CN106719752A - Herbicidal combinations - Google Patents
Herbicidal combinations Download PDFInfo
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- CN106719752A CN106719752A CN201610917463.3A CN201610917463A CN106719752A CN 106719752 A CN106719752 A CN 106719752A CN 201610917463 A CN201610917463 A CN 201610917463A CN 106719752 A CN106719752 A CN 106719752A
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- rice
- isoproturon
- pendimethalin
- herbicidal combinations
- clomazone
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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
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
-
- 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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- Life Sciences & Earth Sciences (AREA)
- 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)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of Herbicidal combinations, including following active principle：Clomazone, pendimethalin and isoproturon, the weight ratio of the clomazone, pendimethalin and isoproturon is（1‑3）:（3‑7）:（4‑10）, clomazones, pendimethalin and isoproturon gross weight percentage composition in the composition are 1%~45%.Preventing and kill off with good synergistic function to rice terrace malignant weed rice Leersia Sw of the invention, solve and prevent and kill off rice Leersia Sw problem, reduce Pesticide use amount, alleviate the pollution to environment, and it is good to Security of rice, it is a kind of very outstanding herbicide composition for preventing and kill off rice terrace annual grassy weeds and malignant weed rice Leersia Sw.
Description
Technical field
The invention belongs to pesticide field, more particularly, to one kind for preventing and kill off rice terrace annual grassy weeds and malignant weed rice
The Herbicidal combinations of Leersia Sw.
Background technology
Clomazone (clommazone) chemical name 2- (2- chlorobenzyls) -4,4- dimethyl isoxazole quinoline -3- ketone, belongs to
Herxheimer-liked reaction inhibitor, is synthesized by suppressing pentylene compound, hinders the biological conjunction of carrotene and chlorophyll
Into.Absorbed through the root of plant, young shoot, upward transporting, and leaf portion is diffused to through xylem.
Pendimethalin (pend imethalin) chemical name N- (1- ethyl propyls) -2,6- dinitro -3,4- dimethyl
Aniline, belongs to meristem cell division inhibitor.After young shoot, young stem, young root absorption medicament during suppressing weed seed germination
And work, final young shoot and secondary root are suppressed, and ultimately result in death.
Isoproturon (isoproturon) chemical name 3- (4- isopropyl phenyls) -1,1- dimethyl ureas, belongs to photosynthesis
Electron transfer inhibitor, category substituted urea class selectivity before seedling, herbicide after seedling, medicament mainly absorbs by weeds root and cauline leaf,
Leaf is transmitted to upwards with moisture in conduit, disturbs photosynthetic carrying out.
Rice Leersia Sw (Leersiahexandra Swartz) belongs to the perennial grassy weed of humidogene, is commonly called as not plump shell grass,
Bred by seed and creeping rootstock, well developed root system, vitality is strong, breeding is fast.It is special due to the improvement of cropping system and tillage method
It is not wideling popularize for water-saving irrigation, paddy field is often in wetland state, causes the original wetland weeds such as rice Leersia Sw to invade paddy field and expand
Exhibition spreads.From nineteen eighty-three since Heilongjiang Province Huanan County paddy field finds rice Leersia Sw first, rice Leersia Sw spreads in succession
Jidong, Mishan, Hulin Deng10Duo Ge counties and cities, occurring area is up to more than 10 ten thousand hm2, up to 15 00 plants/m when occurring serious2More than, water
No kernels or seeds are gathered, as in a year of scarcity for rice, has to lie fallow or replant other crops.It is conventional except Bai Ji metamifops, pyribenzoxim, bispyribac-sodium,
The preventive effects such as dichloro quinolinic acid, penoxsuam are not notable.
Inventor surprisingly sends out during the control technology correlation subject study of tackling key problem rice terrace malignant weed rice Leersia Sw
Existing , clomazones, three kinds of active ingredient compoundings of pendimethalin and isoproturon, three kinds of active ingredients are biological from interference carotenoid
Synthesize, suppress meristem cell division of young shoot young root etc. and suppress the not same-action machine such as photosynthesis of plant electron transmission
Reason cooperates with target plant, and the purpose of target plant is prevented and kill off to reach.Three kinds of clomazone, pendimethalin and isoproturon have
Not only rice terrace annual grassy weeds preventive effect is protruded after effect composition compounding, while also showing rice terrace malignant weed rice Leersia Sw
Go out the preventive effect of brilliance, and it is very safe to paddy rice under certain dosage.
The present invention is deeply ground to the Herbicidal combinations containing clomazone, pendimethalin and isoproturon using technology
Study carefully, by lot of experiments, complete the present invention, what it can effectively solve rice terrace malignant weed rice Leersia Sw prevents and kill off problem,
Mitigate the harm to paddy rice, increase production, increase income.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of poison more high and low to crop safety, low-residual, kill
Grass spectrum is wide, can effectively prevent and kill off the Herbicidal combinations of rice terrace annual grassy weeds and malignant weed rice Leersia Sw.
The technical solution adopted for the present invention to solve the technical problems is：A kind of Herbicidal combinations, including following effective group
Point：Clomazone, pendimethalin and isoproturon, the weight ratio of the clomazone, pendimethalin and isoproturon is (1-3):(3-
7):(4-10)。
The weight ratio of further , clomazones, pendimethalin and isoproturon is 2:5:7.
The weight of further , clomazones, pendimethalin and isoproturon accounts for the 1-45% of composition total weight.
Further, for the Herbicidal combinations of clomazone, pendimethalin and isoproturon can be processed as granule, can
WP, dispersible the formulation that the suitable agricultural production such as oil-suspending agent, suspension emulsion is used.
Further, for being processed into granule, wettable powder, dispersibling the formulations such as oil-suspending agent, suspension emulsion, ability
Field technique personnel are very familiar with using corresponding additive to complete the present invention.
Further, dispersant is sodium lignin sulfonate REAX82P, naphthalenesulfonatedispersant dispersant MORWET D425, alkylnaphthalene
One or more in sulfonic acid dipersant TERSPERSE 2020, polycarboxylate salt dispersant TERSPERSE 2700.
Further, wetting agent is a- sodium olefin sulfonates AOS, lauryl sodium sulfate, AEO sulfuric acid
One or more in sodium, AEO AEO-5, isomerous tridecanol polyoxyethylene ether Genapol X080.
Further, emulsifying agent is agriculture breast 500#, peaceful breast 34#, Tween 80, castor oil polyoxyethylene ether Emulsogen
One or more in EL360, phosphate dipersant Dispersogen LFS etc..
Further, binding agent is the one kind in glucose, Macrogol 4000, cornstarch, sodium carboxymethylcellulose
Or it is several.
Further, thickener is one or more in xanthans, aluminium-magnesium silicate, organobentonite etc..
Further, preservative is one or more in Kathon CG, Sodium Benzoate, citric acid etc..
Further, defoamer is organic silicon defoamer.
Further, carrier (solvent) be white carbon, kaolin, attapulgite, diatomite, fine particle calcium carbonate, methyl soyate,
One or more in ammonium sulfate；Water is deionized water.
The frequency of use and usage amount of Herbicidal combinations of the invention with plant growth, weeds occur, Changes in weather and
There is a small amount of change, the purpose of effective preventing and treating can be reached by using appropriate dosage.
Herbicidal combinations of the invention its active component , clomazones are carotenoid inhibitor, pendimethalin is mitogenetic
Histocyte divides inhibitor and isoproturon is photosynthesis electron transfer inhibitor, and three kinds of active component mechanisms of action are mutual not
It is identical, there is unexpected preventive effect to rice terrace malignant weed rice Leersia Sw after three is mixed, by indoor joint poison
Power experiment , clomazones, pendimethalin be mixed with isoproturon three to have the work of significant synergy to malignant weed rice Leersia Sw
With, while can also play good preventive effect to rice terrace annual grassy weeds, have herbicidal effect excellent after three is mixed, it is single
Agent consumption is reduced, and increasing production of rice, is increased income, the features such as safe to rear stubble.The present invention can be processed into granule, wettable powder,
The formulations such as oil-suspending agent, suspension emulsion are dispersibled to be adapted to be used in agricultural production.The present invention is adjuvant used and solvent belongs to environmental protection
Type, low toxicity, low-residual, to rice safety, will not produce murder by poisoning to crop, fishes and shrimps and water body in use.
In sum, the beneficial effects of the invention are as follows using conveniently, low cost can effectively reduce usage amount, reduce medication
Number of times, broad weed-killing spectrum has unexpected preventive effect to rice terrace malignant weed rice Leersia Sw.
Specific embodiment
In order that those skilled in the art are better understood from the present invention program, below by the technology in inventive embodiments
Scheme carries out clear, complete description.
Active ingredient uses 95% clomazone active compound, 98% pendimethalin active compound, 98% isopropyl in following examples
Grand active compound, active compound and auxiliary element are commercially available.
The clomazone 2% of embodiment 1, pendimethalin 5%, isoproturon 7%, a- sodium olefin sulfonates AOS 1%, sulfomethylated lignin
Sour sodium REAX82P 5%, glucose 5%, white carbon 5%, kaolin surplus.Clomazone is used white according to aforementioned proportion in advance
After carbon black absorption stands 24 hours, above-mentioned other compositions are well mixed in the ratio, by air-flow crushing, make material average
Particle diameter is less than 5 microns, and the kneading that adds water is uniform, moves to granulation in Granulation Equipments, and 14% clomazone two can be obtained after drying
The clever isoproturon granule of first penta.
The clomazone 1% of embodiment 2, pendimethalin 2.5%, isoproturon 3.5%, lauryl sodium sulfate 1%, naphthalene sulfonic acids
Dipersant MORWET D425 5%, Macrogol 4000 5%, white carbon 5%, attapulgite surplus.In advance Jiang Yi Evil grass
Pine is adsorbed after standing 24 hours according to aforementioned proportion with white carbon, and above-mentioned other compositions are well mixed in the ratio, is passed through
Air-flow crushing, makes material average grain diameter be less than 5 μm, and the kneading that adds water is uniform, moves to granulation in Granulation Equipments, can be obtained after drying
7% clomazone pendimethalin isoproturon granule.
The clomazone 3% of embodiment 3, pendimethalin 7%, isoproturon 10%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%,
Polycarboxylate salt dispersant TERSPERSE 2,700 5%, cornstarch 5%, white carbon 5%, diatomite surplus.In advance Jiang Yi Evil
Careless pine is adsorbed after standing 24 hours according to aforementioned proportion with white carbon, and above-mentioned other compositions are well mixed in the ratio, is passed through
Air-flow crushing is crossed, makes material average grain diameter less than 5 μm, and the kneading that adds water is uniform, granulation in Granulation Equipments is moved to, after drying
Obtain 20% clomazone pendimethalin isoproturon granule.
The clomazone 4% of embodiment 4, pendimethalin 10%, isoproturon 14%, diisobutyl sodium naphthalene sulfonate 2%, naphthalene sulfonic acids
Dipersant MORWET D425 5%, ammonium sulfate 10%, white carbon 6%, kaolin surplus.In advance Jiang clomazone according to upper
Ratio white carbon absorption standing is stated after 24 hours, above-mentioned other compositions are well mixed in the ratio, by air-flow crushing,
Make material average grain diameter less than 5 μm, obtain final product 28% clomazone pendimethalin isoproturon wettable powder.
The clomazone 4% of embodiment 5, pendimethalin 10%, isoproturon 14%, Tween 80 5%, peaceful breast 34#4%, agriculture breast
500#7%, organobentonite 4%, methyl soyate surplus.Above-mentioned material is well mixed, is ground by sand mill, make thing
Material average grain diameter is less than 5 μm, stops being sanded.Obtain final product 28% clomazone pendimethalin isoproturon and dispersible oil-suspending agent.
The clomazone 4% of embodiment 6, pendimethalin 10%, isoproturon 14%, (castor oil gathers Emul sogen EL360
Oxygen vinethene) 4%, Genapol X080 (isomerous tridecanol polyoxyethylene ether) 1%, Dispersogen LFS (phosphate salinities
Powder) 4%, organic silicon defoamer 0.2%, ethylene glycol 5%, xanthans 0.15%, Kathon CG 0.15%, water surplus.Jiang Yi Evil grass
Songyuan City's medicine is mixed in proportion with Emulsogen EL360, is designated as clomazone mother liquor.By pendimethalin, isoproturon,
Genapol X080, Dispersogen LFS, organic silicon defoamer, ethylene glycol, part water are well mixed, and are ground by sand mill
Mill, makes material average grain diameter less than 5 μm, stops being sanded, and Jiang clomazone mother liquor, 2% xanthans mother liquor, Kathon CG and remaining water
Add, shearing is uniform, obtains final product 28% clomazone pendimethalin isoproturon suspension emulsion.
Embodiment 7
It is of the invention by the way of indoor biometricses in order to verify the effect of Herbicidal combinations, Dui clomazones, pendimethalin
Different proportion co-toxicity with isoproturon is tested.
1. reagent agent
95% clomazone active compound, 98% pendimethalin active compound, 98% isoproturon active compound.
2. target is tested
Rice Leersia Sw (Leersiahexandra Swartz)
It is collected in September, 2013 and picks up from Changsha rice Leersia Sw stolon, using stipes
Cutting propagation.
3. testing equipment
(Ministry of Agriculture's Nanjing agriculture mechanization is ground for beaker, electronic balance, liquid-transfering gun, spray tower
Study carefully institute, 3WPSH-500D, atomisation pressure 3.0kg/cm3)
4. experimental procedure
Using potted plant cauline leaf process method (NY/T155.4.2006)：In the built-in quantitative wind of polypots (20cm*15cm*15cm)
Dry fine earth, will be for examination target rice Leersia Sw stolon cuttage in polypots body.It is positioned in greenhouse and cultivates, periodically using bottom
The mode moisturizing of irrigation, keeps ground moistening.Treat that the target phase long to of the right age carries out soil treatment, often treatment is repeated 3 times, and sets not
Treatment containing medicament is control.Material is tried after treatment and is positioned over warmhouse booth culture, routine observation target target victimization state, 30 days
Target damage symptoms and growth inhibition situation being estimated afterwards, and claiming aerial part fresh weight, it is to target weeds to calculate fresh weight inhibition
Preventive effect.
5. medicament configuration and design
Constant weight clomazones active compound, pendimethalin active compound, isoproturon active compound are first weighed, adds DMF solvent abundant
Diluted with the 0.1% Tween 80 aqueous solution after dissolving, be configured to single dose mother liquor, series proportioning is set according to mixture purpose, each is matched somebody with somebody
Than setting 6-7 concentration gradient.
The drug concentration gradient design table of table 1
6. data statistics and analysis：
6.1 according to investigation statisticses, calculating fresh weight inhibition (%)
Fresh weight inhibition (%)=(control fresh weight-treatment fresh weight)/control fresh weight * 100%
6.2 co-toxicity coefficient methods
Single dose clomazone, pendimethalin, isoproturon and 11 are obtained according to fresh weight inhibition using DPS data processing softwares
The virulence regression equation of group Ternary preparation, calculates ED50Value, 95% confidence limit and with Sun Yun abundant methods calculating co-toxicity coefficient.
The ED of actual toxicity index ATI=standard agents50The ED of/Mixed Pharmacy50*100
Percentage+confession the examination in mixing is assembled of theoretical toxicity index TTI=standard agent toxicity index * standard agents
Percentage+reagent agent toxicity index 2* the reagent agents 2 in mixing is assembled of medicament toxicity index 1* reagent agents 1 are being mixed
Percentage in combined group
Co-toxicity coefficient (CTC)=ATI/TTI*100%
Co-toxicity coefficient is calculated with the abundant methods of Sun Yun.Co-toxicity coefficient is expressed as synergistic effect more than 120, and antagonism is expressed as less than 80
Effect, is expressed as summation action between 80-120.
7. test results and analysis
The clomazone of table 2, the synergy of pendimethalin and isoproturon mixture to malignant weed rice Leersia Sw
According to the abundant co-toxicity coefficient methods of Sun Yun, co-toxicity coefficient is more than 120, with synergistic function, is worth bigger, Synergistic
Effect is more notable.As the , clomazones of table 2, the 11 Ternary combinations of pendimethalin and isoproturon have to the fresh weight of rice Leersia Sw
There is obvious inhibitory action, 1 in 11 proportionings:3:4；1:7:10；3:3:4；3:7:10；2:3:4；2:3:7；2:3:10；2:5:
4；2:5:7；2:5:10 and 2:7:7 co-toxicity coefficient is respectively 215.6461；168.5159；121.8877；299.7791；
210.4694；296.5517；261.9828；165.5901；307.2305；195.7863 and 157.6314.According to co-toxicity coefficient
Principle , clomazones, pendimethalin and isoproturon weight ratio are (1-3)：(3-7)：To malignant weed in (4-10) ratio range
The preventive effect of rice Leersia Sw has synergistic function, and wherein three's ratio is 2:5:7；3:7:10；2:3:7, co-toxicity coefficient value point
307.2305；299.7791；296.5517, co-toxicity coefficient value is maximum in above ratio range, to malignant weed rice Leersia Sw
Synergistic function is most notable.
Embodiment 8
Field control effectiveness test prevents and kill off direct sowing of rice field weed
Experiment selection in Changsha Wangcheng County, the region rice terrace using herbicide history for many decades, weeds
Population complicated difficult is prevented；Soil fertility is unanimously medium；Experimental field rice varieties：Stalk rice, long-grained nonglutinous rice；Planting patterns：Direct sowing of rice；Field
Main weeds have malignant weed rice Leersia Sw, moleplant seed, barnyard grass etc..Experiment sets 6 treatment altogether, and each treatment sets 3 repetitions.Place
Reason 1 is 14% Yi Evil diformazan isoproturons granule (2：5：7)；Treatment 2 is 7% Yi Evil pendimethalins granule (2：5)；
Treatment 3 is 16% Yi Evil diformazan prometryns granule (2：5：9)；Treatment 4 is 10% metamifop missible oil；Processing 5 is
10% bispyribac-sodium suspending agent；Treatment 6 is 5% pyribenzoxim missible oil；Treatment 7 is 60% dichloro quinolinic acid wettable powder；Water
Rice was in for 3 leaf phases using medication treatment, and treatment 1, treatment 2, treatment 3 use pesticide-clay mixture method, water conservation 7 days after medication；Treatment 4, treatment
5th, treatment 6, treatment 7 uses cauline leaf spraying treatment.Above medicament is provided by research and development department of Zhejiang Tianfeng Biological Science Co., Ltd..
Respondent and method：Observe within 7 days after medication each treatment agent on paddy growth situation influence and weeds it is aggrieved
Situation.30 days after medication, range estimation malignant weed rice Leersia Sw, barnyard grass preventive effect and the total preventive effect of field weed community.
The clomazone of table 3, pendimethalin and isoproturon ternary built respectively process 30 days field efficacies of rice direct seeding field medication
Result of the test.
According to investigation, 7 days after paddy rice medication, 14% Yi Evil diformazan isoproturons granule (2 of the invention：5：7)
In the range of test dose 300-400-500g to stalk rice and long-grained nonglutinous rice security very well, paddy growth is normal, have no blade burn,
The anomaly such as jaundice, withered.As can be seen here the present invention in the range of certain dosage to stalk rice and long-grained nonglutinous rice safety.
As can be seen that first, 14% Yi Evil diformazans of the invention are different from 30 days result of the tests after the crop field medication of table 3
Third grand granule (2：5：7) in the range of test dose 300-400-500g to malignant weed rice Leersia Sw preventive effect be 88.65%-
92.27%-100%, the total preventive effect in field has reached and has prevented and kill off field malignant weed rice Leersia Sw weeds purpose more than 95.32%.
Second, 14% Yi Evil diformazan isoproturons granule (2 of the invention：5：7) with the Yi Evil pendimethalin particles of reagent agent 7%
Agent (2：5) with 16% Yi Evil diformazan prometryns granule (2：5：9) and current main flow keeping from ill weeds rice Leersia Sw
The metamifop missible oil of herbicide 10%, 10% bispyribac-sodium suspending agent, 5% pyribenzoxim missible oil, 60% dichloro quinolinic acid can
WP is compared, 14% Yi Evil diformazan isoproturons granule (2：5：7) table in terms of keeping from ill weeds rice Leersia Sw
Reveal the superiority of brilliance, not only can effectively suppress the growth of malignant weed rice Leersia Sw and occur, mitigate the danger to paddy rice
Evil, while the harm of rice terrace malignant weed rice Leersia Sw can also be prevented and kill off effectively, increases production, increases income.
As can be seen here, the Herbicidal combinations in the range of certain dosage to rice safety and herbicidal performance is excellent,
With potential agricultural extension value.
Embodiment 9
Field control effectiveness test prevents and kill off direct sowing of rice field weed
Experiment is selected in Anhui Province Nanling County, experimental field rice varieties：Hybrid paddy rice；Planting patterns：Direct sowing of rice；Medication is gone through
History early stage is efficiently killed the cyanogen fluorine chlorine fluorine missible oil of barnyard grass agent 26% using market and prevented and kill off, and the barnyard grass in field, lady's-grass, eleusine indica are prevented and kill off thorough
Bottom, but it is not notable to field malignant weed rice Leersia Sw preventive effect, attempt being prevented and kill off with 10% metamifop missible oil again
Effect is still undesirable.To anaphase, rice Leersia Sw occurs paddy growth in section, and stolon constantly extends, growth vigor
Significantly, the reproductive growth of serious threat paddy rice.Insecticide spraying time, paddy growth anaphase, rice Leersia Sw occurs in section, crawls
More than stem 50cm.The Yi Evil diformazan isoproturons granule (2 of test medicine 14%：5：7),
Respondent and method：Observe within 7 days after medication each treatment agent on paddy growth situation influence and weeds it is aggrieved
Situation.30 days after medication, malignant weed rice Leersia Sw preventive effect is estimated.
The clomazone of table 4, pendimethalin and isoproturon ternary built are respectively processed 7 days after rice direct seeding field medication, 15 days, 30
Its field control effectiveness test result.
According to investigation, 7 days after paddy rice medication, 14% Yi Evil diformazan isoproturons granule (2 of the invention：5：7)
When usage amount is 500ga.i./667m2 to hybrid paddy rice security very well, paddy growth is normal, have no blade burn, turn to be yellow, it is withered
The anomaly such as wither.As can be seen here the present invention in the range of suitable dosage hybrid paddy rice safety.
As can be seen that 14% Yi Evil diformazan isoproturons of the invention from 30 days result of the tests after the crop field medication of table 4
Granule (2：5：7) effect is prevented and kill off with remarkable to rice terrace malignant weed rice Leersia Sw when usage amount is 500ga.i./667m2
Really, crop increasing production of rice, increase income.
As can be seen here, the Herbicidal combinations in the range of certain dosage to hybrid rice safety and herbicidal performance is excellent
It is different, with potential agricultural extension value.
During the patented invention, also many embodiments are numerous to list herein.
To sum up virulence test and field experiment are as a result, it was confirmed that the present invention contains clomazone, pendimethalin and isoproturon
Herbicidal combinations, are mainly used in preventing and kill off rice terrace annual grassy weeds, and there is outstanding preventive effect to imitate to field malignant weed rice Leersia Sw
Really, and to rice safety.Herbicidal combinations of the present invention have the mechanism of action unique, and dosage is low, the advantages of broad weed-killing spectrum.
So, the research and development and popularization of the Herbicidal combinations containing clomazone, pendimethalin and isoproturon of the invention have huge warp
Ji and social benefit.
Claims (5)
1. a kind of Herbicidal combinations, it is characterised in that：Including following active principle：Clomazone, pendimethalin and isoproturon, institute
The weight ratio of Shu clomazones, pendimethalin and isoproturon is（1-3）:（3-7）:（4-10）.
2. Herbicidal combinations according to claim 1, it is characterised in that：The clomazone, pendimethalin and isoproturon
Weight account for the 1-45% of composition total weight.
3. Herbicidal combinations according to claim 1, it is characterised in that：Described Herbicidal combinations can be processed as particle
Agent, wettable powder, dispersible the formulation that the suitable agricultural production such as oil-suspending agent, suspension emulsion is used.
4. Herbicidal combinations according to claim 1, it is characterised in that：Described Herbicidal combinations are used to prevent and kill off rice terrace
Weeds are applied.
5. Herbicidal combinations according to claim 4, it is characterised in that：Described Herbicidal combinations are annual for preventing and kill off
Weeds and malignant weed rice Leersia Sw.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107079917A (en) * | 2017-06-23 | 2017-08-22 | 浙江天丰生物科学有限公司 | Complex herbicidal composition |
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| CN107372562A (en) * | 2017-08-07 | 2017-11-24 | 安徽圣丰生化有限公司 | A kind of herbicidal composition of pendimethalin, clomazones and pyrazosulfuron |
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