CN103210944A - Compound herbicide composition - Google Patents
Compound herbicide composition Download PDFInfo
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- CN103210944A CN103210944A CN2013101568614A CN201310156861A CN103210944A CN 103210944 A CN103210944 A CN 103210944A CN 2013101568614 A CN2013101568614 A CN 2013101568614A CN 201310156861 A CN201310156861 A CN 201310156861A CN 103210944 A CN103210944 A CN 103210944A
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- pyrazosulfuron
- herbicidal combinations
- penoxsuam
- azoles humulone
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Abstract
The invention provides a compound herbicide composition. The compound herbicide composition comprises a first active ingredient, a second active ingredient and a third active ingredient, wherein the first active ingredient is penoxsulam; the second active ingredient is carfentrazone-ethyl; the third active ingredient is pyrazosulfuron-ethyl; and the weight percent ratio of the three active ingredients is (0.1-20):(0.1-20):(0.1-20). By carrying out ternary compounding on penoxsulam, carfentrazone-ethyl and pyrazosulfuron-ethyl, the obtained new composition has beneficial effects on control of weeds in rice fields, reduces the application dosage of active compounds, expands the weed-controlling spectrum and does not increase the phytotoxicity to crops unacceptably.
Description
Technical field
The present invention relates to a kind of novel built Herbicidal combinations, relate in particular to a kind of ternary built, be applied to paddy rice, the novel built Herbicidal combinations between wheat, corn field.
Background technology
Paddy rice is one of world's staple food crop, and near in the world half population all is food with rice, produces each continent that spreads all over except that south, the arctic; 20 end of the centurys, about 4,000 hundred million kilograms of world's rice annual production average out to, about 1.45 hundred million hectares of cultivated area.In rice in China is one of important crops, and the rice in China sowing area accounts for 1/4 of national cereal crops, annual about 3,500 ten thousand hectares, and output accounts for 50% of total grain output.No matter cultivated area or output all rank first in Chinese cereal crops.
The paddy field with water direct seeding or direct-sowing dry is economized in the rice field, particularly Zhejiang of all rice workspaces of China, Jiangxi, Jiangsu, Anhui etc., all has a large amount of weeds to take place; Paddy rice all has plantation all over China, weeds in paddy field is of a great variety, and various places rice district weeds kind has nothing in common with each other.According to statistics, kind surplus the weeds that national rice field constitutes harm have 200, wherein the most common, harm is heavier have 40 surplus kind.It is documented that crop smothering (2～5 grades) crop smothering area more than medium in national rice field reaches 1546.7 ten thousand hm
2, accounting for 46% of total cultivated area, (4～5 grades) area of wherein seriously causing harm is 3,800,000 hm
2, account for 11.5% of paddy rice cultivated area.According to weeds harm statistics, area takes place the barnyard grass grass and harm ranks first, and is difformed galingale herb, Monochoria vaginalis, flat stalk Fischer grass, moleplant seed, pondweed, Monochoria korsakowii, ear leaf water amaranth etc. secondly.
Along with the development of agricultural cience and farming techniques and the enforcement of mechanization, live field (water direct seeding and direct-sowing dry) is the planting patterns that reduces artificial and the amount of lightening one's labor, but relies on the chemical weed control in later stage more; The popularization and the application of chemical herbicide simultaneously, as the saving of labor, one of the strong well stimulation that saves time, reduce cost supporting the enforcement of the new mode of heavily planting.
(be to use weed killer herbicide behind the seedling of being developed by U.S. Tao Nongke company (Dow AgroSciences), it works by suppressing acetolactate synthestase (ALS) penoxsuam.On September 24th, 2004 is in U.S. EPA official register registration, applies in southern US rice district in 2005, registers and begins to promote the use of in China in 2008.This medicament can very effectively be prevented and kill off the barnyard grass grass and (comprise Stam F-34, the barnyard grass grass of dichloro quinolinic acid and anti-acetyl coenzyme A carboxylase tool resistance), moleplant seed and annual sedge weed, simultaneously, it also can prevent and kill off anti-sulfonylurea weeds in the paddy field, and many broad-leaveds and sedge weed and barnyard grass grass etc. had residual activity, for present paddy field is composed the widest kind with killing grass in the weed killer herbicide, but use cost height, limiting its large tracts of land promotes the use of, therefore penoxsuam and other kind combinations of herbicides is composite, improve drug effect, enlarge the control of weeds spectrum, reduce usage amount, enlarging using of this medicament is present urgent problem.
The English common name penoxsulam of penoxsuam, and chemical name 2-(2,2-difluoro ethoxy)-N-(5,8-dimethoxy (1,2,4) triazole-(1,5-C) pyrimidine-2-base)-6-trifluoromethyl-benzene sulfanilamide (SN).Structural formula is:
Penoxsuam is a kind of triazolopyrimidine sulfonamide weed killer herbicide, works by suppressing the acetyl-lactic acid ester synzyme, and medicament absorbs via grass cutting blade, sheath portion or root, conducts to meristematic tissue, causes that weed growth stops, yellow, and is dead then.Be used to prevent and kill off the paddy field annual weed, to barnyard grass grass special efficacy, but to the anti-heterodyne of part grassy weed, nutgrass flatsedge and broad leaved weed.The action target of this medicament is acetolactate synthestase (ALS), it is documented that the weeds of anti-sulfonylurea herbicide significantly are lower than other sulfonylurea medicaments the cross resistance level of triazolopyrimidine sulfonamides herbicide, and the activity of weeding of penoxsuam and other ALS inhibitor there is evident difference.Therefore penoxsuam is the comparatively ideal weed killer herbicide of control paddy field weed.Penoxsuam effectively defense sector is prevented and kill off barnyard grass grass (comprising the barnyard grass grass to Stam F-34, dichloro quinolinic acid and anti-acetyl coenzyme A carboxylase tool resistance) rice barnyard grass, angustifolia arrowhead herb, sesbania and annual sedge weed; Be used for the place of water rice field produces resistant weed to sulfonylurea improvement.
In the use of field, though showing, penoxsuam has good preventive effect to most of grass family such as barnyard grass grass are assorted, part grassy weed, broad leaved weed, nutgrass flatsedge are only had only some inhibitory action, a drug can't solve the harm of weeds in field.Penoxsuam used nearly 10 years in southern china rice district, by initial consumption (active ingredient) 15g/hm
2Be increased to present 37.5g/hm
2Though temporarily do not see about the report of weeds to the penoxsuam resistance, in the actual production, consumption has improved 2-2.5 doubly, and the coming years, consumption will improve once more, and the pesticide resistance of concern weeds is very important problem.
Penoxsuam is control paddy field grass family and the comparatively ideal weed killer herbicide of part sedge weed in sum, but still have its weak point, based on above reason with penoxsuam and other herbicide for paddy field science assembly, kill the grass spectrum thereby enlarge, reducing medication number of times and dosage, is the difficult problem that solution is badly in need of in present rice district.
Azoles humulone, Chinese name are good fortune farming, go out spirit, triazolone grass ester, carfentrazone soon again, and it is the triazolineone weed killer herbicide by the exploitation of rich U.S. real (FMC) company of the U.S..Its chemical name is: ethyl-2-chloro-3-{2-chloro-5-[4-(difluoromethyl)-4,5-dihydro-3-methyl-5-oxygen-1H-1,2,4-triazol-1-yl]-the 4-fluorophenyl } ethyl propionate, its structural formula is:
The azoles humulone is a kind of contact killing type selective herbicide, having under the condition of light, in the chlorophyll biosynthetic process, causes the accumulation of poisonous intermediate by the inhibition proporphyrinogen oxidase, thereby destroys the cell membrane of weeds, makes blade withered, dead rapidly.Carfentrazoneethyl is promptly absorbed by plant leaf blade in 15 minutes behind the spray medicine, and it is not drenched with rain influences, and poisoning symptom just appears in weeds after 3-4 hours, death in 2-4 days.The characteristics of azoles humulone are that to kill careless speed fast, be subjected to low temperature effect little, the medication chance is wide, because the azoles humulone has good low-temperature resistance and resistance of rainwater washing against effect, can be before the winter temperature drop to medication when very low, also can get the jump on the timely medication in rainy day gap frequent spring in rainfall, and fool proof to succession crop, be the fine herbicide that wheatland is eliminated spring.
Being mainly used in of azoles humulone prevented and kill off weeds such as broad leaved weed and nutgrass flatsedge such as clearvers, white dead nettle, Veronica, piemarker, Armstrong, lamb's-quarters, red heart lamb's-quarters, blank pipe are led a cow, weasel hemp nettle, pale persicaria, willow leaf thorn knotweed, volume stem knotweed, Amaranthus retroflexus, acalypha copperleaf, precious leaf mustard, corn sow thistle, white dead nettle, fruitlet flax, summer cypress, black nightshade, sinapsis alba.Especially clearvers, piemarker, red heart lamb's-quarters, shepherd's purse, wartwort, corn gromwell, blank pipe weeds such as lead a cow are had excellent imitation, the weeds etc. that sulfonylurea herbicide produced resistance have good active.
The pyrazosulfuron Chinese name makes careless jinx, the rice song or the rice moon give birth to again, its chemical name be 5-(4, the amino sulphur of 6-dimethoxypyridin base-2-carbamyl-1-methylpyrazole-4-carboxylic acid (ethyl ester), its structural formula is:
Pyrazosulfuron is the efficient selective herbicide for paddy field, belongs to the side chain amino acid synthetic inhibitor.Its active ingredient can spread rapidly in water, being transmitted to the biosynthesis that suppresses acetolactate synthestase, the necessary amino acid valine of plant and isoleucine in the plant body after the root of weeds the absorption stops cell division, suppress the growth of weeds leaves and stems and the stretching, extension of root rapidly, withered fully then.Though weeds still present green after the dispenser sometimes, grow and receive inhibition, lose competitive ability with paddy rice.Paddy rice absorbs the back and carry out hydroxylating in the plant body, and is degraded to the compound of non-activity rapidly, so pyrazosulfuron is to rice safety.Its drug effect is temperature influence not, and lasting medicine is disposable employed, can control the perennial long-term multiple weeds harm of paddy rice.Better to control efficiency such as broad leaved weed, sedge weeds.Can prevent and treat rice direct seeding field, transplant field, seedling throwing field weeds, as needle spikesedge herb, Herba Cyperi Glomerati, difformed galingale herb, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, short arrowhead, pondweed, firefly Lin, duckweed, bur beggar-ticks, floating life water starwort, grass, hot-tempered, the little najas marina of wheel, three calyx waterworts, horsefly eye, sweet wine intestines, mexicana, Chinese celery etc.But because long-term use continuously, rice field main weeds such as difformed galingale herb, firefly Lin, arrowhead, Monochoria korsakowii, Monochoria vaginalis, Procumbent Falsepimpernel resistance in various degree occurred to pyrazosulfuron.Pyrazosulfuron only has strong inhibitory action to the barnyard grass grass.Preceding or the seedling post processing of bud, preventive effect is good.
CN200810097409 discloses a kind of rice direct seeding field mixed herbicide that contains penoxsuam and pyrazosulfuron.Practical application discovery penoxsuam and pyrazosulfuron show as not high shakiness for the preventive effect of some weeds.Especially to lady's-grass, eleusine indica, moleplant seed, flat stalk Fischer grass, faber bristlegrass herb, angustifolia arrowhead herb etc.
CN200810243289 discloses pyrazosulfuron and the composite weed killer herbicide of azoles humulone, is used to prevent and kill off the paddy field broad leaved weed.It is invalid to the rice field grassy weed.
Summary of the invention
The present invention seeks in order disposablely to prevent and kill off all weeds in field, enlarge the restriction of killing the grass spectrum of pyrazosulfuron and azoles humulone combination, mention penoxsuam and pyrazosulfuron kill grass to nutgrass flatsedge and broadleaved herb speed, a kind of weed killer herbicide that can use in the overall process of paddy growth is provided, the invention provides a kind of novel built Herbicidal combinations, said composition is carried out penoxsuam, azoles humulone and pyrazosulfuron composite.The discovery that the present invention is surprised, the new compositions that obtains has been obtained gain effect on control paddy field, corn field, wheat paddock malignant weed, especially to having special efficacy in long-term weeds of using sulfonylureas weed killer herbicide area to develop immunity to drugs, to succession crop safety, significantly reduce the amount of the required active component of control of weeds, and the phytotoxicity of crop is not produced unacceptable toxicity.
In order to solve the problems of the technologies described above, the invention provides a kind of novel built Herbicidal combinations, said composition is by carrying out ternary built with penoxsuam, azoles humulone and pyrazosulfuron, make resulting new compositions in the control of paddy rice, wheat, corn weeds in field, obtain gain effect, especially to having special efficacy, to succession crop safety in long-term weeds of using sulfonylureas weed killer herbicide area to develop immunity to drugs.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of composite Herbicidal combinations comprises
First active component: penoxsuam,
Second active component: the azoles humulone,
The 3rd active component: pyrazosulfuron,
Above-mentioned three kinds of active component mixture ratio by weight percent scopes are 0.1～20:0.1～20:0.1～20.
As a further improvement on the present invention, described three kinds of active component mixture ratio by weight percent scopes are 1～10:1～10:1～10, preferred 1～5:1～5:1～5.
Described novel built Herbicidal combinations can be mixed with agricultural and go up any formulation that allows.Preferred liquor, wetting powder, missible oil, suspending agent, oil-suspending agent, microcapsules, microemulsion, aqueous emulsion, suspended emulsion, water dispersible granules, ZC, ultra low volume liquids.
The present invention also provides a kind of novel built Herbicidal combinations, and the reactive compound combination that comprises described cooperative effective quantity mixes with at least a preparation technique usual auxiliaries.
The present invention also provides the method for a kind of collaborative control of undesirable plant, comprises described novel built Herbicidal combinations is applied on the growth place or leaf or stem of undesirable plant.Described undesirable plant is grassy weed, broad leaved weed and sedge weed.
Described undesirable plant optimization barnyard grass grass, moleplant seed, clearvers, white dead nettle, Veronica, piemarker, Armstrong, lamb's-quarters, the red heart lamb's-quarters, blank pipe is led a cow, the weasel hemp nettle, pale persicaria, willow leaf thorn knotweed, volume stem knotweed, Amaranthus retroflexus, acalypha copperleaf, precious leaf mustard, corn sow thistle, white dead nettle, fruitlet flax, summer cypress, black nightshade, sinapsis alba, rice Li Shi standing grain, needle spikesedge herb, Herba Cyperi Glomerati, difformed galingale herb, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, short arrowhead, pondweed, firefly Lin, duckweed, bur beggar-ticks, the floating life water starwort, not careless, take turns hot-tempered, little najas marina, three calyx waterworts, the horsefly eye, the sweet wine intestines, mexicana, Chinese celery.
The present invention also provides the method for a kind of collaborative control of undesirable plant, comprises composite Herbicidal combinations is used in the presence of other breeding part of the seed of useful crop plant, useful crop or useful crop.Wherein said useful crop is paddy rice, wheat, corn.Preferred paddy rice and corn crop.
The composite Herbicidal combinations of the present invention, said composition is by carrying out ternary built with penoxsuam, azoles humulone and pyrazosulfuron, make resulting new compositions in the control of paddy rice, wheat, corn weeds in field, obtain gain effect, especially to having special efficacy, to succession crop safety in long-term weeds of using sulfonylureas weed killer herbicide area to develop immunity to drugs.
The composite Herbicidal combinations of the present invention is in order disposablely to prevent and kill off all weeds in field, enlarge the restriction of killing the grass spectrum of pyrazosulfuron and azoles humulone combination, mention penoxsuam and pyrazosulfuron nutgrass flatsedge and broadleaved herb are killed careless speed, a kind of weed killer herbicide that can use in the overall process of paddy growth is provided.
Embodiment
The combination of active principles of different agricultural chemicals is made agricultural chemicals, is a kind of mode effectively and efficiently that exploitation at present and development novel pesticide and control agricultural go up resistant weed.The agricultural chemicals of different cultivars shows three kinds of type of action: summation action, synergistic effect and antagonism after mixing usually.But be specially which kind of effect, unpredictable, have only by a large amount of experiments and just can know.Compound synergic is good prescription, owing to obviously improved actual control efficiency, reduced the usage amount of agricultural chemicals, thereby delayed drug-fast generation speed widely, and be the important means of integrated control disease.
The invention provides a kind of composite Herbicidal combinations, comprise
First active component: penoxsuam,
Second active component: the azoles humulone,
The 3rd active component: pyrazosulfuron,
The inventor is by a large amount of screening tests, the different proportionings of penoxsuam, azoles humulone, pyrazosulfuron test and effectiveness analysis have been carried out a large amount of, discovery is in certain ratio range, resulting Herbicidal combinations has gain effect, and is not only the simple addition of three kinds of medicaments.
Above-mentioned three kinds of active component mixture ratio by weight percent scopes are 0.1～20:0.1～20:0.1～20, preferred 1～10:1～10:1～10, preferred 1～5:1～5:1～5.
The present invention also provides a kind of composite Herbicidal combinations, and the reactive compound combination that comprises described cooperative effective quantity mixes with at least a preparation technique usual auxiliaries.
The auxiliary agent that uses in the composite Herbicidal combinations of the present invention comprises that liquid-carrier, solid carrier, dispersant, emulsifier, stabilizing agent, antifreezing agent, thickener etc. and other are of value to the known substance that active ingredient is stablized and drug effect is brought into play in preparation, all be the various compositions of using or allow use in the agricultural chemicals always, be not particularly limited, concrete composition and consumption require to determine by simple experiment according to prescription.
The liquid-carrier that is fit to preparation composite Herbicidal combinations of the present invention comprises aromatic hydrocarbons, aliphatic hydrocarbon.Particularly suitable be polar solvent, as alcohols and their ether and ester.Also have vegetable oil and the molten fiber of methyl in addition.Simultaneously, mixtures of different liquids also is suitable for.
The solid carrier that is fit to novel built Herbicidal combinations of the present invention is diatomite, Magnesiumaluminumsilicate, atlapulgite, kaolin, clay, gypsum, bentonite, white carbon, precipitated calcium carbonate, lime stone, wood chip, corn starch, soluble starch etc.
The emulsifier that is fit to preparation novel built Herbicidal combinations of the present invention can be anion and/or non-example type emulsifier, for example alkylphenol polyoxyethylene, alkylphenol-polyethenoxy polyethenoxy ether, benzylphenol APEO, polyoxyethylene fatty acid ester, polyoxyethylene aliphatic alcohol ether, polyoxyethylene fatty amine, alkyl phenol polyglycol ether etc.
The dispersant that is fit to preparation novel built Herbicidal combinations of the present invention can be alkylnaphthalene sulfonate, two (alkyl) naphthalenesulfonate formaldehyde condensation compound, naphthalene sulfonic acid-formaldehyde condensation product, the alkylphenol-polyethenoxy based phosphates, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, the alkylphenol polyoxyethylene phosphate, alkylphenol polyoxyethylene, the castor oil ethylene oxide adduct, oxirane-propylene oxide block copolymer, the dirt of alkylphenol polyoxyethylene formaldehyde condensation, octylphenol polyethylene oxyethylene group ether sulfate and methylcellulose.For example sodium lignin sulfonate, calcium lignosulfonate, methyl naphthalene sulfonate formaldehyde condensate, the dirt of sodium naphthalene sulfonate formaldehyde condensation, methanonaphthalene sodium sulfonate etc.
Other additive can be enumerated the carboxymethyl cellulose that uses with the auxiliary agent form usually, ethylene glycol and propane diols etc. when preparation.
Novel built Herbicidal combinations among the present invention can also contain colouring agent, for example inorganic pigment iron oxide, titanium oxide or Prussia orchid; Organic dyestuff alizarin, azo dyes, metal phthalocyanine orchid or kiton colors etc.
Can any form commonly used use composition of the present invention.The blade face formulation example of premix composition is:
GR: granule
WP: wetting powder
WG: but the water dispersible granule
SG: solvable granula
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
The preferred formulation of the present invention can be liquor, wetting powder, missible oil, suspending agent, oil-suspending agent, microcapsules, microemulsion, aqueous emulsion, suspended emulsion, water dispersible granules, ZC, ultra low volume liquids.
For water dispersible granules, those skilled in the art are familiar with the use corresponding adjuvants and finish the present invention very much.Dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, alkylphenol polyoxyethylene, EO/PO block polyether; Wetting agent is selected from alkyl sulfate, alkylsulfonate, naphthalene sulfonate, sodium lignin sulfonate, fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene; Disintegrant is selected from ammonium sulfate, sodium sulphate, sodium chloride, ammonium chloride, urea, sucrose, glucose, carboxymethyl cellulose, soluble starch, polyvinylpyrrolidone; Binding agent is selected from polyvinyl alcohol, soluble starch, dextrin, xanthans, carboxymethyl (ethyl) cellulose family; Filler is selected from diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, potter's clay.
To wetting powder, spendable auxiliary agent has: dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate; Wetting agent is selected from alkyl sulfate, alkylsulfonate, naphthalene sulfonate; Filler is selected from ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, potter's clay.
To suspending agent, spendable auxiliary agent has: dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, TERSPERSE 2425 (U.S. Huntsman Corporation produces, the alkyl naphthalene sulfonic acid salt); Alkyl phenol formaldehyde resin polyoxyethylene ether), farming breast 2201, this dish-60# (common name: sorbitan monostearate), emulsifier T-60 (common name: the sorbitan monostearate APEO), agricultural newborn 1601# (common name: phenethyl phenol polyoxyethylene poly-oxygen propylene aether), TERSPERSE 4894 (U.S. Huntsman Corporation product) emulsifier is selected from Nongru-700 # (common name:; Wetting agent is selected from alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE2500 (U.S. Huntsman Corporation product); Thickener is selected from xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate; Preservative is selected from formaldehyde, benzoic acid, Sodium Benzoate; Defoamer is silicone based defoamer; Antifreezing agent is selected from ethylene glycol, propane diols, glycerine, urea, inorganic salts (as sodium chloride).
But to the dispersed oil suspending agent, spendable auxiliary agent has: dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), TERSPERSE 2425, and emulsifier is selected from the serial emulsifier (BY-110 of BY (castor oil polyoxyethylene ether), BY-125, BY-140) Nongru-700 # (common name: alkyl phenol formaldehyde resin polyoxyethylene ether), farming breast 2201, this dish-60# (common name: sorbitan monostearate), Tween-60 # (common name: the sorbitan monostearate APEO), the newborn 1601# of farming (common name: phenethyl phenol polyoxyethylene poly-oxygen propylene aether), TERSPERSE4894; Wetting agent is selected from alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500; Thickener is selected from white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate; Antifreezing agent is selected from ethylene glycol, propane diols, glycerine, urea, inorganic salts (as sodium chloride); Stabilizing agent is selected from epoxidized soybean oil, epoxychloropropane, triphenyl phosphate; Dispersion medium is selected from soybean oil, rapeseed oil, corn oil, methyl oleate, diesel oil, machine oil, mineral oil.
The formulation example that is fit to the bucket mixing composition is solution, dilution emulsion, suspending agent or its mixing and pulvis.
Usually, the bucket mixing composition is to contain different agricultural chemicals and one or more premix compositions of further auxiliary agent randomly with what solvent (as water) dilution formed.
Generally, blade face bucket mixture comprises 0.1-20%, the reactive compound of 0.1-15% particularly, and 99.9%-80%, solid-state or the liquid flux of 99.9-85% (comprising ratio of solvent such as water) particularly, wherein auxiliary agent can be based on the bucket mixture, the surfactant of content 0-20%, particularly 0.1-15%.
Usually the pre-mixing agent of foliage applying comprises 0.1-99.9%, the active compound component of 1-95% particularly, and 99.9-0.1%, solid-state or the liquid flux of 99-5% (comprising) particularly as ratio of solvent such as water, wherein auxiliary agent can be based on pre-mixing agent, the surfactant of content 0-50%, particularly 0.5-40%.
Of the present inventionly comprise 0.5-99.9% through composition prepared, 1-95% particularly, the active compound component of 1-50% advantageously, and 99.5-0.1%, the particularly solid of 99-5% quality or liquid assistant agent (comprising) as solvent such as water, wherein said auxiliary agent (or assistant agent) can be based on the surfactant of the 0-50%, particularly 0.5-40% of pre-mixing agent quality.
The present invention also provides the method for a kind of collaborative control of undesirable plant, comprises described composite Herbicidal combinations is applied on the growth place or leaf or stem of undesirable plant.Described undesirable plant is grassy weed, broad leaved weed and sedge weed.Preferred clearvers, white dead nettle, Veronica, piemarker, Armstrong, lamb's-quarters, the red heart lamb's-quarters, blank pipe is led a cow, the weasel hemp nettle, pale persicaria, willow leaf thorn knotweed, volume stem knotweed, Amaranthus retroflexus, acalypha copperleaf, precious leaf mustard, corn sow thistle, white dead nettle, fruitlet flax, summer cypress, black nightshade, sinapsis alba, the barnyard grass grass, rice Li Shi standing grain, needle spikesedge herb, Herba Cyperi Glomerati, difformed galingale herb, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, short arrowhead, pondweed, firefly Lin, duckweed, bur beggar-ticks, the floating life water starwort, not careless, take turns hot-tempered, little najas marina, three calyx waterworts, the horsefly eye, the sweet wine intestines, mexicana, Chinese celery etc.
The present invention also provides the method for a kind of collaborative control of undesirable plant, comprises the novel built Herbicidal combinations is used in the presence of other breeding part of the seed of useful crop plant, useful crop or useful crop.Wherein said useful crop is corn, paddy rice, wheat.Preferred paddy rice and corn crop.
According to the preparation characteristic, can be selected from application process according to expection object and popular environment, as the blade face, soak into, spray, dust, scattering selects.
The cooperative effective quantity that is applicable to the combination of composition of the present invention can be according to the variations such as kind of at that time condition such as weed pressure, time of application, method of application, weather, soil regime, features of terrain, target crop.In practicing, about 0.10kg/ha-1.00kg/ha enough is provided, the rate of application of the active component of preferred about 0.25 kg/ha-0.75 kg/ha is suitable.
The inventive method most preferably is used to prevent and treat the interior weeds in zone that the plant growth district maybe will be used for kind of plant.When being used for the plant growth district, amount of application should be enough to control weed growth but can be to not do the serious nonvolatil injury of deposits yields.
Herbicidal combinations of the present invention can also can be at postemergence application at preemergence application, preferred postemergence application, and particularly weed growth is early stage.With Herbicidal combinations early time treatment before plantation (particularly soil surface is used) also is one of feature of the inventive method.
The present invention compared with prior art has following beneficial effect:
The invention provides a kind of novel built Herbicidal combinations, said composition is by carrying out ternary built with penoxsuam, azoles humulone and pyrazosulfuron, make and obtained gain effect in the control of resulting new compositions to grassy weed, broad leaved weed and sedge weed, enlarged herbicidal spectrum.Especially on control paddy field, wheat paddock, corn field malignant weed, obtained gain effect, significantly reduced the amount of controlling weeds dispensary need active component, and the phytotoxicity of crop has not been produced unacceptable increase.And Herbicidal combinations of the present invention is especially to having special efficacy in long-term weeds of using sulfonylureas weed killer herbicide area to develop immunity to drugs, to succession crop safety.
From the following examples as can be seen, herbicide composition of the present invention shows good weeding activity, and the activity of weeding of single reactive compound or binary activity of weeding a little less than, the activity of combination of the present invention surpass simply adding of each single compound activity and binary combination activity and.
During active sum when the activity of weeding of reactive compound combination surpasses each reactive compound and uses separately, then always there is synergy.
Example of formulations
RealExecute routine 1:1% penoxsuam+5% azoles humulone+10% pyrazosulfuron oil-suspending agent
Penoxsuam 1%
Azoles humulone 5%
Pyrazosulfuron 10%
Methyl naphthalene sulfonate formaldehyde condensate 10%
Bentonite 1%
Glycerine 5%
Corn oil complements to 100%
Active component, dispersant, wetting agent and each component of corn wet goods ratio according to prescription is mixed, after grinding and/or high speed shear, obtain 1% penoxsuam+5% azoles humulone+10% pyrazosulfuron oil-suspending agent.
Embodiment 2 0.1% penoxsuams+10% azoles humulone+10% pyrazosulfuron wetting powder
Penoxsuam 0.1%
Azoles humulone 10%
Pyrazosulfuron 10%
Lauryl sodium sulfate 10%
Sodium lignin sulfonate 5%
Sucrose complements to 100%
Ratio composition in prescription such as active component, various auxiliary agent and filler is mixed, after ultrafine crusher is pulverized, promptly obtain 0.1% penoxsuam+10% azoles humulone+10% pyrazosulfuron wetting powder.
Embodiment 3 1% penoxsuams+5% azoles humulone+20% pyrazosulfuron wetting powder
Penoxsuam 1%
Azoles humulone 5%
Pyrazosulfuron 20%
Calcium dodecyl benzene sulfonate 1%
Sodium lignin sulfonate 2%
White carbon complements to 100%
Ratio composition in prescription such as active component, various auxiliary agent and filler is mixed, after ultrafine crusher is pulverized, promptly obtain 1% penoxsuam+5% azoles humulone+20% pyrazosulfuron Wettable Powder.
Embodiment 4 0.1% penoxsuams+1% azoles humulone+3% pyrazosulfuron water-soluble granule
Penoxsuam 0.1%
Azoles humulone 1%
Pyrazosulfuron 3%
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 prescription is mixed, become wetting powder, add a certain amount of water mixing extruding again and make material through comminution by gas stream.Obtain 0.1% penoxsuam+1% azoles humulone+3% pyrazosulfuron water-soluble granule after the drying screening.
Embodiment 5 1% penoxsuams+10% azoles humulone+10% pyrazosulfuron ultra low volume liquids
Penoxsuam 1%
Azoles humulone 10%
Pyrazosulfuron 10%
Ethoxylated castor oil 5%
Calcium dodecyl benzene sulfonate 3%
Dimethyl sulfoxide (DMSO) complements to 100%
Mentioned component is proportionally prepared, and stirring obtains the phase of homogeneous.
Embodiment 6 10% penoxsuams+5% azoles humulone+20% pyrazosulfuron suspension emulsion
Penoxsuam 10%
Azoles humulone 5%
Pyrazosulfuron 20%
Methyl naphthalene sulfonate formaldehyde condensate 5%
Ethoxylated castor oil 3%
Bentonite 1%
Aromatic solvent 100 20%
Soybean oil complements to 100%
Penoxsuam, pyrazosulfuron, methyl naphthalene sulfonate formaldehyde condensate are obtained the suspending agent of penoxsuam and pyrazosulfuron after grinding and/or high speed shear; Azoles humulone, aromatic solvent 100, ethoxylated castor oil mixing and stirring are obtained the missible oil of azoles humulone; The azoles humulone missible oil that obtains is joined in the oil-suspending agent of penoxsuam+pyrazosulfuron, obtain 10% penoxsuam+5% azoles humulone+20% pyrazosulfuron suspension emulsion.
Embodiment 7 20% penoxsuams+2% azoles humulone+0.1% pyrazosulfuron wetting powder
Penoxsuam 20%
Azoles humulone 2%
Pyrazosulfuron 0.1%
Sodium lignin sulfonate 5%
White carbon 10%
Kaolin complements to 100%
Said components is mixed in proportion, and grind, pulverize, be prepared into wetting powder.
Embodiment 8 5% penoxsuams+0.1% azoles humulone+20% pyrazosulfuron water dispersible granules
Penoxsuam 5%
Azoles humulone 0.1%
Pyrazosulfuron 20%
MODIFIED LIGNOSULPHONATE 5%
Lauryl sodium sulfate 5%
Urea 5%
Kaolin complements to 100%
Penoxsuam, azoles humulone active component, dispersant, wetting agent, disintegrant and the filler ratio in prescription is mixed, become wetting powder through comminution by gas stream; Adding pyrazosulfuron again mixes; Add a certain amount of water mixing extruding again and make material.Obtain 5% penoxsuam+0.1% azoles humulone+20% pyrazosulfuron water dispersible granules after the drying screening.
Embodiment 9 0.1% penoxsuams+2% azoles humulone+2% pyrazosulfuron aqueous emulsion
Oil phase:
Penoxsuam 0.1%
Azoles humulone 2%
Methyl oleate 10%
Ethoxylated castor oil 5%
Water:
Pyrazosulfuron 2%
The sodium salt 1% of the naphthalene sulfonic acids-formaldehyde condensation products of sulfonation
Water complements to 100%
Azoles humulone and pyrazosulfuron are dissolved in the methyl oleate, add ethoxylated castor oil and obtain oil phase; According to the sodium salt of prescription, water, mix and obtain water the naphthalene sulfonic acids-formaldehyde condensation products of penoxsuam and sulfonation; Under agitation oil phase is added water and obtain aqueous emulsion.
Embodiment 10 15% penoxsuams+5% azoles humulone+5% pyrazosulfuron wetting powder
Penoxsuam 15%
Azoles humulone 5%
Pyrazosulfuron 5%
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 grind, pulverize, be prepared into wetting powder.
Embodiment 11 0.1% penoxsuams+0.1% azoles humulone+0.1% pyrazosulfuron coated granule
Penoxsuam 0.1%
Azoles humulone 0.1%
Pyrazosulfuron 0.1%
Polyethylene glycol 3%
The silicic acid 1% of high degree of dispersion
Calcium carbonate complements to 100%
In blender, levigate active component evenly is applied to by on the wetting carrier of polyethylene glycol.Can obtain dustless coated granule in this way.
Embodiment 12 20% penoxsuams+20% azoles humulone+10% pyrazosulfuron wetting powder
Penoxsuam 20%
Azoles humulone 20%
Pyrazosulfuron 10%
Lauryl sodium sulfate 1%
Sodium lignin sulfonate 1%
Kaolin complements to 100%
Said components is mixed in proportion, and grind, pulverize, be prepared into wetting powder.
Embodiment 13 10% penoxsuams+1% azoles humulone+10% pyrazosulfuron is extruded granule
Penoxsuam 10%
Azoles humulone 1%
Pyrazosulfuron 10%
Sodium lignin sulfonate 4%
Carboxymethyl cellulose 2%
Kaolin complements to 100%
Active component is mixed with auxiliary agent and grind the mixture water-wet.This mixture is extruded, dry in air flow then.
Embodiment 14 1% penoxsuams+20% azoles humulone+1% pyrazosulfuron aqueous emulsion
Penoxsuam 1%
Azoles humulone 20%
Pyrazosulfuron 1%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Methyl oleate 5%
Water complements to 100%
Pyrazosulfuron, azoles humulone are dissolved in the methyl oleate, add ethoxylated castor oil and obtain oil phase; According to the sodium salt of prescription, water, mix and obtain water the naphthalene sulfonic acids-formaldehyde condensation products of penoxsuam and sulfonation; Under agitation oil phase is added water and obtain aqueous emulsion.
Embodiment 15 3% penoxsuams+10% azoles humulone+5% pyrazosulfuron ZC
Atlox 4913 4%
Citric acid 0.05%
Catalyzer 0.1%
Water 13%
Pyrazosulfuron 5%
PAPI 1.35%
Solvesso 200 10%
Atlox4913 16%
Dispersant LFH 0.3%
Defoamer 0.16%
Urea 8.4%
Penoxsuam 3%
Azoles humulone 10%
Water complements to 100%
With PAPI, the oil phase that azoles humulone, Solvesso 100 form adds and contains in the aqueous solution of Atlox4913, forms emulsion.Heat then and be incubated 50
oC added catalyst reaction 2 hours down.Obtain the microcapsules of azoles humulone after the cooling.
Atlox 4913, dispersant LFH, and defoamer, urea, penoxsuam+pyrazosulfuron and water mix in proportion, and through sand milling, are prepared into suspending agent.
The microcapsules of the azoles humulone that obtains is added in the suspending agent of penoxsuam+pyrazosulfuron, and stirring obtains 3% penoxsuam+10% azoles humulone+5% pyrazosulfuron ZC.
Embodiment 16 5% penoxsuams+15% azoles humulone+15% pyrazosulfuron suspended emulsion
Penoxsuam 5%
Azoles humulone 15%
Pyrazosulfuron 15%
Solvesso 200 10%
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%
The azoles humulone is dissolved among the Solvesso 200, adds ethoxylated castor oil, obtain the missible oil of azoles humulone;
With penoxsuam+pyrazosulfuron, fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium, above-mentioned each component mixes in proportion, and through sand milling, is prepared into suspending agent.
The oil phase that will contain the azoles humulone joins and contains in penoxsuam+pyrazosulfuron suspending agent, obtains suspended emulsion.
Embodiment 17 5% penoxsuams+5% azoles humulone+20% pyrazosulfuron missible oil
Penoxsuam 5%
Azoles humulone 5%
Pyrazosulfuron 20%
Ethoxylated castor oil 5%
Calcium dodecyl benzene sulfonate 3%
Solvesso100 complements to 100%
Above-mentioned each component is mixed, be stirred to and obtain transparent homogeneous phase.
Embodiment 19 30% penoxsuams+30% azoles humulone+40% pyrazosulfuron
Penoxsuam 30%
Azoles humulone 30%
Pyrazosulfuron 40%
Penoxsuam, azoles humulone, pyrazosulfuron are proportionally mixed.
The biological test example
When the effect of active compound combinations surpasses the summation of the effect when each reactive compound is used separately, there is synergistic function.The predictive role of the particular combinations of two kinds of reactive compounds can use so-called " Colby formula " (referring to S.R. Colby, " Calculating Synergistic and Antagonistic Responses of Herbicide Combinations ", Weeds 1967,15,20-22) following calculating: if
A be when use consumption as mg/ha or concentration the activity during as the reactive compound A of mppm;
B be when use consumption as ng/ha or concentration the activity during as the reactive compound B of nppm, be expressed as the percentage that accounts for untreated control;
C be when use consumption as hg/ha or concentration the activity during as the reactive compound C of hppm, be expressed as the percentage that accounts for untreated control;
E works as to use consumption to be m, n, and h g/ha or concentration are m, n, the expection activity when the reactive compound A of hppm and C,
E=A×B×C/ 100(N-1)
N is 3;
If the activity of actual observation (O) is greater than expection active (E), so said composition super add and, promptly have synergistic effect.
Invention main points of the present invention provide several preferred implementation below in order better to explain.
The inventor is by a large amount of screening tests, the different proportionings of penoxsuam, azoles humulone and pyrazosulfuron test and effectiveness analysis have been carried out a large amount of, discovery is in certain ratio range, resulting Herbicidal combinations has gain effect, and be not only the simple addition of three kinds of medicaments, specifically be illustrated with following biologicall test example.
Test: to the control test of paddy rice, wheat, corn weeds in field
Test method:
Paddy rice, wheat, between corn field there be the main weeds that occur: clearvers, white dead nettle, Veronica, piemarker, Armstrong, lamb's-quarters, the red heart lamb's-quarters, blank pipe is led a cow, the weasel hemp nettle, pale persicaria, willow leaf thorn knotweed, volume stem knotweed, Amaranthus retroflexus, acalypha copperleaf, precious leaf mustard, corn sow thistle, white dead nettle, fruitlet flax, summer cypress, black nightshade, sinapsis alba, the barnyard grass grass, rice Li Shi standing grain, needle spikesedge herb, Herba Cyperi Glomerati, difformed galingale herb, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, short arrowhead, pondweed, firefly Lin, duckweed, bur beggar-ticks, the floating life water starwort, not careless, take turns hot-tempered, little najas marina, three calyx waterworts, the horsefly eye, the sweet wine intestines, mexicana, Chinese celery etc.
We just select several difficult weeds that remove as subjects in the test below.
Medicament adopts now with the current mode, and we test with the prescription of embodiment the inside.Potted plant cultivation is adopted in the cultivation of target weeds, uses the 10*10cm plastic basin, will not use the soil of weed killer herbicide as cultivating soil.Evenly be sprinkling upon soil surface after the seed of the clearvers gathered last one year, summer cypress, black nightshade, sinapsis alba, barnyard grass grass, rice Li Shi standing grain, needle spikesedge herb, Herba Cyperi Glomerati, difformed galingale herb, Monochoria vaginalis soaked, wait it to grow 3～5 leaves.Spray penoxsuam then respectively, the azoles humulone, pyrazosulfuron according to ternary built medicament of the present invention, carries out observation analysis then.
Result and analysis:
After 3 weeks the control of black nightshade, barnyard grass grass, rice Li Shi standing grain, Monochoria vaginalis, clearvers grass, moleplant seed, pondweed is observed behind the spray medicine.
Control to the barnyard grass grass
Control to rice Li Shi standing grain
Control to the clearvers grass
Control to Monochoria vaginalis
Control to moleplant seed
Control to pondweed
By in the above-mentioned table as can be seen, novel built Herbicidal combinations provided by the invention has the obvious gain effect with respect to the independent use of three kinds of chemical substances.In addition, can find out significantly also from table that the grass spectrum of killing of the medicament that the present invention disposed has obvious reinforcement than the independent grass spectrum of using of killing of three kinds of chemical substances.
Claims (12)
1. a composite Herbicidal combinations is characterized in that: comprise
First active component: penoxsuam,
Second active component: the azoles humulone,
The 3rd active component: pyrazosulfuron,
Above-mentioned three kinds of active component mixture ratio by weight percent scopes are 0.1～20:0.1～20:0.1～20.
2. composite Herbicidal combinations according to claim 1 is characterized in that: described three kinds of active component mixture ratio by weight percent scopes are 1～10:1～10:1～10.
3. composite Herbicidal combinations according to claim 1 is characterized in that: described three kinds of active component mixture ratio by weight percent scopes are 1～5:1～5:1～5.
4. composite Herbicidal combinations according to claim 1 is characterized in that: described composite Herbicidal combinations can be mixed with agricultural and go up any formulation that allows.
5. composite Herbicidal combinations according to claim 4 is characterized in that: the formulation of described composite Herbicidal combinations is liquor, wetting powder, missible oil, suspending agent, oil-suspending agent, microcapsules, microemulsion, aqueous emulsion, suspended emulsion, water dispersible granules, ZC, ultra low volume liquids.
6. composite Herbicidal combinations is characterized in that: the reactive compound combination that comprises the cooperative effective quantity in the claim 1 mixes with at least a preparation technique usual auxiliaries.
7. the method for a collaborative control of undesirable plant is characterized in that: comprise that the composite Herbicidal combinations with claim 1 is applied on the growth place or leaf or stem of undesirable plant.
8. method according to claim 7 is characterized in that: described undesirable plant is grassy weed, broad leaved weed and sedge weed.
9. method according to claim 7 is characterized in that: described undesirable plant is a thousand pieces of gold, clearvers, white dead nettle, Veronica, piemarker, Armstrong, lamb's-quarters, the red heart lamb's-quarters, blank pipe is led a cow, the weasel hemp nettle, pale persicaria, willow leaf thorn knotweed, volume stem knotweed, Amaranthus retroflexus, acalypha copperleaf, precious leaf mustard, corn sow thistle, white dead nettle, fruitlet flax, summer cypress, black nightshade, sinapsis alba, the barnyard grass grass, rice Li Shi standing grain, needle spikesedge herb, Herba Cyperi Glomerati, difformed galingale herb, Monochoria vaginalis, Monochoria korsakowii, rhizoma alismatis, short arrowhead, pondweed, firefly Lin, duckweed, bur beggar-ticks, the floating life water starwort, not careless, take turns hot-tempered, little najas marina, three calyx waterworts, the horsefly eye, the sweet wine intestines, mexicana, Chinese celery.
10. method according to claim 7 is characterized in that: comprise the composite Herbicidal combinations of claim 1 is used in the presence of other breeding part of the seed of useful crop plant, useful crop or useful crop.
11. method according to claim 10 is characterized in that: wherein said useful crop is cereal.
12. method according to claim 10 is characterized in that: wherein said useful crop is paddy rice, corn, wheat.
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| CN105145606A (en) * | 2015-07-17 | 2015-12-16 | 安徽金鼎医药有限公司 | Special herbicide mixture for bighead atractylodes rhizome and herbicidal microemulsion |
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