CN104738060B - Compounded weed control composition - Google Patents

Abstract

The invention provides a compounded weed control composition for a paddy field. . The compounded weed control composition for the paddy field comprises a first active component-penoxsulam and a second active component-2-methyl-4-chloro-phenoxyacetic acid isooctyl ester, of which the ratio range in weight percentage is 1:2 to 1:16. The compounded weed control composition has good fast-acting property and good lasting effect and has the synergistic interaction on the pest-killing effect, the production cost and the agricultural cost can be reduced and the compounded weed control composition can well serve for agriculture production.

Description

Complex herbicidal composition

The application is Application No. 201310153770.5, and the applying date is on April 28th, 2013, entitled " compounding The divisional application of Herbicidal combinations ".

Technical field

The present invention relates to a kind of complex herbicidal composition, more particularly to one kind is by penoxsuam, MCPA,MCP,methoxone and its spreads out Biology carries out binary built, is applied to the novel built Herbicidal combinations of rice terrace.

Background technology

Oryza sativa L. is one of world's staple food crop, in the world nearly half population, with rice as food, is produced throughout removing Each continent beyond south, the arctic；20 end of the centurys, 400,000,000,000 kilograms or so of View of World Rice annual production average out to, cultivated area is about 1.45 hundred million hectares.It is one of important cereal crops in rice in China, rice in China sown area accounts for national cereal crops 1/4, about 35,000,000 hectares every year, and yield accounts for the 50% of total grain output.No matter cultivated area or yield, in Grain in China Rank first in crop.

The rice field of all rice workspaces of China, particularly Zhejiang, Jiangxi, Jiangsu, Anhui etc. are saved with water direct seeding or direct-sowing dry Rice terrace, has a large amount of weeds；Oryza sativa L. has plantation all over China, and weeds in paddy field species is various, various places rice region weeds Species is different.According to statistics, national rice field constitutes the weeds of harm more than 200 kinds, wherein it is most common, endanger and heavier have More than 40 plant.It is documented that, national rice field crop smothering more than medium (2～5 grades) crop smothering area up to 1546.7 ten thousand hm², account for The 46% of total cultivated area, wherein seriously causing harm (4～5 grades) area for 3,800,000 hm², account for the 11.5% of Monitoring of Paddy Rice Plant Area. Count according to Weed infestation, barnyard grass occurring area is ranked first with harm, be secondly Herba Cyperi Difformiss, Herba monochoriae vaginaliss, flat stalk Fischer grass, a thousand pieces of gold Son, Herba potamogetonis distincti, Monochoria korsakowii, ear leaf water Herba Amaranthi tricoloriss etc..

With the enforcement of the development and mechanization of agricultural cience and farming techniques, live field（Water direct seeding and direct-sowing dry）It is to reduce people The planting patternss of work and the amount of lightening one's labor, but become more dependent on the chemical weed control in later stage；The popularization of chemical herbicide simultaneously and application, As saving of labor, save time, one of the strong well stimulation of reduces cost supports the new enforcement for planting mode again.

The Seedling developed by Tao Nongke companies of the U.S. (Dow AgroSciences) by penoxsuam (penoxsulam) system Herbicide is used afterwards, and it works by suppressing acetolactate synthestase (ALS).September is formally noted in U.S. EPA on the 24th within 2004 Volume registration, in southern US rice region popularization and application, registers in China and starts to promote the use of for 2005 for 2008.

Penoxsuam, English common name penoxsulam, chemical name 2- (2,2- difluoro ethoxy)-N- (5,8- dimethoxies (1,2,4) triazole-(1,5-C) pyrimidine -2-base) -6- trifluoromethyls-benzene sulfanilamide.Structural formula is：

Penoxsuam is a kind of triazolopyrimidine sulfonamide herbicide, is acted as by suppressing acetolactate synthase With medicament is conducted to separate living tissue via grass cutting blade, sheath portion or root absorption, causes weed growth stopping, yellow, then It is dead.The action target of the medicament is acetolactate synthestase (ALS), it is documented that anti-sulfonylurea herbicide is to triazol The cross resistance level of pyrimidine sulfonyl amine herbicide is substantially less than to other sulfonylurea medicaments, and the weeding of penoxsuam Activity has obvious difference with other ALS inhibitor.

Penoxsuam effectively can be prevented and kill off barnyard grass and (include to propanil, dichloro quinolinic acid and anti-S-acetyl-coenzyme-A carboxylation in defense sector Enzyme has the barnyard grass of resistance) rice barnyard grass, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.), sesbania and annual sedge weed；For substituting in rice terrace to sulfonylureas Class produces the improvement of resistant weed.

During the use of field, although penoxsuam shows miscellaneous with good to the major part grass family such as barnyard grass Preventive effect, but only there was only some inhibitory action to part grassy weed, broad leaved weed, dried tuber, a drug cannot solve field The harm of weeds.Penoxsuam is used nearly 10 years in paddy area in the southern part of China, by initial consumption（Effective ingredient）15g/hm² Increase 37.5g/hm till now².Although temporarily having no the report to penoxsuam resistance, actual production with regard to weeds In, consumption has improved 2-2.5 times, and coming years consumption will be improved again, and concern resistance weed is very important asking Topic.

Penoxsuam is to prevent and treat rice terrace grass family and the comparatively ideal herbicide of part sedge weed in sum, but Still there is its weak point, penoxsuam is assembled with other herbicide for paddy field science based on above reason, so as to expand herbicide Spectrum, reduces times for spraying and dosage, is current rice region urgent need to solve the problem.

MCPA,MCP,methoxone, English name 2-Methyl-4-chlorophenoxyacetic acid, chemical formula：CH3(Cl) C6H3OCH2COOH ；MCPA,MCP,methoxone is widely used on the crops such as Oryza sativa L., Semen Maydiss, Semen Tritici aestivi, for preventing and kill off broad leaved weed, to making Thing has good safety.

MCPA,MCP,methoxone and its derivant are phenoxy acetic acid class selectivity Uptake and translocation hormone like herbicide, Yi Weigen and leaf portion Absorb and conduct, the conducting tissue of dicotyledon can be destroyed, make growth promoter be interfered, stem and leaf distortion, basal part of stem are swollen Big thicker or cracking, swollen splitting go rotten and dead.Applicable Oryza sativa L. can prevent and kill off most of sedge weed and broad leaved weed.Diformazan four Chlorine derivative is MCPA,MCP,methoxone isopropyl acid, tetra chloro-butyric acid of dimethyl, tetra chloro-butyric acid of dimethyl butyl ester, the different monooctyl ester of MCPA,MCP,methoxone, diformazan four Chloroethene thioesters, MCPA,MCP,methoxone thioethyl ester, mcpa sodium, MCPA,MCP,methoxone potassium salt, MCPA,MCP,methoxone isopropyl amine salt.

The content of the invention

The present invention seeks to being directed to above-mentioned weak point provides a kind of complex herbicidal composition, by penoxsuam, diformazan Tetrachloro and its derivant carry out binary built, are scientifically combined, better than penoxsuam, the weeding of the single dose of MCPA,MCP,methoxone Effect, makes up the wideless defect of both weed control spectrums, and shows potentiation to grassy weed, broadleaved herb and dried tuber；One Secondary medication can efficiently control weeds in paddy field.

Complex herbicidal composition of the present invention is to take technical scheme below to realize：

Complex herbicidal composition of the present invention, including

First active component：Penoxsuam,

Second active component：MCPA,MCP,methoxone and its derivant,

Above two active component ratio range by weight percentage is 800：1～1：800, preferably 500：1～1： 500, more preferably 300：1～1：300, further preferably 100：1～1：100, further preferably 20：1～1:20.

The MCPA,MCP,methoxone derivant is MCPA,MCP,methoxone isopropyl acid, tetra chloro-butyric acid of dimethyl, tetra chloro-butyric acid of dimethyl butyl ester, diformazan The different monooctyl ester of tetrachloro, MCPA,MCP,methoxone second thioesters, MCPA,MCP,methoxone thioethyl ester, mcpa sodium, MCPA,MCP,methoxone potassium salt, MCPA,MCP,methoxone Isopropyl amine salt.

The complex herbicidal composition can be configured to any dosage form for agriculturally allowing.It is preferred that wettable powder, cream, outstanding Floating agent, oil-suspending agent, microcapsule, microemulsion, aqueous emulsion, suspended emulsion, water dispersible granules, ZC.

The present invention a kind of complex herbicidal composition is also provided, the active compound comprising the cooperative effective quantity with extremely A kind of few preparation technique usual auxiliaries mixing.

The method that the present invention also provides a kind of undesirable plant of collaboration preventing and treating, including by described novel built weeding Compositionss are applied on the growth place of undesirable plant or leaf or stem.The undesirable plant is that grass family is miscellaneous Grass, broad leaved weed and sedge weed.The undesirable plant is preferably barnyard grass（Echinochloa crusgalli L.Beauv）, rice barnyard grass, ear leaf water Herba Amaranthi tricoloriss, Herba Cyperi Difformiss（Cyperus difformis Linn.）, flat stalk Fischer grass（Scirpus planiculmis）, Lindernia procumbens (Krock.) Phillcox., Herba Caricis Phacotae（Cyperus rotundus L.）, Rhizoma Alismatis（Alismataceae）, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.) （Sagittariatrifolia）, sesbania（Sesbania exaltata）, ring flower（Commelina diffusa）, Herba monochoriae vaginaliss （Monochoria vaginalis）, Herba Clinopodii Polycephali（Equisetum ramosissimum Desf）, Herba Commelinae（Herba Commelinae）, Herba Murdanniae Triquetrae（Mllrdanniatriguetra）, wild Corm Eleocharitiss（Heleocharis plantagineiformis Tang et Wang）, Herba Fimbristylis miliaceae（Fimbristylis miliacea(L.) Vahl）Cyperus iria（Cyperus iria L.）.

The method that the present invention also provides a kind of undesirable plant of collaboration preventing and treating, including by novel built Herbicidal combination Thing is applied in the presence of other reproductive parts of useful crop plants plant, the seed of useful crop plants or useful crop plants.It is wherein described Useful crop plants are cereal crops, preferred rice crop.

The present invention is had the advantages that compared with prior art：

Complex herbicidal composition of the present invention, will be new by penoxsuam and MCPA,MCP,methoxone and its derivant are compounded Compositionss are applied to paddy field for preventing and treating grassy weed, broad leaved weed and sedge weed, improve prevention effect, to ear leaf Water Herba Amaranthi tricoloriss, Herba Caricis Phacotae, Herba Cyperi Difformiss, flat stalk Fischer grass, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.), the prevention effect of Lindernia procumbens (Krock.) Phillcox. are significantly improved, and slow down penoxsulam The resistance problem of amine.

Penoxsuam, MCPA,MCP,methoxone and its derivant are carried out binary built, science by complex herbicidal composition of the present invention Be combined, better than penoxsuam, the herbicidal effect of the single dose of MCPA,MCP,methoxone, make up the wideless defect of both weed control spectrums, And potentiation is shown to grassy weed, broadleaved herb and dried tuber；A drug can efficiently control weeds in paddy field.

Specific embodiment

The combination of active principles of different pesticide is made into mixture, is to develop and develop novel pesticide at present and prevent and treat agriculturally A kind of effective manner of resistant weed.After the pestsides synthesis of different cultivars, summation action, potentiation and short of money are typically exhibited Three kinds of type of action of anti-effect；Its type of action needs substantial amounts of test to examine or check.

Penoxsuam, MCPA,MCP,methoxone etc. are carried out binary built by us, are scientifically combined, and can be efficiently controlled Rice field, corn field weed, by compound synergic, improve field efficacy, reduce the consumption of pesticide, delay drug-fast generation speed Degree, is the important means of integrated control harmful organism.

A kind of novel built Herbicidal combinations that the present invention is provided, including

First active component：Penoxsuam,

Second active component：MCPA,MCP,methoxone and its derivant,

Inventor is entered to the different ratio of penoxsuam, MCPA,MCP,methoxone and its derivant by substantial amounts of screening test Test is gone a large amount of and preventive effect analysis, it is found that resulting Herbicidal combinations have potentiation in certain ratio range Effect, and the simple addition of not exclusively two kinds of medicaments.

The present invention provides a kind of novel built Herbicidal combinations, including

First active component：Penoxsuam,

Second active component：MCPA,MCP,methoxone and its derivant,

Above two active component ratio range by weight percentage is 1:800～800：1, preferably 500：1～1： 500, more preferably 300：1～1：300, more preferably 100:1～1:100, further preferably 20:1～1:20.

MCPA,MCP,methoxone derivant is MCPA,MCP,methoxone isopropyl acid, tetra chloro-butyric acid of dimethyl, tetra chloro-butyric acid of dimethyl butyl ester, MCPA,MCP,methoxone Different monooctyl ester, MCPA,MCP,methoxone second thioesters, MCPA,MCP,methoxone thioethyl ester, mcpa sodium, MCPA,MCP,methoxone potassium salt, MCPA,MCP,methoxone isopropyl Amine salt.

The present invention also provides a kind of novel built Herbicidal combinations, the active compound comprising the cooperative effective quantity Mix with least one preparation technique usual auxiliaries.

Auxiliary agent used in the novel built Herbicidal combinations of the present invention includes liquid-carrier, solid carrier, dispersant, breast Agent, stabilizer, antifreezing agent, thickening agent etc. and other be beneficial to the known substance that effective ingredient is stable in the formulation and drug effect is played Matter, is all to commonly use in pesticide or allow the various composition for using, is not particularly limited, concrete composition and consumption are according to recipe requirements Determined by simple experiment.

The liquid-carrier for being adapted to the novel built Herbicidal combinations of the preparation present invention includes aromatic hydrocarbons, aliphatic hydrocarbon.It is particularly suitable Be polar solvent, such as alcohols and their ether and ester.In addition with vegetable oil and the molten fiber of methyl.Meanwhile, different liquids Mixture be also applicable.

The solid carrier for being adapted to the novel built Herbicidal combinations of the present invention is kieselguhr, Magnesiumaluminumsilicate, active hargil, height Ridge soil, clay, Gypsum Fibrosum, bentonite, white carbon, precipitated calcium carbonate, limestone, wood flour, corn starch, soluble starch etc..

The emulsifying agent of the complex herbicidal composition for being adapted to prepare the present invention can be anion and/or non-example type emulsifying agent, 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 of the complex herbicidal composition for being adapted to prepare the present invention can be alkylnaphthalene sulfonate, double（Alkyl）Naphthalene sulphur Hydrochlorate formaldehyde condensation products, naphthalene sulfonic acid-formaldehyde condensation product, alkylphenol-polyethenoxy based phosphates, alkylphenol-polyethenoxy base ether formaldehyde Condensate sulfate, alkylphenol polyoxyethylene phosphate ester, alkylphenol polyoxyethylene, Oleum Ricini ethylene oxide adduct, ring Oxidative ethane-propylene oxide block copolymer, alkylphenol polyoxyethylene formaldehyde condensation are dirty, octyl phenol polyoxyethylene ether sulphuric acid Salt and methylcellulose.Such as sodium lignin sulfonate, calcium lignosulfonate, methyl naphthalene sulfonate formaldehyde condensate, sodium naphthalene sulfonate Formaldehyde condensation dirt, methanonaphthalene sodium sulfonate etc..

Other additives, can enumerate the carboxymethyl cellulose generally used with auxiliary agent form in preparation, ethylene glycol and Propylene Glycol etc..

Novel built Herbicidal combinations in the present invention can also contain coloring agent, such as inorganic pigment ferrum oxide, oxidation Titanium or Prussian blue；Organic dyestuff alizarin, azo dye, metal phthalocyanine orchid or kiton colors etc..

Can be with any commonly employed form using compositionss of the invention.The blade face Exemplary dosage forms of premix composition are：

GR:Granule

WP:Wettable powder

WG:Water dispersibles granule

SG:Soluble granule

SL:Soluble concentrate

EC:Cream

EW:Emulsion, aqueous emulsion

ME:Microemulsion

SC:Suspending agent

CS:Microcapsule suspending agent

OD:Oil-based suspension

SE:Suspension emulsion

Currently preferred dosage form can be Emulsion, aqueous emulsion, water dispersible granules, wettable powder, suspending agent, oil base hang Floating agent, suspension emulsion, microcapsule suspending agent etc..

For water dispersible granules, those skilled in the art are very familiar with completing the present invention using corresponding auxiliary agent.Dispersion Agent is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, alkylphenol polyoxyethylene, EO/PO block polyethers；Moistening Agent is selected from alkyl sulfate, alkylsulfonate, naphthalene sulfonate, sodium lignin sulfonate, fatty alcohol-polyoxyethylene ether, alkyl phenol polyoxy Vinyl Ether；Disintegrating agent selected from ammonium sulfate, sodium sulfate, Sodium Chloride, ammonium chloride, carbamide, sucrose, glucose, carboxymethyl cellulose, can Molten starch, polyvinylpyrrolidone；Binding agent is selected from polyvinyl alcohol, soluble starch, dextrin, xanthan gum, carboxymethyl (ethyl) Cellulose family；Filler is selected from kieselguhr, Kaolin, white carbon, precipitated calcium carbonate, Pulvis Talci, attapulgite, potter's clay.

To wettable powder, the auxiliary agent that can be used has：Dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulphur Hydrochlorate；Wetting agent is selected from alkyl sulfate, alkylsulfonate, naphthalene sulfonate；Filler is selected from ammonium sulfate, carbamide, sucrose, Fructus Vitis viniferae Sugar, kieselguhr, Kaolin, white carbon, precipitated calcium carbonate, Pulvis Talci, attapulgite, potter's clay.

To suspending agent, the auxiliary agent that can be used has：Dispersant selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, TERSPERSE 2425 (Huntsman Corporation of the U.S. produces, alkyl naphthalene sulfonic acid salt)；Emulsifying agent is (general selected from Nongru-700 # Name：Alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, this disk -60# (common names：Sorbitan monostearate), breast Agent T-60 (common name：Sorbitan monostearate polyoxyethylene ether), agriculture breast 1601# (common name：Phenethyl phenol Polyoxyethylene poly-oxygen propylene aether), TERSPERSE 4894 (Huntsman Corporation of U.S. product)；Wetting agent is selected from alkyl phenol polyoxy Vinyl ethers formaldehyde condensation products sulfate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyoxyethylene groups ether phosphate, Alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE2500 (Huntsman Corporation of U.S. product)；Thickening agent is selected from Xanthan gum, polyvinyl alcohol, bentonite, aluminium-magnesium silicate；Preservative is selected from formaldehyde, benzoic acid, sodium benzoate；Defoamer is organosilicon Class defoamer；Antifreezing agent is selected from ethylene glycol, Propylene Glycol, glycerol, carbamide, inorganic salts (such as Sodium Chloride).

To oil-based suspension, available auxiliary agent has：Dispersant is selected from polycarboxylate, lignosulfonates, alkyl naphthalene sulfonic acid Salt (dispersing agent NNO), TERSPERSE 2425, emulsifying agent is selected from BY (castor oil polyoxyethylene ether) series emulsifying agent (BY- 110th, BY-125, BY-140) Nongru-700 # (common names：Alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, this disk- 60# (common names：Sorbitan monostearate), Tween-60 # (common names：Sorbitan monostearate Polyethylene oxide Ether), agriculture breast 1601# (common name：Phenethyl phenol polyoxyethylene poly-oxygen propylene aether), TERSPERSE4894；Wetting agent is selected from Alkylphenol-polyethenoxy base ether formaldehyde condensation products sulfate, alkylphenol polyoxyethylene phosphate ester, phenethyl phenol polyoxyethylene groups Ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500；Thickening agent is selected from white carbon, poly- second Enol, bentonite, aluminium-magnesium silicate；Antifreezing agent is selected from ethylene glycol, Propylene Glycol, glycerol, carbamide, inorganic salts (such as Sodium Chloride)； Stabilizer is selected from epoxy soybean oil, epoxychloropropane, triphenyl phosphate；Disperse medium selected from soybean oil, Oleum Brassicae campestriss, Semen Maydis oil, Methyl oleate, diesel oil, machine oil, mineral oil.

The Exemplary dosage forms of suitable bucket mixing composition are solution, dilution Emulsion, suspending agent or its mixing and powder.

Generally, bucket mixing composition is to use solvent（Such as water）Dilution containing different pesticide, and optionally further auxiliary agent One or more premix composition.

Typically, reactive compound of the bucket mixture in blade face comprising 0.1-20%, particularly 0.1-15%, and 99.9%-80%, especially It is the solid-state or liquid flux of 99.9-85%（Comprising solvent such as water）, wherein auxiliary agent can be the content based on bucket mixture The surfactant of 0-20%, particularly 0.1-15%.

Generally active compound component of the pre-mixing agent of foliage applying comprising 0.1-99.9%, particularly 1-95%, and 99.9- The solid-state or liquid flux of 0.1%, particularly 99-5%（Comprising such as solvent such as water）, wherein auxiliary agent can be with pre-mixing agent Basis, the surfactant of content 0-50%, particularly 0.5-40%.

The formulated compositionss of the present invention include 0.5-99.9%, particularly 1-95%, it is advantageously that the activity of 1-50% The solid or liquid adjuvants of component cpd, and 99.5-0.1%, particularly 99-5% mass（Comprising such as solvent such as water）, wherein institute State auxiliary agent（Or adjuvant）It can be the surfactant of the 0-50% based on pre-mixing agent quality, particularly 0.5-40%.

The method that the present invention also provides a kind of undesirable plant of collaboration preventing and treating, including by described novel built weeding Compositionss are applied on the growth place of undesirable plant or leaf or stem.The undesirable plant be broad leaved weed and Sedge weed.The undesirable plant is preferably barnyard grass（Echinochloa crusgalli L.Beauv）, rice barnyard grass, Ear leaf water Herba Amaranthi tricoloriss, Herba Cyperi Difformiss（Cyperus difformis Linn.）, flat stalk Fischer grass（Scirpus planiculmis）, footpath between fields Serve, Herba Caricis Phacotae（Cyperus rotundus L.）, Rhizoma Alismatis（Alismataceae）, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.) （Sagittariatrifolia）, sesbania（Sesbania exaltata）, ring flower（Commelina diffusa）, Herba monochoriae vaginaliss （Monochoria vaginalis）, Herba Clinopodii Polycephali（Equisetum ramosissimum Desf）, Herba Commelinae（Herba Commelinae）, Herba Murdanniae Triquetrae（Mllrdanniatriguetra）, wild Corm Eleocharitiss（Heleocharis plantagineiformis Tang et Wang）, Herba Fimbristylis miliaceae（Fimbristylis miliacea(L.) Vahl）, cyperus iria（Cyperus Iria L.）.

The method that the present invention also provides a kind of undesirable plant of collaboration preventing and treating, including by novel built Herbicidal combination Thing is applied in the presence of other reproductive parts of useful crop plants plant, the seed of useful crop plants or useful crop plants.It is wherein described Useful crop plants are Semen Maydiss, Oryza sativa L., Semen Tritici aestivi.It is preferred that rice crop.

According to formulation properties, can with it is anticipated that object and popular environment come selected from application process, such as blade face, be impregnated with, spray Mist, dust, scatter and selected.

Suitable for the compositionss of the present invention combination cooperative effective quantity can according to the such as weed size of condition at that time and Density, time of application, method of application, weather, soil regime, features of terrain, species of target crop etc. change.Practicing In, about 0.10kg/ha-1.00kg/ha, the preferably from about administration of the active component of 0.25 kg/ha-0.75 kg/ha are provided enough Rate is suitable.

The present invention is had the advantages that compared with prior art：

The invention provides a kind of complex herbicidal composition, said composition by by penoxsuam and MCPA,MCP,methoxone and its Derivant is compounded, and new compositions is applied to paddy field for preventing and treating grassy weed, broad leaved weed and sedge weed, is carried High prevention effect is obvious to the prevention effect of ear leaf water Herba Amaranthi tricoloriss, Herba Caricis Phacotae, Herba Cyperi Difformiss, flat stalk Fischer grass, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.), Lindernia procumbens (Krock.) Phillcox. Improve, slow down the resistance problem of penoxsuam.

From the following embodiments can be seen that, Herbicidal combinations of the invention have good activity of weeding, and single The activity of weeding of reactive compound is relatively low, and the activity of the combination of the present invention exceedes the simple addition work of each single compound activity With.

When the activity of weeding of active compound exceedes active sum when each reactive compound is used alone, then deposit In potentiation.

Example of formulations

Embodiment 1：The 20% MCPA,MCP,methoxone sodium oil-suspending agent of penoxsuam++ 1%

Penoxsuam 20%

MCPA,MCP,methoxone sodium 1%

Methyl naphthalene sulfonate formaldehyde condensate 10%

Bentonite 1%

Glycerol 5%

Semen Maydis oil complements to 100%

By each components such as active component, dispersant, wetting agent and Semen Maydis oil according to formula ratio mix homogeneously, it is ground And/or after high speed shear, obtain+1% MCPA,MCP,methoxone sodium oil-suspending agent of 20% penoxsuam.

+ 10% MCPA,MCP,methoxone potassium wettable powder of 2 2% penoxsuam of embodiment

Penoxsuam 10%

MCPA,MCP,methoxone potassium 2%

Sodium lauryl sulphate 10%

Sodium lignin sulfonate 5%

White carbon 10%

Kaolin complements to 100%

Active component, various auxiliary agents and filler etc. are mixed by the proportional components of formula, Jing after ultra-fine pulverizer disintegrating, i.e., Obtain+10% MCPA,MCP,methoxone potassium wettable powder of 2% penoxsuam.

+ 50% MCPA,MCP,methoxone sodium wettable powder of 3 0.1% penoxsuam of embodiment

Penoxsuam 0.1%

MCPA,MCP,methoxone sodium 50%

Calcium dodecyl benzene sulfonate 1%

Sodium lignin sulfonate 2%

White carbon supply is to 100%

Active component, various auxiliary agents and filler etc. are mixed by the proportional components of formula, Jing after ultra-fine pulverizer disintegrating, i.e., Obtain+50% MCPA,MCP,methoxone sodium wettable powder of 0.1% penoxsuam.

+ 1% MCPA,MCP,methoxone isopropyl amine salt water dispersible granules of 4 0.1% penoxsuam of embodiment

Penoxsuam 0.1%

MCPA,MCP,methoxone isopropyl amine salt 1%

Sodium lignin sulfonate 4%

Sodium lauryl sulphate 5%

Carbamide 5%

Kaolin complements to 100%

By active component, dispersant, wetting agent, disintegrating agent and filler in formula ratio mix homogeneously, through air-flow powder Wettable powder is broken into, a certain amount of water mixing extruding is added and is made material.0.1% penoxsuam+1% is obtained after drying screening MCPA,MCP,methoxone isopropyl amine salt water dispersible granules.

The different monooctyl ester cream of+0.1% MCPA,MCP,methoxone of 5 50% penoxsuam of embodiment

Penoxsuam 50%

The different monooctyl ester of MCPA,MCP,methoxone 0.1%

Ethoxylated castor oil 5%

Calcium dodecyl benzene sulfonate 3%

Dimethyl sulfoxide complements to 100%

Mentioned component is proportionally prepared, homogeneous phase is uniformly mixing to obtain.

+ 0.1% MCPA,MCP,methoxone isopropyl acid of 6 10% penoxsuam of embodiment oil suspension emulsion

Penoxsuam 10%

MCPA,MCP,methoxone isopropyl acid 0.1%

Methyl naphthalene sulfonate formaldehyde condensate 5%

Ethoxylated castor oil 3%

Bentonite 1%

Aromatic solvent 100 20%

Soybean oil complements to 100%

Penoxsulam will be obtained after penoxsuam, methyl naphthalene sulfonate formaldehyde condensate ground and/or high speed shear Amine oil-suspending agent；MCPA,MCP,methoxone isopropyl acid, aromatic solvent 100, ethoxylated castor oil mixing and stirring are obtained into diformazan four The cream of chlorine isopropyl acid；The MCPA,MCP,methoxone isopropyl acid for obtaining is added in penoxsuam oil-suspending agent, 10% 5 fluorine is obtained Sulphur grass+0.1% MCPA,MCP,methoxone isopropyl acid suspension emulsion of amine.

+ 30% mcpa sodium wettable powder of 7 0.1% penoxsuam of embodiment

Penoxsuam 0.1%

Mcpa sodium 30%

Sodium lauryl sulphate 10%

Sodium lignin sulfonate 5%

White carbon 10%

Kaolin complements to 100%

Said components are mixed in proportion, and are ground, crushed, be prepared into wettable powder.

+ 0.1% tetra chloro-butyric acid of dimethyl butyl ester water dispersible granules of 8 80% penoxsuam of embodiment

Penoxsuam 80%

Tetra chloro-butyric acid of dimethyl butyl ester 0.1%

MODIFIED LIGNOSULPHONATE 5%

Sodium lauryl sulphate 5%

Carbamide 5%

Kaolin complements to 100%

By penoxsuam active component, dispersant, wetting agent, disintegrating agent and filler in formula ratio mix homogeneously, Through comminution by gas stream into wettable powder；Add tetra chloro-butyric acid of dimethyl butyl ester mix homogeneously；Add a certain amount of water mixing Material is made in extruding.+ 0.1% tetra chloro-butyric acid of dimethyl butyl ester water dispersible granules of 80% penoxsuam are obtained after drying screening.

+ 10% MCPA,MCP,methoxone sodium aqueous emulsion of 9 0.1% penoxsuam of embodiment

Oil phase：

Penoxsuam 0.1%

Methyl oleate 10%

Ethoxylated castor oil 5%

Water phase：

MCPA,MCP,methoxone sodium 60%

The sodium salt 1% of the LOMAR PWA EINECS 246-676-2-formaldehyde condensation products of sulfonation

Water complements to 100%

Penoxsuam is dissolved in methyl oleate, adds ethoxylated castor oil to obtain oil phase；According to formula by two The sodium salt of the LOMAR PWA EINECS 246-676-2-formaldehyde condensation products of first tetrachloro sodium salt and sulfonation, water, mix homogeneously obtain water phase；Under agitation by oil It is added to water and mutually obtains aqueous emulsion.

+ 40% MCPA,MCP,methoxone sodium wettable powder of 10 20% penoxsuam of embodiment

Penoxsuam 20%

MCPA,MCP,methoxone sodium 40%

Sodium lignin sulfonate 1%

Sodium lauryl sulfate 2%

The silicic acid 1% of high degree of dispersion

Kaolin complements to 100%

Said components are mixed in proportion, and are ground, crushed, be prepared into wettable powder.

+ 80% MCPA,MCP,methoxone sodium coated granule of 11 0.1% penoxsuam of embodiment

Penoxsuam 0.1%

MCPA,MCP,methoxone sodium 80%

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 by the carrier of Polyethylene Glycol moistening.In this way Dust-free coated granules agent can be obtained.

The 12 40% MCPA,MCP,methoxone potassium wettable powder of penoxsuam++ 2% of embodiment

Penoxsuam 40%

MCPA,MCP,methoxone potassium 2%

Sodium lauryl sulphate 1%

Sodium lignin sulfonate 1%

Kaolin complements to 100%

Said components are mixed in proportion, and are ground, crushed, be prepared into wettable powder.

+ 30% mcpa sodium of 13 5% penoxsuam of embodiment extrudes granule

Penoxsuam 5%

MCPA,MCP,methoxone sodium 30%

Sodium lignin sulfonate 4%

Carboxymethyl cellulose 2%

Kaolin complements to 100%

Active component is mixed with auxiliary agent and ground, mixture water-wet.The mixture is extruded, then in air stream Middle drying.

The 14 1% MCPA,MCP,methoxone sodium suspending agent of penoxsuam++ 20% of embodiment

Penoxsuam 1%

MCPA,MCP,methoxone sodium 20%

Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%

MODIFIED LIGNOSULPHONATE 5%

Xanthan gum 1%

Bentonite 1%

Glycerol 5%

Water complements to 100%

Above-mentioned each component is mixed in proportion, and Jing sand millings, it is prepared into suspending agent.

+ 30% MCPA,MCP,methoxone thioethyl ester ZC of 15 1% penoxsuam of embodiment

Atlox 4913 4%

Citric acid 0.05%

Catalyst 0.1%

Water 13%

MCPA,MCP,methoxone thioethyl ester 30%

PAPI 1.35%

Solvesso 200 10%

Atlox4913 16%

Dispersant LFH 0.3%

Defoamer 0.16%

Carbamide 8.4%

Penoxsuam 1%

Water complements to 100%

The oil phase that PAPI, MCPA,MCP,methoxone thioethyl ester, Solvesso 100 are formed adds water-soluble containing Atlox4913 In liquid, emulsion is formed.Then heat and be incubated 50^oCatalyst reaction is added 2 hours under C.MCPA,MCP,methoxone is obtained after cooling The microcapsule of thioethyl ester.

Atlox 4913, dispersant LFH, defoamer, carbamide, penoxsuam and water are mixed in proportion, and Jing Sand milling, is prepared into suspending agent.

The MCPA,MCP,methoxone thioethyl ester microcapsule for obtaining is added in the suspending agent of penoxsuam, 1% is uniformly mixing to obtain + 30% MCPA,MCP,methoxone thioethyl ester ZC of penoxsuam.

+ 30% tetra chloro-butyric acid of dimethyl suspended emulsion of 16 5% penoxsuam of embodiment

Penoxsuam 5%

Tetra chloro-butyric acid of dimethyl 30%

Solvesso 200 10%

Ethoxylated castor oil 4%

Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 5%

MODIFIED LIGNOSULPHONATE 5%

Xanthan gum 1%

Bentonite 1%

Glycerol 5%

Water complements to 100%

Tetra chloro-butyric acid of dimethyl is dissolved in Solvesso 200, ethoxylated castor oil is added, is obtained MCPA,MCP,methoxone fourth The cream of acid；

Penoxsuam, fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium, above-mentioned each component are mixed in proportion Uniformly, and Jing sand millings, it is prepared into suspending agent.

Oil phase containing tetra chloro-butyric acid of dimethyl is added in suspending agent containing penoxsuam, suspended emulsion is obtained.

+ 0.1% MCPA,MCP,methoxone second thioesters cream of 17 30% penoxsuam of embodiment

Penoxsuam 30%

MCPA,MCP,methoxone second thioesters 0.1%

Ethoxylated castor oil 5%

Calcium dodecyl benzene sulfonate 3%

Solvesso100 complements to 100%

Above-mentioned each component is mixed, is stirred to obtaining transparent homogeneous phase.

+ 95% MCPA,MCP,methoxone sodium of 19 5% penoxsuam of embodiment

Penoxsuam 5%

MCPA,MCP,methoxone sodium 95%

By penoxsuam, MCPA,MCP,methoxone sodium proportionally mix homogeneously.

Biological test example

When active compound combinations effect more than the effect when each reactive compound is administered alone summation when, deposit In synergistic function.The predictive role of the particular combination of two kinds of reactive compounds can be using so-called " Colby formula " (ginseng See S.R. Colby, " Calculating Synergistic and Antagonistic Responses of Herbicide Combinations ", Weeds 1967,15,20-22) it is calculated as below:If

X be when using consumption be mg/ha or concentration for mppm reactive compound A when activity；

Y be when using consumption be ng/ha or concentration for nppm reactive compound B when activity, be expressed as accounting for and do not locate The percentage rate of reason control；

E be when using consumption be m and n g/ha or concentration for m and n ppm reactive compound A and B when work Property,

So

If the activity of actual observation（O）More than expection activity（E）, then said composition is super to be added and makees with potentiation With.

Above-described embodiment is several preferable compound mode of novel built Herbicidal combinations in the present invention, in order to embody In place of beneficial effects of the present invention, below we the novel built Herbicidal combinations allocated in above-described embodiment will be tried Test.

In order to preferably explain the invention main points of the present invention, several preferably embodiments are provided below.

Inventor has been carried out to the different ratio of penoxsuam and MCPA,MCP,methoxone sodium by substantial amounts of screening test in a large number Test and preventive effect analysis, it is found that there is resulting Herbicidal combinations potentiation to act in certain ratio range, And the simple addition of not exclusively two kinds of medicaments, it is illustrated with following bioassay example.

Test：Herbicidal effect of the present invention in live field, transplant field and seedling throwing field is tested respectively

Test method

Test one：Herbicidal effect of the present invention in live field

Live field is divided into direct-sowing rice and direct-sowing dry field, due to direct-sowing dry field moisture compared with direct-sowing rice will much less, Its soil is relatively dry, so it is inherently few to be suitable for the species of herbicide, and direct-sowing dry field weed generating capacity is big, species also compared with For complexity, in order to embody the good characteristic of novel built Herbicidal combinations of the present invention, in this test, we with direct-sowing dry field are Weeding object.Direct-sowing dry after seedling early stage, the weeds that the main difficulty in field is prevented and kill off be barnyard grass, rice barnyard grass, Herba Clinopodii Polycephali, Herba Commelinae, Herba Murdanniae Triquetrae, Wild Corm Eleocharitiss, Herba Cyperi Difformiss, Herba Fimbristylis miliaceae, cyperus iria, Herba Caricis Phacotae, ear leaf water Herba Amaranthi tricoloriss.

By the way of now with the current, we are tested medicament with the formula inside embodiment.Unused mistake is removed Soil in the rice field of careless agent is used as culture soil.By the barnyard grass of direct-sowing dry upper one year field collection, rice barnyard grass, Herba Clinopodii Polycephali, duck plantar Grass, Herba Murdanniae Triquetrae, wild Corm Eleocharitiss, Herba Cyperi Difformiss, Herba Fimbristylis miliaceae, cyperus iria, Herba Caricis Phacotae, the seed of ear leaf water Herba Amaranthi tricoloriss and brood body leaching Soil surface is uniformly sprinkling upon after bubble, waits which to grow 3 ~ 5 leaves, then its dispenser is processed.

As a result with analysis：

To barnyard grass, rice barnyard grass, Herba Clinopodii Polycephali, Herba Commelinae, Herba Murdanniae Triquetrae, ear leaf water Herba Amaranthi tricoloriss, Herba Caricis Phacotae, sesbania, wild water chestnut after 3 weeks after spray The survey result of the actual decrement of shepherd's purse, Herba Cyperi Difformiss, Herba Fimbristylis miliaceae, cyperus iria：

Test two：The present invention is transplanting the herbicidal effect in field

The weeds that transplant field mainly occurs have barnyard grass, flat stalk Fischer grass, Herba monochoriae vaginaliss, short Rhizoma sagittariae sagittifoliae, Lindernia procumbens (Krock.) Phillcox., Herba Murdanniae Triquetrae, abnormal shape Dried tuber, cyperus iria, Herba Fimbristylis miliaceae, the weeds of wild these kinds of Corm Eleocharitiss are used as weeding object.

By the way of now with the current, we are tested medicament with the formula inside embodiment.Upper one year is transplanted The barnyard grass of field collection, flat stalk Fischer grass, sesbania, Herba monochoriae vaginaliss, short Rhizoma sagittariae sagittifoliae, Lindernia procumbens (Krock.) Phillcox., Herba Murdanniae Triquetrae, Herba Cyperi Difformiss, cyperus iria, day According to soil surface is uniformly sprinkling upon after Herba Fimbristylis dichotomae, the seed of wild Corm Eleocharitiss and brood body immersion, which is waited to grow 3 ~ 5 leaves.Then which is applied Medicine process.

As a result with analysis：

Barnyard grass after spraying 3 weeks, flat stalk Fischer grass, Herba monochoriae vaginaliss, short Rhizoma sagittariae sagittifoliae, Lindernia procumbens (Krock.) Phillcox., Herba Murdanniae Triquetrae, Herba Cyperi Difformiss, cyperus iria, Herba Fimbristylis miliaceae, the survey result of the actual decrement of wild Corm Eleocharitiss：

Test three：Herbicidal effect of the present invention in rice transplanting field

Seedling throwing field is shorter due to seedling stage, and typically at 15 ~ 25 days, available herbicide is fewer, main appearance therebetween Weeds have barnyard grass, Herba monochoriae vaginaliss, Herba Clinopodii Polycephali, cyperus iria, sunshine floating, Lu grass etc..Will be using these weeds as removing in this test Careless object.

By the way of now with the current, we are tested medicament with the formula inside embodiment.Unused mistake is removed Soil in the rice field of careless agent is used as culture soil.Barnyard grass that rice transplanting upper one year field is gathered, Herba monochoriae vaginaliss, Herba Clinopodii Polycephali, crack rice Soil surface is uniformly sprinkling upon after dried tuber, the seed of Herba Fimbristylis miliaceae, Lu grass and brood body immersion, waits which to grow 3 ~ 5 leaves.Then To its dispenser.

As a result with analysis：

3 weeks after spray are reduced to barnyard grass, Herba monochoriae vaginaliss, short Rhizoma sagittariae sagittifoliae, Herba Clinopodii Polycephali, cyperus iria, Herba Fimbristylis miliaceae, Lu grass reality The survey result of amount：

Above-mentioned test be respectively in the Herbicidal Testing Trials in live field, transplant field and rice transplanting field, can from above-mentioned table Go out, the novel built Herbicidal combinations that the present invention is provided are used alone relative to herbicide single dose to be made with obvious potentiation With.

Test four：：Herbicidal effect of the present invention in Semen Maydiss field

Medicament is tested according to the proportioning of the present invention by the way of now with the current.The jade of herbicide will be not used The soil of meter Tian Zhong is used as culture soil.Barnyard grass that corn field between upper one year is collected, Herba Digitariae, Herba Eleusines Indicae, Herba Setariae Viridis, wild swallow Wheat, Radix seu Herba Astilbes rivulariss, multitude, Herba Amaranthi tricoloriss, Herba Rorippae Islandicae, Herba Commelinae, Herba Capsellae, Herba Portulacae, Herba Salsolae Collinae, Herba Bidentis Tripartitae, wild western pawl Seedling, artemisiifolia, lettuce sell dish, Soil surface is uniformly sprinkling upon after field thistle seed and brood body immersion, waits which to grow 3 ~ 5 leaves.Then to its dispenser.

As a result with analysis：

After spray 3 weeks to barnyard grass, Herba Digitariae, Herba Eleusines Indicae, Herba Setariae Viridis, wild oat, Radix seu Herba Astilbes rivulariss, multitude, Herba Amaranthi tricoloriss, Herba Rorippae Islandicae, Herba Commelinae, Herba Capsellae, Herba Portulacae, Herba Salsolae Collinae, Herba Bidentis Tripartitae, wild western pawl Seedling, artemisiifolia, lettuce sell dish, the survey result of the actual decrement of field thistle.

。

Claims (6)

1. a kind of method of control barnyard grass, it is characterised in that the compounding comprising penoxsuam and the different monooctyl ester of MCPA,MCP,methoxone is removed Careless compositionss are applied on the growth place of undesirable plant or leaf or stem, and the penoxsuam and MCPA,MCP,methoxone are different pungent Ester ratio range by weight percentage is 1:2～1:16.

2. method according to claim 1, it is characterised in that described complex herbicidal composition is planted in useful crop plants Apply in the presence of other reproductive parts of strain, the seed of useful crop plants or useful crop plants.

3. method according to claim 1, it is characterised in that the useful crop plants are Oryza sativa L. or Semen Maydiss.

4. method according to claim 1, it is characterised in that the growth place of undesirable plant is Oryza sativa L. water direct seeding Field, direct-sowing dry paddy field, transplanted rice field, rice seedling throwing field, corn field.

5. method according to claim 1, the complex herbicidal composition can be configured to any dosage form for agriculturally allowing.

6. complex herbicidal composition according to claim 1, it is characterised in that：The dosage form of the complex herbicidal composition is Wettable powder, cream, suspending agent, oil-suspending agent, microcapsule, microemulsion, aqueous emulsion, suspended emulsion, water dispersible granules, ZC.