CN103202305A - Compound herbicide composition - Google Patents

Abstract

The invention provides a compound herbicide composition. The compound herbicide composition is prepared from a first active ingredient and second active ingredients, wherein the first active ingredient is penoxsulam; the second active ingredients are 2-methyl-4-chlorophenoxy acetic acid or a derivative thereof; and the weight percent ratio of the two active ingredients is (800:1)-(1:800). The compound herbicide composition has the beneficial effects that by carrying out binary compounding on the penoxsulam and 2-methyl-4-chlorophenoxy acetic acid or the derivative thereof, the new composition is applied to controlling grassy weeds, broadleaf weeds and cyperaceae weeds in the rice fields, has an ideal control effect, has a control effect obviously higher than the effect when the single dosage is independently used, can basically kill the main weeds in the rice fields, slows down generation of resistance of the weeds, is safe for crops and meets the safety requirements of pesticide preparations.

Description

Composite Herbicidal combinations

Technical field

The present invention relates to a kind of composite Herbicidal combinations, relate in particular to and a kind of penoxsuam, methoxone and derivative thereof are carried out binary built, be applied to the novel built Herbicidal combinations of paddy field.

Background technology

Paddy rice is one of world's staple food crop, and nearly half population all is food with rice in the world, produces each continent that spreads all over except 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.Be one of important crops in rice in China, the rice in China sowing area accounts for 1/4 of national cereal crops, and 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; 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.

Penoxsuam (penoxsulam) is to use weed killer herbicide behind the seedling of being developed by U.S. Tao Nongke company (Dow AgroSciences), and it works by suppressing acetolactate synthestase (ALS).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.

Penoxsuam, English common name penoxsulam, 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.The action target of this medicament is acetolactate synthestase (ALS), it is documented that anti-sulfonylurea herbicide significantly is lower than other sulfonylurea medicament the cross resistance level of triazolopyrimidine sulfonamides herbicide, and the activity of weeding of penoxsuam and other ALS inhibitor there is evident difference.

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 again, 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.

Methoxone, English name 2-Methyl-4-chlorophenoxyacetic acid, chemical formula: CH3 (Cl) C6H3OCH2COOH; Methoxone is widely used on the crops such as paddy rice, corn, wheat, is used for preventing and kill off broad leaved weed, and crop is had good safety.

Methoxone and derivative thereof are to inhale the conduction hormone herbicide in the phenoxy acetic acid class selectivity, and Yi Weigen and leaf portion absorb and conduction, can destroy the conducting tissue of dicotyledon, making grows is interfered, chap or cracking are expanded in cauline leaf distortion, basal part of stem, and swollen splitting gone rotten and dead.Suitable paddy rice can be prevented and kill off most of sedge weed and broad leaved weed.The methoxone derivative is methoxone isopropyl acid, tetra chloro-butyric acid of dimethyl, tetra chloro-butyric acid of dimethyl butyl ester, the different monooctyl ester of methoxone, methoxone second thioesters, methoxone sulfo-ethyl ester, mcpa sodium, methoxone sylvite, methoxone isopropyl amine salt.

Summary of the invention

The present invention seeks to provides a kind of composite Herbicidal combinations at above-mentioned weak point, penoxsuam, methoxone and derivative thereof are carried out binary built, scientifically make up, the herbicidal effect that is better than single agent of penoxsuam, methoxone, remedy both and kill the wideless defective of grass spectrum, and grassy weed, broadleaved herb and nutgrass flatsedge are shown synergistic effect; A drug can be controlled weeds in paddy field effectively.

The composite Herbicidal combinations of the present invention is to take following technical scheme to realize:

The composite Herbicidal combinations of the present invention comprises

First active component: penoxsuam,

Second active component: methoxone and derivative thereof,

Above-mentioned two kinds of active component mixture ratio by weight percent scopes are 800:1～1:800, preferred 500:1～1:500, more preferably 300:1～1:300, preferred 100:1～1:100, preferred 20:1～1:20. more again

Described methoxone derivative is methoxone isopropyl acid, tetra chloro-butyric acid of dimethyl, tetra chloro-butyric acid of dimethyl butyl ester, the different monooctyl ester of methoxone, methoxone second thioesters, methoxone sulfo-ethyl ester, mcpa sodium, methoxone sylvite, methoxone isopropyl amine salt.

Described composite Herbicidal combinations can be mixed with agricultural and go up any formulation that allows.Preferred wetting powder, missible oil, suspending agent, oil-suspending agent, microcapsules, microemulsion, aqueous emulsion, suspended emulsion, water dispersible granules, ZC.

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 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 is preferably barnyard grass grass (Echinochloa crusgalli L.Beauv), the rice barnyard grass, ear leaf water amaranth, difformed galingale herb (Cyperus difformis Linn.), flat stalk Fischer grass (Scirpus planiculmis), Procumbent Falsepimpernel, convexutricle sedge herb (Cyperus rotundus L.), rhizoma alismatis (Alismataceae), angustifolia arrowhead herb (Sagittariatrifolia), sesbania (Sesbania exaltata), ring flower (Commelina diffusa), Monochoria vaginalis (Monochoria vaginalis), Drilgrass (Equisetum ramosissimum Desf), dayflower (Herba Commelinae), triquetrousc murdannia herb (Mllrdanniatriguetra), wild water chestnut (Heleocharis plantagineiformis Tang et Wang), miliary fimbristylis herb (Fimbristylis miliacea (L.) Vahl) cyperus iria (Cyperus iria L.).

The present invention also provide a kind of collaborative control of undesirable plant method, comprise the novel built Herbicidal combinations 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 cereal, the preferred water rice crops.

The present invention compared with prior art has following beneficial effect:

The composite Herbicidal combinations of the present invention is by carrying out penoxsuam and methoxone and derivative thereof composite, new compositions is applied to the paddy field is used for control grassy weed, broad leaved weed and sedge weed, improved control efficiency, control efficiency to ear leaf water amaranth, convexutricle sedge herb, difformed galingale herb, flat stalk Fischer grass, angustifolia arrowhead herb, Procumbent Falsepimpernel obviously improves, and has slowed down the resistance problem of penoxsuam.

The composite Herbicidal combinations of the present invention, penoxsuam, methoxone and derivative thereof are carried out binary built, scientifically make up, the herbicidal effect that is better than single agent of penoxsuam, methoxone, remedy both and kill the wideless defective of grass spectrum, and grassy weed, broadleaved herb and nutgrass flatsedge are shown synergistic effect; A drug can be controlled weeds in paddy field effectively.

Embodiment

The combination of active principles of different agricultural chemicals is made mixture, is a kind of effective and efficient manner that exploitation at present and development novel pesticide and control agricultural go up resistant weed.The agricultural chemicals of different cultivars shows summation action, synergistic effect and three kinds of type of action of antagonism after mixing usually; Its type of action needs a large amount of tests to examine or check.

We carry out binary built with penoxsuam, methoxone etc., scientifically make up, and can control rice field, corn field weed effectively, by compound synergic, improve field efficacy, reduce the consumption of agricultural chemicals, suspension of pesticide resistance generation speed is the important means of integrated control pest.

A kind of novel built Herbicidal combinations provided by the invention comprises

First active component: penoxsuam,

Second active component: methoxone and derivative thereof,

The inventor is by a large amount of screening tests, the different proportionings of penoxsuam, methoxone and derivative thereof test and preventive effect analysis have been carried out a large amount of, discovery is in certain ratio range, resulting Herbicidal combinations has synergistic effect, and is not only the simple addition of two kinds of medicaments.

The invention provides a kind of novel built Herbicidal combinations, comprise

First active component: penoxsuam,

Second active component: methoxone and derivative thereof,

Above-mentioned two kinds of active component mixture ratio by weight percent scopes are 1:800～800:1, preferred 500:1～1:500, more preferably 300:1～1:300, more preferably 100:1～1:100, preferred 20:1～1:20. again

The methoxone derivative is methoxone isopropyl acid, tetra chloro-butyric acid of dimethyl, tetra chloro-butyric acid of dimethyl butyl ester, the different monooctyl ester of methoxone, methoxone second thioesters, methoxone sulfo-ethyl ester, mcpa sodium, methoxone sylvite, methoxone isopropyl amine salt.

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 auxiliary agent that uses in the novel built 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 novel built 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 composite 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 composite 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 emulsion, aqueous emulsion, water dispersible granules, wetting powder, suspending agent, oil-based suspension, suspension emulsion, microcapsule suspending agent etc.

For water dispersible granules, those skilled in the art are familiar with the corresponding auxiliary agent of use 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).

To oil-based suspension, available 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 as ratio of solvent such as water) particularly, 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 novel built Herbicidal combinations is applied on the growth place or leaf or stem of undesirable plant.Described undesirable plant is broad leaved weed and sedge weed.Described undesirable plant is preferably barnyard grass grass (Echinochloa crusgalli L.Beauv), the rice barnyard grass, ear leaf water amaranth, difformed galingale herb (Cyperus difformis Linn.), flat stalk Fischer grass (Scirpus planiculmis), Procumbent Falsepimpernel, convexutricle sedge herb (Cyperus rotundus L.), rhizoma alismatis (Alismataceae), angustifolia arrowhead herb (Sagittariatrifolia), sesbania (Sesbania exaltata), ring flower (Commelina diffusa), Monochoria vaginalis (Monochoria vaginalis), Drilgrass (Equisetum ramosissimum Desf), dayflower (Herba Commelinae), triquetrousc murdannia herb (Mllrdanniatriguetra), wild water chestnut (Heleocharis plantagineiformis Tang et Wang), miliary fimbristylis herb (Fimbristylis miliacea (L.) Vahl), cyperus iria (Cyperus iria L.).

The present invention also provide a kind of collaborative control of undesirable plant method, comprise the novel built Herbicidal combinations 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.The preferred water rice crops.

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 weeds leaf age and density, 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 present invention compared with prior art has following beneficial effect:

The invention provides a kind of composite Herbicidal combinations, said composition is by carrying out penoxsuam and methoxone and derivative thereof composite, new compositions is applied to the paddy field is used for control grassy weed, broad leaved weed and sedge weed, improved control efficiency, control efficiency to ear leaf water amaranth, convexutricle sedge herb, difformed galingale herb, flat stalk Fischer grass, angustifolia arrowhead herb, Procumbent Falsepimpernel obviously improves, and has slowed down the resistance problem of penoxsuam.

As can be seen, Herbicidal combinations of the present invention has good weeding activity from the following examples, and the activity of weeding of single reactive compound is lower, and the activity of combination of the present invention surpasses the simple summation action of each single compound activity.

During active sum when the activity of weeding of reactive compound combination surpasses each reactive compound and uses separately, then there is synergistic effect.

FORMULATION EXAMPLE

RealExecute routine 1:20% penoxsuam++ 1% methoxone sodium oil-suspending agent

Penoxsuam 20%

Methoxone sodium 1%

Methyl naphthalene sulfonate formaldehyde condensate 10%

Bentonite 1%

Glycerine 5%

Corn oil complements to 100%

Active component, dispersant, wetting agent and each component of corn wet goods ratio according to prescription is mixed, after grinding and/or high speed shear, obtain 20% penoxsuam+1% methoxone sodium oil-suspending agent.

Embodiment 2 2% penoxsuams+10% methoxone potassium wetting powder

Penoxsuam 10%

Methoxone potassium 2%

Lauryl sodium sulfate 10%

Sodium lignin sulfonate 5%

White carbon 10%

Kaolin complements to 100%

Ratio composition in prescription such as active component, various auxiliary agent and filler is mixed, after ultrafine crusher is pulverized, namely obtain 2% penoxsuam+10% methoxone potassium wetting powder.

Embodiment 3 0.1% penoxsuams+50% methoxone sodium wetting powder

Penoxsuam 0.1%

Methoxone sodium 50%

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, namely obtain 0.1% penoxsuam+50% methoxone sodium wetting powder.

Embodiment 4 0.1% penoxsuams+1% methoxone isopropyl amine salt water dispersible granules

Penoxsuam 0.1%

Methoxone isopropyl amine salt 1%

Sodium lignin sulfonate 4%

Lauryl sodium sulfate 5%

Urea 5%

Kaolin complements to 100%

Active component, dispersant, wetting agent, disintegrant and the filler ratio in prescription is mixed, be ground into wetting powder through air-flow, add a certain amount of water mixing extruding again and make material.Obtain 0.1% penoxsuam+1% methoxone isopropyl amine salt water dispersible granules after the drying screening.

The embodiment 5 50% penoxsuams+different monooctyl ester missible oil of 0.1% methoxone

Penoxsuam 50%

The different monooctyl ester 0.1% of methoxone

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+0.1% methoxone isopropyl acid oil suspension emulsion

Penoxsuam 10%

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%

Penoxsuam, methyl naphthalene sulfonate formaldehyde condensate are obtained the penoxsuam oil-suspending agent after grinding and/or high speed shear; Methoxone isopropyl acid, aromatic solvent 100, ethoxylated castor oil mixing and stirring are obtained the missible oil of methoxone isopropyl acid; The methoxone isopropyl acid that obtains is joined in the penoxsuam oil-suspending agent, obtain 10% penoxsuam+0.1% methoxone isopropyl acid suspension emulsion.

Embodiment 7 0.1% penoxsuams+30% mcpa sodium wetting powder

Penoxsuam 0.1%

Mcpa sodium 30%

Lauryl sodium sulfate 10%

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

Penoxsuam 80%

Tetra chloro-butyric acid of dimethyl butyl ester 0.1%

MODIFIED LIGNOSULPHONATE 5%

Lauryl sodium sulfate 5%

Urea 5%

Kaolin complements to 100%

Penoxsuam active component, dispersant, wetting agent, disintegrant and the filler ratio in prescription is mixed, be ground into wetting powder through air-flow; Adding the tetra chloro-butyric acid of dimethyl butyl ester again mixes; Add a certain amount of water mixing extruding again and make material.Obtain 80% penoxsuam+0.1% tetra chloro-butyric acid of dimethyl butyl ester water dispersible granules after the drying screening.

Embodiment 9 0.1% penoxsuams+10% methoxone sodium aqueous emulsion

Oil phase:

Penoxsuam 0.1%

Methyl oleate 10%

Ethoxylated castor oil 5%

Water:

Methoxone sodium 60%

The sodium salt 1% of the naphthalene sulfonic acids-formaldehyde condensation products of sulfonation

Water complements to 100%

Penoxsuam is dissolved in the methyl oleate, adds ethoxylated castor oil and obtain oil phase; According to the sodium salt of prescription with the naphthalene sulfonic acids-formaldehyde condensation products of mcpa sodium and sulfonation, water, mix and obtain water; Under agitation oil phase is added water and obtain aqueous emulsion.

Embodiment 10 20% penoxsuams+40% methoxone sodium wetting powder

Penoxsuam 20%

Methoxone sodium 40%

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+80% methoxone sodium coated granule

Penoxsuam 0.1%

Methoxone sodium 80%

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 40% penoxsuams++ 2% methoxone potassium wetting powder

Penoxsuam 40%

Methoxone potassium 2%

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 5% penoxsuams+30% mcpa sodium is extruded granule

Penoxsuam 5%

Methoxone sodium 30%

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 stream then.

Embodiment 14 1% penoxsuams++ 20% methoxone sodium suspending agent

Penoxsuam 1%

Methoxone sodium 20%

Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%

MODIFIED LIGNOSULPHONATE 5%

Xanthans 1%

Bentonite 1%

Glycerine 5%

Water complements to 100%

Above-mentioned each component is mixed in proportion, and through sand milling, be prepared into suspending agent.

Embodiment 15 1% penoxsuams+30% methoxone sulfo-ethyl ester ZC

Atlox 4913 4%

Citric acid 0.05%

Catalyzer 0.1%

Water 13%

Methoxone sulfo-ethyl ester 30%

PAPI 1.35%

Solvesso 200 10%

Atlox4913 16%

Dispersant LFH 0.3%

Defoamer 0.16%

Urea 8.4%

Penoxsuam 1%

Water complements to 100%

The oil phase adding that PAPI, methoxone sulfo-ethyl ester, Solvesso 100 are formed contains in the aqueous solution of Atlox4913, forms emulsion.Heat then and be incubated 50 ^oAdded catalyst reaction 2 hours under the C.Obtain the microcapsules of methoxone sulfo-ethyl ester after the cooling.

Atlox 4913, dispersant LFH, and defoamer, urea, penoxsuam and water mix in proportion, and through sand milling, are prepared into suspending agent.

The methoxone sulfo-ethyl ester microcapsules that obtains is added in the suspending agent of penoxsuam, and stirring obtains 1% penoxsuam+30% methoxone sulfo-ethyl ester ZC.

Embodiment 16 5% penoxsuams+30% tetra chloro-butyric acid of dimethyl suspended emulsion

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%

Xanthans 1%

Bentonite 1%

Glycerine 5%

Water complements to 100%

Tetra chloro-butyric acid of dimethyl is dissolved among the Solvesso 200, adds ethoxylated castor oil, obtain the missible oil of tetra chloro-butyric acid of dimethyl;

With penoxsuam, 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 tetra chloro-butyric acid of dimethyl joins and contains in the penoxsuam suspending agent, obtains suspended emulsion.

Embodiment 17 30% penoxsuams+0.1% methoxone second thioesters missible oil

Penoxsuam 30%

Methoxone second thioesters 0.1%

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 5% penoxsuams+95% methoxone sodium

Penoxsuam 5%

Methoxone sodium 95%

Penoxsuam, methoxone sodium 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 combination 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

X be when use consumption as mg/ha or concentration the activity during as the reactive compound A of mppm;

Y 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;

E be when use consumption as m and n g/ha or concentration the activity during as the reactive compound A of m and n ppm and B,

So

If the activity of actual observation (O) is greater than expection active (E), so said composition super add and, namely have synergistic effect.

Above-described embodiment is several preferable compound mode of novel built Herbicidal combinations among the present invention, in order to embody beneficial effect part of the present invention, below we will test the novel built Herbicidal combinations of allocating in above-described embodiment.

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 and methoxone sodium test and preventive effect analysis have been carried out a large amount of, discovery is in certain ratio range, resulting Herbicidal combinations has the synergistic effect effect, and be not only the simple addition of two kinds of medicaments, be illustrated with following biologicall test example.

Test: advance copy is invented the herbicidal effect in live field, transplant field and seedling throwing field respectively

Test method

Test one: the present invention is at the herbicidal effect in live field

Live field is divided into water direct seeding field and direct-sowing dry field, since the moisture in direct-sowing dry field than the water direct seeding field to lack many, its soil is relatively drier, so it is just few to be suitable for the kind of weed killer herbicide itself, and direct-sowing dry field weed generating capacity is big, kind is also comparatively complicated, and in order to embody the good characteristic of novel built Herbicidal combinations of the present invention, we are the weeding object with the direct-sowing dry field in this test.Early stage behind the direct-sowing dry seedling, the weeds that the main difficulty in field is prevented and kill off are barnyard grass grass, rice barnyard grass, Drilgrass, dayflower, triquetrousc murdannia herb, wild water chestnut, difformed galingale herb, miliary fimbristylis herb, cyperus iria, convexutricle sedge herb, ear leaf water amaranth.

Medicament adopts now with the current mode, and we test with the prescription of embodiment the inside.To not use soil in the rice field of weed killer herbicide as cultivating soil.Evenly be sprinkling upon soil surface after the seed of the barnyard grass grass that last one year, gathered in the direct-sowing dry field, rice barnyard grass, Drilgrass, dayflower, triquetrousc murdannia herb, wild water chestnut, difformed galingale herb, miliary fimbristylis herb, cyperus iria, convexutricle sedge herb, ear leaf water amaranth and brood body soaked, wait it to grow 3 ~ 5 leaves, then its dispenser is handled.

Result and analysis:

3 all back investigation results to barnyard grass grass, rice barnyard grass, Drilgrass, dayflower, triquetrousc murdannia herb, ear leaf water amaranth, convexutricle sedge herb, sesbania, wild water chestnut, difformed galingale herb, miliary fimbristylis herb, the actual reduction of cyperus iria behind the spray medicine:

Test two: the herbicidal effect of the present invention between transplant field

The weeds that transplant field mainly occurs have the weeds of barnyard grass grass, flat stalk Fischer grass, Monochoria vaginalis, short arrowhead, Procumbent Falsepimpernel, triquetrousc murdannia herb, difformed galingale herb, cyperus iria, miliary fimbristylis herb, wild these kinds of water chestnut as the weeding object.

Medicament adopts now with the current mode, and we test with the prescription of embodiment the inside.Evenly be sprinkling upon soil surface after the seed of the barnyard grass grass of gathering between transplant field last one year, flat stalk Fischer grass, sesbania, Monochoria vaginalis, short arrowhead, Procumbent Falsepimpernel, triquetrousc murdannia herb, difformed galingale herb, cyperus iria, miliary fimbristylis herb, wild water chestnut and brood body soaked, wait it to grow 3 ~ 5 leaves.Then its dispenser is handled.

Result and analysis:

Spray medicine 3 week back barnyard grass grass, flat stalk Fischer grass, Monochoria vaginalis, short arrowhead, Procumbent Falsepimpernel, triquetrousc murdannia herb, difformed galingale herb, cyperus iria, miliary fimbristylis herb,, the investigation result of the actual reduction of wild water chestnut:

Test three: the herbicidal effect of the present invention between seedling throwing field

Seedling throwing field is because seedling stage is shorter, and generally at 15 ~ 25 days, available weed killer herbicide is fewer, therebetween the main weeds that occur have barnyard grass grass, Monochoria vaginalis,, Drilgrass, cyperus iria, sunshine floating, Lu grass etc.Will be with these weeds as the weeding object in this test.

Medicament adopts now with the current mode, and we test with the prescription of embodiment the inside.To not use soil in the rice field of weed killer herbicide as cultivating soil.With the barnyard grass grass gathered between seedling throwing field last one year, Monochoria vaginalis,, the seed of Drilgrass, cyperus iria, miliary fimbristylis herb,, Lu grass and brood body evenly be sprinkling upon soil surface after soaking, and waits it to grow 3 ~ 5 leaves.Then to its dispenser.

Result and analysis:

3 weeks are to the investigation result of barnyard grass grass, Monochoria vaginalis, short arrowhead, Drilgrass, cyperus iria, the actual reduction of miliary fimbristylis herb, Lu grass behind the spray medicine:

Above-mentioned test is the test of the weeding between live field, transplant field and seedling throwing field respectively, and as can be seen, novel built Herbicidal combinations provided by the invention is to have obvious synergistic effect with respect to the independent use of weed killer herbicide list agent from above-mentioned table.

Test four:: the herbicidal effect of the present invention between corn field

Medicament adopts now with the current mode, tests according to proportioning of the present invention.To not use soil in the corn field of weed killer herbicide as cultivating soil.Barnyard grass grass, lady's-grass, eleusine indica, green foxtail, wild oat, Radix seu Herba Astilbes rivularis, multitude, amaranth, bog marshcress herb, dayflower, shepherd's purse, kitchen garden, salsola collina, bur beggar-ticks, wild western pawl seedling, artemisiifolia, lettuce that corn field in the period of last one is collected are sold and evenly are sprinkling upon soil surface after dish, field thistle seed and brood body are soaked, and wait it to grow 3 ~ 5 leaves.Then to its dispenser.

Result and analysis:

3 weeks barnyard grass grass, lady's-grass, eleusine indica, green foxtail, wild oat, Radix seu Herba Astilbes rivularis, multitude, amaranth, bog marshcress herb, dayflower, shepherd's purse, kitchen garden, salsola collina, bur beggar-ticks, wild western pawl seedling, artemisiifolia, lettuce were sold the investigation result of the actual reduction of dish, field thistle behind the spray medicine.

。

Claims (14)

1. a composite Herbicidal combinations is characterized in that: comprise

First active component: penoxsuam,

Second active component: methoxone and derivative thereof,

Above-mentioned two kinds of active component mixture ratio by weight percent scopes are 800:1～1:800.

2. composite Herbicidal combinations according to claim 1, it is characterized in that: described two kinds of active component mixture ratio by weight percent scopes are 500:1～1:500.

3. composite Herbicidal combinations according to claim 1, it is characterized in that: described two kinds of active component mixture ratio by weight percent scopes are 300:1～1:300.

4. composite Herbicidal combinations according to claim 1, it is characterized in that: described two kinds of active component mixture ratio by weight percent scopes are 100:1～1:100.

5. composite Herbicidal combinations according to claim 1, it is characterized in that: described two kinds of active component mixture ratio by weight percent scopes are 20:1～1:20.

6. according to the composite Herbicidal combinations of claim 1, it is characterized in that: described methoxone derivative is methoxone isopropyl acid, tetra chloro-butyric acid of dimethyl, tetra chloro-butyric acid of dimethyl butyl ester, the different monooctyl ester of methoxone, methoxone second thioesters, methoxone sulfo-ethyl ester, mcpa sodium, methoxone sylvite, methoxone isopropyl amine salt.

7. composite Herbicidal combinations according to claim 1 is characterized in that: described novel built Herbicidal combinations can be mixed with agricultural and go up any formulation that allows.

8. composite Herbicidal combinations according to claim 1, it is characterized in that: the formulation of described composite Herbicidal combinations is wetting powder, missible oil, suspending agent, oil-suspending agent, microcapsules, microemulsion, aqueous emulsion, suspended emulsion, water dispersible granules, ZC.

9. 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.

10. 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.

11. method according to claim 10 is characterized in that: described undesirable plant is barnyard grass grass (Echinochloa crusgalli L.Beauv), the rice barnyard grass, difformed galingale herb (Cyperus difformis Linn.), ear leaf water amaranth (Ammannia aurenaria H.B.K.) flat stalk Fischer grass (Scirpus planiculmis), convexutricle sedge herb (Cyperus rotundus L.), rhizoma alismatis (Alismataceae), angustifolia arrowhead herb (Sagittariatrifolia), Procumbent Falsepimpernel, sesbania (Sesbania exaltata), ring flower (Commelina diffusa), Monochoria vaginalis (Monochoria vaginalis), Drilgrass (Equisetum ramosissimum Desf), dayflower (Herba Commelinae), triquetrousc murdannia herb (Mllrdanniatriguetra), wild water chestnut (Heleocharis plantagineiformis Tang et Wang), miliary fimbristylis herb (Fimbristylis miliacea (L.) Va), cyperus iria (Cyperus iria L.).

12. 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.

13. method according to claim 7 is characterized in that: described useful crop is cereal.

14. method according to claim 13 is characterized in that: described useful crop is paddy rice and corn.