CN106172392A - A kind of cornfield weeding composition and preparation thereof - Google Patents
A kind of cornfield weeding composition and preparation thereof Download PDFInfo
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- CN106172392A CN106172392A CN201610529058.4A CN201610529058A CN106172392A CN 106172392 A CN106172392 A CN 106172392A CN 201610529058 A CN201610529058 A CN 201610529058A CN 106172392 A CN106172392 A CN 106172392A
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- isoxadifen
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- isoxaflutole
- pethoxamid
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/32—Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group, wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of cornfield weeding composition, it is to be formed by pethoxamid, isoxaflutole and isoxadifen (or salt of isoxadifen) are compounding, and three's weight ratio is (1～80): (1～40): (1～20).Present invention also offers a kind of cornfield weeding composition preparation, including above-mentioned Herbicidal combinations and conven-tional adjuvants, it can be wettable powder, suspending agent, dispersible oil-suspending agent, cream, microemulsion, aqueous emulsion, granule or water dispersible granules.The cornfield weeding composition of the present invention and preparation thereof both can be as closing herbicide application before Seedling, it is also possible to using as herbicide after seedling, a dispenser, kill envelope economic benefits and social benefits, the lasting period is long.Both having expanded herbicidal spectrum, and extended applicable period, medication is convenient, uses safety, also reduces dosage, has saved cost.
Description
Technical field
The present invention relates to a kind of cornfield weeding composition, especially a kind of containing pethoxamid, isoxaflutole and double benzene
The Herbicidal combinations of oxazole acid and preparation thereof, belong to technical field of pesticide preparations.
Background technology
Semen Maydis is to be distributed one of widest cereal crops in the world, and China is world's second largest Maize Production state, Semen Maydis
All having plantation in China various places, various places are because of weather, the difference of soil, and the weeds kind of corn field is a lot, wherein, and common weeds
Have barnyard grass, Herba Digitariae, Herba setariae geniculatae, Herba chenopodii, Fructus Kochiae, Herba stellariae mediae, Herba Solani Nigri, Herba veronicae, Flos Daturae, knotweed, Herba Bidentis Bipinnatae, Amaranthus retroflexus, Herba Portulacae,
Herba Acalyphae, water Spina jujubae, Herba Commelinae, Herba Sonchi Arvensis, Herba Abutili, Herba Xanthii etc..
At present, the weed control of corn field is generally based on herbicide before seedling stage, and herbicide after seedling is auxiliary, wherein weeding before Seedling
The effective ingredient of agent is mainly Acetochlor, alachlor, propisochlor, isopropyl methoxalamine, butachlor, atrazine, metribuzin, cyanogen grass
Tianjin etc., but the sealing effect of herbicide before seedling stage is the most unsatisfactory, usually also needs to secondary and imposes herbicide after seedling, postemergence weed control
The effective ingredient of agent is mainly nicosulfuron, mesotrione, rimsulfuron, sulphur oxadiazon, MCPA,MCP,methoxone, atrazine, decoyl bromobenzene
Nitrile etc..Due to secondary dispenser, this adds increased human and material resources cost, but also it is bad or produce medicine to easily cause herbicidal effect
Evil problem, causes the underproduction；Additionally, due to the use for many years of above-mentioned herbicide, the herbicidal spectrum of herbicide is narrow, and the resistance of weeds increases
Adding, some herbicides are not closed effect to some weeds, and also to be suitable for period short for part herbicide, and weeds do not have after emerging substantially
There is herbicidal effect, only effective to the weeds not being unearthed.Along with maize culture mode, being continually changing of cropping system, Semen Maydis field
Crop smothering problem be also on the rise, developing corn field herbicide safe efficient, lasting period length is the most urgently to be resolved hurrily asking
Topic.
Pethoxamid, English common name: Pethoxamid, chemical classification: chloroacetyl amine, chemical name: 2-chloro-N (2-second
Epoxide ethyl)-N-(2-methyl isophthalic acid-phenyl-1-acrylic) acetamide.Physicochemical property: molecular weight: 295.8；Molecular formula:
C16H22ClNO2.Outward appearance: the tasteless solid of white crystalline；Fusing point 37-38 DEG C；Dissolubility: water 0.401 (g/L, 20 DEG C), acetone,
Dimethylbenzene > 250；Stability: stable in the buffer of pH4,5,7,9 (50 DEG C).
Its chemical structural formula is:
Action character: cell division inhibitor, can suppress the synthesis of long-chain fatty acid.Systemic herbicide, by root with new
Raw tender leaf absorbs.Use age is flexible, and before broadcasting rear bud, soil is closed or early stage postemergence weed control after bud, is used for preventing and kill off Semen Maydis and Semen sojae atricolor
The grassy weeds such as the barnyard grass in field, Herba Digitariae and Herba setariae geniculatae, and the broad leaved weed such as Amaranthus retroflexus, Herba chenopodii.
Isoxaflutole, English common name: Isoxaflutole, molecular formula: C15H12F3NO4S, chemical name: 5-ring third
Base-1,2-azoles-4-base (α, α, α-trifluoromethyl-2-mesyl p-methylphenyl) ketone.Former medicine outward appearance is that white is to lark
Solid, fusing point 140 DEG C, water-soluble degree 6.2 mg/litre, vapour pressure (25 DEG C) 10-5Pa, relative density 1.590 (20 DEG C).Its chemistry
Structural formula is:
Isoxaflutole is stable to light, and at 54 DEG C, heat storage is not decomposed for 14 days, and in the aqueous solution of PH1, the half-life is 1
My god.For Semen Maydis, Caulis Sacchari sinensis etc., the use age is flexible, and drug effect performance is affected little by weather condition, and after broadcasting, before Seedling, soil closing removes
After grass or Seedling, the weeding of stem and leaf process in early days can use, and herbicidal spectrum is wide, can prevent and treat the big multiple grass family in corn field, broad-leaved
Weeds and sedge weed.In soil, the effective ingredient of residual disappeared, to second stubble crop safety within crop growing season.Sensitive
After weeds absorb this medicine, destroy chlorophyllous formation by suppression ethyl-para-hydroxyphenyl ketone dioxygenase, cause the weeds that are injured
Chlorosis, withered, dead.When using or after using, though the effective ingredient being stranded in because soil moisture content is bad in topsoil is not
The effect of management of weeds can be given play in time, but remained to keep the long period not to be decomposed, rainfall to be run into or irrigation, remain to
Play the effect of management of weeds, even the susceptible weeds growing to 4～5 leaves also can be killed and suppress.Can prevent and kill off include barnyard grass,
Herba Digitariae, Herba Setariae Viridis, Herba Setariae viridis, Herba Eleusines Indicae, Semen Euphorbiae, millet, knucklegrass, Herba chenopodii, Herba Abutili, Herba Xanthii, Fructus Kochiae, Herba stellariae mediae, Herba Solani Nigri, grandmother
Receive, Herba Moslae, Flos Daturae, Herba Salsolae Collinae, Folium Salicis Babylonicae thorn knotweed, lady's thumb, Binzhou knotweed, pale persicaria, Herba Bidentis Bipinnatae, Amaranthus retroflexus, Herba Portulacae, Herba Acalyphae
Multiple annual broad-leaved, the grassy weeds such as dish, water Spina jujubae.
Isoxadifen, English common name: Isoxadifen-ethyl, chemical name: 4,5-dihydro-5,5-diphenyl-
1,2-azoles-3-carboxylic acid, ethyl ester, its chemical structural formula is:
Isoxadifen belongs to isoxazole class herbicide-safener, be mainly used in compounding corn field herbicide after seedling reduce or
Eliminating poisoning, improve the drug resistance of crop, solve difficult anti-weeds prevents and kill off problem.
After different Herbicidal combinations agent activity component mixing, each active component is due to composition, structure, the difference of physicochemical property
Different so that the synergy between each active component is typically expressed as potentiation, summation action or antagonism.So-called potentiation
Effect is exactly to cooperate effect between different material, and its effect produced is more than the sum total of each composition effect；And it is added work
With being exactly its effect produced sum total equal to each composition effect；Antagonism refers to that two kinds of materials act on living organism
Time, the effect of the another kind of material of a kind of material interference, or the effect of interfering with an opponent each other, make what general effect declined to show
As.
Pethoxamid, isoxaflutole and isoxadifen three are compounded by the present invention first, and the structure of three is different,
Activity is different, and the mechanism of action also differs.The present invention finds through the checking of a large amount of indoor bioassay and field experiment: three
After carrying out compounding, synergistic function is obvious.The Herbicidal combinations being made up of pethoxamid, isoxaflutole and isoxadifen expands
Big herbicidal spectrum, it is possible to simultaneously prevent and kill off the most of weeds in corn field, it is also possible to the weeds not being unearthed are had the long period
Closing herbicidal effect, do not limited by weather, weed growth phase condition, Miao Qian, Miao Houjun can use, and safety increases greatly
Add, therefore there is good market prospect.
Summary of the invention
For the present situation of current corn field herbicide, the invention provides a kind of safe efficient, Semen Maydis of lasting period length
Field weeding composition.This Herbicidal combinations is formed by pethoxamid, isoxaflutole and isoxadifen are compounding, and it both can conduct
Herbicide application is closed, it is also possible to using as herbicide after seedling, a dispenser, kill envelope economic benefits and social benefits, the lasting period is long before Seedling.Both expanded
Herbicidal spectrum, extends applicable period, and medication is convenient, uses safety, also reduces dosage, has saved cost.
The technical scheme is that a kind of cornfield weeding composition, it is characterized in that, its effective ingredient by pethoxamid,
Isoxaflutole and isoxadifen (or salt of isoxadifen) compound and form, and three's weight ratio is (1～80): (1～40):
(1～20).
Preferably, the weight ratio of described pethoxamid, isoxaflutole and isoxadifen (or salt of isoxadifen) is
(20～60): (2～20): (1～10).
The salt of described isoxadifen is in isoxadifen potassium salt, isoxadifen sodium salt, isoxadifen ammonium salt
At least one.
Present invention also offers a kind of cornfield weeding composition preparation, it is characterized in that, by above-mentioned Herbicidal combinations with often
Rule auxiliary agent is made, and wherein the ratio of Herbicidal combinations is 1-90%, preferably 20-80%.
The Herbicidal combinations preparation of the present invention can according to need the various dosage forms that are prepared as, it is preferred that institute of the present invention
The Herbicidal combinations preparation stated is wettable powder, suspending agent, dispersible oil-suspending agent, cream, microemulsion, aqueous emulsion, granule
Agent or water dispersible granules, more preferably dispersible oil-suspending agent, water dispersible granules.
Herbicidal combinations preparation of the present invention is wettable powder, is made up of the raw material of following weight parts: pethoxamid
1-80 part, isoxaflutole 1-40 part, isoxadifen (or salt of isoxadifen) 1-20 part, dispersant 5-15 part, moistening
Agent 5-12 part, filler 20-65 part.
The preparation method of this wettable powder is: by above-mentioned formula by pethoxamid, isoxaflutole, isoxadifen (or
The salt of isoxadifen) and dispersant, wetting agent and filler mixing, uniform stirring mix homogeneously in premix stirred tank, warp
Micro jet 800 mesh comminution by gas stream, i.e. can be made into the wettable powder of Herbicidal combinations of the present invention.
Herbicidal combinations preparation of the present invention can be also suspending agent, is made up of the raw material of following weight parts: pethoxamid
1-80 part, isoxaflutole 1-40 part, isoxadifen (or salt of isoxadifen) 1-20 part, dispersant 4-18 part, antifreeze
Agent 1-3 part, thickening agent 1-5 part, defoamer 0.1-1 part, penetrating agent 1-10 part, pH value regulator 0.1-5 part, water complements to 100
Part.
The preparation method of this suspending agent is: first mixed by other auxiliary agents, through high speed shear mix homogeneously, is subsequently adding effectively
Component pethoxamid, isoxaflutole and isoxadifen, ball milling 2～3 hours in ball crusher, make particle diameter all 5 μm with
Under, prepare the aqueous suspension formulations of Herbicidal combinations of the present invention.
Herbicidal combinations preparation of the present invention can be also to dispersible oil-suspending agent, by the raw material system of following weight parts
Become: pethoxamid 1-80 part, isoxaflutole 1-40 part, isoxadifen (or salt of isoxadifen) 1-20 part, emulsifying agent 5-
15 parts, dispersant 5-15 part, stabilizer 5-15, antifreezing agent 5-10 part, defoamer 1-5 part, thickening agent 1-5 part, vegetable oil is supplied
To 100 parts.
This preparation method dispersibling oil-suspending agent is: each component is stirred in premix still, then grinds at glass
Abrading-ball 2～3 hours in ball machine, make dispersible granule diameter all in 2-4 μm, and prepare Herbicidal combinations of the present invention dispersibles oil
Aqueous suspension formulations.
Herbicidal combinations preparation of the present invention can be also cream, is made up of the raw material of following weight parts: pethoxamid 1-
80 parts, isoxaflutole 1-40 part, isoxadifen (or salt of isoxadifen) 1-20 part, emulsifying agent 1-15 part, cosolvent
1-10 part, other auxiliary agents 0-10 part, solvent complements to 100 parts.
The preparation method of this cream is: is first put in reactor by major part solvent, the most under agitation, puts into alkene successively
Grass amine, isoxaflutole, isoxadifen (or salt of isoxadifen), emulsifying agent, cosolvent, other auxiliary agents and remain molten
Agent.The reactor putting into each component continues stirring 1～2 hour, each component is fully dissolved, and prepares weeding group of the present invention
The cream preparation of compound.
Herbicidal combinations preparation of the present invention can be also aqueous emulsion, is made up of the raw material of following weight parts: pethoxamid
1-80 part, isoxaflutole 1-40 part, isoxadifen (or salt of isoxadifen) 1-20 part, emulsifying agent 8-20 part, solvent
7-25 part, stabilizer 3-10 part, antifreezing agent 1-5 part, defoamer 0.1-3 part, thickening agent 1-5 part, water complements to 100 parts.
The preparation method of this aqueous emulsion is: first by pethoxamid, isoxaflutole, isoxadifen (or isoxadifen
Salt) and solvent, emulsifying agent, stabilizer be added together, make to be dissolved into uniform oil phase；Part water, antifreezing agent, defoamer are mixed
It is combined uniformly aqueous phase；While high-speed stirred, oil phase is added aqueous phase in a kettle., adds thickening agent, slowly add
Water, until reaching phase inversion point, is opened cutter and is carried out high speed shear, and add remaining water, shear 20-40 minute, form water bag
The aqueous emulsion of oil type.I.e. prepare the aqueous emulsion of Herbicidal combinations of the present invention.
Herbicidal combinations preparation of the present invention can be also water dispersible granules, is made up of the raw material of following weight parts: alkene
Grass amine 1-80 part, isoxaflutole 1-40 part, isoxadifen (or salt of isoxadifen) 1-20 part, dispersant 5-20 part,
Wetting agent 7-15 part, disintegrating agent 2-5 part, filler 10-70 part.
The preparation method of this water dispersible granules is: by above-mentioned formula by pethoxamid, isoxaflutole, isoxadifen (or
The salt of isoxadifen) and dispersant, wetting agent, disintegrating agent and filler mix homogeneously, pulverize with micro jet, warp
Mediate, be subsequently adding in fluidized-bed granulation dryer carry out pelletize, be dried, screening after, sampled analysis, i.e. prepare institute of the present invention
The water dispersible granules of the Herbicidal combinations stated.
Above-described filler is white carbon, Kaolin, potter's clay, attapulgite, precipitated calcium carbonate, methyl oleate, methyl ester
Change in soybean oil, Semen Maydis oil or white oil any one, the effective ingredient in herbicide can be adsorbed well, reach slow release effect
Really.
Above-described wetting agent is sodium alkyl sulfate, sodium butylnaphthalenesulfonate, sodium alkyl benzene sulfonate or alkyl phenol polyoxy
Any one in vinyl Ether sodium sulfate, can improve the herbicide moistening dispersibility in water.
Above-described dispersant is any one in sodium lignin sulfonate, sodium polyphosphate or sodium methylene bis-naphthalene sulfonate
Kind, herbicide can be promoted to disperse in water, make herbicide have good stability.
Above-described thickening agent be Xanthan gum (XG), aluminium-magnesium silicate, carboxymethyl cellulose, carboxyethyl cellulose, third
Olefin(e) acid sodium, polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), sodium polyacrylate, polyvinyl acetate, disperse silicic acid,
Any one in methylcellulose or arabic gum, can regulate the viscosity of suspending agent, thus reduce suspending agent and storing
The sedimentation produced in journey, improves the suspension stability of suspending agent.
Above-described antifreezing agent is that ethylene glycol, propylene glycol, glycerol, glycerol-ether diglycol, methyl propylene are double sweet
Any one in alcohol, glycerol or carbamide, can increase the freezing tolerance of suspending agent, improves suspending agent in low temperature storage, fortune
Stability during defeated, prevents preparation crystallization and reunites.
Above-described disintegrating agent is any one in ammonium sulfate, bentonite, carbamide, aluminum chloride or glucose, permissible
Accelerate water dispersible granules disintegration rate in water, make water dispersible granules more rapid and better play a role.
Above-described stabilizer is alkyl (aryl) phosphate ester, phosphorous acid esters, polyhydric alcohol, alkyl (aryl) sulphonic acid ester
And replace in amine salt, epoxychloropropane, sodium benzoate, organic acid, organic base or antioxidant any one, be possible to prevent or
Delay water dispersible granules to decompose during storing or physical property deterioration, keep and to strengthen the performance of water dispersible granules steady
Qualitative, it is ensured that water dispersible granules property indices before the deadline meets the requirements.
Above-described solvent is mixed xylenes, toluene, purified petroleum benzin, biodiesel, diesel oil, other aromatic solvents, ketone
(Ketohexamethylene, isophorone, ketopyrrolidine), alcohols (methanol, ethanol, propanol, ethylene glycol, diethylene glycol, n-butyl alcohol, isopropyl
Alcohol), alcohol ethers (ethylene glycol monomethyl ether, ether, butyl ether), esters (ethyl acetate, phthalic acid ester), oils (Oleum Brassicae campestris, cotton
Seed oil), Oleum Terebinthinae, solvent naphtha, dimethylformamide, acetonitrile, dimethyl sulfoxide, the mixing of one or more in water.
Above-described emulsifying agent is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol-polyethenoxy
Ether sulfosuccinates, styrylphenol polyoxyethylene ether, NPE, castor oil polyoxyethylene ether, fat
At least one in acid polyoxyethylene groups ester, polyoxyethylene aliphatic alcohol ether.
Above-described defoamer is selected from: silicone oil, silicone compound, C10-20 saturated fat acid compounds, C8-10
At least one in aliphatic alcohols compound.
The above penetrating agent is one or both the mixture in laurocapram, JFC.
The above pH value regulator is in sodium hydroxide, potassium hydroxide, ammonia, hydrochloric acid, acetic acid, phosphoric acid or citric acid
At least one.
The cosolvent that cream preparation is used is the one in methanol, isopropanol, n-butyl alcohol, propylene glycol, ethanol, ethylene glycol
Or more than one.Other auxiliary agents can be stabilizer etc..
Using method: from corn seeding first day, all can use to the Semen Maydis 5-7 leaf phase, use once.
The Herbicidal combinations preparation of the present invention can effectively prevent and kill off annual gramineous weed and annual broadleaf weed, can pacify
Complete in corn field, not only to crop safety, and safety same to environment.From corn seeding first day, to Semen Maydis 5-7
In the leaf phase (weeds 3-4 leaf phase), peasant's a drug, can prevent and kill off be unearthed Herba Digitariae, Herba Setariae Viridis, Herba Eleusines Indicae, Herba chenopodii, the duck sole of the foot
Most of weeds in the corn fields such as grass, Herba Sonchi Arvensis, Herba Portulacae, Herba Abutili, Herba Xanthii, it is also possible to the weeds not being unearthed are had longer
The closing herbicidal effect of time, is not the most limited by weather, weed growth phase condition that (weather is arid, hot and humid, low temperature is low
Wet, weeds are not long neat), and to corn safety.It is experimentally confirmed that three compounds has the strongest potentiation, herbicidal spectrum expands, Seedling
Before, Miao Houjun can use, safety is greatly increased.Can be widely used for preventing and kill off barnyard grass, Herba Digitariae, Herba setariae geniculatae, Herba Setariae Viridis, towser tail
Grass, Herba Eleusines Indicae, Semen Euphorbiae, millet, knucklegrass, Herba chenopodii, Herba Abutili, Herba Xanthii, Fructus Kochiae, Herba stellariae mediae, Herba Solani Nigri, Herba veronicae, Herba Moslae, Flos Daturae, Pilus Sus domestica
Multiple 1 year of dish, Folium Salicis Babylonicae thorn knotweed, lady's thumb, Binzhou knotweed, pale persicaria, Herba Bidentis Bipinnatae, Amaranthus retroflexus, Herba Portulacae, Herba Acalyphae, water Spina jujubae etc.
Raw other classification herbicides such as broad-leaved, grassy weed produce the weeds of resistance.
Beneficial effects of the present invention:
(1) Herbicidal combinations of the present invention and preparation thereof are with pethoxamid, the compounding as effective ingredient of isoxaflutole.They
Between combine antagonism annual broadleaf weed and grassy weed there is obvious synergistic function, expand herbicidal spectrum,
Improve the lasting effect of each composition single dose, enhance the stability under the external environment such as different temperatures, humidity, extend applicable
In period, medication is convenient, uses safety, decreases dosage, has saved cost.It is possible not only to prevent and treat pethoxamid or isoxaflutole
Multiple grassy weed, broad leaved weed and the sedge weed can prevented and treated when being used alone, and to part grassy weed
Preventing and treating potentiation with broad leaved weed is the most notable.As herbicide after seedling when weeds occur to use in early days, can accomplish once
Dispenser, kills envelope economic benefits and social benefits, and the lasting period is long.
(2) Herbicidal combinations of the present invention and preparation thereof, by adding isoxadifen, reduces or avoids Semen Maydis dispenser
Rear undesirable drug injury problem, substantially can be until Semen Maydis 5-7 leaf phase dispenser, Miao Houyi after the corn seeding non-seeding stage
Secondary medication, had both killed big most weeds being unearthed, and had had again the soil sealing process of regular period, have twice dispenser
Lasting effect, decreases pesticide Reusability number of times, reduces Pesticide use amount, reduce agricultural cost, slow down weeds drug resistance
The generation of property, reduces the pollution to environment simultaneously.
(3) Herbicidal combinations of the present invention and preparation thereof are to Crop securify, the most degradable after the lasting period, medicine
Residual quantity on field crops is low, is more favorable for environmental protection, improves the compositions safety to second stubble crop, to ecological and environment
Protect significant.
Detailed description of the invention
Below by instantiation, the present invention will be further elaborated, it should explanation, the description below be only for
The explanation present invention, is not defined its content.
Embodiment 1
By pethoxamid 20 parts, isoxaflutole 2 parts, isoxadifen potassium salt 1 part, sodium lignin sulfonate 7 parts, fatty alcohol sulfur
10 parts of sodium of acid and Kaolin 60 parts mixing, uniform stirring mix homogeneously in premix stirred tank, through micro jet 800 mesh
Comminution by gas stream, i.e. prepares the wettable powder of Herbicidal combinations of the present invention.
Embodiment 2
By pethoxamid 22.5 parts, isoxaflutole 2.5 parts, isoxadifen potassium salt 1.5 parts, sodium lignin sulfonate 7.5 parts,
Sodium alkyl sulfate 12 parts and Kaolin 54 parts mixing, uniform stirring mix homogeneously in premix stirred tank, through ultra micro air-flow powder
Broken machine 800 mesh comminution by gas stream, i.e. prepares the wettable powder of Herbicidal combinations of the present invention.
Embodiment 3
By pethoxamid 20 parts, isoxaflutole 2 parts, isoxadifen potassium salt 1 part, sodium lignin sulfonate 7.5 parts, ethylene glycol
2.5 parts, Xanthan gum (XG) 2 parts, silicone oil 1 part, laurocapram 1 part, sodium hydroxide 1 part, 62 parts of water.First other auxiliary agents are mixed
Close, through high speed shear mix homogeneously, be subsequently adding active component pethoxamid, isoxaflutole and isoxadifen potassium salt, at mill
Ball milling 3 hours in ball machine, make dispersible granule diameter all below 5 μm, prepare the suspending agent system of Herbicidal combinations of the present invention
Agent.
Embodiment 4
By pethoxamid 22.5 parts, isoxaflutole 2.5 parts, isoxadifen potassium salt 1.5 parts, sodium lignin sulfonate 7.5 parts,
Ethylene glycol 2.5 parts, Xanthan gum (XG) 2 parts, silicone oil 1 part, laurocapram 1.5 parts, sodium hydroxide 1 part, 58 parts of water.First by it
He mixes by auxiliary agent, through high speed shear mix homogeneously, is subsequently adding active component pethoxamid, isoxaflutole and isoxadifen potassium
Salt, ball milling 2 hours in ball crusher, make dispersible granule diameter all below 5 μm, prepare the outstanding of Herbicidal combinations of the present invention
Floating agent formulation.
Embodiment 5
By pethoxamid 20 parts, isoxaflutole 2 parts, isoxadifen potassium salt 1 part, aliphatic acid polyethenoxy ether 15 parts, wood
Quality sodium sulfonate 8 parts, alkyl phosphate 5 parts, ethylene glycol 2 parts, silicone oil 1.5 parts, Xanthan gum (XG) 1.5 parts, esterification Semen sojae atricolor
Oil 44 parts.Each component is stirred in premix still, abrading-ball 2.5 hours in glass ball crusher, make dispersible granule diameter all exist
2-4 μm, prepare Herbicidal combinations of the present invention dispersibles oil-suspending agent preparation.
Embodiment 6
By pethoxamid 22.5 parts, isoxaflutole 2.5 parts, isoxadifen potassium salt 1.5 parts, aliphatic acid polyethenoxy ether 15
Part, sodium lignin sulfonate 8 parts, alkyl phosphate 5 parts, ethylene glycol 2 parts, silicone oil 1.5 parts, Xanthan gum (XG) 1.5 parts, esterification
Soybean oil 40.5 parts.Each component is stirred in premix still, abrading-ball 2 hours in glass ball crusher, make dispersible granule diameter
All in 2-4 μm, prepare Herbicidal combinations of the present invention dispersibles oil-suspending agent preparation.
Embodiment 7
By pethoxamid 26 parts, isoxaflutole 4 parts, isoxadifen potassium salt 2 parts, aliphatic acid polyethenoxy ether 15 parts, wood
Quality sodium sulfonate 8 parts, alkyl phosphate 5 parts, ethylene glycol 2 parts, silicone oil 1.5 parts, Xanthan gum (XG) 1.5 parts, esterification Semen sojae atricolor
Oil 35 parts.Each component is stirred in premix still, abrading-ball 3 hours in glass ball crusher, make dispersible granule diameter all at 2-4
μm, prepare Herbicidal combinations of the present invention dispersibles oil-suspending agent preparation.
Embodiment 8
By pethoxamid 30 parts, isoxaflutole 5 parts, isoxadifen potassium salt 2.5 parts, aliphatic acid polyethenoxy ether 15 parts,
Sodium lignin sulfonate 8 parts, alkyl phosphate 5 parts, ethylene glycol 2 parts, silicone oil 1.5 parts, Xanthan gum (XG) 1.5 parts, esterification are big
29.5 parts of Oleum Glycines.Each component is stirred in premix still, abrading-ball 2 hours in glass ball crusher, make dispersible granule diameter equal
In 2-4 μm, prepare Herbicidal combinations of the present invention dispersibles oil-suspending agent preparation.
Embodiment 9
By pethoxamid 35 parts, isoxaflutole 8 parts, isoxadifen potassium salt 4 parts, aliphatic acid polyethenoxy ether 15 parts, wood
Quality sodium sulfonate 8 parts, alkyl phosphate 5 parts, ethylene glycol 2 parts, silicone oil 1.5 parts, Xanthan gum (XG) 1.5 parts, esterification Semen sojae atricolor
Oil 20 parts.Each component is stirred in premix still, abrading-ball 2 hours in glass ball crusher, make dispersible granule diameter all at 2-4
μm, prepare Herbicidal combinations of the present invention dispersibles oil-suspending agent preparation.
Embodiment 10
By pethoxamid 40 parts, isoxaflutole 10 parts, isoxadifen potassium salt 5 parts, calcium dodecyl benzene sulfonate 8 parts, fat
Fat acid polyoxyethylene ether 3 parts, methanol 6 parts, dimethylbenzene 28 parts.First major part solvent is put in reactor, the most under agitation,
Put into each pesticide composition, emulsifying agent (calcium dodecyl benzene sulfonate, aliphatic acid polyethenoxy ether), cosolvent (methanol) successively and remain
Remaining solvent.The reactor putting into each component continues stirring 2 hours, each component is fully dissolved, and prepares weeding of the present invention
The cream preparation of compositions.
Embodiment 11
By pethoxamid 40 parts, isoxaflutole 10 parts, isoxadifen potassium salt 5 parts, calcium dodecyl benzene sulfonate 8 parts, fat
Fat acid polyoxyethylene ether 10 parts, n-butyl alcohol 7 parts, alkyl phosphate 3 parts, ethylene glycol 2 parts, silicone oil 1 part, Xanthan gum (XG) 2 parts,
12 parts of water.By active component pethoxamid, isoxaflutole, isoxadifen potassium salt and calcium dodecyl benzene sulfonate, fatty acid polyglycol
Oxygen vinyl Ether, n-butyl alcohol and alkyl phosphate are added together, and make to be dissolved into uniform oil phase；Part water, ethylene glycol, silicone oil are mixed
It is combined uniformly aqueous phase；While high-speed stirred, oil phase is added aqueous phase in a kettle., adds Xanthan gum (XG),
Slowly adding water until reaching phase inversion point, opening cutter and carrying out high speed shear, and adding remaining water, shearing half an hour, being formed
The aqueous emulsion of oil-in-water type, i.e. prepares the aqueous emulsion of Herbicidal combinations of the present invention.
Embodiment 12
By pethoxamid 48 parts, isoxaflutole 12 parts, isoxadifen potassium salt 6 parts, sodium lignin sulfonate 8 parts, fatty alcohol
7 parts of sodium sulfate, 2 parts of ammonium sulfate, Kaolin 17 parts.By effective above component at premix still mix homogeneously, use ultra micro comminution by gas stream
Machine pulverize, through mediate, be subsequently adding in fluidized-bed granulation dryer carry out pelletize, be dried, screening after, i.e. prepare of the present invention
The water dispersible granules of Herbicidal combinations.
Embodiment 13
By pethoxamid 50 parts, isoxaflutole 10 parts, isoxadifen potassium salt 5 parts, sodium lignin sulfonate 8 parts, fatty alcohol
7 parts of sodium sulfate, 2 parts of ammonium sulfate, Kaolin 18 parts.By above component at premix still mix homogeneously, use micro jet powder
Broken, through mediate, be subsequently adding in fluidized-bed granulation dryer carry out pelletize, be dried, screening after, i.e. prepare of the present invention removing
The water dispersible granules of grass compositions.
Embodiment 14
By pethoxamid 60 parts, isoxaflutole 15 parts, isoxadifen potassium salt 7.5 parts, sodium lignin sulfonate 6 parts, fat
7 parts of alcohol sodium sulfate, 2 parts of ammonium sulfate, Kaolin 2.5 parts.By above component at premix still mix homogeneously, use micro jet
Pulverize, through mediate, be subsequently adding in fluidized-bed granulation dryer carry out pelletize, be dried, screening after, i.e. prepare of the present invention
The water dispersible granules of Herbicidal combinations.
Embodiment 15
By pethoxamid 54 parts, isoxaflutole 16 parts, isoxadifen potassium salt 8 parts, sodium lignin sulfonate 8 parts, fatty alcohol
7 parts of sodium sulfate, 2 parts of ammonium sulfate, Kaolin 5 parts.By above component at premix still mix homogeneously, use micro jet powder
Broken, through mediate, be subsequently adding in fluidized-bed granulation dryer carry out pelletize, be dried, screening after, i.e. prepare of the present invention removing
The water dispersible granules of grass compositions.
Embodiment 16: field control effectiveness test
The corn variety of the test of pesticide effectiveness is Shandong single 981, and period, is tested base the weeds 2-4 leaf phase in the Semen Maydis 5-7 leaf phase in dispenser
Be selected in corn breeding base, Longshan, Semen Maydis institute Jinan, Shandong academy of agricultural sciences.After dispenser 15 days, observe the weeding of the embodiment of the present invention
Semen Maydis is occurred by using of composite preparation either with or without poisoning；After dispenser 85 days, observe the soil sealing process of management of weeds.Knot
Fruit is shown in Table 1.
Table 1 field control effectiveness test result
After dispenser 15 days, observe using of 15 invention test examples and Semen Maydis is occurred either with or without poisoning, have no dead Seedling, Huang
Leaf, albefaction leaf phenomenon, corn growth is normal.After dispenser 85 days, observe the soil sealing process of management of weeds, individual plants miscellaneous
Grass has just started to sprout (1-2 leaf phase), mainly dried tuber and Herba Cyperi Difformis, and the season of growth of Semen Maydis closes on end, will not be to Semen Maydis
Normal growth cause big impact, the effective ingredient pesticide residues that this is also demonstrated that in soil are degraded the most substantially, and this is novel
Corn field herbicide composition is to lower stubble long-term cropping safety.Meanwhile, it is observed that arid at weather, hot and humid, low temperature and low humidity
Stable etc. preventive effect under environmental condition, environmental suitability is strong.
In the present invention in specific embodiment 8, after medicine 15 days to the average preventive effect of weeds 95.47%, to annual broad-leaved
The integrated control effect of weeds and grassy weed is respectively 94.58% and 96.19%.It is administered alone the two of equally effective component content
Plant preparation: 75% pethoxamid water dispersible granules 40 grams/acre and 75% isoxaflutole water dispersible granules 6.67 grams/acre, test is beautiful
Rice kind, dispenser period, proving ground ibid, with same method test, statistics herbicidal effect.After medicine 15 days to annual broad-leaved
The integrated control effect of weeds is respectively 58.26%, 86.45%, average preventive effect 72.35%；The integrated control effect of grassy weed is divided
It is not 83.58%, 70.51%, average preventive effect 77.04%.After pethoxamid is compounding with isoxaflutole, potentiation is obvious, to jade
Rice field annual broadleaf weed and the preventive effect of grassy weed, anti-, the lasting effect held concurrently are substantially better than single dose.
As shown in Table 1, the cornfield weeding composition of pethoxamid of the present invention, isoxaflutole and isoxadifen significantly carries
High each single dose component prevention effect to corn field weed is better than conventional herbicide sealing effect；And after can be as Seedling
Herbicide, when weeds occur to use in early days, can accomplish a dispenser, kill envelope economic benefits and social benefits, the lasting period is long.Both weeding had been expanded
Spectrum, extends applicable period, and medication is convenient, uses safety, decreases dosage, has saved cost.The isoxadifen added
Or the salt of isoxadifen, it is ensured that this Herbicidal combinations is to corn safety.
Claims (10)
1. a cornfield weeding composition, is characterized in that, its effective ingredient is by pethoxamid, isoxaflutole and isoxadifen
Or the salt of isoxadifen compounds and forms, three's weight ratio is (1～80): (1～40): (1～20).
2. cornfield weeding composition as claimed in claim 1 a kind of, is characterized in that, described pethoxamid, isoxaflutole and
The weight ratio of the salt of isoxadifen or isoxadifen is (20～60): (2～20): (1～10).
3. a cornfield weeding composition preparation, is characterized in that, by the cornfield weeding composition described in claim 1 or 2
Making with conven-tional adjuvants, wherein the weight ratio of cornfield weeding composition is 1-90%.
4. a kind of cornfield weeding composition preparation as claimed in claim 3, is characterized in that, it is wettable powder, suspension
Agent, dispersible oil-suspending agent, cream, microemulsion, aqueous emulsion, granule or water dispersible granules.
5. cornfield weeding composition preparation as claimed in claim 3 a kind of, is characterized in that, it is wettable powder, by under
The raw material stating weight portion is made: pethoxamid 1-80 part, isoxaflutole 1-40 part, isoxadifen or the salt 1-of isoxadifen
20 parts, dispersant 5-15 part, wetting agent 5-12 part, filler 20-65 part.
6. a kind of cornfield weeding composition preparation as claimed in claim 3, is characterized in that, it is suspending agent, by following heavy
The raw material of amount part is made: pethoxamid 1-80 part, isoxaflutole 1-40 part, isoxadifen or the salt 1-20 of isoxadifen
Part, dispersant 4-18 part, antifreezing agent 1-3 part, thickening agent 1-5 part, defoamer 0.1-1 part, penetrating agent 1-10 part, pH value regulator
0.1-5 part, water complements to 100 parts.
7. a kind of cornfield weeding composition preparation as claimed in claim 3, is characterized in that, it is for dispersibling oil-suspending agent,
It is made up of the raw material of following weight parts: pethoxamid 1-80 part, isoxaflutole 1-40 part, isoxadifen or isoxadifen
Salt 1-20 part, emulsifying agent 5-15 part, dispersant 5-15 part, stabilizer 5-15, antifreezing agent 5-10 part, defoamer 1-5 part, thickening agent
1-5 part, vegetable oil complements to 100 parts.
8. a kind of cornfield weeding composition preparation as claimed in claim 3, is characterized in that, it is cream, by following weight
Part raw material make: salt 1-20 part of pethoxamid 1-80 part, isoxaflutole 1-40 part, isoxadifen or isoxadifen,
Emulsifying agent 1-15 part, cosolvent 1-10 part, other auxiliary agents 0-10 part, solvent complements to 100 parts.
9. a kind of cornfield weeding composition preparation as claimed in claim 3, is characterized in that, it is aqueous emulsion, by following heavy
The raw material of amount part is made: pethoxamid 1-80 part, isoxaflutole 1-40 part, isoxadifen or the salt 1-20 of isoxadifen
Part, emulsifying agent 8-20 part, solvent 7-25 part, stabilizer 3-10 part, antifreezing agent 1-5 part, defoamer 0.1-3 part, thickening agent 1-5
Part, water complements to 100 parts.
10. cornfield weeding composition preparation as claimed in claim 3 a kind of, is characterized in that, it is water dispersible granules, by under
The raw material stating weight portion is made: pethoxamid 1-80 part, isoxaflutole 1-40 part, isoxadifen or the salt 1-of isoxadifen
20 parts, dispersant 5-20 part, wetting agent 7-15 part, disintegrating agent 2-5 part, filler 10-70 part.
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| CN201610529058.4A CN106172392A (en) | 2016-07-06 | 2016-07-06 | A kind of cornfield weeding composition and preparation thereof |
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| CN201610529058.4A CN106172392A (en) | 2016-07-06 | 2016-07-06 | A kind of cornfield weeding composition and preparation thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104273137A (en) * | 2014-10-29 | 2015-01-14 | 山东华亚环保科技有限公司 | Beet herbicide |
| CN104365616A (en) * | 2014-10-29 | 2015-02-25 | 山东省农业科学院玉米研究所 | Herbicide composition for corn field |
-
2016
- 2016-07-06 CN CN201610529058.4A patent/CN106172392A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104273137A (en) * | 2014-10-29 | 2015-01-14 | 山东华亚环保科技有限公司 | Beet herbicide |
| CN104365616A (en) * | 2014-10-29 | 2015-02-25 | 山东省农业科学院玉米研究所 | Herbicide composition for corn field |
Non-Patent Citations (1)
| Title |
|---|
| 王恒亮等: "《新编除草剂应用技术手册》", 31 December 2003 * |
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