CN105211080A - A kind of Herbicidal combinations - Google Patents
A kind of Herbicidal combinations Download PDFInfo
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- CN105211080A CN105211080A CN201410312540.3A CN201410312540A CN105211080A CN 105211080 A CN105211080 A CN 105211080A CN 201410312540 A CN201410312540 A CN 201410312540A CN 105211080 A CN105211080 A CN 105211080A
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- benzobicylon
- herbicidal combinations
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Abstract
What the present invention relates to is a kind of Herbicidal combinations.The invention still further relates to a kind of method controlling undesirable plant.The invention provides a kind of Herbicidal combinations, the active principle of described Herbicidal combinations comprises benzobicylon and bentazone active component, and both weight proportions are 1:100-100:1.Herbicidal combinations of the present invention is used for preventing and kill off broad-leaved section weeds, sedge weed, grassy weed, possesses cooperative gain effect.
Description
Technical field
What the present invention relates to is a kind of Herbicidal combinations.The invention still further relates to a kind of method controlling undesirable plant.
Background technology
Paddy rice is one of main cereal crops of China, plants on a large scale at home, and simultaneously, rice field crop smothering is expanding day in the production constantly expanded also, endangers also day by day serious.Weeds in paddy field kind is a lot, and national rice district about has weeds more than 200 to plant, and wherein generally occur, endanger serious main weeds and about have more than 40 to plant, therefore, paddy field weeding is a great problem in production.Chemical method weeding is the Main Means controlling weeds.But in recent years, because some weed killer herbicide kind large area are used alone, cause a lot of weeds to develop immunity to drugs.Meanwhile, grass when weeds occur is mutually complicated, and grassy weed, broad leaved weed, the mixed life of nutgrass flatsedge multiclass weeds, single variety weed killer herbicide uses can not solve farmland weed, all can show defect in a certain respect and limitation.
Benzobicylon (Benzobicylon), its chemical name is 3-(2-chloro-4(mesyl) benzoyl)-4-(thiophenyl)-two rings the pungent-3-alkene of 3.2.1}-2-ketone, its structural formula is:
Benzobicylon is the albinism paddy field post-emergence herbicide of double-octane class of novelty of the research of Japanese SDS biotech firm, exploitation.Its mechanisms is the synthesis suppressing carotenoid in weeds photosynthetic pigment, and its content is declined, thus destroys photosynthesis, makes weeds albefaction and death.Benzobicylon is to barnyard grass, and Monochoria vaginalis, Procumbent Falsepimpernel, the difficulty such as firefly Lin, Herba Cyperi Glomerati, needle spikesedge herb, cyperus iria, fishscale bamboo grass, rice shape not plump shell grass, false rice, agrostis stolonifera, potamogeton grass is cut weeds and all had suitable preventive effect.
Bentazone (Bentazone), chemical name is 3-(1-Methylethyl)-1H-2,1,3-benzothiadiazine-4(3H)-one-2,2-dioxide, English general Bentazone by name, its structural formula is:
Bentazone is contact killing type tool optionally herbicide after seedling, for cauline leaf process in seedling stage, is worked by blade contact.When using in dry land, bentazone is first transmitted to inhibited photosynthesis in chloroplast by blade face infiltration.When using in paddy field, bentazone not only by blade face infiltration but also by root absorption, was transmitted to cauline leaf, strongly hindered weeds photosynthesis and water metabolism, caused nutrition hungry, physiological function was lacked of proper care and lethal.Active ingredient is detoxified to the weak glycoconjugates metabolism of activity in tolerable crop body, and to crop safety, dispenser is after 6 ~ 18 weeks, and bentazone can be decomposed by the microorganisms in soil.Be mainly used in preventing and kill off cereal crop, cotton, peanut, soybean, sweet potato, tea place, careless pasture, rape and pea Tanaka sedge family and broad leaved weed, to flat bar Fischer grass, Herba Cyperi Glomerati, cyperus iria, difformed galingale herb, rhizoma alismatis, needle spikesedge herb, firefly Lin, Monochoria vaginalis, Monochoria korsakowii, mexicana, bur beggar-ticks, water starwort, dragon's tongue, cyperus iria L. rhizoma scirpi, angustifolia arrowhead herb, pondweed, clearvers, shepherd's purse, field thistle, Siberian cocklebur, the rhizome of nutgrass flatsedge, acalypha copperleaf, lamb's-quarters, thorn amaranth and branch amaranth, hold back broad leaved weed and the nutgrass flatsedges etc. such as blue dish, grass of meadow rue, kitchen garden effectively.
In actual use, bentazone is effective to the broad leaved weed in rice field and sedge weed, but to grassy weed as barnyard grass is invalid; And benzobicylon is to paddy field barnyard grass, and the annual broadleaf weed such as Monochoria vaginalis, Procumbent Falsepimpernel class, firefly Lin, Herba Cyperi Glomerati, needle spikesedge herb Deng Jumang cyperus iria section weeds, the difficulty such as fishscale bamboo grass, rice shape not plump shell grass, false rice, agrostis stolonifera, potamogeton grass is cut weeds and is all had suitable preventive effect.
Summary of the invention
The present invention seeks to provide a kind of Herbicidal combinations for above-mentioned weak point, this weed killer herbicide, by benzobicylon and bentazone are carried out binary built, makes obtained Herbicidal combinations achieve synergistic effect preventing and kill off in the difficult control of cutting weeds such as broad leaved weed, sedge weed, grassy weed.
The present invention, by benzobicylon and bentazone being combined, obtains the Weeds distribution level needed for technical staff in a particularly advantageous manner, even comprises some weeds kind unmanageable.And, use the amount of application that the present invention's combination significantly can reduce a certain component in combination, therefore for user provides more economical occupation mode.
In some cases, shown compared with using separately, herbicidal active component is more effective in combination, and this is called " synergy "." synergy " is two or more factor interactions, makes effective than desired by the response of using each factor respectively of effect upon combination.The present invention is based on following discovery: benzobicylon and the bentazone of its independent herbicidal efficacy known demonstrate synergistic effect when combined administration.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Herbicidal combinations, comprise benzobicylon and bentazone as active component, described benzobicylon and bentazone weight proportion are 1:100-100:1.
Further, benzobicylon and bentazone weight proportion are 1:50-50:1, and preferred 1:25-25:1, is more preferably 1:10-10:1, more preferably 1:5-5:1.
A kind of Herbicidal combinations, comprises benzobicylon and bentazone active component, filler and/or surfactant.
In described Herbicidal combinations, benzobicylon and bentazone active component content account for the 5%-90% of described Herbicidal combinations.
In described Herbicidal combinations, benzobicylon and bentazone active component content account for described Herbicidal combinations 20%-80%.
In described Herbicidal combinations, benzobicylon and bentazone active component content account for described Herbicidal combinations 30%-60%.
The formulation of described Herbicidal combinations is wetting powder, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, suspension emulsion, water dispersible granules, water-soluble granule, aqua, microcapsule suspension-suspendinagent agent, ultra low volume liquids.
Described Herbicidal combinations is preventing and kill off the application in broad leaved weed, sedge weed, grassy weed.
Control a method for undesirable plant, comprising: (i) before undesirable plant germination (before bud); (ii) after undesirable plant germination (after bud), or (iii) (i) and (ii) time, the described Herbicidal combinations of herbicidally effective amount is applied on the growth place of undesirable plant or leaf or stem.
A kind of Herbicidal combinations of the present invention, this weed killer herbicide, by benzobicylon and bentazone are carried out binary built, makes obtained Herbicidal combinations achieve cooperative synergism effect preventing and kill off in the difficult control of cutting weeds such as broad leaved weed, sedge weed, grassy weed.And, use the amount of application that the present invention's combination significantly can reduce a certain component in combination, therefore for user provides more economical occupation mode.
Embodiment
Protection crops are continue produced problem in agricultural from the weeds of crop growth encroach on other vegetation always.For contributing to resisting this problem, the researcher in synthetic chemistry field has prepared chemicals and the chemicals of this obnoxious growth of multiple effective control.Very eurypalynous chemical herbicide is open in the literature, and a large amount of chemical herbicide uses in business.
The combination of active principles of different agricultural chemicals is made mixture, is current development novel pesticide and the effective mode of one of preventing and treating agriculturally resistant weed.After the pesticide activity component combination of different cultivars, usually show three kinds of type of action: summation action, synergistic effect and antagonism.But be specially which kind of effect, unpredictable.Surprisingly, the combination of active component has exceeded the additive effect to the weeds that will control desired in principle, and the sphere of action therefore particularly expanding these two kinds of active components both ways (namely, show synergistic activity): first, the rate of application of individualized compound reduces and maintains good exposure level simultaneously; Secondly when the independent material within the scope of low rate of application is when agronomic point becomes useless, composition obtains high-caliber Weeds distribution.
Super adding and (=synergy) effect can be produced during the combined administration of benzobicylon and bentazone.Described synergistic effect should be able to reduce the rate of application of each active substance, the drug effect improved under identical rate of application, prevent and treat still cannot prevent and treat so far species, extend administration period, the number of times used separately needed for minimizing.Therefore, for user, be resist system with more favourable weeds in ecology economically.This activity especially can reduce amount of application, control the broad-leaved section of more wide spectrum, grass family, sedge weed, compensate for the active leak of antagonism weed population, more rapidly with active more reliably, the longer lasting period, only use once or several times and can control noxious plant completely and extend the working life of active component in combination.
In weeds in field control, need above-mentioned characteristic with the competition making crops break away from undesirable plant, and/or increase yield.In above-mentioned characteristic, the present invention combines significantly beyond prior art.
The invention provides a kind of Herbicidal combinations, comprise benzobicylon and bentazone active component, described benzobicylon and bentazone active component weight proportion are 1:100-100:1, preferred 1:50-50:1, preferred 1:25-25:1, is more preferably 1:10-10:1, more preferably 1:5-5:1.
A kind of Herbicidal combinations, comprises benzobicylon and bentazone active component, filler and/or surfactant.
In described Herbicidal combinations, benzobicylon and bentazone active component content account for the 5%-90% of described Herbicidal combinations, preferred 20%-80%, more preferably 30%-60%.
According to the present invention, term " filler " refers to can be combined with reactive compound or combine to make it be easier to the organic or inorganic compound being administered to the natural of object (such as plant, crop or careless class) or synthesizing.Therefore, described filler is preferably inertia, at least to should be agricultural acceptable.Described filler can be solid or liquid.
Be applicable to solid-filling agent of the present invention to have: phyteral powdery type (the such as particle of soybean meal, starch, grain dust, wood powder, bark powder, sawdust, walnut shell powder, wheat bran, cellulose powder, coconut husk, corncob and tobacco stem, extract the residue etc. after plant essence), paper, sawdust, pulverize synthesized polymer body, clay class (such as kaolin, bentonite, acid china clay etc.), the talcum powder class of synthetic resin etc.Silica (such as diatomite, silica sand, mica, moisture silicic acid, calcium silicates), active carbon, natural mineral matter class (float stone, attapulgite and zeolite etc.), fire chemical fertilizer, the clay fertilizer of inorganic mineral powder, ammonium sulfate, ammonium phosphate, urea, greening ammonium etc. of diatomite, sand, plastics medium etc. (such as polyethylene, polypropylene, polyvinylidene chloride etc.), potassium chloride, calcium carbonate, calcium phosphate etc., these materials can be used alone or two or more is used with.
Be applicable to liquid filling agent of the present invention to have, such as water, alcohol type (such as methyl alcohol, ethanol, isopropyl alcohol, butanols, ethylene glycol etc.), ketone (such as acetone, methyl ethyl ketone, isobutyrone, cyclohexanone etc.), ethers (such as ether, dioxanes, methylcellulose, oxolane etc.), aliphatic hydrocarbon class (such as kerosene, mineral wet goods), aromatic hydrocarbons class (such as benzene, toluene, dimethylbenzene, solvent naphtha, Fluhyzon, chlorinated aromatic hydrocarbons, chlorinated aliphatic hydrocarbon, chlorobenzene, Deng), halogenated hydrocarbon class, amide-type, sulfone class, dimethyl sulfoxide (DMSO), mineral and vegetable oil, animal wet goods.
It is generally contemplated that one or more surfactants are introduced in Herbicidal combinations of the present invention.Surfactant can be anion, cationic or non-ionic and can be used as emulsifier, dispersant or for other objects.
The emulsifier being applicable to Herbicidal combinations of the present invention can be anion and/or non-example type emulsifier, such as alkylphenol polyoxyethylene, alkylphenol-polyethenoxy polyethenoxy ether, Ben-zylphenol Polyoxyethyl Ether, polyoxyethylene fatty acid ester, polyoxyethylene aliphatic alcohol ether, polyoxyethylene fatty amine, alkyl phenol polyglycol ether etc.
The dispersant being applicable to Herbicidal combinations of the present invention can be alkylnaphthalene sulfonate, two (alkyl) naphthalenesulfonate formaldehyde condensation compound, naphthalene sulfonic acid-formaldehyde condensation product, alkylphenol-polyethenoxy based phosphates, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, alkylphenol polyoxyethylene, castor oil ethylene oxide adduct, ethylene oxide-propylene oxide block copolymer, alkylphenol polyoxyethylene formaldehyde condensation products, octylphenol polyethylene oxyethylene group ether sulfate and methylcellulose.Such as sodium lignin sulfonate, calcium lignosulfonate, methyl naphthalene sulfonate formaldehyde condensate, naphthalenesulfonic acid-formaldehyde condensate, methanonaphthalene sodium sulfonate etc.
Other auxiliary materials being generally used for Pestcidal compositions comprise solubilizer, defoamer, masking agent, neutralizer and buffer solution, penetrant, sticker, antifreezing agent, antibacterial agent, colouring agent etc.
The wherein optional spent glycol of antifreezing agent, propane diols, glycerine, sorbierite.Deflocculant as suspension product can use the adjuvant of such as naphthalene sulfonic acid polymer, polymeric phosphate etc.
Silicone defoaming agent can be used as defoamer.
Operable colouring agent, such as inorganic pigment, as iron oxide, titanium oxide and Prussian blue; And organic pigment/dyestuff: alizarin dyes, azo dyes and metallized phthalocyanine dye; And trace element, such as molysite, manganese salt, boron salt, mantoquita, cobalt salt, molybdenum salt and zinc salt.
Any conventional form can use Herbicidal combinations of the present invention.The blade face Exemplary dosage forms of premix composition is:
GR: granule
WP: wetting powder
WG: water dispersibles granula
SG: soluble granule
SL: soluble concentrate
EC: missible oil
EW: emulsion, aqueous emulsion
ME: microemulsion
SC: suspending agent
CS: microcapsule suspending agent
OD: oil-based suspension
SE: suspension emulsion
FS: seed coat agent
The preferred formulation of the present invention can be wetting powder, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, suspended emulsion, water dispersible granules, microcapsule suspension-suspendinagent agent, water-soluble granule, aqua, ultra low volume liquids.
The Exemplary dosage forms being applicable to bucket mixing composition is solution, dilution emulsion, suspending agent or its mixing and pulvis.Usually, bucket mixing composition be with solvent (as water) dilution containing different agricultural chemicals, and one or more premix compositions of optionally auxiliary agent further.
The application of described Herbicidal combinations in the undesirable plant of control.Undesirable plant comprises grass family, broad-leaved section and/or sedge weed.Undesirable plant comprises, Stellaria, bean cotyledon Lepidium, Agrostis, knotgrass, Avena, setaria, Europe sinapsis alba genus, Lolium, Solanum, Brome, amur foxtail genus, Matricaria, Tong fiber crops genus, chrysanthemum harvest spp, Xanthium, Amaranthus, Chenopodium, Ipomoea, crowndaisy chrysanthemum genus, Bedstraw, Viola and Veronica.Especially flat bar rattan grass, needle spikesedge herb, Japanese Fischer grass, Herba Cyperi Glomerati, cyperus iria, difformed galingale herb, barnyard grass, rice barnyard grass, lady's-grass, eleusine indica, moleplant seed, green foxtail, annual bluegrass, needle spikesedge herb, firefly Lin, Monochoria vaginalis, mexicana, water starwort, dragon's tongue, cyperus iria L. rhizoma scirpi, angustifolia arrowhead herb, pondweed, clearvers, shepherd's purse, field thistle, Siberian cocklebur, the rhizome of nutgrass flatsedge, acalypha copperleaf, lamb's-quarters, thorn amaranth, branch amaranth, hold back blue dish, grass of meadow rue, kitchen garden etc., Procumbent Falsepimpernel, short Brittle Falsepimpernel Herb, Monochoria korsakowii etc.
Herbicidal combinations of the present invention can use on the farmland of such as cultivating following crop:
Crops: corn, rice, wheat, barley, rye, oat, Chinese sorghum, cotton, soybean, peanut, buckwheat, beet, rape, sunflower, sugarcane, tobacco etc.
Vegetables: solanaceous vegetable (eggplant, tomato, green pepper, capsicum, potato etc.), cucurbitaceae vegetable (cucumber, pumpkin, little cucumber, watermelon, muskmelon etc.), brassicaceous vegetable (radish, turnip, horseradish, kohlrabi, Chinese cabbage, cabbage, leaf mustard, broccoli, cauliflower etc.), composite vegetable (burdock, crowndaisy chrysanthemum, lettuce etc.), liliaceous vegetable (green onion, onion, garlic, asparagus etc.), Umbelliferae vegetables (carrot, ocean celery, celery, the U.S. eats celery etc.), goosefoot vegetable (spinach etc.), Labiatae vegetables (purple perilla, peppermint etc.), strawberry, sweet potato, Chinese yam, taro etc.,
Fruit tree: pomaceous fruit (apple, European pear, Japanese pear, Hua Li etc.), kernel approaches (peach, Lee, nectarine, plum, cherry, apricot, plum etc.), citrus (orange, lemon, bitter orange, grapefruit etc.), nut fruits (Chinese chestnut, walnut, almond, American pistachios, cashew nut etc.), soft fruits (blueberry, tongue are mould, blackberry, blueberry, wood are mould), grape, persimmon, olive, loquat, banana, coffee bean, coconut, coconut oil etc.;
Lawn: Korea lawn grass class (Zoysia sinica, Korea's grass etc.), annual bluegrass class (kentucky blue grass, rough bluegrass etc.), fescue grass class (Festuca Arundinacea etc.), orchardgrass, timothy grass etc.;
Other: flowers class (rose, China pink, chrysanthemum, tulip, rough gentian, orchid etc.), biofuel plant (manioca, safflower, Chinese silvergrass, mestha, cassava etc.), ornamental foliage plant etc.
Also genetically modified crops are comprised in above-mentioned crop.
Herbicidal combinations of the present invention has selectivity for paddy rice.Thus, Herbicidal combinations of the present invention is suitable as paddy field weed-killer composite.
The present invention also provides a kind of method controlling undesirable plant, comprising: (i) before undesirable plant germination (before bud); (ii) after undesirable plant germination (after bud), or (iii) (i) and (ii) time, the described Herbicidal combinations of herbicidally effective amount is applied on the growth place of undesirable plant or leaf or stem.
When Herbicidal combinations of the present invention is used before undesirable plant germination, can prevent undesirable plant emergence or undesirable plant growth to cotyledon period from then stopping growing completely and death completely after 3-4 week.
When Herbicidal combinations of the present invention is applied to green plant part after undesirable plant germination, the growth of undesirable plant can be stoped equally rapidly and effectively after treatment.After a period of time, undesirable plant keeps the vegetative period existed in use, more or less die off rapidly, therefore use Herbicidal combinations of the present invention by this way and can prevent from rapidly and enduringly reducing the loss of crop quality and quantity to the competition of undesirable plant that crop is harmful to simultaneously.
Herbicidal combinations of the present invention can the part individually or as multicomponent weeding system be used.Herbicidal combinations of the present invention can be co-administered with the undesirable plant controlling wider scope with one or more other weed killer herbicides.When with other weed killer herbicide conbined usage, composition can with other herbicide formulation, to mix with other weed killer herbicide or with other weed killer herbicide sequential application.
Rate of application also can change in wide boundary, and depends on that soil property, application process are (before bud or after bud; Seed dressing; Be applied in seed furrow; No-tillagely to use), effect plant, the weeds that need control, weather conditions, and other factors of being arranged by application process, specific active ingredient combinations, time of application and target.In practicing, provide about 0.001kg/ha-1.00kg/ha, the rate of application of the active component of preferred 0.01kg/ha-0.075kg/ha is suitable.
Particularly, in weed control methods of the present invention, first the real area of the crop production environment of weed control is carried out as required, and the condition of production of weeds in above-mentioned environment, estimate the amount of the weed killer herbicide roughly needed, choose arbitrarily wetting powder or missible oil or suspending agent or dispersible the weed killer herbicide of oil-suspending agent or seed coat agent or microemulsion or aqueous emulsion or water dispersible granules, with thin up, certain density dilution is become to Herbicidal combinations, is finally applied to undesirable plant or its location.
According to formulation properties, application process can be selected from according to expection object and popular environment, as blade face, soak into, spray, dust, scattering selects.Herbicidal combinations of the present invention can pass through to use conventional ground or high-altitude duster, sprayer and pellet applicator, by being added into irrigation water and being applied to undesirable plant or its location by other conventional method well known by persons skilled in the art.
Herbicidal combinations of the present invention is used for the comprehensive regulation of weeds, and special antagonism weed control is remarkably productive, substantially can realize the effect of the whole Growing season cover crop of a drug; Can be improvement on the other hand and optimize farmland production environment and play effectiveness, alleviate the environmental pressure of agricultural production.
Example of formulations
Embodiment 1:25% benzobicylon+1% bentazone oil-suspending agent
Benzobicylon 25%
Bentazone 1%
Methyl naphthalene sulfonate formaldehyde condensate 10%
Bentonite 1%
Glycerine 5%
Corn oil complements to 100%
Active component, dispersant, wetting agent and each component of the corn wet goods ratio according to formula is mixed, after grinding and/or high speed shear, obtains 25% benzobicylon+1% bentazone oil-suspending agent.
Embodiment 210% benzobicylon+2% bentazone wetting powder
Benzobicylon 10%
Bentazone 2%
Lauryl sodium sulfate 10%
Sodium lignin sulfonate 5%
White carbon 10%
Kaolin complements to 100%
By the proportional components mixing by formula such as active component, various auxiliary agent and filler, after ultra-fine pulverizer disintegrating, namely obtain 10% benzobicylon+2% bentazone wetting powder.
Embodiment 31% benzobicylon+50% bentazone soluble powder
Benzobicylon 1%
Bentazone 50%
Calcium dodecyl benzene sulfonate 1%
Sodium lignin sulfonate 2%
Sucrose complements to 100%
By the proportional components mixing by formula such as active component, various auxiliary agent and filler, after ultra-fine pulverizer disintegrating, namely obtain 1% benzobicylon+50% bentazone soluble powder.
Embodiment 40.1% benzobicylon+1% bentazone soluble granula
Benzobicylon 0.1%
Bentazone 1%
Sodium lignin sulfonate 4%
Lauryl sodium sulfate 5%
Urea 5%
Sucrose complements to 100%
Active component, dispersant, wetting agent, disintegrant and the filler ratio in formula is mixed, becomes wetting powder through air-flow crushing, then add a certain amount of water mixing extruding and make material.0.1% benzobicylon+1% bentazone soluble granula is obtained after drying screening.
Embodiment 55% benzobicylon+0.1% bentazone missible oil
Benzobicylon 5%
Bentazone 0.1%
Ethoxylated castor oil 5%
Calcium dodecyl benzene sulfonate 3%
Dimethyl sulfoxide (DMSO) complements to 100%
Mentioned component is proportionally prepared, stirs and obtain homogeneous phase.
Embodiment 610% benzobicylon+0.1% bentazone wetting powder
Benzobicylon 10%
Bentazone 0.1%
Lauryl sodium sulfate 10%
Sodium lignin sulfonate 5%
White carbon 10%
Kaolin complements to 100%
Said components is mixed in proportion, and grinds, pulverize, be prepared into wetting powder.
Embodiment 740% benzobicylon+4% bentazone water dispersible granules
Benzobicylon 40%
Bentazone 4%
MODIFIED LIGNOSULPHONATE 5%
Lauryl sodium sulfate 5%
Urea 5%
Kaolin complements to 100%
Benzobicylon active component, dispersant, wetting agent, disintegrant and the filler ratio in formula is mixed, becomes wetting powder through air-flow crushing; Add bentazone again to mix; Add a certain amount of water mixing extruding again and make material.40% benzobicylon+4% bentazone water dispersible granules is obtained after drying screening.
Embodiment 80.1% benzobicylon+10% bentazone aqueous emulsion
Oil phase:
Benzobicylon 0.1%
Methyl oleate 10%
Ethoxylated castor oil 5%
Aqueous phase:
Bentazone 20%
The sodium salt 1% of the naphthalene sulfonic acids-formaldehyde condensation products of sulfonation
Water complements to 100%
Benzobicylon is dissolved in methyl oleate, adds ethoxylated castor oil and obtain oil phase; According to formula by the sodium salt of bentazone naphthalene sulfonic acids-formaldehyde condensation products, water, mix and obtain aqueous phase; Under agitation oil phase is added aqueous phase and obtain aqueous emulsion.
Embodiment 95% benzobicylon+15% bentazone wetting powder
Benzobicylon 5%
Bentazone 15%
Sodium lignin sulfonate 1%
NaLS 2%
The silicic acid 1% of high degree of dispersion
Kaolin complements to 100%
Said components is mixed in proportion, and grinds, pulverize, be prepared into wetting powder.
Embodiment 105% benzobicylon+25% bentazone coated granule
Benzobicylon 5%
Bentazone 25%
Polyethylene glycol 3%
The silicic acid 1% of high degree of dispersion
Calcium carbonate complements to 100%
In a mixer, by levigate active component even spread on the carrier soaked by polyethylene glycol.Dust-free coated granules agent can be obtained in this way.
Embodiment 111% benzobicylon+5% bentazone wetting powder
Benzobicylon 1%
Bentazone 5%
Lauryl sodium sulfate 1%
Sodium lignin sulfonate 1%
Kaolin complements to 100%
Said components is mixed in proportion, and grinds, pulverize, be prepared into wetting powder.
Embodiment 1220% benzobicylon+10% bentazone extrudes granule
Benzobicylon 20%
Bentazone 10%
Sodium lignin sulfonate 4%
Carboxymethyl cellulose 2%
Kaolin complements to 100%
Active component is mixed with auxiliary agent and grinds, mixture water-wet.This mixture is extruded, then dry in the air stream.
Embodiment 131% benzobicylon+25% bentazone aqua
Benzobicylon 1%
Bentazone 25%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Above-mentioned each component is mixed in proportion, is prepared into aqua.
Embodiment 140.1% benzobicylon+10% bentazone microcapsule suspension-suspendinagent agent
ATLOX
TM4913,4%
Citric acid 0.05%
Catalyzer 0.1%
Water 13%
Bentazone 10%
PAPI1.35%
SOLVESSO
TM20010%
ATLOX
TM491316%
Dispersant LFH0.3%
Defoamer 0.16%
Urea 8.4%
Benzobicylon 0.1%
Water complements to 100%
By poly methylene poly phenyl poly isocyanate (PAPI), benzobicylon, SOLVESSO
tM200 oil phases formed add containing ATLOX
tMin the aqueous solution of 4913, form emulsion.Then heat and be incubated 50
ocatalyst reaction is added 2 hours under C.The microcapsules of bentazone is obtained after cooling.
ATLOX
tM4913, dispersant LFH, defoamer, urea, bentazone and water mix in proportion, and obtain aqua.
The benzobicylon microcapsules obtained is added in the aqua of bentazone, stirs and obtain 0.1% benzobicylon+10% bentazone microcapsule suspension-suspendinagent agent.
Embodiment 1510% benzobicylon+50% bentazone aqueous emulsion
Benzobicylon 10%
Bentazone 50%
SOLVESSO
TM20010%
Ethoxylated castor oil 4%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 5%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Benzobicylon is dissolved in SOLVESSO
tMin 200, add ethoxylated castor oil, obtain the missible oil of benzobicylon;
By bentazone, fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium, above-mentioned each component mixes in proportion, and is prepared into aqua.
Oil phase containing benzobicylon is joined in the aqua containing bentazone, obtains aqueous emulsion.
Embodiment 161% benzobicylon+4% bentazone missible oil
Benzobicylon 1%
Bentazone 4%
Ethoxylated castor oil 5%
Calcium dodecyl benzene sulfonate 3%
SOLVESSO
tM200 complement to 100%
By above-mentioned each component mixing, be stirred to and obtain transparent homogeneous phase.
Embodiment 1720% benzobicylon+70% bentazone wetting powder
Benzobicylon 20%
Bentazone 70%
Sodium lignin sulfonate 1%
NaLS 2%
The silicic acid 1% of high degree of dispersion
Kaolin complements to 100%
Said components is mixed in proportion, and grinds, pulverize, be prepared into wetting powder.
Embodiment 1820% benzobicylon+60% bentazone water dispersible granules
Benzobicylon 20%
Bentazone 60%
MODIFIED LIGNOSULPHONATE 5%
Lauryl sodium sulfate 5%
Urea 5%
Kaolin complements to 100%
Active component, dispersant, wetting agent and the filler ratio in formula is mixed, becomes wetting powder through air-flow crushing; Add a certain amount of water mixing extruding again and make material.20% benzobicylon+60% bentazone water dispersible granules is obtained after drying screening.
Embodiment 1950% benzobicylon+50% bentazone
Benzobicylon 50%
Bentazone 50%
Benzobicylon, bentazone are proportionally mixed.
In above embodiment, proportioning is weight per distribution ratio.
In above-mentioned example of formulations 1-embodiment 19, individually disclose the present invention using benzobicylon and bentazone as the different dosage form of the weed killer herbicide of active ingredient, but the present invention is not limited to above-described embodiment, in the embodiment that other are feasible, in composition, the proportioning of each chemical composition, auxiliary agent, filler all can change.
In order to embody the weed control efficacy of weed killer herbicide of the present invention better, be described below with reference to specific experiment data.
Biological test example
When the effect of weed killer herbicide exceedes the summation of the effect when each component is used separately, there is synergistic function.The predictive role of the particular combination of two kinds of components can use so-called " Colby formula " (see S.R.Colby, " CalculatingSynergisticandAntagonisticResponsesofHerbicid eCombinations ", Weeds1967,15,20 ~ 22) calculate as follows: if
X is the activity when using the component (a) that consumption is mppm for mg/ha or concentration;
Y is the activity when using the component (b) that consumption is nppm for ng/ha or concentration, is expressed as the percentage accounting for untreated control;
E is when using consumption for activity when m and ng/ha or the concentration component (a) that is m and nppm and (b),
So
If the activity of actual observation (O) is greater than expection active (E), so said composition super add and, namely there is synergistic effect.
Inventor is by a large amount of screening tests, the different ratio of component (a) and component (b) test and preventive effect analysis have been carried out a large amount of, find in certain ratio range, the weed killer herbicide obtained has synergistic effect, and be not only the simple addition of two kinds of medicaments, be illustrated with following biologicall test example.
test before seedling:
Under greenhouse experiment, test plant is seeded in seedling alms bowl.Use standard soil as cultivation matrix.In the seedling last stage, weed killer herbicide is administered to soil surface separately or as a mixture.Consumption depends on determined optium concentration under field or greenhouse experiment.In post-evaluation in 2 ~ 4 weeks test, (100% effect=plant is completely dead; 0% effect=plant-less toxicity effect).The combination table of benzobicylon and bentazone reveals than using separately better preventive effect in this test, shows obvious synergistic effect.
When weed killer herbicide of the present invention is used before rudiment, can prevent weeds from emerging completely or then weed growth to cotyledon period stops growing and completely dead after 3 ~ 4 weeks.
test after seedling:
Test: carry out Herbicidal Testing Trials for dissimilar weeds (barnyard grass, false rice, Monochoria vaginalis, angustifolia arrowhead herb, Procumbent Falsepimpernel, firefly Lin, pondweed, convexutricle sedge herb).
Test method: load the paddy soils that the degree of depth is about 8cm in seedling alms bowl (diameter 8cm × degree of depth 12cm), to add water in this basin and in addition smooth, left standstill three days, the depth of 0.5cm is being about, sowing barnyard grass, false rice, Monochoria vaginalis, angustifolia arrowhead herb, Procumbent Falsepimpernel, firefly Lin, pondweed, convexutricle sedge herb apart from soil surface.Add water till the degree of depth apart from soil surface 3cm.One period of predetermined time is planted under irrigation conditions.When plant reached for 3 ~ 4 leaf stage, transferred to by the seedling alms bowl of the predetermined number growing plant in a square plastic basin, being filled to wherein is highly 3cm.In the test plants using back type sprayer to be administered to separately or as a mixture by weed killer herbicide to be under water saturation soil condition.Consumption depends on determined optium concentration under field condition.(100% effect=plant is completely dead in chemical treatment post-evaluation in 3 ~ 5 weeks test; 0% effect=plant-less toxicity effect).The mixture used in this test shows good result.
Three kinds of reagent are prepared: 1, benzobicylon according to constant weight percentage; 2, bentazone; 3, benzobicylon+bentazone.Afterwards by above-mentioned each reagent dilute with water, obtain medicament dilution.After the medicament dilution process regular hour, observe the herbicidal effect to barnyard grass, false rice, Monochoria vaginalis, angustifolia arrowhead herb, Procumbent Falsepimpernel, firefly Lin, pondweed, convexutricle sedge herb respectively.
The herbicidal effect to Monochoria vaginalis is observed after process surrounding
Herbicidal effect to angustifolia arrowhead herb after process surrounding
Herbicidal effect to barnyard grass after process surrounding
Herbicidal effect to firefly Lin after process surrounding
Herbicidal effect to convexutricle sedge herb after process surrounding
Herbicidal effect to pondweed after process surrounding
Herbicidal effect to Procumbent Falsepimpernel after process surrounding
Herbicidal effect to false rice after process surrounding
Can find out according to result of the test, the herbicidal effect of benzobicylon and bentazone combination obviously uses benzobicylon more separately or bentazone is better, possesses obvious gain effect, and keep higher activity of weeding under the active ingredient of low usage amount; In addition, two kinds of herbicidal constituents are comparatively used separately in wherein any one composition, there is wider herbicide spectrum, can be used for the comprehensive regulation of weeds, special antagonism weed control is remarkably productive, save agricultural workforce's cost, substantially can realize the effect of the whole Growing season cover crop of a drug; Can play effectiveness for improving and optimize farmland production environment, alleviate the environmental pressure of agricultural production.
Claims (11)
1. a Herbicidal combinations, is characterized in that, comprises benzobicylon and bentazone active component, and described benzobicylon and bentazone weight proportion are 1:100-100:1.
2. Herbicidal combinations according to claim 1, is characterized in that, described benzobicylon and bentazone weight proportion scope are 1:50-50:1.
3. Herbicidal combinations according to claim 1, is characterized in that, described benzobicylon and bentazone weight proportion are 1:25-25:1.
4. Herbicidal combinations according to claim 1, is characterized in that, described benzobicylon and bentazone weight proportion are 1:10-10:1.
5. Herbicidal combinations according to claim 1, is characterized in that, described benzobicylon and bentazone weight proportion are 1:5-5:1
Herbicidal combinations according to claim 1, is characterized in that, comprises benzobicylon and bentazone active component, filler and/or surfactant.
6. Herbicidal combinations according to claim 1, it is characterized in that, formulation is wetting powder, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, suspension emulsion, water dispersible granules, soluble granula, aqua, microcapsule suspension-suspendinagent agent, ultra low volume liquids.
7. Herbicidal combinations according to claim 1, is characterized in that, benzobicylon and bentazone active component content account for the 5%-90% of described Herbicidal combinations.
8. Herbicidal combinations according to claim 1, is characterized in that, benzobicylon and bentazone active component content account for the 20%-80% of described Herbicidal combinations.
9. Herbicidal combinations according to claim 1, is characterized in that, benzobicylon and bentazone active component content account for the 30%-60% of described Herbicidal combinations.
10. Herbicidal combinations according to claim 1 is preventing and kill off the application in broad-leaved section weeds, sedge weed, grassy weed.
The method of 11. 1 kinds of undesirable plants of control, is characterized in that, comprising: (i) before undesirable plant germination (before bud); (ii) after undesirable plant germination (after bud), or (iii) (i) and (ii) time, the Herbicidal combinations of the claim 1 of herbicidally effective amount is applied on the growth place of undesirable plant or leaf or stem.
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Cited By (2)
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| CN111387198A (en) * | 2020-04-17 | 2020-07-10 | 江苏瑞邦农化股份有限公司 | Weeding composition containing bentazone, oxaziclomefone and benzobicyclon and application thereof |
| CN118177208A (en) * | 2024-05-20 | 2024-06-14 | 安达市海纳贝尔化工有限公司 | High-quality bentazone powder and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111387198A (en) * | 2020-04-17 | 2020-07-10 | 江苏瑞邦农化股份有限公司 | Weeding composition containing bentazone, oxaziclomefone and benzobicyclon and application thereof |
| CN111387198B (en) * | 2020-04-17 | 2022-05-03 | 江苏瑞邦农化股份有限公司 | Weeding composition containing bentazone, oxaziclomefone and benzobicyclon and application thereof |
| CN118177208A (en) * | 2024-05-20 | 2024-06-14 | 安达市海纳贝尔化工有限公司 | High-quality bentazone powder and preparation method thereof |
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