CN107027796A - It is a kind of for herbicidal composition of rice terrace and application thereof - Google Patents
It is a kind of for herbicidal composition of rice terrace and application thereof Download PDFInfo
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- CN107027796A CN107027796A CN201710332988.5A CN201710332988A CN107027796A CN 107027796 A CN107027796 A CN 107027796A CN 201710332988 A CN201710332988 A CN 201710332988A CN 107027796 A CN107027796 A CN 107027796A
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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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- 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
-
- 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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
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- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The present invention relates to a kind of for herbicidal composition of rice terrace and application thereof, the herbicidal composition is made up of propanil, cyhalofop-butyl and bensulfuron-methyl.The comprehensive regulation of the herbicidal composition of the present invention to Weed Resistance is significant, compensate for defect and limitation when single dose is used, for agent for removing grass in paddy field, and first use can prevent and kill off field grass family, Cyperaceae and broad leaved weedses simultaneously, reaches a medicine multiple-effect;Herbicide spectrum width, quick-acting are good, and use cost is low, to rice safety, is the favourable agents of rice terrace cauline leaf process.
Description
【Technical field】
The invention belongs to technical field of pesticide.More particularly it relates to a kind of combinations of herbicides for rice terrace
Thing, further relates to the purposes of the herbicidal composition.
【Background technology】
Currently, in the main rice region of China, mainly have to the weeds caused harm of Rice Production formation gramineous grass, Cyperaceae grass and
For example hard bran barnyard grass of the three major types such as broadleaved herb weeds, cyperus iria, ear leaf water amaranth etc..These weed control methods except soil closing at
Reason is exactly after seedling cauline leaf process (after emerging), at present, the herbicide products applied to after seedling cauline leaf process have five outside (before emerging)
Penoxsulam, dichloro quinoline acid, due to being used for a long time, resistance rise it is serious, conventional amount used to grass family class Echinochloa Weed-control effect only
There is 30-40%, it is substantially invalid to moleplant seed, Sha section weeds;Cyhalofop-butyl is preferable to moleplant seed preventive effect but barnyard grass preventive effect is poor, wealthy
Leaf weeds and sedge weed are without preventive effect;Bensulfuron-methyl is good to broad leaved weed and sedge weed preventive effect, but to barnyard grass and a thousand pieces of gold
Son is without preventive effect;The built agent such as penoxsuam cyhalofop-butyl and cyhalofop-butyl dichloro quinoline acid to the preventive effects of above-mentioned weeds not yet
It is satisfactory.So far, also not to grassy weed, broad leaved weeds such as the hard bran barnyard grass of rice terrace, ear leaf water amaranth, cyperus irias
Single dose or built agent product with sedge weed all with good preventive effect.In order to improve preventive effect, when preventing and kill off often according to certainly
Body experience, carries out collocation in the edge of a field with different herbicide single doses and uses with, lack scientific, preventive effect is unstable, sends out often
Crude drug evil causes the paddy rice underproduction, also accelerates the generation of herbicide resistance, has aggravated ecological environmental pollution.As can be seen here, research and develop
A kind of efficient, wide spectrum, safe, inexpensive rice terrace foliar herbicide are the task of top priority.
Therefore, the present inventor is carried out propanil, cyhalofop-butyl and bensulfuron-methyl by lot of experiments and analysis and summary
Science is combined and auxiliary material is combined into preparation, is completed finally for preventing and kill off the hard bran barnyard grass in rice field, cyperus iria, ear leaf water amaranth etc. 1 year
The composition pesticide invention of raw weeds.
【The content of the invention】
[technical problem to be solved]
It is an object of the invention to provide a kind of herbicidal composition for rice terrace.
It is a further object to provide the purposes of the herbicidal composition for rice terrace.
[technical scheme]
The present invention is achieved through the following technical solutions.
The present invention relates to a kind of herbicidal composition for rice terrace.Described herbicidal composition be by 1.0~
What 72.0 parts by weight propanil, 1.0~50.0 parts by weight cyhalofop-butyls and 0.5~16.0 parts by weight bensulfuron-methyl were constituted.
A preferred embodiment of the invention, described herbicidal composition is opposed by 20.0~65 parts by weight
What barnyard grass, 4.0~30. parts by weight cyhalofop-butyls and 2.0~9.0 parts by weight bensulfuron-methyls were constituted.
The invention further relates to a kind of compound herbicide for rice terrace, described compound herbicide contains by weight 20
Herbicidal composition described in~75%, is acceptable carrier and/or auxiliary agent on agricultural chemicals with surplus.
According to another preferred embodiment of the present invention, described compound herbicide contains 25~65% institute by weight
The herbicidal composition stated, is acceptable carrier and/or auxiliary agent on agricultural chemicals with surplus.
According to another preferred embodiment of the present invention, described compound herbicide contains 30~58% institute by weight
The herbicidal composition stated, is acceptable carrier and/or auxiliary agent on agricultural chemicals with surplus.
According to another preferred embodiment of the present invention, described carrier and/or auxiliary agent be selected from wetting agent, dispersant,
Disintegrant, binding agent and filler.
According to another preferred embodiment of the present invention, the formulation of the compound herbicide is wettable powder, micro emulsion
Agent, aqueous emulsion, aqueous suspension agent, oil-suspending agent or water dispersible granules.
The invention further relates to purposes of the described compound herbicide in preventing and treating paddy field weed.
A preferred embodiment of the invention, described paddy field weed is grassy weed, sedge weed
With broad leaved weed.
According to another preferred embodiment of the present invention, described rice terrace is rice seedling bed, direct-sowing dry, water direct seeding, the machine transplanting of rice
Seedling transplants rice seedling bed and dryland paddy.
The present invention is described in more detail below.
The present invention relates to a kind of herbicidal composition for rice terrace.Described herbicidal composition be by 1.0~
What 72.0 parts by weight propanil, 1.0~50.0 parts by weight cyhalofop-butyls and 0.5~16.0 parts by weight bensulfuron-methyl were constituted.
Propanil, chemical name N- (3,4- dichlorophenyl) propionamide belongs to acetamide-group herbicides.It is mainly selected by height
Property action of contace poison, is selective herbicide after seedling.Propanil is used for hard bran barnyard grass, the horse for preventing and kill off the Tanaka such as rice seedling bed, live, rice transplanting
Tang, green bristlegrass etc., Echinochloa weeds special efficacy especially resistant to penoxsuam, dichloro quinolinic acid, butachlor, using cauline leaf
Processing, to rice safety, but it is poor to moleplant seed preventive effect, invalid to most of broadleaved herb and nutgrass flatsedge.
Cyhalofop-butyl, chemical name (R) -2- [4- (4- cyano group -2- fluorophenoxies) phenoxy group] butyl propionate, the fragrant oxygen benzene of category
Epoxide propionic acid ester herbicide.It can be absorbed by plant leaf blade and leaf sheath, and bast conduction is accumulated in the meristematic zone of plant, suppression
Acetyl-CoA carboxylase processed, makes aliphatic acid synthesis stopping, and cell division can not be normally carried out, the structure containing fat such as membranous system
It is destroyed, finally result in Plant death.Cyhalofop-butyl is to moleplant seed special efficacy, using cauline leaf process, and to Security of rice very
It is high.But it is poor to above the average age for marriage barnyard grass preventive effect, invalid to broadleaved herb and nutgrass flatsedge.
Bensulfuron-methyl, chemistry title 2- (4,6- dimethoxypyridin -2- bases) amino is carbon-based) and amidosulfobetaines methyl } benzoic acid
Methyl esters;N- (4,6- dimethoxypyridin -2- bases) neighbour's methyl formate benzyl sulfonylureas;It is translocated herbicide in selectivity.Medicine
Agent is spread rapidly in water, is transferred to other positions after being absorbed through weeds root and blade, is hindered branched-chain amino acid biosynthesis.
Susceptible weeds growth function is obstructed, tender tissue turns to be yellow too early, suppresses leaf portion, root growth and causes grass dead.It can effectively prevent and treat rice
The annual and perennial broad leaved weed in field, such as Monochoria vaginalis, ear leaf water amaranth, bog pondweed, mexicana;To Sha section weeds such as ox hair
The preventive effects such as grass, cyperus iria, difformed galingale herb, Herba Cyperi Glomerati are good.Application method flexibly, close or after seedling cauline leaf process by before seedling soil
, to rice safety.But it is miscellaneous to Echinochloas such as barnyard grass, moleplant seeds substantially invalid.
In the present invention, when cyhalofop-butyl and bensulfuron-methyl are in the content range, if the content of propanil is less than 1.0
During parts by weight, then without practical value;If the content of propanil is higher than 72.0 parts by weight, the production technology of maturation there is no;Cause
This, the content of propanil is rational, preferably 20.0~65.0 parts by weight for 1.0~72.0 parts by weight, more preferably 30
~55.0 parts by weight.
Similarly, when propanil and bensulfuron-methyl are in the content range, if the content of cyhalofop-butyl is less than 1.0 weight
Part, then without practical value;If the content of cyhalofop-butyl is higher than 50.0 parts by weight, the production technology of maturation there is no;Therefore,
The content of cyhalofop-butyl is that 1.0~50.0 parts by weight are appropriate, preferably 4.0~30.0 parts by weight, more preferably
6.0~20.0 parts by weight.
When propanil and cyhalofop-butyl are in the content range, if the content of bensulfuron-methyl is less than 0.5 parts by weight,
Without practical value;If the content of bensulfuron-methyl is higher than 16.0 parts by weight, overdose increase agriculture sheet is easily caused;Therefore, benzyl
The content of Sulfometuron Methyl is that 0.5~16.0 parts by weight are suitable, preferably 2.0~9.0 parts by weight, more preferably 2.5~
7.0 parts by weight.
Propanil, cyhalofop-butyl and bensulfuron-methyl that the present invention is used all are the products sold in the market, such as by crane
The propanil of hilllock city English power agrochemical sale, the cyhalofop-butyl by Jiangsu Zhong Qi crop protection limited distributions, by Changzhou, Su Yue chemical industry has
The bensulfuron-methyl of limit company sale.
Preferably, described herbicidal composition is by 20~65.0 parts by weight propanil, 4.0~30.0 parts by weight cyanogen fluorine
What careless ester and 2.0~9.0 parts by weight bensulfuron-methyls were constituted.
The invention further relates to a kind of compound herbicide for rice terrace, described compound herbicide contains by weight 20
Herbicidal composition described in~75%, is acceptable carrier and/or auxiliary agent on agricultural chemicals with surplus.
In the present invention, on agricultural chemicals acceptable carrier or auxiliary agent it should be understood that being used in Pesticide formulation or use
In improving medicament physicochemical property, drug effect is improved, the auxiliary substance of the performances such as storage is readily transported, such as wetting agent, dispersant, collapses
Solve agent, binding agent and filler.It is every that there are these performances and do not have any negative to compound herbicide of the present invention according to the present invention
The chemical substance that face rings may be used to the present invention, and they are all within protection scope of the present invention.
The carrier or auxiliary agent that the present invention is used all are commonly utilized carrier or auxiliary agent in technical field of pesticide, are e.g. moistened
Humectant Tersperse 1004 (Sulfonates anion wetting agent);Dispersant Geropon T/36 (polycarboxylate anions point
Powder), Tamol DN (phenolsulfonic acid condensation product sodium salt), help disintegrating agent carboxymethyl base cellulose, binding agent polyvinyl alcohol 1799, sulphur
Sour ammonium, filler cornstarch, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate), detergent (to methoxyl group fatty acyl amido benzene sulfonic acid sodium salt), wood
Quality sodium sulfonate, white carbon, kaolin etc..Carrier or auxiliary agent that the present invention is used all are the product sold in the market, example
The Tersperse 1004 that is such as sold by Shang Hai System river Chemical Co., Ltd.s with trade name Tersperse 1004, China is preced with by Nanjing
Geropon T/36 that trade Co., Ltd is sold with trade name Geropon T/36, by the limited public affairs of the modern chemical industry of upper Haitai with commodity
The Tamol DN of name TAMOL DN sale, by Shanghai ten thousand there is the carboxymethyl cellulose that company is sold with trade name CMC according to fine chemistry industry
Element, the NNO sold by Shanghai Tiantan Accessory Ingredient Co., Ltd with trade name dispersing agent NNO etc..
According to the present invention, if the herbicidal composition content in the compound herbicide is less than 20%, without practical valency
Value;If the herbicidal composition content in the compound herbicide is more than 75%, the production technology of maturation there is no;Therefore,
Herbicidal composition content be 20%~75% be it is rational, preferably 25~65%, more preferably 30~58%.
Preferably, the herbicidal composition that described compound herbicide contains by weight described in 25~65% is with surplus
Acceptable carrier and/or auxiliary agent on agricultural chemicals.
It is highly preferred that described compound herbicide contains herbicidal composition and surplus by weight described in 30~65%
For acceptable carrier and/or auxiliary agent on agricultural chemicals.
In actual applications, can according to method well known to those skilled in the art by the present invention herbicidal composition with
Carrier and/or auxiliary agent are configured in the formulation agriculturally generally used.According to the present invention, the formulation of the compound herbicide is can
WP, microemulsion, aqueous emulsion, aqueous suspension agent, oil-suspending agent or water dispersible granules.It is ripe for example with those skilled in the art
The herbicidal composition of the present invention and NNO, detergent, sodium lignin sulfonate, white carbon, kaolin are configured to by the method known can
WP.
The invention further relates to purposes of the described compound herbicide in preventing and treating paddy field weed.
According to the present invention, described paddy field weed is grassy weed, sedge weed and broad leaved weed.Described water
Rice field is rice seedling bed, direct-sowing dry, water direct seeding, transplanting or transplants rice seedling bed.
When preventing and treating paddy field weed, compound herbicide application method of the present invention is typically spraying;The dosage used is usual
It is:Every mu of effective ingredient 90g when leaf phases (weeds 2-3).
[beneficial effect]
The beneficial effects of the invention are as follows:
I, activity of weeding are high, and preventive effect is good.The compound herbicide of the present invention is to enter three kinds of different herbicide mechanism active components
Science is combined, multiple spot hit target, is greatly enhanced herbicidal effect, it is ensured that preventive effect.
II, a medicine multiple-effect, cost are low.The control object of three kinds of compound monomers of compound herbicide of the present invention is different, passes through
After science combination, significantly, a drug can efficiently control rice terrace grass family, Cyperaceae and wealthy for strong complementarity, synergy
Leaf class weeds, reach a medicine multiple-effect, and use cost is low.
III, delay Weed Resistance, improve preventive effect.Because compound herbicide is by the activity of three different mechanisms of action
Composition composition multiple spot hit target, has delayed the generation of herbicide resistance, has improved preventive effect.
It is IV, safe.The security survey result of table 6 shows that compound herbicide of the present invention is applied to rice terrace after seedling
Cauline leaf process is to Security of rice.
【Embodiment】
The present invention is will be better understood that by following embodiments.
Embodiment 1:Prepare compound herbicide aqueous suspension agent of the present invention
The implementation steps of the embodiment are as follows:
Weigh 26.5 parts by weight propanil, 3 parts by weight cyhalofop-butyls, 0.5 parts by weight bensulfuron-methyl, 3.5 parts by weight alkyl phenols
APEO, 6.0 parts by weight of polyoxyethylene polyoxy propylene block compounds, 1.5 parts by weight xanthans are with being supplemented to 100 weight
The water of part, pours into cutting kettle and shears uniform 40 minutes successively;By the semi-finished product sheared by grinder at normal temperatures and pressures
It is ground to that suspensibility is up to standard, that is, propanil, cyhalofop-butyl and bensulfuron-methyl total content is made into and is hanged for by weight 30.0% water
Floating agent.
Embodiment 2:Prepare compound herbicide aqueous suspension agent of the present invention
Weigh 36.5 parts by weight propanil, 4 parts by weight cyhalofop-butyls, 1.5 parts by weight bensulfuron-methyls, 3.5 parts by weight alkyl phenols
APEO, 5.4 parts by weight of polyoxyethylene polyoxy propylene block compounds, 1.2 parts by weight xanthans are with being supplemented to 100 weight
The water of part, pours into cutting kettle and shears uniform 40 minutes successively;By the semi-finished product sheared by grinder at normal temperatures and pressures
It is ground to that suspensibility is up to standard, that is, propanil, cyhalofop-butyl and bensulfuron-methyl total content is made into and is hanged for by weight 42.0% water
Floating agent.
Embodiment 3:Prepare compound herbicide water dispersible granules of the present invention
Weigh 60.0 parts by weight propanil, 1.0 parts by weight cyhalofop-butyls, 2.0 parts by weight bensulfuron-methyls, the wetting of 4.2 parts by weight
Agent Tersperse 1004 (Huntsman), 5.8 parts per weight dispersing agent Geropon T/36 (Rhodia), 2.7 parts by weight are disperseed
Agent Tamol DN (BASF), 3.2 parts by weight help disintegrating agent carboxymethyl base cellulose, 1.0 parts by weight binder polyvinyl alcohol 1799,
10.0 parts sulfuric acid ammoniums and the filler cornstarch for being supplemented to 100 parts by weight, pour into mixer and stir 30 points successively
Clock.Uniform material will be mixed air-flow crushing is carried out by airslide disintegrating mill, after terminating, main frame material and dust arrester will be collected
Material is well mixed 10 minutes again;Material well mixed again is poured into and adds running water in stirring mixer while stirring
(by weight 12%) is fabricated to softwood;Wet particle is fabricated to by extruding granulator by softwood;Passing through fluidized bed dryer
Formula heated-air circulation oven, the drying particulate by wet particle drying to water content less than by weight 3%.By sifter by drying
Good particle is put into sifter, screens out bulk and fine powder i.e. shaping, and the drying grain after shaping is detected into every quality index
Qualified propanil, cyhalofop-butyl and the bensulfuron-methyl total content of being made is by weight 63%% water dispersible granules.
Embodiment 4:Prepare compound herbicide wettable powder of the present invention
Weigh 72.0 parts by weight propanil, 2.0 parts by weight cyhalofop-butyls, 1.0 parts by weight bensulfuron-methyls, 2.0 parts by weight NNO
(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate), 3.7 parts by weight detergents (LS), 4.3 parts by weight neopelexes, 2.5 parts by weight wood
Quality sodium sulfonate, the white carbon for being supplemented to 100 parts by weight, pour into mixer and stir 30 minutes successively.By the mother of mixing
Powder carries out air-flow crushing, after terminating, and the material that main frame material and dust arrester are collected is mixed 10 minutes again.Then detect
Qualified propanil, cyhalofop-butyl and the bensulfuron-methyl total content of being made of indices is by weight 75% wettable powder.
Embodiment 5:Prepare compound herbicide water dispersible granules of the present invention
Weigh 7.0 parts by weight propanil, 31.0 parts by weight cyhalofop-butyls, 2.0 parts by weight bensulfuron-methyls, the wetting of 4.7 parts by weight
Agent Tersperse 1004 (Huntsman), 5.2 parts per weight dispersing agent Geropon T/36 (Rhodia), 2.4 parts by weight are disperseed
Agent Tamol DN (BASF), 3.2 parts by weight help disintegrating agent carboxymethyl base cellulose, 1.0 parts by weight binder polyvinyl alcohol 1799,
10.0 parts sulfuric acid ammoniums and the filler cornstarch for being supplemented to 100 parts by weight, pour into mixer and stir 30 points successively
Clock.The female powder of mixing is subjected to air-flow crushing, after terminating, the material that main frame material and dust arrester are collected is well mixed again
10 minutes;Material well mixed again is poured into mixer and adds running water (by weight 12%) while stirring and is fabricated to
Softwood;Wet particle is fabricated to by extruding granulator by softwood;By being dried in fluidized bed dryer formula heated-air circulation oven,
Wet particle drying to water content is less than to by weight 3% drying particulate.Dried particle is put into by sifter
In sifter, screen out bulk and fine powder i.e. shaping, by the drying grain after shaping detect every quality index it is qualified be made propanil,
Cyhalofop-butyl and the water dispersible granules that bensulfuron-methyl total content is by weight 40%.
Embodiment 6:Prepare compound herbicide water dispersible granules of the present invention
Weigh 48 parts by weight propanil, 5 parts by weight cyhalofop-butyls, 2 parts by weight bensulfuron-methyls, 4.5 parts by weight wetting agents
Tersperse 1004 (Huntsman), 5.5 parts per weight dispersing agent Geropon T/36 (Rhodia), 2.5 parts per weight dispersing agents
Tamol DN (BASF), 3.2 parts by weight help disintegrating agent carboxymethyl base cellulose, 1.0 parts by weight binder polyvinyl alcohol 1799,10.0
Parts sulfuric acid ammonium and the filler cornstarch for being supplemented to 100 parts by weight, pour into mixer and stir 30 minutes successively.Will
The mixed material being uniformly well mixed carries out air-flow crushing by airslide disintegrating mill, after terminating, by main frame material and dust arrester
The material of collection mixes 10 minutes uniformly again;Material well mixed again is poured into stirring mixer and added while stirring
Running water (by weight 12%) is fabricated to softwood;Wet particle is fabricated to by extruding granulator by softwood;By in fluid bed
Drier formula heated-air circulation oven, is the drying particulate less than by weight 3% by wet particle drying to water content.Pass through screening
Dried particle is put into sifter by device, screens out bulk and fine powder i.e. shaping, and the drying grain after shaping is detected into every
Qualified propanil, cyhalofop-butyl and the bensulfuron-methyl total content of being made of quality index is by weight 55% water dispersible granules.
Embodiment 7:Prepare compound herbicide wettable powder of the present invention
Weigh 1.0 parts by weight propanil, 50.0 parts by weight cyhalofop-butyls, 4.0 parts by weight bensulfuron-methyls, 2.3 parts by weight NNO
(di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate), 3.5 parts by weight sodium lignin sulfonates, 3.5 parts by weight detergents (LS), 4.0 parts by weight dodecanes
Base benzene sulfonic acid sodium salt, 15 parts by weight white carbons and the kaolin for being supplemented to 100 parts by weight, pour into stir 30 in mixer successively
Minute.The female powder of mixing is subjected to air-flow crushing, after terminating, the material that main frame material and dust arrester are collected mixes 10 again
Minute.Then qualified propanil, cyhalofop-butyl and the bensulfuron-methyl total content of being made of detection indices is by weight 55%
Wettable powder.
Embodiment 8:Prepare compound herbicide wettable powder of the present invention
Weigh 16 parts by weight propanil, 3.0 parts by weight cyhalofop-butyls, 1.0 parts by weight bensulfuron-methyls, 6 parts by weight sulfomethylated lignins
Sour sodium, 1.5 parts by weight NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate), 1.5 parts by weight detergents (LS), 5 parts by weight white carbons are with being supplemented to
The kaolin of 100 parts by weight, pours into mixer and stirs 30 minutes successively.The female powder of mixing is subjected to air-flow crushing, knot
Shu Yihou, the material that main frame material and dust arrester are collected is mixed 10 minutes again.Then detection indices are qualified is made
Propanil, cyhalofop-butyl and bensulfuron-methyl total content are by weight 20% wettable powder.
Embodiment 9:Prepare compound herbicide wettable powder of the present invention
Weigh 9.0 parts by weight propanil, 5 parts by weight cyhalofop-butyls, 16.0 parts by weight bensulfuron-methyls, 3.0 parts by weight NNO (sub-
The double bitter edible plant sodium sulfonates of methyl), 2.5 parts by weight detergents (LS), 4 parts by weight sodium lignin sulfonates, 6.0 parts by weight white carbons and supplement
To the kaolin of 100 parts by weight, pour into mixer and stir 30 minutes successively.The female powder of mixing is subjected to air-flow crushing,
After end, the material that main frame material and dust arrester are collected is mixed 10 minutes again.Then detection indices are qualified makes
It is by weight 30% wettable powder to obtain propanil, cyhalofop-butyl and bensulfuron-methyl total content.
Embodiment 10:Prepare compound herbicide aqueous suspension agent of the present invention
Weigh 17 parts by weight propanil, 2.5 parts by weight cyhalofop-butyls, 0.5 parts by weight bensulfuron-methyl, 3.7 parts by weight alkyl phenols
APEO, 6.2 parts by weight of polyoxyethylene polyoxy propylene block compounds, 1.9 parts by weight xanthans are with being supplemented to 100 weight
The water of part, pours into cutting kettle and shears uniform 40 minutes successively;By the semi-finished product sheared by grinder at normal temperatures and pressures
It is ground to that suspensibility is up to standard, that is, it is by weight 20% aqueous suspension that propanil, cyhalofop-butyl and bensulfuron-methyl total content, which is made,
Agent.
Test example 1:Toxicity is tested
These pharmacy mix are determined to the hard bran of rice field main weeds using the embodiment 1-5 compound herbicides of the present invention prepared
Barnyard grass, ear leaf water amaranth, the co-toxicity coefficient (CTC) of cyperus iria.
Test method is as follows:
Load sieving fine earth in the plastic culture alms bowl of 17 × 10 × 5 (cm) specifications, then by hard bran barnyard grass, ear leaf amaranth, broken
Meter Sha Cao seeds are sowed at wherein, and every kind of weeds broadcast 20-25, are cultivated to chemicals treatment is carried out during 3 leaf, are handled in heliogreenhouse
Method reference《People's Republic of China (PRC) agricultural industry criteria NY/T 1155.7-2006, farm-chemical indoor determination test rule
The part of herbicide the 7th:The synergy of mixture is determined》.The residual survival weeds aerial part of each processing is investigated within 25 days after processing
Fresh weight, fresh weight preventive effect is calculated using following formula:
According to co-toxicity coefficient method, each medicament single dose is calculated and with the virulence regression equation and co-toxicity coefficient for comparing weeds.Root
According to NY/T 1155.7-2006 standards, co-toxicity coefficient is expressed as synergistic effect more than 120, and antagonism, 80- are expressed as less than 80
Summation action is expressed as between 120.These result of the tests are listed in table 1-3.
Table 1:Propanil, cyhalofop-butyl and compound herbicide toxicity measurement result of the present invention
Table 2:Propanil, bensulfuron-methyl and compound herbicide toxicity measurement result of the present invention
Table 3:Propanil, bensulfuron-methyl and compound herbicide toxicity measurement result of the present invention
Table 1, the result of table 2 and table 3 show, answering containing propanil, cyhalofop-butyl and bensulfuron-methyl prepared by embodiment 1-5
Close the co-toxicity coefficient that herbicide determines to hard bran barnyard grass, ear leaf water amaranth, cyperus iria toxicity be 123.18~148.17 respectively,
151.45~142.96 and 160.32~156.62, they are both greater than 120, therefore compound herbicide of the present invention performance shows very much
Write synergistic effect.
Test example 2:Field control effectiveness test
Test medicine:Five kinds of compound herbicides prepared by embodiment 1-5
Comparison medicament:40% propanil missible oil, 100g/L aqueous cyhalofop-butyl emulsions, 10% bensulfuron-methyl wettable powder
Trial crops:Paddy rice
More paddy rice fields occur for experiment selection weeds, and in rice seedling 3-4 leaves, paddy growth is good.
Control object:Rice field dominant weed, hard bran barnyard grass, moleplant seed, cyperus iria, ear leaf water amaranth, weeds 2-3 leaf phases.
Test method:According to《GB/1798.41-2000 field control effectiveness tests criterion is implemented
Each processing dosing is accurately weighed or drawn, spraying is watered with knapsack sprayer, clear water control treatment is separately set,
Each 20 square metres of plot area of processing, random alignment, three repetitions.
Security of each processing to paddy rice is estimated after 5 days, 10 days in dispenser respectively, investigates anti-respectively after 45 days in dispenser
Effect.
The preventive effect (after medicine 45 days) of compound herbicide prepared by the embodiment of the present invention in field test
Table 4:Strain preventive effect result of the different weeds after dispenser 45 days
Herbicide | Consumption (ga.i./mu) | Grassy weed | Broad leaved weed | Nutgrass flatsedge | Total grass |
Propanil | 200 | 71.6 | 41.3 | 32.5 | 48.5 |
Cyhalofop-butyl | 7 | 84.4 | - | - | 28.1 |
Bensulfuron-methyl | 3 | 8.9 | 92.4 | 88.4 | 63.2 |
Embodiment 1 | 90 | 91.1 | 87.6 | 92.6 | 90.4 |
Embodiment 2 | 90 | 93.7 | 89.4 | 91.9 | 91.7 |
Embodiment 3 | 90 | 92.6 | 90.5 | 95.4 | 92.8 |
Embodiment 4 | 90 | 93.1 | 92.2 | 93.7 | 93.0 |
Embodiment 5 | 90 | 90.9 | 91.7 | 96.6 | 93.1 |
Table 5:Fresh weight preventive effect result of the different weeds after dispenser 45 days
Herbicide | Consumption (ga.i./mu) | Grassy weed | Broad leaved weed | Nutgrass flatsedge | Total grass |
Propanil | 200 | 88.6 | 75.1 | 71.3 | 78.3 |
Cyhalofop-butyl | 7 | 90.5 | - | - | 30.1 |
Bensulfuron-methyl | 3 | 13.7 | 92.1 | 90.4 | 65.4 |
Embodiment 1 | 90 | 98.6 | 94.5 | 93.5 | 97.0 |
Embodiment 2 | 90 | 97.2 | 93.0 | 94.2 | 95.5 |
Embodiment 3 | 90 | 98.7 | 95.1 | 96.7 | 96.8 |
Embodiment 4 | 90 | 97.2 | 96.7 | 96.4 | 96.8 |
Embodiment 5 | 90 | 96.4 | 95.4 | 97.3 | 96.4 |
The consumption that table 4 and table 5 are listed is effective ingredient consumption in each confession test preparation.As can be seen that real from table 4 and table 5
Apply the average strain of compound herbicide of the present invention prepared by 1-5 to grassy weed, broad leaved weed and nutgrass flatsedge after dispenser 45 days
Preventive effect is 92.2%, and mean fresh preventive effect is 96.5%, compared with one pack system is compareed, the Herbicidal synergic of compound herbicide of the present invention
Effect is extremely notable.
Table 6:Using security survey result of the different agents to paddy rice
The security survey result of table 6 shows:Paddy rice well-grown in each processing cell, does not occur dead seedling, does not also observe
There is poisoning spot, leaf color and falls the symptoms such as yellow and plant height dwarfing in paddy rice, and it is safe to paddy rice to show compound herbicide of the present invention.
Summary, the compound herbicide of the invention containing propanil, cyhalofop-butyl and bensulfuron-methyl composition is to rice terrace
Hard bran barnyard grass, ear leaf water amaranth and cyperus iria have excellent preventive effect, realize three complementations of single dose advantages, Synergistics and make
It is expected with significant.When preventing and treating paddy field weed, rice terrace grass family can be effectively controlled using the compound herbicide in good time
Weeds, broad leaved weed and nutgrass flatsedge are caused harm, and therefore, compound herbicide of the present invention is a kind of preferable rice terrace cauline leaf process weeding
Agent a, depthkeeping is welcome by peasant household, wide market.
Claims (10)
1. a kind of herbicidal composition for rice terrace, it is characterised in that described herbicidal composition is by 1.0~72.0
What parts by weight propanil, 1.0~50.0 parts by weight cyhalofop-butyls and 0.5~16.0 parts by weight bensulfuron-methyl were constituted.
2. herbicidal composition according to claim 1, it is characterised in that described herbicidal composition is by 20~65
What parts by weight propanil, 4.0~30.0 parts by weight cyhalofop-butyls and 2.0~9.0 parts by weight bensulfuron-methyls were constituted.
3. a kind of compound herbicide for rice terrace, it is characterised in that described compound herbicide contain by weight 20~
Herbicidal composition described in 75% claim 1 or 2, is acceptable carrier and/or auxiliary agent on agricultural chemicals with surplus.
4. compound herbicide according to claim 3, it is characterised in that described compound herbicide contains by weight 25
Herbicidal composition described in~65% claim 1 or 2, is acceptable carrier and/or auxiliary agent on agricultural chemicals with surplus.
5. compound herbicide according to claim 3, it is characterised in that described compound herbicide contains by weight 30
Herbicidal composition described in~58% claim 1 or 2, is acceptable carrier and/or auxiliary agent on agricultural chemicals with surplus.
6. compound herbicide according to claim 3, it is characterised in that described carrier and/or auxiliary agent be selected from wetting agent,
Dispersant, disintegrant, wetting agent, binding agent and filler.
7. compound herbicide according to claim 3, it is characterised in that the formulation of the compound herbicide is wettable powder
Agent, microemulsion, aqueous emulsion, aqueous suspension agent, oil-suspending agent microemulsion or water dispersible granules.
8. purposes of the compound herbicide in preventing and treating paddy field weed described in any one of claim 3-8 claim.
9. purposes according to claim 8, it is characterised in that described paddy field weed is that grassy weed, Cyperaceae are miscellaneous
Grass and broad leaved weed.
10. purposes according to claim 8, it is characterised in that described rice terrace is rice seedling bed, direct-sowing dry, water direct seeding, machine
Rice seedling bed and dryland paddy are transplanted in rice transplanting.
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Citations (4)
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DE3633363A1 (en) * | 1986-10-01 | 1988-04-14 | Bayer Ag | Composition for selective weed control in rice |
CN101601403A (en) * | 2009-07-23 | 2009-12-16 | 江苏辉丰农化股份有限公司 | Paddy field weeding composition containing cyhalofop-butyl and bensulfuron methyl |
CN102265861A (en) * | 2010-06-03 | 2011-12-07 | 南京华洲药业有限公司 | Mixed herbicide containing bentazone, cyhalofop-butyl and propanil and application thereof |
CN104255729A (en) * | 2014-10-11 | 2015-01-07 | 江苏省农业科学院 | Pesticide composition containing propanil and cyhalofop-butyl and application of pesticide composition |
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2017
- 2017-05-12 CN CN201710332988.5A patent/CN107027796A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3633363A1 (en) * | 1986-10-01 | 1988-04-14 | Bayer Ag | Composition for selective weed control in rice |
CN101601403A (en) * | 2009-07-23 | 2009-12-16 | 江苏辉丰农化股份有限公司 | Paddy field weeding composition containing cyhalofop-butyl and bensulfuron methyl |
CN102265861A (en) * | 2010-06-03 | 2011-12-07 | 南京华洲药业有限公司 | Mixed herbicide containing bentazone, cyhalofop-butyl and propanil and application thereof |
CN104255729A (en) * | 2014-10-11 | 2015-01-07 | 江苏省农业科学院 | Pesticide composition containing propanil and cyhalofop-butyl and application of pesticide composition |
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