition are 5 85%.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 reduce Pesticide use amount, alleviate the pollution to environment, 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, isoproturon and
Halosulfuronmethyl is used for the herbicidal composition of eliminating weed in wheat field for active constituent.
【Background technology】
Farmland weed is the harmful organism of a kind of serious threat crop growth, and weeds averagely can result in crop yield
34% loss, harm is far above pest and germ.Wheat is planted year after year as main cereal crops, large area, weeds
Harm is serious, is required to apply the progress weed control of a large amount of herbicide thus every year.
Cornfield herbicidal kind is more, can be divided into cauline leaf process herbicide and closed soil treatment weeding according to application method
Agent.Cauline leaf process herbicide refers to after weeds emerge, and is directly applied to the medicament that weeds cauline leaf kills weeds, application method
For：Herbicide is diluted in a certain amount of water, sprinkling processing is carried out to weeds seedling, passes through absorption of the weeds cauline leaf to drug
Weeds are eliminated with conduction.Herbicide when in use, is spread on upper soll layer or is grasped by mixed soil by closed soil treatment herbicide
Work is admixed herbicide in soil, it is established that a herbicide confining bed, to kill the weeds sprouted；This kind of herbicide can be miscellaneous
Root, tooth sheath or upper hypocotyl of grass etc. absorb and play a role, such as isoproturon, butachlor.At present, common weeding for wheat agent
For cauline leaf process herbicide, but this kind of herbicide is only effective to unearthed weeds, this just needs multiple dispenser, uses
Time is long, high labor cost.Year after year a large amount of with cauline leaf process herbicide use, and certain weeds have produced very strong resist
Property, such as Alopecurus, Wang grass etc., and this resistance can be increasingly stronger.Closed soil treatment herbicide is easy to use, into
This is relatively low.But in weeding for wheat agent, the use of closed soil treatment herbicide is relatively seldom, and one of reason is, certain
Type Seal treatment herbicide is in use, poisoning, such as butachlor, Acetochlor class herbicide easily occur when having ponding for field.
And most of closed soil treatment herbicide is after weeds emerge, and substantially without control effect, usage time is shorter.Therefore,
The main means that the novel herbicide for preventing and kill off wheat paddock before seedling weeds is current weeding are developed, are also to ensure that wheat good harvest high yield
It is crucial.
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, mechanism of action is approximate with Acetochlor, can be by weeds root
It is absorbed with young shoot, inhibits seeding previous vigor, but it also has novel mechanism of action, it is by interfering Long chain fatty acid
It synthesizes to inhibit weeds growth of seedling.The herbicide unit area dosage is low, is removed than Acetochlor and other chloro-acetyl amines
Careless agent kind is 8~10 times low；Herbicidal effect is good, and bioactivity is much larger than Acetochlor and isopropyl methoxalamine；Because sulfone pyrrole grass azoles water
Dissolubility is very low, so field has ponding to be not easy to that poisoning occurs, to crop safety, the weeding lasting period is long.It can effectively anti-grass family
Weeds and a variety of broad leaved weeds, such as lady's-grass, wild oat, Triticum tauschii, barnyard grass, amur foxtail, piemarker, but to part broad leaved weed
Preventive effect is poor.
Isoproturon (Isoproturon), chemical name：3- (4- isopropyl phenyls) -1,1- dimethyl ureas, structural formula are：
Isoproturon is substituted urea class selectivity before seedling, herbicide after seedling, is the inhibitor of photosynthesis with systemic activity.
Medicament is mainly absorbed through weeds root and cauline leaf, is transmitted to leaf upwards with moisture in conduit, is distributed in blade tip and leaf margin more, green
It plays a role in cytochrome, interferes photosynthetic progress, oxygen and carbon dioxide cannot be released under light illumination, organic matter generation stops
Only, susceptible weeds are dead due to starvation.Isoproturon can prevent and kill off annual gramineous weed and part annual broadleaf weed, such as
Lady's-grass, annual bluegrass, hard grass, amur foxtail etc. in actual use protrude annual bluegrass field efficacy, but to wild oat, mother-in-law
The Weed-control effects such as procumbent speedwell, field bindweed are poor.
Halosulfuronmethyl (Halosulfuron-methyl), other titles：Chloropyridine sulphur is grand, chlorine pyrrole chlorine sulphur is grand, pyrrole chlorine is yellow
It is grand, chemical name：The chloro- 5- of 3- (4,6- dimethoxy-pyridine -2- base amino carbonyl aminos sulfonyl) -1- methyl pyrazole -4- carboxylic acids
Methyl esters, structural formula are：
Halosulfuronmethyl category sulfonylurea herbicide is acetolactate synthestase (ALS) inhibitor, by the roots of weeds and
Leaf absorbs, the Bidirectional Conduction in plant, hinders the biosynthesis of branched-chain amino acid, inhibits cell division, so as to cause weeds
Normal growth destroyed and dead.Because of it, rapid metabolization is harmless object in crop body, therefore to crop safety, after before seedling seedling
It can apply.Halosulfuronmethyl can be used for preventing and kill off the broad leaved weeds such as wheat paddock lamb's-quarters, sowthistle, ox chickweed, wartwort, clearvers, but
It is invalid to grassy weed.
It is not only of high cost that any one above-mentioned herbicide is used alone, but also herbicide controlling spectrum is limited, it is difficult to reach disposable anti-
Except the effect of a variety of weeds.Therefore, any of the above single dose is usually used in mixed way by people with other herbicides respectively, such as：Specially
Sharp WO2009115420 discloses the composition of sulfone pyrrole grass azoles and isoproturon compounding, the composition prevent and kill off grassy weed effect compared with
Good, broad leaved weed can only be prevented and kill off partly.Patent CN201710104791.6 discloses isoproturon and flufenacet and the phonetic sulphur of chlorine pyrrole
Grand compounding has amur foxtail, clearvers special efficacy, but the composition is poor to part grassy weed preventive effect for cornfield herbicidal.
Not yet find the Herbicidal combinations that sulfone pyrrole grass azoles is compounded with isoproturon and halosulfuronmethyl.
For each single dose more than making up and complex preparation existing deficiency in actual use, the present inventor are reported
It furthers investigate, is had been surprisingly found that on the basis of the screening of a large amount of formula indoor and field control effectiveness test, by different role machine
The sulfone pyrrole grass azoles of reason is compounded with isoproturon and halosulfuronmethyl in certain ratio range, can both make up sulfone pyrrole grass azoles, isopropyl
The defects of grand and three kinds of herbicide herbicide controlling spectrums of halosulfuronmethyl are narrow in turn avoids generating this season crop poisoning and to succession crop
Generate the possibility of residual hazard.It solves herbicide to be applied alone in limitation present on herbicide controlling spectrum, preventive effect and safety, reach
Expand herbicide controlling spectrum, the purpose for improving preventive effect, improving safety.
【Invention content】
The purpose of the present invention is seeking a kind of novel wheat field herbicide composition, to make up wheatland Common Herbicides not
Foot provides a kind of available closed soil treatment herbicide conscientiously for wheatland.The 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, safety is good, synergistic effect is apparent.
Present invention employs following technical solutions：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 constituent B is isoproturon, and active constituent C is halosulfuronmethyl.
Specifically, the weight ratio of active components A, B and C is in the herbicidal composition：(3-48):(21-336):
(1.25-20) form, preferably：(4.5-36):(31.5-252):(1.9-15), further preferably：(6-24):(42-
168):(2.5-10), still more preferably for：(9-18):(63-126):(3.8-7.5), optimum weight ratio are：12:84:5.
The present invention also provides the preparation containing above-mentioned composition, the weight percentage of active ingredient is 5- in the preparation
85%.
According to different use needs or applying environment, herbicidal composition of the present invention, which can be prepared into, agriculturally to be permitted
Perhaps arbitrary dosage form, as preferred herbicidal composition of the present invention can be prepared into missible oil, suspending agent, dispersible oil-suspending agent,
The dosage forms such as wettable powder, water dispersible granules, more preferably wettable powder.
For missible oil, can used additives include：
Emulsifier is selected from Nongru-700 #, calcium dodecyl benzene sulfonate, agriculture breast 2201#, sorbitan monostearate, agriculture
It is one or more in newborn 1601# etc.；
Solvent is one or more in toluene, dimethylbenzene, methanol, methyl oleate, acetone etc..
For suspending agent, can used additives include：
Dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, TERSPERSE2425, alkyl phenol polyoxy
It is one or more in vinethene etc.；
Wetting agent is selected from alkylphenol-polyethenoxy base ether formaldehyde condensation products sulfate, alkylphenol-polyethenoxy base ether phosphoric acid
It is 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；
Antifreezing agent is one or more in ethylene glycol, propylene glycol, glycerine, urea etc.；
Preservative is one or more in sorbic acid, sodium benzoate etc.；
Antifoaming agent can be organic silicon antifoaming agent；
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 it is one or more；
Wetting agent is selected from APES formaldehyde condensation products sulfat, alkyl phenol polyoxyethylene ether phosphate, alkane
It is one or more in base sulfate, alkylsulfonate, naphthalene sulfonate etc.；
Emulsifier is selected from castor oil polyoxyethylene ether, calcium dodecyl benzene sulfonate, Nongru-700 #, agriculture breast 2201#, dehydration mountain
It is one or more in pears alcohol monostearate ester APEO etc.；
Thickener is one or more in bentonite, polyvinyl alcohol, xanthans, aluminium-magnesium silicate etc.；
Antifoaming agent can be organic silicon；
Cosolvent is one or more in toluene, dimethylbenzene, dimethyl sulfoxide (DMSO) etc.；
Decentralized medium is one or more 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
It is 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
It is one or more in salt etc.；
Carrier is one or more 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
It is 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
It is one or more in sulfonate etc.；
Disintegrant is selected from ammonium sulfate, urea, cornstarch and its derivative, low-substituted hydroxypropyl cellulose, polyethylene pyrrole
It is 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
It is one or more in enol etc.；
Carrier is selected from white carbon, kaolin, bentonite, diatomite, precipitated calcium carbonate, gypsum, attapulgite, urea or sugarcane
It is one or more in sugar etc..
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 wheat paddock management of weeds, compared with prior art, the present invention
Has following advantageous effect：
1st, Herbicidal combinations of the present invention are existed using sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl compounding, three kinds of active constituents
Compounding shows fabulous synergistic function in certain ratio range, and mixed composition significantly improves weeding compared with single dose
Effect so as to reduce dosage, while peasant's drug cost is reduced, reduces unfavorable shadow of the pesticide to ecological environment
It rings.
2nd, Herbicidal combinations of the present invention expand herbicide controlling spectrum so that a kind of medicament can prevent a variety of weeds simultaneously, provide
A kind of means of prevention extremely easily and effectively has good preventive effect to wheat paddock main weeds.
3rd, Herbicidal combinations of the present invention kill weeds using three kinds of different mechanisms of action, and medicament different role characteristic causes
Extremely strong mutual supplement with each other's advantages is generated between three kinds of active constituents, can effectively delay the generation and development of single dose resistance.
4th, Herbicidal combinations of the present invention, since the use content of various active ingredients reduces, make medicament to crop safety
Under the premise of drug effect is improved, pesticide residue is reduced, also avoids having an impact wheat and succession crop, keep away simultaneously
The possibility that pesticide generates people and animals residual hazard is exempted from.
【Specific embodiment】
In order to make the purpose , technical scheme and advantage of the present invention be clearer, present invention specific examples below
It illustrates, but is 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 made within the spirit and principles in the present invention, it is equivalent
It replaces and improves, should all be included in the protection scope of the present invention.
Example of formulations 1：35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder
Weigh 4% sulfone pyrrole grass azoles, 29% isoproturon, 2% halosulfuronmethyl, 2% lauryl sodium sulfate, 3% lignin
Sodium sulfonate, 3% white carbon, kaolin complement to 100%, and frequent regulation is for the method for wettable powder, i.e., preceding mixing, air-flow powder
Broken, rear mixing obtains 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder.
Example of formulations 2：48% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder
Weigh 8% sulfone pyrrole grass azoles, 28% isoproturon, 12% halosulfuronmethyl, 3% alkylnaphthalene sulfonate, 4% polycarboxylic acids
Salt, 3% white carbon, diatomite complement to 100%, frequent regulation for wettable powder method, i.e., preceding mixing, air-flow crushing,
After mix, obtain 48% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder.
Example of formulations 3：17% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl water dispersible granules
Weigh 9% sulfone pyrrole grass azoles, 5% isoproturon, 3% halosulfuronmethyl, 4% polycarboxylate, 2% naphthalene sulfonate, 1% sea
Mosanom, 0.5% hydroxyethyl cellulose, bentonite complement to 100%, frequent regulation for water dispersible granules method, i.e., it is preceding mixed
Conjunction, air-flow crushing, rear mixing plus water are mediated, are granulated, screening, obtain 17% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl moisture
Shot agent.
Example of formulations 4：60% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl water dispersible granules
Weigh 10% sulfone pyrrole grass azoles, 21% isoproturon, 29% halosulfuronmethyl, 5% polycarboxylate, 4% alkylsulfonate,
2% polyvinylpyrrolidone, 1% polyethylene glycol, attapulgite complement to 100%, frequent regulation for water dispersible granules method,
I.e. preceding mixing, air-flow crushing, rear mixing plus water are mediated, are granulated, screening, obtain the 60% phonetic sulphur of sulfone pyrrole grass azoles isoproturon chlorine pyrrole
Precititation dispersible granule.
Example of formulations 5：The 24.5% dispersible oil-suspending agent of sulfone pyrrole grass azoles isoproturon halosulfuronmethyl
Weigh 1.5% sulfone pyrrole grass azoles, 15% isoproturon, 8% halosulfuronmethyl, 8% Negel, 5% alkyl sulfide
Sour sodium, 3% agriculture breast 2201#, 0.5% xanthans, 0.05% organic silicon antifoaming agent, 2% dimethyl sulfoxide (DMSO), corn oil complement to
100%, after mixing, first high speed shear dispersion, then be ground to get the 24.5% sulfone pyrrole grass azoles isoproturon chlorine
The dispersible oil-suspending agent of pyrazosulfuron.
Example of formulations 6：The 30% dispersible oil-suspending agent of sulfone pyrrole grass azoles isoproturon halosulfuronmethyl
Weigh 15% sulfone pyrrole grass azoles, 5% isoproturon, 10% halosulfuronmethyl, 6% sodium lignin sulfonate, 4% alkylsurfuric acid
Sodium, 2% castor oil polyoxyethylene ether, 0.3% polyvinyl alcohol, 0.1% organic silicon antifoaming agent, 4% methanol, methyl oleate are supplied
To 100%, after mixing, first high speed shear is disperseed, then is ground to get the 30% sulfone pyrrole grass azoles isoproturon chlorine
The dispersible oil-suspending agent of pyrazosulfuron.
Example of formulations 7：32% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl missible oil
Weigh 2% sulfone pyrrole grass azoles, 15.7% isoproturon, 14.3% halosulfuronmethyl, 4% sodium alkyl sulfate, 2% dodecane
Base benzene sulfonic acid calcium, 10% agriculture breast 2201#, dimethylbenzene complement to 100%, first with part dimethylbenzene by sulfone pyrrole grass azoles, isoproturon, chlorine
Pyrazosulfuron dissolving is complete, then remaining auxiliary agent is sequentially added, and finally complements to 100% with dimethylbenzene, is mixed into homogeneous oil phase,
Obtain 32% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl missible oil.
Example of formulations 8：42% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl suspending agent
Weigh 16% sulfone pyrrole grass azoles, 16% isoproturon, 10% halosulfuronmethyl, 4% sodium polycarboxylate, 2% sodium alkyl sulfate,
2% Sodium Polyacrylate, 0.5% ethylene glycol, 0.5% sodium benzoate, 0.1% organic silicon defoamer, deionized water complement to
100%, after mixing, disperse through high speed shear, crushing is sanded, reconciles, it is phonetic to obtain 42% sulfone pyrrole grass azoles isoproturon chlorine pyrrole
The grand suspending agent of sulphur.
It is raw to survey embodiment 1：
Sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl 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, isoproturon and the phonetic sulphur of chlorine pyrrole
The grand synergistic effect research mutually compounded, 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 determination test rules-herbicide》7th part：The joint of mixture
The Colby methods that effect is instructed in measuring.
1st, reagent agent
93% sulfone pyrrole grass azoles active compound
98% isoproturon active compound
98% halosulfuronmethyl active compound
2nd, for trying weeds
Wild oat, annual bluegrass, ox chickweed
Culture for trying weeds with 11 × 12cm plastic tubs, is placed in shallow-water tank, will not made using potting cultivation
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 being made to moisten completely with basin alms bowl bottom infiltrating irrigation mode, pretreatment is quantitatively spread for examination weed seed
Soil surface is sowed at, according to seed size earthing 0.5cm-1.0cm, indoor temperature 28-32 DEG C/18-25 DEG C (d/n) is relatively wet
Degree 75% ± 15%.Using the bottom infiltrating irrigation mode moisturizing of basin alms bowl in incubation, soil is kept to be sufficiently humidified so as to.Sow standby for 24 hours
With.
3rd, experimental design
Experiment sets 41 processing altogether, wherein sulfone pyrrole grass azoles set 3,6,12,24,48g a.i./dosage of mu 5 handle, isopropyl
It is grand set 21,42,84,168, the 336g a.i./dosage of mu 5 processing, halosulfuronmethyl sets 1.25,2.5,5,10,20g a.i./
5 dosage processing of mu, sulfone pyrrole grass azoles+isoproturon+halosulfuronmethyl three use with and set up 3+21+1.25,3+42+2.5,3+84+ separately
5、3+168+10、3+336+20、6+21+2.5、6+42+5、6+84+10、6+168+20、6+336+1.25、12+21+5、12+42
+10、12+84+20、12+168+1.25、12+336+2.5、24+21+10、24+42+20、24+84+1.25、24+168+2.5、
24+336+5,48+21+20,48+42+1.25,48+84+2.5,48+168+5,48+336+10g a.i./dosage of mu 25 are matched
Than processing, an auxiliary agent control is separately set, 41 processing, are repeated 4 times altogether.
4th, test method
Sowing is placed on spray (ASS-4 type pesticide spraying systems, DG8003 nozzles, atomisation pressure in spray tower for 24 hours
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, isoproturon and halosulfuronmethyl mixture to wild oat
Sulfone pyrrole grass azoles, the isoproturon co-toxicity to wild oat mixed with halosulfuronmethyl：Sulfone pyrrole grass azoles is to wild oat
Preventive effect is good, and isoproturon is undesirable to the preventive effect of wild oat, halosulfuronmethyl to wild oat to no effect, with sulfone pyrrole grass azoles dosage
Increase, the preventive effect of wild oat is improved after using with.
The actual measurement survival rate and theoretical survival rate of 2 sulfone pyrrole grass azoles of table, isoproturon and halosulfuronmethyl mixture to annual bluegrass
Sulfone pyrrole grass azoles, the isoproturon co-toxicity to annual bluegrass mixed with halosulfuronmethyl：Isoproturon prevents annual bluegrass
Effect is fine, and sulfone pyrrole grass azoles and halosulfuronmethyl are poor to the preventive effect of annual bluegrass, with the increase of isoproturon dosage, to precocity after using with
The preventive effect of standing grain improves.
The actual measurement survival rate and theoretical survival rate of 3 sulfone pyrrole grass azoles of table, isoproturon and halosulfuronmethyl mixture to ox chickweed
Sulfone pyrrole grass azoles, the isoproturon co-toxicity to ox chickweed mixed with halosulfuronmethyl：Halosulfuronmethyl is to ox chickweed
Preventive effect it is good, sulfone pyrrole grass azoles and isoproturon, with the increase of halosulfuronmethyl dosage, are used with to ox chickweed effect difference or to no effect
The preventive effect of ox chickweed is improved afterwards.
The Toxicity Determination result shows sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl at weight ratio (3-24):(21-
168):Being used in the range of (1.25-10) has significant synergistic effect, expands herbicide controlling spectrum, has reached while prevented and kill off wheat paddock
The purpose of common weed.
It is raw to survey embodiment 2：
Sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl compounding are to the safety testing of wheat
For the safety for studying sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl mutually compound, inventor has done following examination
It tests, tests 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% isoproturon active compound
98% halosulfuronmethyl active compound
2nd, for studying object
Wheat
Culture for studying object with 11 × 12cm plastic tubs, is placed in shallow-water tank, will not made using greenhouse pot culture method
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 being made to moisten 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%.Using the bottom infiltrating irrigation mode moisturizing of basin alms bowl in incubation, soil is kept to be sufficiently humidified so as to.It is spare after sowing for 24 hours.
3rd, for trying weeds
Wild oat, Triticum tauschii, annual bluegrass, lady's-grass, ox chickweed, clearvers
Culture for trying weeds with 11 × 12cm plastic tubs, is placed in shallow-water tank, will not made using greenhouse pot culture method
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 being made to moisten completely with basin alms bowl bottom infiltrating irrigation mode, pretreatment is quantitatively spread for examination weed seed
Soil surface is sowed at, according to seed size earthing 0.5cm-1.0cm, indoor temperature 28-32 DEG C/18-25 DEG C (d/n) is relatively wet
Degree 75% ± 15%.Using the bottom infiltrating irrigation mode moisturizing of basin alms bowl in incubation, soil is kept to be sufficiently humidified so as to.Sow standby for 24 hours
With.
4th, experimental design
Experiment sets 41 processing altogether, wherein sulfone pyrrole grass azoles set 1,4,12,36,108g a.i./dosage of mu 5 handle, isopropyl
It is grand set 9,28,84,252, the 756g a.i./dosage of mu 5 processing, halosulfuronmethyl sets 0.7,2,6,18,54g a.i./mu 5
Dosage processing, sulfone pyrrole grass azoles+isoproturon+halosulfuronmethyl three use with and set up 3+21+1.25,3+42+2.5,3+84+5,3+ separately
168+10、3+336+20、6+21+2.5、6+42+5、6+84+10、6+168+20、6+336+1.25、12+21+5、12+42+10、
12+84+20、12+168+1.25、12+336+2.5、24+21+10、24+42+20、24+84+1.25、24+168+2.5、24+
At 336+5,48+21+20,48+42+1.25,48+84+2.5,48+168+5,48+336+10g a.i./dosage ratio of mu 25
Reason separately sets an auxiliary agent control, and 41 processing, are repeated 4 times altogether.
5th, test method
After sowing for 24 hours, it is placed in spray (ASS-4 type pesticide spraying systems, DG8003 nozzles, atomisation pressure in spray tower
2.75MPa, 30Kg/ mus of spouting liquid), it treats that natural air drying is placed in greenhouse and cultivates 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, it records symptom of chemical damage, grade in detail if having, each processing wheat fresh weight is measured within 30 days after medicine, fresh weight is calculated and inhibits
Rate, with safety of the clear and definite test medicine to wheat.
4 poisoning evaluation index of table
| Poisoning is classified | Poisoning degree (%) | As a result it describes |
| 0 | 0 | Safety, no poisoning |
| 1 | 1-10 | Without apparent 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：
Respectively preventive effect of the processing to weeds and the poisoning classification to wheat of table 5
It can be seen from Table 5 that sulfone pyrrole grass azoles isoproturon halosulfuronmethyl mixture is compared with single dose, in weight ratio (3-
48):(21-336):In the range of (1.25-20), preventive effect to weeds of wheat and single dose is above to the safety of wheat,
To wheat safety.
Make in conclusion sulfone pyrrole grass azoles has compounded significant synergy in a certain range with isoproturon and halosulfuronmethyl
With to crop safety, complex preparation is not only that wheat paddock provides a kind of safe, practical herbicide, and greatly reduce
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) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder be reagent agent, (10)-(12)
40% sulfone pyrrole grass azole suspending agent, 25% isoproturon wettable powder, 75% halosulfuronmethyl water dispersible granules are comparison medicament.Often
Mu is watered 30 kilograms, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have wild oat, successively
Wheat, annual bluegrass, lady's-grass, ox chickweed, clearvers etc..
2nd, pilot project and method
(1) safety：After dispenser, the growth and development situation of wheat, safety 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 type and strain number respectively, calculates weeds strain preventive effect.
(3) result of the test
Safety：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
Symptom of chemical damage are waited, show that 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder of reagent agent (1)-(9) is right
Wheat safety.
Herbicidal effect is shown in Table 6：
6 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder of table is to the preventive effect of weeds of wheat
Note：(1) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder (3:336:1.25)
(2) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (4.5:252:1.9)
(3) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (6:168:2.5)
(4) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (9:126:3.8)
(5) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (12:84:5)
(6) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (18:63:7.5)
(7) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (24:42:10)
(8) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (36:31.5:15)
(9) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (48:21:20)
(10) 40% sulfone pyrrole grass azole suspending agents
(11) 25% isoproturon wettable powders
(12) 75% halosulfuronmethyl water dispersible granules
(13) blank control
As shown in Table 6,35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder of different ratio is to common
Weeds strain preventive effect between 88.62%-98.11%, be superior to 40% sulfone pyrrole grass azole suspending agent of comparison medicament, 25% isoproturon can
Wet powder, 75% halosulfuronmethyl water dispersible granules (weeds strain preventive effect is respectively 65.63%, 65.39% and 41.45%).
Wherein sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl weight ratio are (3-48):(21-336):It is normal to wheat paddock when (1.25-20)
See that weeds have apparent preventive effect, weeds strain preventive effect is all more than 88%；Sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl weight ratio are
(4-36):(31.5-252):Preferable to wheat paddock common weed preventive effect when (1.9-15), weeds strain preventive effect is all more than 91%；
And sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl weight ratio are 12:84:Preventive effect is more up to 98.11% when 5.Thus illustrate, sulfone
Pyrrole grass azoles, isoproturon and halosulfuronmethyl are at weight ratio (3-48):(21-336):It is compounded in the range of (1.25-20), to wheat paddock
Common weeds have preventive effect, and this herbicidal composition is to wheat safety.
Eliminating weed in wheat field field control effectiveness test II：
1st, test process
(1) 20% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder (12:84:5) 250g/ mus
(2) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (12:84:5) 143g/ mus
(3) 70% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (12:84:5) 71.4g/ 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 isoproturon halosulfuronmethyl wettable powder is reagent agent, is watered 30 kilograms per acre,
Using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have wild oat, Triticum tauschii, annual bluegrass, lady's-grass,
Ox chickweed, clearvers 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 type and strain number respectively, calculates weeds strain preventive effect.
3rd, result of the test：Herbicidal effect is shown in Table 7
30 days sulfone pyrrole grass azoles isoproturon halosulfuronmethyls are to the preventive effect of various weeds after 7 medicine of table
Note：(1) 20% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder (12:84:5)
(2) 35% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (12:84:5)
(3) 70% sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powders (12:84:5)
(4) blank control
As shown in Table 7, when the weight ratio of sulfone pyrrole grass azoles, isoproturon and halosulfuronmethyl is 12:84:When 5, different content
Sulfone pyrrole grass azoles isoproturon halosulfuronmethyl wettable powder more than 98%, shows sulfone pyrrole grass to common weed strain preventive effect
When azoles, isoproturon and halosulfuronmethyl weight ratio are optimal proportion, the herbicidal composition of different activities component content is to wheat
Field weed has 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)
1. a kind of herbicidal composition, which is characterized in that the composition is made of tri- kinds of active constituents of A, B and C, wherein activity into
Point A is sulfone pyrrole grass azoles, and active constituent B is isoproturon, and active constituent C is halosulfuronmethyl, the weight of the active components A, B and C
Measuring ratio is：（3-48）:（21-336）:（1.25-20）.
2. herbicidal composition according to claim 1, which is characterized in that the weight ratio of active components A, B and C is：
（4.5-36）:（31.5-252）:（1.9-15）.
3. herbicidal composition according to claim 2, which is characterized in that the weight ratio of active components A, B and C is：（6-
24）:（42-168）:（2.5-10）.
4. herbicidal composition according to claim 3, which is characterized in that the weight ratio of active components A, B and C is：（9-
18）:（63-126）:（3.8-7.5）.
5. herbicidal composition according to claim 4, which is characterized in that the weight ratio of active components A, B and C is：
12:84:5。
6. herbicidal composition according to any one of claims 1-5, which is characterized in that active constituent is in herbicide group
It is 5-85% to close the weight percentage in object.
7. herbicidal composition according to claim 6, which is characterized in that the composition can be times agriculturally allowed
A kind of dosage form.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367148A (en) * | 2021-04-22 | 2021-09-10 | 江苏瑞邦农化股份有限公司 | Compound weeding composition containing monosulfuron ester and application thereof |
| CN116158442A (en) * | 2022-12-22 | 2023-05-26 | 安徽众邦生物工程有限公司 | Composition containing topiramate and isoproturon |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065692A (en) * | 2008-03-10 | 2011-05-18 | 巴斯夫欧洲公司 | Herbicidal compositions comprising pyroxasulfone |
| CN104054734A (en) * | 2014-07-09 | 2014-09-24 | 江苏省苏科农化有限责任公司 | Herbicide for rice field |
| CN106857608A (en) * | 2017-02-24 | 2017-06-20 | 江苏省农用激素工程技术研究中心有限公司 | Composition pesticide and its application containing isoproturon, flufenacet and halosulfuronmethyl |
-
2017
- 2017-11-24 CN CN201711187808.5A patent/CN108184883A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065692A (en) * | 2008-03-10 | 2011-05-18 | 巴斯夫欧洲公司 | Herbicidal compositions comprising pyroxasulfone |
| CN104054734A (en) * | 2014-07-09 | 2014-09-24 | 江苏省苏科农化有限责任公司 | Herbicide for rice field |
| CN106857608A (en) * | 2017-02-24 | 2017-06-20 | 江苏省农用激素工程技术研究中心有限公司 | Composition pesticide and its application containing isoproturon, flufenacet and halosulfuronmethyl |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367148A (en) * | 2021-04-22 | 2021-09-10 | 江苏瑞邦农化股份有限公司 | Compound weeding composition containing monosulfuron ester and application thereof |
| CN116158442A (en) * | 2022-12-22 | 2023-05-26 | 安徽众邦生物工程有限公司 | Composition containing topiramate and isoproturon |
| CN116158442B (en) * | 2022-12-22 | 2024-03-22 | 安徽众邦生物工程有限公司 | Composition containing topiramate and isoproturon |
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