CN105918328A

CN105918328A - Weeding farm chemical composition

Info

Publication number: CN105918328A
Application number: CN201610293963.4A
Authority: CN
Inventors: 任川宏; 王会镇; 杨维清; 李洪洋; 席锐; 陈明亮; 李洪亮
Original assignee: Xihua University
Current assignee: Xihua University
Priority date: 2016-05-03
Filing date: 2016-05-03
Publication date: 2016-09-07
Anticipated expiration: 2036-05-03
Also published as: CN105918328B

Abstract

The invention discloses a synergistic weeding farm chemical composition. 2-(6-fluoro-2-pyridine acyloxy)-N-(4-fluoro-phenyl)-N-(1-methyl ethyl)thioacetamide(TAM-5) and flufenacet serve as effective ingredients and form the weeding farm chemical composition with auxiliary ingredients acceptable in farm chemicals, wherein the weight ratio of TAM-5 to flufenacet is 20:1-1:30. Synergism is formed after the two effective ingredients are combined, and the weeding spectrum can be expanded; meanwhile, no antagonism is caused, and the safety to crops is improved. The synergic weeding farm chemical composition can effectively prevent and remove annual gramineous weeds and broad-leaved weeds, can also suppress part of perennial weeds and is especially suitable for weeding in soybean fields, capable of effectively improving the weeding effect and safe to the industrial crop soybeans.

Description

A kind of weeding pesticide composition

Technical field

The present invention relates to a kind of weeding class composition pesticide, especially for Soybean Field, sugarcane field, corn field, Rapeseed Field, The farmlands such as tea place and bare place weeding.

Background technology

The farmlands such as Soybean Field, sugarcane field, corn field, Rapeseed Field, tea place and bare place weeding have numerous weeds.With common As a example by soybean weeds, soybean weeds can be divided into three major types in the sense that preventing and kill off, i.e. annual gramineous weed, annual Broad leaved weed and perennial weeds.Soybean Field annual gramineous weed mainly has barnyard grass, Herba Setariae Viridis, setaria glauca, wild broomcorn millet, horse Tang, wild oat etc..Soybean Field annual broadleaf weed mainly has Amaranthus retroflexus, Herba Xanthii, Herba Solani Nigri (black star), Herba Acalyphae, Herba chenopodii (ash Dish), Herba Rorippae Islandicae, Herba Abutili, water Spina jujubae, Folium Salicis Babylonicae thorn knotweed, Herba stellariae mediae, wolf tail grass (ghost fork), Herba Salsolae Collinae, Herba Moslae (Pedicularis grandiflora), Herba Portulacae, Pale persicaria, Herba Commelinae (Cymbidium ensifolium (L.) Sw. dish), Semen Cuscutae etc..Soybean Field perennial weeds mainly has Herba Sonchi Arvensis, Herba Equiseti Arvinsis (Herba Equiseti Hiemalis), little Ji (field thistle), Radix Cirsii Japonici (Herba Cisii eriophoroidei), phragmites communis, alkali grass etc..From in recent years, all present one in most of China area Trend, the broad leaved weed such as Herba Commelinae, wolf tail grass, pale persicaria, Herba Xanthii, Herba Solani Nigri, Herba Rorippae Islandicae, Herba Abutili, Herba Sonchi Arvensis, Herba Cirsii, Radix Cirsii Japonici The most gradually instead of the grassy weeds such as barnyard grass, wild oat, Herba Setariae Viridis and become Soybean Field main weeds.Herba Cirsii, Herba Sonchi Arvensis, duck Sole of the foot grass is more known as Soybean Field " three dishes ", becomes the difficult point that soybean weeds is prevented and kill off.Soybean Field chemical herbicide occupation mode, Typically take to broadcast front or after soil treatment and Seedling, stem and leaf processes two ways before broadcasting rear Seedling.Broadcast front or broadcast soil treatment before rear Seedling Advantage is management of weeds in the budding period with before working the mischief, and herbicidal effect is more stable, dispenser advantage of lower cost, even if anti- Relatively fruit of cutting weeds is bad, also can remedy after Seedling.Shortcoming: one be pH value, affected by soil types, the content of organic matter relatively big, It is not suitable for using soil treatment when soil excessively glues weight, the content of organic matter is too high or pH value does not meets certain medicament；Two is some Herbicide such as metribuzin, 2,4-D butyl ester etc. is easily generated poisoning at sand soil, low-lying land due to the leaching of medicament；Three is by meteorology Condition impact is relatively big, and particularly spring arid, wind is big and abnormal low temperature or high temperature all can affect herbicidal effect.After Seedling, stem and leaf processes Advantage be to be affected less by soil types, the content of organic matter, soil moisture, it is suitable to select according to weeds kind of being unearthed Herbicide with strong points.Shortcoming: one be little in drought, air humidity and weed growth slowly in the case of weeding effect Fruit is the best；Two is that some medicament is easily generated poisoning under the conditions of too high or too low for temperature；Three be after Seedling stem and leaf process must be greatly Most weeds just can be carried out when being unearthed and have the leaf area of certain adhering liquid medicine, and now Semen sojae atricolor early growth is by crop smothering shadow Ring, cause the underproduction.Therefore, Soybean Field chemical weed control is typically based on soil treatment, and after Seedling, stem and leaf is processed as auxiliary.To weeds kind The plot that many, radix is bigger needs to carry out secondary chemical weed control.Therefore Soybean Field chemical weed control, to slap in implementation process flexibly Holding, particular problem is made a concrete analysis of.Due to, soil property difference in all parts of the country is relatively big, and climate difference is notable, adds Soybean Field weeding Difficulty.

Corn field common weed has barnyard grass, Herba Digitariae, Herba Abutili, Amaranthus retroflexus, Herba Eleusines Indicae, Herba Eragrostidis pilosae, green green bristlegrass, setaria glauca Etc..Sugarcane field common weed has the annual grassy weeds such as Rhizoma Cyperi, Herba Digitariae, Herba Eleusines Indicae, shaven head barnyard grass, bidens pilosa, Bermuda grass. In corn field common weed, the most raw weeds also have perennial weeds, and these weeds have multiple go out the grass phase, preventing and treating Difficulty is big.Easily there is poisoning at present most-often used in agricultural production glyphosate, glufosinate-ammonium, Acetochlor, Bi Kecao etc..The biggest During part aforementioned Common Herbicides dispenser, the careless age to weeds requires height, and beyond a range of careless age, herbicidal effect substantially drops Low.Glyphosate, glufosinate-ammonium class herbicide are more is only applicable to bare place weeding.Meanwhile, chemical herbicide to be produced not by weeds Resistance with degree.These factors, all make herbicide need constantly to release that effect is more preferable, the wider array of new varieties of weed control spectrum.

Chinese patent (application number CN2013100125604, January 15 2013 date of application, Granted publication date 2014 On November 19) in report the formula of the artificial Xihua Univ of patent application (clear, the Ma Menglin of inventor Yang Wei etc.) be TAM's 2-pyridine acyloxy-N-disubstituted thioacetyl aminated compounds and synthetic method (formula 1) thereof.Chinese patent (application number CN2013100201913, January 21 2013 date of application, 2014 Granted publication dates JIUYUE 3 days) in report patent Shen Asking someone as Xihua Univ (clear, the Zhang Yuanyuan of inventor Yang Wei etc.) mutual-through type is the 2-pyridine acyloxy-N-disubstituted sulfur generation of TAM The novel synthesis of acetamides is reported, this new method uses ester-interchange method to the synthesis of target product, obtains Very good effect.Chinese patent (application number CN2013100201928, January 21 2013 date of application, Granted publication date On March 26th, 2014) in report the formula of the artificial Xihua Univ of patent application (inventor Yang Wei clear, Zhang Yuanyuan etc.) and be 2-pyridine acyloxy-N-disubstituted thioacetyl the aminated compounds of TAM, as the purposes of herbicide, is mainly used in preventing and kill off farmland Middle broad leaved weed and grassy weed.TAM-5(formula 2 in the compound that formula is TAM) activity of weeding is best, and can be the most anti- Except annual grassy weed and broad leaved weed, but part perennial weeds can only be played limited inhibition, kill Grass spectrum is the most extensive.Meanwhile, TAM-5(formula 2) production cost for the most most of herbicide kinds, Slightly higher, economically consider, be also necessary to carry out interworking use with other effective herbicides.

Flufenacet, English abbreviation flufenact, Full Name in English N-(4-fluorophenyl)-N-(1- methylethyl)-2- [[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide.Fluorine Fenacet chinesization formal name used at school is referred to as 4'-fluoro-N-isopropyl-2-(5-Trifluoromethyl-1,3,4-thiadiazoles-2-base oxygen) acetophenone Amine, molecular formula C₁₄H₁₃F₄N₃O₂S, CAS 142459-58-3, its structural formula is as shown in Equation 3.Flufenacet former medicine outward appearance is white Color, to buff powder, fusing point 76-77 DEG C (alcohol crystal), relative density 1.312 (25 DEG C), under the conditions of 25 DEG C, is not dissolved in Water, can be dissolved in the multiple organic solvents such as acetone, DMF, DMSO, sulfolane.Flufenacet system oxygen acetanil class herbicide, Bayer A.G's exploitation in 1988, test code number BAYFOE 5043, common name flufenact, trade name Axiom, Herald、Terano、Epic、Arist.Flufenacet is Bayer A.G's another oxygen second after successfully exploitation mefenacet Anilid class herbicide, is mainly played a role by suppression cell division.1988 to 1994 in the U.S., Europe, south Substantial amounts of field test has been done in non-, Asia, South America, and test shows that this kind, with 120～200g/ha process, can effectively prevent and kill off one Early stage before the bud of year raw grassy weed and broad leaved weed and after bud, it is adaptable to soya corn Cotton Gossypii Oryza sativa L. and other crops Prevent and kill off main weeds, flufenacet can with prevent and kill off the herbicide metribuzin (metribuzin) of broad leaved weed, metosulam (metosulam), Diflufenican (diflufenican) etc. compounding, expand weed control spectrum.Compared with mefenacet, flufenacet There is higher activity, be suitable for more crop management of weeds.This kind at the beginning of 21st century in the U.S., Europe The state such as continent, South America obtains registration.Patent protection period crossed the most by the former medicine of flufenacet, and current manufacturer is more, such as Yancheng Greenery chemical industry Co., Ltd of city, Jiangsu Kuaidaagricultural Chemical Co., Ltd, wide bio tech ltd, Jiangsu, Jintan Sheng Yu chemical plant, city etc..Flufenacet synthesis technique is relatively easy, and Li Yusheng, Zhou Guidong etc. of Jiangsu Prov. Inst. of Agricultural Chemicals exist " synthesis of flufenacet " describes its synthesis technique, with hydrazine hydrate, trifluoroacetic acid for Material synthesis 2-methylsulfonyl-5-trifluoro Methyl isophthalic acid, 3,4-thiadiazoles；With p-fluoronitrobenzene, acetone through catalytic hydrogenation, acylated, alcoholysis synthesis N-(4-fluorophenyl)-N- Isopropyl-2-hydroxymethyl acetamide；Then 2-methylsulfonyl-5-Trifluoromethyl-1,3,4-thiadiazoles is different with N-(4-fluorophenyl)-N- Propyl group-2-hydroxymethyl acetamide carries out condensation and prepares flufenacet (" synthesis of flufenacet ", author Li Yusheng, Zhou Guidong, Shen Preferably congruence, " modern ", 2002, the 2nd phase, P8-10).Later, the Jiang Yutian of Jiangsu Anpon Electrochemical Co., Ltd., Chen Tong The synthesis technique improving the former medicine of herbicide flufenacet such as bright, closes with Methyl hydrazinecarbodithioate, trifluoroacetic acid for raw material Become 2-methylsulfonyl-5-Trifluoromethyl-1,3,4-thiadiazoles；With p-fluoronitrobenzene, acetone through catalytic hydrogenation, acylated, alcoholysis conjunction Become N-(4-fluorophenyl)-N-isopropyl-2-hydroxymethyl acetamide, and flufenacet be synthesized with the two intermediate condensation, Technological reaction mild condition after improvement, the three wastes are few, and product purity and yield height all improve to some extent (" flufenacet Synthesis ", author Jiang Yutian, Chen Tongming etc., " pesticide ", and 2007, o. 11th, P734-736).But, due to flufenacet list Kind preparation exist during using undesirable to big weeds effect in grass age, consumption is of a relatively high and is easily generated resistance etc. asks Topic, therefore flufenacet is often with to prevent and kill off the herbicide metribuzin of broad leaved weed, metosulam, Diflufenican etc. compounding, in order to enter One step expands weed control spectrum.

Summary of the invention

For above-mentioned situation, the present invention can effectively be prevented and kill off annual grassy weed by report one and broad-leaved is miscellaneous Grass, can suppress again efficient, the safe weeding pesticide of part perennial weeds, may be used for Soybean Field, sugarcane field, corn field, The farmland such as Rapeseed Field, tea place and bare place weeding.Although aforementioned Chinese patent (application number CN2013100201928, date of application On January 21st, 2013, March 26 2014 Granted publication date) in report the 2-pyridine acyloxy-N-that formula is TAM double Replace thioacetyl aminated compounds and be mainly used in broad leaved weed and the excellent purposes of grassy weed in farmland as herbicide. But this kind of thioacetyl aminated compounds is prepared as preparation and is used alone or to there is weed control spectrum wide not, to some weeds grass Age requires high defect.Reducing these defects the most to a certain extent to overcome, in initial experimentation, we enter The TAM-5 that gone can prevent and kill off wealthy with nearly 30 kinds of metosulam, atrazine, Diflufenican, terbufos benzthiazuron, flufenacet etc. respectively What the herbicide kind of leaf weeds and grassy weed was combined (including the combination of three kinds of herbicide components) screens reality in a large number Test.Finally, we have found TAM-5 and fluorine thiophene grass by a large amount of indoor and field experiment and further Economic Evaluation The Synergistic herbicide compositions of amine.It has surprisingly been found that this Synergistic herbicide compositions is for Soybean Field selective herbicidal, not only remove Grass is effective, and industrial crops Semen sojae atricolor is not had any poisoning.

Herbicidal combinations of the present invention is (6-fluoro-2-pyridine acyloxy)-N-(4-fluorophenyl)-N-(1-with Chinese as 2- Methylethyl) [English name is (N-(4-fluorophenyl)-N-isopropylthiocarbamoyl) to thioacetamide Hereinafter referred to as TAM-5 in the methyl-6-fluoropyridine-2-carboxylate(present invention), structural formula such as formula 2 institute Show；And with Chinese for 4'-fluoro-N-isopropyl-2-(5-Trifluoromethyl-1,3,4-thiadiazoles-2-base oxygen) acetanilide (English name be N-(4-fluorophenyl)-N-(1-m ethylethyl)-2-[[5-(trifluoromethyl)-1, 3,4-thiadiazol-2-yl] oxy] acetamide) (present invention uses its Chinese referred to as flufenacet), structural formula is such as Shown in formula 3；The present invention is with the compound of TAM-5 and flufenacet as effective ingredient, with acceptable auxiliary element in pesticide Collectively constitute.

In Herbicidal combinations of the present invention, the permission part by weight of TAM-5 and flufenacet is 40:1 to 1:50, preferably than Example is 10:1 to 1:20, is preferably in a proportion of 5:1 to 1:10.

Acceptable auxiliary element in described pesticide, including the most using in pesticide, will not produce unfavorable shadow All kinds of common solvent rung and/or inert filler and/or surfactant and/or preservative and/or antifreezing agent and/or agglomeration resistance Agent and/or defoamer and/or cosolvent and/or the corresponding adding ingredient such as stabilizer and/or thickening agent, it is possible to according to being produced Dosage form do and corresponding select or adjust.

Agrochemical formulations generally comprises 0.1-99 weight %, the Herbicidal combinations of the present invention of particularly 2-90 weight %.? In wettable powder (WP), Herbicidal combination substrate concentration is, such as 10-90 weight %, the remainder in 100 weight % is by routine system Agent auxiliary element forms.In suspending agent (SC), Herbicidal combination substrate concentration is, such as 1-90 weight %, preferably 5-75 weight %, 100 Remainder in weight % is made up of conventional formulation auxiliary element.In suspension emulsion (SE), Herbicidal combination substrate concentration is, such as 1- 90 weight %, preferably 5-75 weight %, the remainder in 100 weight % is made up of conventional formulation auxiliary element.At water dispersant (WDG) in, Herbicidal combination substrate concentration is, such as 1-95 weight %, and preferably 10-70 weight %, the remainder in 100 weight % is by often Regulation agent auxiliary element forms.The preparation of other powder types includes 1-40 weight % reactive compound, and preferably 5-20 weight % is lived Property compound, the remainder in 100 weight % is made up of conventional formulation auxiliary element.

Herbicidal combinations of the present invention is according to different use needs or applying environment condition, raw by current conventional pesticide Product mode, is divided into raw material to be sufficiently mixed TAM-5 in described Herbicidal combinations and flufenacet effective ingredient and respective secondary furtherance, Preparation becomes the operational corresponding dosage form of multi-form.Possible dosage form includes: wettable powder, water dispersant, suspension Agent, aqueous emulsion, suspension emulsion, microcapsule etc..The most several typical common dosage forms and preparation can:

Suspension emulsion (SE) i.e. water insoluble pesticide hybrid dispersions in water, a kind of effective ingredient therein is in suspended state, Other effective ingredient is in emulsion state.Can be by the present composition and corresponding emulsion, moistening dispersion when preparing during preparation The auxiliary elements such as agent, thickening agent, stabilizer, antifreezing agent, pH adjusting agent, defoamer, conventionally, through soybean dietary fiber It is mixed to prepare.Wherein emulsifying agent is alkylphenol polyoxyethylene class (agriculture breast 100#), alkylbenzenesulfonate (agriculture breast 500#), benzene second Base phenol polyethenoxy ethers (agriculture breast 600#), alkyl phenol or aralkyl phenol polyethenoxy ether formaldehyde condensation species (Nongru-700 #) etc. In one or several.Wherein Ricinate is lignosulfonates, lignin, phosphate ester polyethers, carboxymethyl cellulose Element, sodium carboxymethyl cellulose, crown ether, alkylnaphthalene sulfonate, alkylbenzenesulfonate, aliphatic alcohol sulfate, alkyl ammonium halide, season One or several in salt, alkyl polyoxyethylene base ether sulfate, azone, thiophene ketone；Thickening agent and stabilizer be polyvinyl alcohol, One or several in condensed phosphate, Xanthan gum, Magnesiumaluminumsilicate etc.；Antifreezing agent is sodium chloride, carbamide, ammonium sulfate, second One or several in glycol, glycerol etc.；PH adjusting agent is potassium dihydrogen phosphate, dipotassium hydrogen phosphate, citric acid, sodium carbonate, carbon One or several in acid potassium etc..Conventional organosilicon is as defoamer and foam inhibitor.

Water dispersant (WDG) can in water fater disintegration, and can be uniformly dispersed in water formation higher suspension dispersion A kind of granular preparation.The present composition and auxiliary element one can be reinstated during preparation air-flow smash or superfine grinding, system Becoming wettable powder, this is dry method；By the present composition, auxiliary agent, adjuvant etc., with water as medium, grind in sand mill, Making suspending agent, the most again drying-granulating, this is wet method.

Wettable powder (WP), i.e. can homodisperse solid powder preparation in water.During preparation, can be according to routine side Formula, is firstly added the compositions of TAM-5 of the present invention and flufenacet, is subsequently adding kieselguhr, potter's clay, precipitated calcium carbonate, Linesless charcoal Black conventional diluent such as grade or inert substance, add other conventional auxiliary element, as alkylnaphthalene sulfonate, alkylbenzenesulfonate, Aliphatic alcohol sulfate, alkyl bromination ammonium, alkyl ammomium chloride, quaternary salt, alkyl polyoxyethylene base ether sulfate, lignin sulfonic acid One or several in salt, lignin, carboxymethyl cellulose, sodium carboxymethyl cellulose, azone, thiophene ketone, and conventional stable The complementary auxiliary components such as agent, foam inhibitor, anticaking agent.

Suspending agent (SC) i.e. agricultural chemicals suspension agent (SC), for water insoluble solids pesticide or do not mix liquid pesticidal in water or oil Dispersion.During preparation, with water or oil as disperse medium, by TAM-5 of the present invention and flufenacet compositions and auxiliary element (such as thickening agent, stabilizer, Ricinate, antifreezing agent, pH adjusting agent, defoamer etc.) are made through soybean dietary fiber (grinding) ?.Wherein Ricinate is phosphate ester polyethers, alkylnaphthalene sulfonate, alkylbenzenesulfonate, aliphatic alcohol sulfate, alkyl bromide Change ammonium, alkyl ammomium chloride, crown ether, quaternary salt, alkyl polyoxyethylene base ether sulfate, lignosulfonates, lignin, carboxymethyl One or several in cellulose, sodium carboxymethyl cellulose, azone, thiophene ketone；Thickening agent and stabilizer are polyvinyl alcohol, condensation One or several in phosphate, Xanthan gum, Magnesiumaluminumsilicate etc.；Antifreezing agent be sodium chloride, carbamide, ammonium sulfate, ethylene glycol, One or several in glycerol etc.；PH adjusting agent is potassium dihydrogen phosphate, dipotassium hydrogen phosphate, citric acid, sodium carbonate, potassium carbonate etc. In one or several.Conventional organosilicon is as defoamer and foam inhibitor.

It should be noted that concrete dosage form mentioned above is the representative dosage form that the present composition can be prepared, enumerate not It is limited to these above-mentioned dosage forms.

The foregoing of the present invention is described in further detail by concrete mode by the following examples again.But should not This is interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to Examples below by this.Without departing from the present invention above-mentioned technological thought feelings Under condition, the various replacements made according to ordinary skill knowledge and customary means or change, all should be included in the present invention's In the range of.In embodiment, each material proportion of composing is weight %.

Detailed description of the invention

One, example of formulations

Herbicidal combinations TAM-5 flufenacet suspension emulsion (SE) of embodiment 1:10%

Composition: TAM-5 6%(wt%, below the present invention the most herewith)

Flufenacet 4% (source: Jiangsu Kuaidaagricultural Chemical Co., Ltd, lower same)

Ethanolamine 1.5%

Agriculture breast 500# 2%

Agriculture breast 600# 4%

Dimethylbenzene 8%

Water complementary is to 100%

Preparation: TAM-5, flufenacet, solvent xylene, emulsifying agent, co-emulsifier are mixed into homogeneous oil phase；By water, freeze proof Agent is mixed into homogeneous aqueous phase, under the stirring of high-speed shearing machine, is poured into by oil phase in aqueous phase, is sufficiently mixed.

Herbicidal combinations TAM-5 flufenacet suspension emulsion (SE) of embodiment 2:20%

Composition: TAM-5 15%

Flufenacet 5%

Ethanolamine 2%

Agriculture breast 500# 3%

Agriculture breast 600# 6%

Dimethylbenzene 10%

Water complementary is to 100%

Herbicidal combinations TAM-5 flufenacet suspension emulsion (SE) of embodiment 3:25%

Composition: TAM-5 20%

Flufenacet 5%

Ethanolamine 3%

Agriculture breast 500# 4%

Agriculture breast 600# 6%

Dimethylbenzene 12%

Water complementary is to 100%

Herbicidal combinations TAM-5 flufenacet suspending agent (SC) of embodiment 4:30%

Composition: TAM-5 20%

Flufenacet 10%

Lignosulfonates calcium 4%

Dodecylbenzene sodium sulfonate 3%

Magnesiumaluminumsilicate 3%

Sodium carboxymethyl cellulose 4%

Ethylene glycol 7%

Water complementary is to 100%

Preparation: be sequentially added in reactor by each material, uses high-speed shearing machine to carry out just and disperses, then grind in sand mill To effective ingredient particle diameter in 2～5 μm.

Herbicidal combinations TAM-5 flufenacet suspending agent (SC) of embodiment 5:20%

Composition: TAM-5 10%

Flufenacet 10%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Magnesiumaluminumsilicate 2%

Dodecylbenzene sodium sulfonate 2%

Ethylene glycol 7%

Water complementary is to 100%

Herbicidal combinations TAM-5 flufenacet suspending agent (SC) of embodiment 6:40%

Composition: TAM-5 25%

Flufenacet 15%

Lignosulfonates calcium 4%

Sodium carboxymethyl cellulose 3%

Magnesiumaluminumsilicate 4%

Dodecylbenzene sodium sulfonate 4%

Ethylene glycol 8%

Water complementary is to 100%

Herbicidal combinations TAM-5 flufenacet suspending agent (SC) of embodiment 7:20%

Composition: TAM-5 15%

Flufenacet 5%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Magnesiumaluminumsilicate 2%

Dodecylbenzene sodium sulfonate 2%

Ethylene glycol 3%

Water complementary is to 100%

Herbicidal combinations TAM-5 flufenacet suspending agent (SC) of embodiment 8:30%

Composition: TAM-5 15%

Flufenacet 15%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Magnesiumaluminumsilicate 2%

Dodecylbenzene sodium sulfonate 2%

Ethylene glycol 3%

Water complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 9:10%

Composition: TAM-5 6%

Flufenacet 4%

Lignosulfonates calcium 4%

Sodium carboxymethyl cellulose 4%

Dodecylbenzene sodium sulfonate 3%

Tetrabutyl ammonium bromide 3%

Polyvinyl alcohol 5%

Kaolin complementary is to 100%

Preparation: be sequentially added in reactor by each material, stirring makes it be sufficiently mixed, is crushed to 5～20 μm.

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 10:15%

Composition: TAM-5 10%

Flufenacet 5%

Polyvinyl alcohol 5%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 4%

Dodecylbenzene sodium sulfonate 3%

Tetrabutyl ammonium bromide 2%

Kaolin complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 11:20%

Composition: TAM-5 12%

Flufenacet 8%

Lignosulfonates calcium 3%

Polyvinyl alcohol 5%

Sodium carboxymethyl cellulose 3%

Dodecylbenzene sodium sulfonate 2%

Tetrabutyl ammonium bromide 3%

Kaolin complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 12:20%

Composition: TAM-5 15%

Flufenacet 5%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Dodecylbenzene sodium sulfonate 2%

Tetrabutyl ammonium bromide 2%

Kaolin complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 13:25%

Composition: TAM-5 20%

Flufenacet 5%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Dodecylbenzene sodium sulfonate 2%

Tetrabutyl ammonium bromide 2%

Kaolin complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 14:25%

Composition: TAM-5 15%

Flufenacet 10%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Dodecylbenzene sodium sulfonate 2%

Tetrabutyl ammonium bromide 2%

Kaolin complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 15:30%

Composition: TAM-5 20%

Flufenacet 10%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Dodecylbenzene sodium sulfonate 2%

Tetrabutyl ammonium bromide 2%

Kaolin complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 16:30%

Composition: TAM-5 25%

Flufenacet 5%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Dodecylbenzene sodium sulfonate 2%

Tetrabutyl ammonium bromide 2%

Kaolin complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 17:30%

Composition: TAM-5 15%

Flufenacet 15%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Dodecylbenzene sodium sulfonate 2%

Tetrabutyl ammonium bromide 2%

Kaolin complementary is to 100%

Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of embodiment 18:40%

Composition: TAM-5 20%

Flufenacet 20%

Polyvinyl alcohol 6%

Lignosulfonates calcium 3%

Sodium carboxymethyl cellulose 3%

Dodecylbenzene sodium sulfonate 2%

Tetrabutyl ammonium bromide 2%

Kaolin complementary is to 100%

The Herbicidal combinations TAM-5 flufenacet water dispersible granules of embodiment 19:30%

Composition: TAM-5 20%

Flufenacet 10%

Lignin 5%

Acrylic acid minor matters polymer 4%

Dodecyl sodium sulfate 3%

Polyethylene Glycol 4%

Bentonite complementary is to 100%

Preparation: be sequentially added in reactor by each material, mix homogeneously, then grinds in sand mill, adds suitable quantity of water, makes Grain, is drying to obtain and dispersibles granule.

The Herbicidal combinations TAM-5 flufenacet water dispersible granules of embodiment 20:40%

Composition: TAM-5 25%

Flufenacet 15%

Lignin 5%

Acrylic acid minor matters polymer 4%

Dodecyl sodium sulfate 3%

Polyethylene Glycol 4%

Bentonite complementary is to 100%

The Herbicidal combinations TAM-5 flufenacet water dispersible granules of embodiment 21:30%

Composition: TAM-5 15%

Flufenacet 15%

Lignin 5%

Acrylic acid minor matters polymer 4%

Dodecyl sodium sulfate 3%

Polyethylene Glycol 4%

Bentonite complementary is to 100%

The Herbicidal combinations TAM-5 flufenacet water dispersible granules of embodiment 22:40%

Composition: TAM-5 20%

Flufenacet 20%

Lignin 5%

Acrylic acid minor matters polymer 4%

Dodecyl sodium sulfate 3%

Polyethylene Glycol 4%

Bentonite complementary is to 100%

The Herbicidal combinations TAM-5 flufenacet water dispersible granules of embodiment 23:30%

Composition: TAM-5 10%

Flufenacet 20%

Lignin 5%

Acrylic acid minor matters polymer 4%

Dodecyl sodium sulfate 3%

Polyethylene Glycol 4%

Bentonite complementary is to 100%

The Herbicidal combinations TAM-5 flufenacet water dispersible granules of embodiment 24:40%

Composition: TAM-5 15%

Flufenacet 25%

Lignin 5%

Acrylic acid minor matters polymer 4%

Dodecyl sodium sulfate 3%

Polyethylene Glycol 4%

Bentonite complementary is to 100%

Reactive compound (TAM-5) wettable powder (WP) of embodiment 25:40%

Composition: TAM-5 40%

Lignosulfonates calcium 8%

Sodium carboxymethyl cellulose 5%

Dodecylbenzene sodium sulfonate 6%

Tetrabutyl ammonium bromide 4%

Kaolin complementary is to 100%

The flufenacet suspending agent (SC) of embodiment 26:28%

Composition: flufenacet 28%

Lignosulfonates calcium 5%

Sodium carboxymethyl cellulose 4%

Magnesiumaluminumsilicate 3%

Dodecylbenzene sodium sulfonate 3%

Ethylene glycol 5%

Water complementary is to 100%

By following experiment it can be shown that in the above-mentioned Herbicidal combinations of the present invention two effective ingredient TAM-5 and fluorine thiophene grass The compounding of amine can have obvious potentiation.

In the research of herbicide, it is administered alone when the activity of weeding after active compound exceedes each reactive compound Active time, then show to there is potentiation.

The budget activity of the given combination of two kinds of herbicides can be calculated as follows (list of references: author Colby, S.R. etc., Periodical title " Weed ", 1 phase in 1967, P20-22)

When X=% is in the case of amount of application is p kg/ha, herbicide A (reactive compound A) loss ratio,

And Y=% is in the case of amount of application is q kg/ha, herbicide B (reactive compound B) loss ratio,

And E=% is in the case of amount of application is p and q kg/ha, the speculative damage rate of herbicide A and B, then:

E=X+Y-X*Y/100

If actual damage value exceedes value of calculation, the activity of compositions is to surpass to add sum, i.e. shows potentiation.

One, potted plant experiment

Herbicidal combinations TAM-5 flufenacet

Reactive compound (TAM-5) wettable powder (WP) (preparing according to the embodiment of the present invention 25) of 40%, the fluorine thiophene grass of 28% Amine suspending agent (SC) (preparing according to the embodiment of the present invention 26) and compounding after to grassy weed and broad leaved weed (Herba Digitariae grass 2-4 Ye Qi, Herba Abutili 1-3 leaf phase) indoor virulence experimental result, as shown in table 1.

The activity of weeding effect of table 1 potted plant experiment

Table 1 indoor pot test result indicate that, after reactive compound (TAM-5) is compounding with two kinds of compositions of flufenacet, has bright Aobvious potentiation.

Two, field efficacy experiment

As a example by Soybean Field: in Soybean Field, big bean seedlings the tender shoots 1～3 leaf phase, the weeds 2～4 leaf phase, with the reactive compound of 40% (TAM-5) wettable powder (WP) (preparing according to the embodiment of the present invention 25), 28% flufenacet suspending agent (SC) (according to this Prepared by inventive embodiments 26) and Herbicidal combinations TAM-5 flufenacet wettable powder (WP) of 40% (real according to the present invention Execute example 18 to prepare) effect experiment to sugarcane field weeds.After medicine, 30 days investigation fresh weight preventive effects and 5% significant level are as shown in table 2.

The field test results of soybean weeds prevented and kill off by table 2

The experimental result of table 2 shows, in the present composition, TAM-5 and flufenacet is compounding, it is possible to form potentiation, and And weed control spectrum can be expanded, simultaneously without antagonism, crop safety is improved, significantly improves herbicidal effect, reduce cost.By Table 1, test result indicate that of table 2, two kinds of single dose medicines the composite weedicide of combination after halving, different miscellaneous at 3 kinds respectively Preventive effect in grass experiment is above the single dose medicine of full dosage, further illustrates, and can have aobvious after TAM-5 is compounding with flufenacet Write potentiation, and without antagonism, to Semen sojae atricolor safety.

Claims

1. weeding pesticide composition, with 2-(6-fluoro-2-pyridine acyloxy)-N-(4-fluorophenyl)-N-(1-Methylethyl) sulfur generation Acetamide (TAM-5) and flufenacet are that in effective ingredient, with pesticide, acceptable auxiliary element collectively constitutes, wherein TAM- 5 and flufenacet part by weight be 40:1 to 1:50.

2. weeding pesticide composition as claimed in claim 1, is characterized in that described effective ingredient 2-(6-fluoro-2-pyridine acyl-oxygen Base)-N-(4-fluorophenyl)-N-(1-Methylethyl) thioacetamide (TAM-5) and flufenacet part by weight be 20:1 to 1: 30。

3. weeding pesticide composition as claimed in claim 1, is characterized in that described effective ingredient 2-(6-fluoro-2-pyridine acyl-oxygen Base)-N-(4-fluorophenyl)-N-(1-Methylethyl) thioacetamide (TAM-5) and flufenacet part by weight be 2:1 to 1: 10。

4., such as claim 1 herbicide composition pesticide, by the current conventional pesticide mode of production, preparation becomes multi-form Arbitrary in the preparation formulations such as operational wettable powder, water dispersant, suspending agent, aqueous emulsion, suspension emulsion, microcapsule Plant dosage form.

5. as in claim 1 herbicide composition pesticide, 2-(6-fluoro-2-pyridine acyloxy)-N-(4-fluorophenyl)-N-(1- Methylethyl) thioacetamide (TAM-5) can by the compound 2-(6-fluoro-2-pyridine acyloxy) similar with TAM-5 structure- N-(4-fluorophenyl)-N-n-pro-pyl thioacetamide, 2-(6-bromo-2-pyridyl acyloxy)-N-(4-fluorophenyl)-N-(1-methyl Ethyl) thioacetamide, 2-(6-Chloro-2-Pyridyle acyloxy)-N-(4-fluorophenyl)-N-(1-Methylethyl) thioacetamide etc. Replace.

6. such as claim 1 herbicide composition pesticide, a combination thereof thing use function be activating plants agent, agrochemical function also In the range of this patent rights protection.