CN106973909A - A kind of ternary built rice weeding composition - Google Patents
A kind of ternary built rice weeding composition Download PDFInfo
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- CN106973909A CN106973909A CN201710239585.6A CN201710239585A CN106973909A CN 106973909 A CN106973909 A CN 106973909A CN 201710239585 A CN201710239585 A CN 201710239585A CN 106973909 A CN106973909 A CN 106973909A
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- pretilachlor
- rice
- pyriftalid
- sodium
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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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
-
- 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)
- 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 present invention relates to a kind of rice terrace complex herbicidal composition, wherein including following three kinds of active ingredient：Composition（A）：Pyriftalid；Composition（B）：Pretilachlor, composition（C）One kind in bispyribac-sodium, pyribenzoxim, metamifops, halosulfuronmethyl；Wherein described composition (A), (B),（C）Mass ratio be 1 30：1‑55：1 40, three's sum is 3 80% in the percentage composition of Herbicidal combinations, and can be prepared into wettable powder, water dispersible granules, missible oil, granule.The characteristics of rice weeding composition of the present invention has safety, quick-acting and lasting effect and good, broad weed-killing spectrum, the dispenser phase is wide.
Description
Technical field
The invention belongs to technical field of pesticide, especially herbicide field, and in particular to a kind of weeding group of ternary built
Compound, the Herbicidal combinations are used for agent for removing grass in paddy field.
Background technology
Weeds in paddy field is always to influence a key factor of yield.In these weeds with barnyard grass occurrence injury area most
Greatly, take second place in addition with the hazard areas such as difformed galingale herb, Monochoria vaginalis, moleplant seed, bog pondweed, Monochoria korsakowii and the order of severity, various regions
Common also has water silk floss, duckweed, firefly Lin, carp intestines, Herba Cyperi Glomerati, water amaranth, water pepper etc..Current chemical method weeding is control weeds
Main Means.But the herbicide for paddy field of in the market mostly has the narrow defect of herbicide controlling spectrum, a kind of weeding is used alone
Agent can not completely effectively control the generation of paddy field weed, and herbicide consumption is excessive or dispenser is uneven easily causes pair
This season crop or the residual hazard of succession crop, therefore need efficient, low toxicity, economy, the agent for removing grass in paddy field pharmaceutical preparations of safety badly.
Pyriftalid is the pyrimidinylthiobenzoate herbicides developed by Syngenta Co., Ltd of Switzerland, and it mainly suppresses acetolactic acid
Synzyme (ALS) is synthesized, and medicament is mainly absorbed by weeds root and stem foot.Pyriftalid is early stage broad-spectrum weed-killing after rice seedlings
Agent, aims at transplanting and direct seading rice exploitation.In rice terrace, pyriftalid is absorbed by paddy rice root tip, and a seldom part can conduct
Onto blade, the grass cutting blade that small part medicament can be sprouted absorbs, wealthy for preventing and treating rice terrace grassy weed and part
Leaf weeds.Barnyard grass, moleplant seed prevention effect especially to rice terrace preferably, to false loosestrife, cyperus iria, needle spikesedge herb, mexicana,
The broad leaved weeds such as Monochoria vaginalis and nutgrass flatsedge have certain preventive effect.Pyriftalid is mainly potential difference selection weeding, it is adaptable to rice transplanting
Used after field or seedling throwing field rice striking root.
Pretilachlor is the rice terrace herbicides special with high selectivity, to rice safety, broad weed-killing spectrum.Weed seed exists
Medicament is absorbed in germination process, root absorption is poor, soil treatment before bud can only be made.Pretilachlor suitable for paddy rice prevent and kill off barnyard grass,
Bald barnyard, moleplant seed, eleusine indica, needle spikesedge herb, alisma canaliculatum, difformed galingale herb, cyperus iria, false loosestrife, Monochoria vaginalis etc. are annual
Grass family and broad leaved weed.
Bispyribac-sodium, also known as salicylic acid Sulfadiazine Compound, are the pyrimidine Type salicylic acid wide spectrums developed by Japanese combinatorial chemistry company
Herbicide, acetolactic acid enzyme inhibitor is worked by preventing the biosynthesis of branched-chain amino acid, applicable crops paddy rice, main
It is used for the postemergence weed control of direct seading rice, it is effective to 1-7 leaf phase barnyard grasses, grassy weed is prevented and kill off, the 1-7 leaf phases can be especially prevented and kill off
Barnyard grass, simultaneous most of broad leaved weeds, some sedge weeds and the propanil controlled produces resistance barnyard grass.
Pyribenzoxim belongs to oxime lipoid substance, wide spectrum selective post-emergence herbicide.Mechanism of action and sulfonylurea and miaow
Azoles type herbicides are similar, belong to inhibitor of acetolactate synthetase.Have selectivity super paddy rice, common wheat, Korea lawn grass
Activity of weeding before activity of weeding after shoot buds, no bud, for preventing and kill off the various grassy weeds such as barnyard grass, big fringe amur foxtail, polygonum flaccidum
It is distinguished with broad leaved weed effect, to paddy rice, common wheat safety.Chemical weeding speed is slower, suppresses weed growth after dispenser, but
Must be withered after 2 weeks.Medicament medication appropriateness is wider, effective to the barnyard grass 1.5-6.5 leaf phases.
Metamifop is the aryloxyphenoxypropanoates class herbicide developed by Chemical Engineering Technology research institute of South Korea, can be admirably
Most of annual gramineous weeds are prevented and kill off, and unlike most of such herbicides, it can effectively be prevented and kill off to rice safety
Rice terrace annual gramineous weed, such as barnyard grass, moleplant seed, lady's-grass and eleusine indica, are mainly used in transplanting and direct sowing rice field weeding.
Metamifop low toxicity, it is environmentally safe, there is extensive miscibilty.
Halosulfuronmethyl belongs to a kind of sulfonylurea herbicide, is a kind of inhibitor of acetolactate synthestase, leads to
The root, stem and leaf for crossing weeds absorb, and are conducted in plant, weeds are to stop growing, then withered.Its broad weed-killing spectrum, is used
Dosage is low, and activity is high, and selectivity is strong, is mainly used in preventing and kill off broad leaved weed and sedge weed, such as piemarker, Siberian cocklebur, datura, globefish
Grass, Amaranthus retroflexus, purslane, black nightshade, the rhizome of nutgrass flatsedge, lead a cow, Cassia, knotweed etc., it is but invalid to grassy weed, for wheat, corn,
The various crops such as paddy rice and non-crop, but it is more harsh to application technique requirement, and improper use easily causes poisoning, Er Qieqi
Price is higher.
The defect of the Herbicidal combinations various degrees of current existing compounding, in order to make up weeding single dose and compounding
A kind of deficiency of preparation in use, new compositions of the invention achieve unexpected effect on preventing and treating paddy field weed
Really, a dispenser can prevent and kill off various grass family, broad-leaved section and the sedge weed in rice terrace, reduce cost accounting, greatly
Ground improves the security to paddy rice.
The content of the invention
In consideration of it, it is an object of the invention to provide a kind of herbicidal effect is good, broad weed-killing spectrum, safe, cost accounting
Herbicidal composition for rice field that is low, widening the dispenser phase, the Herbicidal combinations can be prepared into wettable powder, water dispersible granules,
Missible oil, granule, can be used as rice terrace postemergence weed control.To realize the goal of the invention of the present invention, the present invention provides following skill
Art scheme：A kind of Herbicidal composition for rice field, it is characterised in that the Herbicidal combinations include active ingredient (A) and active ingredient
(B) and active ingredient (C), effective constituents A is pyriftalid, and active ingredient B pretilachlors, active ingredient C is selected from C1 bispyribac-sodiums, C2
One kind in pyribenzoxim, C3 metamifops, C4 halosulfuronmethyls, the mass ratio of these three active ingredients is 1-30:1-
55:1-40, the percentage composition that three's sum accounts for Herbicidal combinations is 3-80%.
In the ternary built preparation of the present invention, in addition to active ingredient, being configured to of allowing on agricultural chemicals can be also added any
A kind of formulation.It is preferred that being processed into wettable powder, water dispersible granules, missible oil, granule.Described insecticides adjuvant includes scattered
Agent, wetting agent, disintegrant, binder, solvent, emulsifying agent, adsorbent etc., these auxiliary agents use conventional known compound.
The composition and its content of the Herbicidal combinations of table 1
Compared to the prior art the Herbicidal combinations have the advantages that to protrude very much：First, high to Security of rice；Its
Two, herbicide spectrum width kills a variety of weeds including grass family, broad-leaved section, Cyperaceae comprehensively；Third, to paddy field weed
Preventive effect is high；Fourth, spraying time is wide；Fifth, having quick-acting and lasting effect concurrently, times for spraying, the reduction amount of labour and production are reduced
Cost, reduces the risk that poisoning occurs, and delaying drug resistance is produced.
Embodiment
The specific embodiment of wettable powder
S1：A：2%, B：1%, C1：5%, naphthalenesulfonic acid-formaldehyde condensate:0.01%, lauryl sodium sulfate:
0.01%, diatomite:91.98%.
S2：A:12%, B:10%, C1：20%, calcium lignosulfonate:2%, polyoxyethylene alkyl phenyl ether sodium sulphate:
1.5%, talcum powder:54.5%.
S3:A:25%, B:20%, C1：35%, wooden disulfonate acid:3%, lauryl sodium sulfate:2%, corn forms sediment
Powder：15%.
S4：A:2%, B:1%, C2：2%, wooden disulfonate acid:0.01%, polyoxyethylene alkyl phenyl ether sodium sulphate:
0.01%, diatomite:94.98%.
S5：A:15%, B:10%, C2：15%, calcium lignosulfonate:2%, lauryl sodium sulfate:1.5%, talcum
Powder:56.5%.
S6：A:25%, B:20%, C2：25%, naphthalenesulfonic acid-formaldehyde condensate:3%, polyoxyethylene alkyl phenyl ether sulphur
Sour sodium:2%, cornstarch:25%.
S7：A:3%, B:2%, C3:1%, naphthalenesulfonic acid-formaldehyde condensate:0.01%, lauryl sodium sulfate:
0.01%, diatomite:93.98%.
S8：A:18%, B:12%, C3:10%, calcium lignosulfonate:1%, polyoxyethylene alkyl phenyl ether sodium sulphate:
1%, talcum powder:58%
S9：A:30%, B:25%, C3:20%, wooden disulfonate acid:3%, lauryl sodium sulfate:2%, corn forms sediment
Powder:20%.
S10：A:3%, B:1%, C4:5%, wooden disulfonate acid:0.01%, polyoxyethylene alkyl phenyl ether sodium sulphate:
0.01%, diatomite:90.98%.
S11：A:10%, B:8%, C4:12%, calcium lignosulfonate:1%, lauryl sodium sulfate:1%, talcum powder:
68%.
S12：A:20%, B:15%, C4:30%, naphthalenesulfonic acid-formaldehyde condensate:2%, polyoxyethylene alkyl phenyl ether sulphur
Sour sodium:1.5%, cornstarch:31.5%.The specific embodiment of water dispersible granules
S1：A:1%, B:20%, C1:30%, naphthalenesulfonic acid-formaldehyde condensate:1%, lauryl sodium sulfate:1%, sulphur
Sour ammonium:2%, glucose:1%, diatomite:44%.
S2：A:5%, B:25%, C1:35%, calcium lignosulfonate:1.5%, Negel:1.5%, sodium sulphate:
3%, glucose:2%, talcum powder:27%.
S3：A:10%, B:30%, C1:40%, wooden disulfonate acid:2%, dodecyl sodium succinate:2%, chlorination
Sodium:4%, polyethylene glycol:3%, cornstarch:9%.
S4：A:1%, B:35%, C2:10%, wooden disulfonate acid:1%, Negel:1%, ammonium sulfate:2%,
Glucose:1%, diatomite：49.
S5：A:5%, B:45%, C2:12%, calcium lignosulfonate:1.8%, lauryl sodium sulfate:1.2%, sulfuric acid
Sodium:3%, starch:2%, talcum powder：30%.
S6：A:10%, B:55%, C2:15%, sodium lignin sulfonate:2%, dodecyl sodium succinate:2%, urea:
4%, polyethylene glycol:3%, diatomite：9%.
S7：A:10%, B:35%, C3:1%, naphthalenesulfonic acid-formaldehyde condensate:1%, lauryl sodium sulfate:1, sulfuric acid
Ammonium:2%, glucose:1%, diatomite：49%.
S8：A:15%, B:42%, C3:5%, calcium lignosulfonate:1.5%, Negel:1.5, sodium sulphate:
3%, methylcellulose:2%, talcum powder：30%.
S9：A:20%, B:50%, C3:10%, wooden disulfonate acid:2%, dodecyl sodium succinate:2%, chlorination
Sodium:4%, polyethylene glycol:3%, cornstarch：9%.
S10：A:1%, B:30%, C4:15%, wooden disulfonate acid:1%, Negel:1%, ammonium sulfate:
2%, glucose:1%, diatomite：49%.
S11：A:3%, B:35%, C4:20%, calcium lignosulfonate:1.3%, lauryl sodium sulfate:1.7%, sulfuric acid
Sodium:3%, glucose:2%, talcum powder：34%.
S12：A:5%, B:40%, C4:25%, naphthalenesulfonic acid-formaldehyde condensate:2%, sodium alkyl sulfate:2%, chlorination
Sodium:4%, polyethylene glycol:3%, cornstarch：19%.
The specific embodiment of missible oil
S1：A：5%, B：20%, C1：1%, dodecyl phenol polyethenoxy ether:10%, heavy aromatic solvent oil:64%.
S2：A：8%, B：25%, C1：6%, Polyethylene Octylphenol Ether:15%, heavy aromatic solvent oil:46%.
S3：A：10%, B：30%, C1：10%, triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer:20%,
Heavy aromatic solvent oil:30%.
S4：A：5%, B：20%, C2：1%, dodecyl phenol polyethenoxy ether:10%, heavy aromatic solvent oil:64%.
S5：A：8%, B：25%, C2：6%, Polyethylene Octylphenol Ether:15%, heavy aromatic solvent oil:46%.
S6：A：10%, B：30%, C2：10%, triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer:20%,
Heavy aromatic solvent oil:30%.
S7：A：5%, B：20%, C3：1%, AEO:10%, heavy aromatic solvent oil:64%.
S8：A：8%, B：25%, C3：6%, dodecyl phenol polyethenoxy ether:15%, heavy aromatic solvent oil:46%.
S9：A：10%, B：30%, C3：10%, Polyethylene Octylphenol Ether:20%, heavy aromatic solvent oil:30%.
S10：A：1%, B：20%, C4：5%, triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer:10%,
Heavy aromatic solvent oil:64%.
S11：A：3%, B：25%, C4：10%, AEO:15%, heavy aromatic solvent oil:47%.
S12：A：5%, B：30%, C4：15%, Polyethylene Octylphenol Ether:20%, heavy aromatic solvent oil:30%.
The specific embodiment of granule
S1:A：1%, B：1%, C1：1%, polyvinyl alcohol:5%, atlapulgite:2%, clay:90%.
S2:A：3%, B：3%, C1：3%, polyacrylamide:6%, precipitated calcium carbonate:3%, bentonite:82%.
S3:A：6%, B：6%, C1：6%, soluble starch:8%, white carbon:5%, diatomite:69%.
S4:A：1%, B：1%, C2：1%, hydroxymethyl starch:5%, white carbon:2%, clay:90%.
S5:A：3%, B：3%, C2：3%, polyvinyl alcohol:6%, precipitated calcium carbonate:3%, clay:82%.
S6:A：6%, B：6%, C2：6%, polyacrylamide:8%, atlapulgite:5%, bentonite:69%.
S7:A：1%, B：1%, C3：1%, soluble starch:5%, atlapulgite:2%, diatomite:90%.
S8:A：3%, B：3%, C3：3%, hydroxymethyl starch:6%, precipitated calcium carbonate:3%, clay:82%.
S9:A：6%, B：6%, C3：6%, polyvinyl alcohol:8%, white carbon:5%, clay:69%.
S10:A：1%, B：1%, C4：1%, polyacrylamide:5%, white carbon:2%, bentonite:90%.
S11:A：3%, B：3%, C4：3%, soluble starch:6%, precipitated calcium carbonate:3%, diatomite:82%.
S12:A：6%, B：6%, C4：6%, hydroxymethyl starch:8%, atlapulgite:5%, clay:69%.
The 250g/L pyriftalid suspending agents of comparative example 1
The pretilachlor missible oil of comparative example 2 30%
The bispyribac-sodium wettable powder of comparative example 3 20%
The pyribenzoxim missible oil of comparative example 4 5%
The metamifop missible oil of comparative example 5 10%
The halosulfuronmethyl water dispersible granules of comparative example 6 75%
Comparative example 7 10% pyriftalid bispyribac-sodium missible oil (pyriftalid 1%, bispyribac-sodium 9%, DBSA
Calcium 5%, APES 3%, 100%) solvent naphtha is supplied
Comparative example 8 80% pyriftalid halosulfuronmethyl water dispersible granules (pyriftalid 72%, halosulfuronmethyl
8%, lauryl sodium sulfate 6%, metal carboxylate 7%, 100%) kaolin supplied
Comparative example 9 35% pretilachlor bispyribac-sodium wettable powder (pretilachlor 20%, bispyribac-sodium 15%, NNO5%, sulphur
Sour ammonium 3%, polyvinyl alcohol 2%, kaolin is supplied)
1) toxicity determination test
Test objective：Under the conditions of greenhouse pot culture, pyriftalid, pretilachlor, bispyribac-sodium and different blended with combination to barnyard grass,
The herbicidal effect of Monochoria vaginalis；Pyriftalid, pretilachlor, pyribenzoxim and different blended are with combination to barnyard grass, the weeding of Monochoria vaginalis
Effect；Pyriftalid, pretilachlor, metamifop and different blended are with combination to moleplant seed, the herbicidal effect of false loosestrife；Cyclic ester grass
Ether, pretilachlor, halosulfuronmethyl and different blended are with combination to barnyard grass, the herbicidal effect of false loosestrife；And its joint is have rated respectively
Effect.
For studying thing：Paddy rice.
Control object：Grassy weed：Barnyard grass, moleplant seed；Broad leaved weed：Monochoria vaginalis, false loosestrife.
Material to be tested：95% pyriftalid active compound, 95% pretilachlor active compound, 95% bispyribac-sodium active compound, 95% pyrimidine oxime grass
Ether active compound, 96% metamifop active compound, 97% halosulfuronmethyl active compound.
Test method：Pyriftalid, pretilachlor, bispyribac-sodium are made a living survey object with barnyard grass, Monochoria vaginalis；Pyriftalid, the third grass
Amine, pyribenzoxim are made a living survey object with barnyard grass, Monochoria vaginalis；Pyriftalid, pretilachlor, metamifops are with moleplant seed, cloves
Knotweed is made a living survey object；Pyriftalid, pretilachlor, halosulfuronmethyl are made a living survey object with barnyard grass, false loosestrife.Removed from not applying
Careless agent, pH6.8 soil, soil is air-dried after sieving, and in the high 6cm of loading, diameter 9cm polypots, 20 seeds are sowed per basin,
It is placed in greenhouse and cultivates after fine earth thick lid 0.5-1cm, treats that weeds length to the 2-4 leaf phases use potted plant cauline leaf process method (NY/T
1155.4-2006), per alms bowl spraying liquid 1mL, often processing is repeated 4 times, and sets the processing without medicament as control.Material is tried after processing
Range estimation target damage symptoms and growth inhibition feelings after culture, the growing state of routine observation target weeds, 20d are placed in greenhouse
Condition, and claim aerial part fresh weight or strain fresh weight, toxicity action of the medicament to target weeds is evaluated with target fresh weight inhibition.
Specific method is with reference to the part of NY/T1155.4-2006 farm-chemical indoor determination test rules herbicide the 4th：Activity
Determination test cauline leaf spray-on process is tested, and often handles 4 repetitions, often repeatedly 20 plants, if being blank control without chemicals treatment.
Ternary built synergy evaluation method is with reference to NY/T1155.7-2006 farm-chemical indoor determination test rules herbicide the 7th
Colby methods in the synergy measure of part mixture.
If E is that pyriftalid, pretilachlor and bispyribac-sodium or pyribenzoxim Huo metamifops or halosulfuronmethyl are mixed
The weeds weight surveyed afterwards is the percentage of control weeds weight.The theoretical preventive effect of mixture is calculated according to below equation：E0=X ×
Y×Z/1002.In formula, X is that pyriftalid weeds weight under certain dosage is the percentage for compareing weeds weight；Y is pretilachlor
Weeds weight is the percentage of control weeds weight under certain dosage；Z be bispyribac-sodium or pyribenzoxim Huo metamifops or
Halosulfuronmethyl weeds weight under certain dosage is the percentage of control weeds weight.E-E0＞ 10% is antagonism；E-E0
＜ -10% is synergistic effect；E-E0Value is summation action between ± 10%.
The preventive effect of table 2-1 pyriftalids, pretilachlor, bispyribac-sodium and its mixture to barnyard grass
Table 2-1 shows that specifically proportioning is 50+30+1.5,50+30+2,50+30+ for pyriftalid, pretilachlor, bispyribac-sodium
2.5,50+33+1.5,50+33+2,50+33+2.5,50+36+1.5,50+36+2,50+36+2.5,65+30+1.5,65+30+
2,65+30+2.5,65+33+1.5,65+33+2,65+33+2.5,65+36+1.5,65+36+2,65+36+2.5,80+30+
1.5,80+30+2,80+30+2.5,80+33+1.5,80+33+2,80+33+2.5,80+36+1.5,80+36+2,80+36+
2.5, the E-E of ternary recompounded composite0Both less than -10%, synergistic effect is shown as to barnyard grass；And when its ternary built is 80+
Synergistic effect during 30+1.5 is the most notable, its E-E0It is worth for -13.20%.
The preventive effect of table 2-2 pyriftalids, pretilachlor, bispyribac-sodium and its mixture to Monochoria vaginalis
Table 2-2 shows that specifically proportioning is 60+30+1.5 for pyriftalid, pretilachlor, bispyribac-sodium, to Monochoria vaginalis synergistic effect
The most substantially, its E-E0It is worth for -20.81%.
The preventive effect of table 3-1 pyriftalids, pretilachlor, pyribenzoxim and its mixture to barnyard grass
Table 3-1 shows that specifically proportioning is 50+30+2,50+30+2.4,50+30 for pyriftalid, pretilachlor, pyribenzoxim
+ 2.8,50+33+2,50+33+2.4,50+33+2.8,50+36+2,50+36+2.4,50+36+2.8,65+30+2,65+30+
2.4,65+30+2.8,65+33+2,65+33+2.4,65+33+2.8,65+36+2,65+36+2.4,65+36+2.8,80+30+
2,80+30+2.4,80+30+2.8,80+33+2,80+33+2.4,80+33+2.8,80+36+2,80+36+2.4,80+36+
2.8, the E-E of ternary recompounded composite0Both less than -10%, synergistic effect is shown as to barnyard grass；And when its ternary built is 65+
Synergistic effect during 33+2.8 is the most notable, its E-E0It is worth for -13.67%.
The preventive effect of table 3-2 pyriftalids, pretilachlor, pyribenzoxim and its mixture to Monochoria vaginalis
Table 3-2 shows that specifically proportioning is 65+30+2 for pyriftalid, pretilachlor, pyribenzoxim, and Monochoria vaginalis synergy is made
With the most obvious, its E-E0It is worth for -26.69%.
The preventive effect of table 4-1 pyriftalids, pretilachlor, metamifops and its mixture to moleplant seed
Table 4-1 shows that specifically proportioning is 50+30+7,50+30+7.5,50+30 for pyriftalid, pretilachlor, metamifops
+ 8,50+33+7,50+33+7.5,50+33+8,50+36+7,50+36+7.5,50+36+8,65+30+7,65+30+7.5,65+
30+8,65+33+7,65+33+7.5,65+33+8,65+36+7,65+36+7.5,65+36+8,80+30+7,80+30+7.5,80
+ 30+8,80+33+7,80+33+7.5,80+33+8,80+36+7,80+36+7.5,80+36+8, the E- of ternary recompounded composite
E0Both less than -10%, synergistic effect is shown as to moleplant seed；And the synergistic effect when its ternary built is 65+33+7.5 is most
For notable, its E-E0It is worth for -13.17%.
The preventive effect of table 4-2 pyriftalids, pretilachlor, metamifops and its mixture to false loosestrife
Table 4-2 shows that specifically proportioning is 80+30+7.5 for pyriftalid, pretilachlor, metamifops, to false loosestrife synergy
Act on the most obvious, its E-E0It is worth for -16.64%.
The preventive effect of table 5-1 pyriftalids, pretilachlor, halosulfuronmethyl and its mixture to barnyard grass
Table 5-1 shows that specifically proportioning is 50+30+2,50+30+2.5,50+30 for pyriftalid, pretilachlor, halosulfuronmethyl
+ 3,50+33+2,50+33+2.5,50+33+3,50+36+2,50+36+2.5,50+36+3,65+30+2,65+30+2.5,65+
30+3,65+33+2,65+33+2.5,65+33+3,65+36+2,65+36+2.5,65+36+3,80+30+2,80+30+2.5,80
+ 30+3,80+33+2,80+33+2.5,80+33+3,80+36+2,80+36+2.5,80+36+3, the E- of ternary recompounded composite
E0Both less than -10%, synergistic effect is shown as to barnyard grass；And the synergistic effect when its ternary built is 80+36+3 shows the most
Write, its E-E0It is worth for -21.04%.
The preventive effect of table 5-2 pyriftalids, pretilachlor, halosulfuronmethyl and its mixture to false loosestrife
Table 5-2 shows that specifically proportioning is 80+30+3 for pyriftalid, pretilachlor, halosulfuronmethyl, and false loosestrife synergy is made
With the most obvious, its E-E0It is worth for -18.14%.
2) field control effectiveness test
Reagent agent：Various optional 4 of formulations.
Comparison medicament：Comparative example 1-6.
Subjects：Grass family：Barnyard grass, moleplant seed；Broad-leaved section：Monochoria vaginalis, false loosestrife.
Test method：
According to the area of experimental plot, the good various medicaments of precise, and be watered after dilution, using knapsack sprayer,
Carry out even spraying, the special Fan spray head of sprinkler selection herbicide.During spraying, it should be noted that decoction is uniformly sprayed application to experiment small
Qu Zhong, accomplishes the phenomenon sprayed without drain spray, more.20d, 40d observe weeds death condition after medicine respectively after experiment, and relatively more each
The activity of weeding of medicament is planted, 6-1,6-2,6-3,6-4,7-1,7-2,7-3,7-4 is specifically shown in Table.
The effect of 20 days after the embodiment dispenser of table 6-1 wettable powders
The effect of 20 days after the embodiment dispenser of table 6-2 water dispersible granules
The effect of 20 days after the embodiment dispenser of table 6-3 missible oil
The effect of 20 days after the embodiment dispenser of table 6-4 granules
The effect of 40 days after the embodiment dispenser of table 7-1 wettable powders
The effect of 40 days after the embodiment dispenser of table 7-2 water dispersible granules
The effect of 40 days after the embodiment dispenser of table 7-3 missible oil
The effect of 40 days after the embodiment dispenser of table 7-4 granules
As can be seen that the present invention passes through three kinds of active ingredients from table 6-1,6-2,6-3,6-4,7-1,7-2,7-3,7-4
Pyriftalid is used with pretilachlor and bispyribac-sodium/pyribenzoxim/metamifops/halosulfuronmethyl mixture, and drug effect is played
Than very fast, the preventive effect to barnyard grass, moleplant seed, Monochoria vaginalis, false loosestrife is higher than the preventive effect that agricultural chemicals is used alone, at the same to grass family,
The overall preventive effect that overall also above the two kinds agricultural chemicals of preventive effect of broad-leaved section weeds are used alone, achieve significant synergistic effect there is provided
Overall preventive effect so that herbicide controlling spectrum of the invention further expands.Simultaneously after the herbicide medication 20 days of the present invention and 40
Drug effect is substantially better than the prevention effect that two kinds of agricultural chemicals are used alone after it, and this shows that the herbicide of the present invention is not only acted on and more accommodated
Long, and it is difficult so that weeds especially malignant weed develops immunity to drugs.
The rice seedlings that field range estimation herbicide is respectively handled in cell grow fine, and have no any obvious medicine spot, illustrate this hair
Bright herbicide is safe to paddy rice.Herbicide of the present invention is easily degraded, to rice safety, is had no side effect；It is residual in soil
Stay the phase short, to succession crop safety.
It is known that the illustrative embodiments that above-described embodiment uses only for explanation inventive principle, but it is of the invention
This is not limited only to, those skilled in the art can make various improvement and change in the case where not departing from real situation of the present invention, these
Improve and change falls within protection scope of the present invention.
Claims (3)
1. a kind of Herbicidal composition for rice field, includes following two active ingredients：
Composition（A）：Pyriftalid；
Composition（B）：Pretilachlor；
Composition（C）：One kind in following compound：C1 bispyribac-sodiums, C2 pyribenzoxims, C3 metamifops, C4 chlorine pyrroles
It is a kind of in Sulfometuron Methyl；
Wherein, the composition（A）、（B）、（C）Mass ratio be 1-30:1-55:1-40, three's sum accounts for the hundred of Herbicidal combinations
It is 3-80% to divide content.
2. Herbicidal composition for rice field according to claim 1, it is characterised in that：The composition can be prepared into wettable
Pulvis, water dispersible granules, missible oil, granule.
3. rice weeding composition according to claim 1 or 2 is used for the application for preventing and treating paddy field weed.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819990A (en) * | 2019-03-28 | 2019-05-31 | 河南贝力沃生物科技有限公司 | A kind of rice direct seeding fields herbicidal and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819990A (en) * | 2019-03-28 | 2019-05-31 | 河南贝力沃生物科技有限公司 | A kind of rice direct seeding fields herbicidal and preparation method thereof |
| CN109819990B (en) * | 2019-03-28 | 2021-10-26 | 河南贝力沃生物科技有限公司 | Herbicide for direct seeding rice field and preparation method thereof |
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