CN104522031B - The corn field herbicide composition that a kind of ketone sulphur containing thiophene is grand - Google Patents
The corn field herbicide composition that a kind of ketone sulphur containing thiophene is grand Download PDFInfo
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Abstract
The invention discloses the corn field herbicide composition that a kind of ketone sulphur containing thiophene is grand, grand and the atrazine including active ingredient topramezone, thiophene ketone sulphur, wherein, it is 0.5%～30% that topramezone accounts for the percentage by weight of composition, the grand percentage by weight accounting for composition of thiophene ketone sulphur is 0.5%～30%, and it is 5%～80% that atrazine accounts for the percentage by weight of composition.The present composition can be configured to agriculturally allow suspending agent, water dispersible granules, the wettable powder of use or dispersible oil-suspending agent.The component screening of the present composition is reasonable, shows significant synergistic effect, improves the prevention effect to corn field weed, expand weed control spectrum, reducing drug cost, the security to corn is good, is particularly suited for preventing and kill off corn field annual broadleaf weed and grassy weed.
Description
Technical field
The invention belongs to technical field of compounded pesticide, relate to a kind of corn field herbicide composition, particularly to one containing benzene
Azoles humulone, thiophene ketone sulphur is grand and the corn field herbicide composition of atrazine, it is adaptable to prevent and kill off corn field annual broadleaf weed
And grassy weed.
Background technology
China is large agricultural country, and maize sown area is wide, and corn field weed occurs universal, and weeds are of a great variety.Corn field
Weeds mainly have broad leaved weeds such as Amaranthus retroflexus, lamb's-quarters, field bindweed, black nightshade, three-coloured amaranth, piemarker, iron amaranth, purslane, grey
Ear, dayflower, ox chickweed etc.；Grassy weed such as barnyard grass, lady's-grass, green bristlegrass, eleusine indica, Bermuda grass, moleplant seed
Deng；The sedge weed such as rhizome of nutgrass flatsedge etc..Weeds and corn contention moisture, nutrient, illumination and space, affect Maize at Seedling Stage
Normal growth, even can cause Severe Reduction.People make great efforts to use chemical herbicide weeding always, but due to major part
The weed control spectrum of herbicide own is limited, and Long-Time Service easily causes the generation of Weed Resistance, it is therefore desirable to improve existing removing
Grass agent so that it is there is more preferable herbicidal effect and broader weed control spectrum.
Topramezone, is again benzene pyrazoles humulone, and English name is topramezone, and chemical name is [3-(4,5-dihydros
-3-isoxazolyl)-4-sulfonyloxy methyl-2-methylbenzene] 5-hydroxyl-1-methyl isophthalic acid H-pyrazoles-4-base) ketone, belong to pyrazoline
Type herbicides.Topramezone broad weed-killing spectrum, prevents and kill off effect to corn field overwhelming majority grassy weed and broad leaved weed
Really, the weeds in field such as green bristlegrass, eleusine indica, lamb's-quarters, knotweed, piemarker, purslane, Siberian cocklebur, black nightshade can effectively be prevented and kill off.
Topramezone can be absorbed by the blade of weeds, root and stem, and Bidirectional Conduction up and down in plant, indirect shadow
Ring the synthesis of carotenoid, interference chloroplaset synthesis under light illumination and function, ultimately result in the serious albefaction of weeds lobus cardiacus,
Necrosis, weeds are dead.At 20 DEG C, typically spray medicine 2～just can take effect for 4 days.Field test shows, benzene azoles
The corn (conventional field corn, corn, pop corn, glutinous corn) of most types is all shown non-by humulone
The best security, is safest herbicide in the most domestic and international all after-seedling herbicide for maize kinds, is also
The herbicide after seedling that herbicide is fastest in the market.
Thiophene ketone sulphur is grand, and English name is thiencarbazone-methyl, and chemical name is 4-({ [(3-methoxyl group-4-methyl
-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl) carbonyl] amino } sulfonyl)-5-methylthiophene-3-formic acid first
Ester.Thiophene ketone sulphur is grand for sulfonyl-amino-carbnyl triazolinone class herbicide, is also a kind of inhibitor of acetolactate synthetase.2008
August in year obtains registration in Romania, and this is that this product is approved registration, first with Adengo trade name at sieve in the whole world
City at once.Thiophene Tong Huanglongshi Beyer Co., Ltd since two thousand seven continues corn field herbicide tembotrion and little grain cereal
After herbicide pyrasulfotole, the 3rd the new herbicide marching toward market.Thiophene ketone sulphur is grand is interior absorption medicament, energy
Absorbed by the root of plant and leaf, have and tag and remain herbicidal effect, can effectively prevent and kill off corn field grassy weed and wealthy
Leaf weeds, show well balance between blade face application and residual action.
Atrazine, English name is atrazine, and chemical name is 2-chloro-4-ethylamino--6-isopropylamino-1,3,5-triazines.
Before atrazine is selective inner sucting conduction type seedling, herbicide after seedling, based on root absorption, cauline leaf absorbs seldom, rapidly
Being transmitted to plant separate living tissue and leaf portion, interference photosynthesis makes weeds lethal.In the resistance crop bodies such as corn, green bristlegrass is gone
Innocuous substance is resolved into by corn ketolase in Tianjin, thus to seeding corn and other crops safety.The lasting period of atrazine is longer, weed control spectrum
Extensively, it is used for preventing and kill off corn field annual grassy weeds, especially preferable to the preventive effect of corn field broad leaved weed.Atrazine easily quilt
Rainwater drip washing is to soil deeper, also effective to some deep root grass, but easily produces poisoning.When weeds generation density is higher,
Or plant bigger time, it is difficult to thoroughly kill weeds.
Applying through long-term field test and marketing and find, topramezone is used alone the preventive effect to lady's-grass and barnyard grass
Undesirable；The grand cost that is used alone of thiophene ketone sulphur is high, is unfavorable for spread；When atrazine is used alone, dosage is big,
Poor to the prevention effect of grassy weed, and second stubble crop such as wheat and other broad leaf crops are had a certain impact.Again
Person, topramezone and thiophene ketone sulphur are grand compounding, and the prevention effect of grass family lady's-grass and barnyard grass does not reaches the effect of synergy.
Patent CN201310460550.7 discloses a kind of containing topramezone with the herbicide of atrazine, is topramezone
With the binary built composition of atrazine, atrazine heterodyne anti-to grassy weed and the big defect of consumption can be made up, but
Synergistic effect to corn field weed needs to improve further.
Inventor is known by test, and thiophene ketone sulphur is grand unsatisfactory to grassy weed preventive effect with atrazine；By benzene azoles
Humulone, thiophene ketone sulphur are grand and atrazine three compounds, and have significant synergies corn field weed, can significantly improve
To corn field annual broadleaf weed and the prevention effect of grassy weed, expand control of weeds spectrum, reduce dosage, fall
Low cost accounting.
Summary of the invention
For improving, enriching existing herbicide, on the basis of inventor's pre-stage test, the invention provides a kind of containing thiophene
The corn field herbicide composition that ketone sulphur is grand.The activity of weeding of described herbicidal composition includes that topramezone, thiophene ketone sulphur are grand
And atrazine, three is compounding can preferably prevent and treat corn field annual broadleaf weed and grassy weed, shows excellent
Synergistic effect, and be a kind of agricultural herbicide composition to corn safety.
Furthermore, The present invention gives the preparation formulation of the grand corn field herbicide composition of the ketone sulphur containing thiophene.
Additionally, it is miscellaneous preventing and treating corn field annual broadleaf weed and grass family to present invention also offers said herbicidal composition
Application on grass.
For achieving the above object, the present invention takes following technical scheme:
The corn field herbicide composition that a kind of ketone sulphur containing thiophene is grand, including active ingredient topramezone, thiophene ketone sulphur is grand goes with green bristlegrass
Tianjin, wherein, it is 0.5%～30% that topramezone accounts for the percentage by weight of composition, the grand weight hundred accounting for composition of thiophene ketone sulphur
Proportion by subtraction is 0.5%～30%, and it is 5%～80% that atrazine accounts for the percentage by weight of composition.
Preferred as technical scheme, in the corn field herbicide composition that the described ketone sulphur containing thiophene is grand, topramezone accounts for group
The percentage by weight of compound is 1%～20%, and the grand percentage by weight accounting for composition of thiophene ketone sulphur is 1%～20%, and atrazine accounts for
The percentage by weight of composition is 20%～70%.
Preferred as technical scheme, in the corn field herbicide composition that the described ketone sulphur containing thiophene is grand, topramezone, thiophene
The grand percentage accounting for described composition total weight with atrazine content sum of ketone sulphur is 6%～90%.
Further, the corn field herbicide composition that the described ketone sulphur containing thiophene is grand is used for preventing and treating corn field weed, the suitableeest
In corn field annual broadleaf weed and grassy weed.
The corn field herbicide composition grand for the ease of using the ketone sulphur containing thiophene of the present invention in field, obtains due
Control of weeds effect, can be prepared as the agriculturally permission of multi-form by the most conventional Pesticide formulation mode
Formulation.These formulations can be suspending agent, water dispersible granules, wettable powder or dispersible oil-suspending agent.To preparation
For the technical staff of manufacture field, when preparing above-mentioned formulation, except including that topramezone, thiophene ketone sulphur are grand with atrazine three kinds
Outside herbicidal active component, also need to use one or more suitable auxiliary agents.
During preparation suspending agent, available auxiliary agent includes: dispersant such as polycarboxylate, lignosulfonates, alkylnaphthalene sulphur
In hydrochlorate (dispersing agent NNO), TERSPERSE 2020 (Huntsman Corporation of the U.S. produces, alkyl naphthalene sulfonic acid salt) one
Plant or multiple；Emulsifying agent such as Nongru-700 # (common name: alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201,
This dish-60# (common name: Span60), Tween-60 # (common name: polyoxyethylene sorbitan
Stearate), agriculture breast 1601# (common name: triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer),
One or more in TERSPERSE 4894 (Huntsman Corporation of U.S. product)；Wetting agent such as alkylphenol-polyethenoxy base
Ether formaldehyde condensation products sulfate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkane
In base sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500 (Huntsman Corporation of U.S. product) a kind of or
Multiple；In thickener such as xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate one or more；Preservative such as formaldehyde,
In benzoic acid, Sodium Benzoate one or more；In stabilizer such as epoxidized soybean oil, epoxychloropropane, triphenyl phosphate one
Plant or multiple；Defoamer such as silicone defoamer；Antifreezing agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts
In class such as sodium chloride one or more；Water is deionized water.
During preparation water dispersible granules, those skilled in the art are very familiar with using corresponding auxiliary agent to complete the present invention.Available
Dispersant such as polycarboxylate (TERSPERSE 2700, T36, GY-D06 etc.), lignosulfonates, alkyl naphthalene sulfonic acid
In salt one or more；In wetting agent such as alkyl sulfate, alkylsulfonate, naphthalene sulfonate one or more；Disintegrant
As in ammonium sulfate, sodium sulphate, polyvinylpyrrolidone, starch and derivative thereof, bentonite one or more；Binding agent
Such as one or more in starch, glucose, polyvinyl alcohol, polyethylene glycol, sodium carboxymethylcellulose, sucrose；Filler
As diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
During preparation wettable powder, spendable dispersant such as polycarboxylic acid salt (TERSPERSE 2700, T36, GY-D06
Deng), lignin sulfonate (Ufoxane 3A, Borresperse NA, Borresperse CA-SA etc.), naphthalene
With alkyl naphthalene formaldehyde condensate sulfonates class (NNO, MF, Morwet D-425, Tamol NN, TERSPERSE2020
Deng), Nekal BX (nekal), EO-PO block polyether class, alkylphenol-polyethenoxy base ether phosphate,
Alkylphenol-polyethenoxy base ether formaldehyde condensation products sulfate (SOPA), in one or more；Wetting agent such as Sulfates
(K-12), in Sulfonates (ABS-Na, BX, Terwet 1004 etc.), compound wetting agent (Morwet EFW)
One or more；Filler such as diatomite, kaolin, fine particle calcium carbonate, talcum powder, white carbon, attapulgite, potter's clay, sulfuric acid
Ammonium, urea, sucrose, glucose, cornstarch, sodium sulphate, sodium polyphosphate etc. one or more.
When preparation dispersibles oil-suspending agent, available auxiliary agent includes: dispersant such as polycarboxylate, alkylnaphthalene sulfonate,
One or more in TERSPERSE 2425 (Huntsman Corporation of the U.S. produces, alkyl naphthalene sulfonic acid salt)；Emulsifying agent such as agriculture
Breast 700# (common name: alkylphenol formaldehyde APEO), agriculture breast 2201, this dish-60 (common name: sorbitol anhydride
Monostearate), Tween-60 (common name: sorbitan fatty acid ester APEO), agriculture breast 1601# (logical
By name: triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer), (U.S.'s Hensel steps public affairs to TERSPERSE 4894
Department produces), one or more in TERSPERSE 2500 (Huntsman Corporation of U.S. product)；Wetting agent such as alkyl phenol
Polyoxyethylene ether formaldehyde condensation products sulfate, APES phosphate, phenethyl phenol polyethenoxy base ether phosphorus
Acid esters, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500 (Huntsman Corporation of U.S. product)
In one or more；One or more in thickener such as white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate；Antifreeze
Agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts such as one or more in sodium chloride；Decentralized medium is as big
One or more in soya-bean oil, rapeseed oil, corn oil, methyl oleate, castor oil.
Compared with existing corn field herbicide, herbicidal composition of the present invention has the beneficial effect that
(1) present invention has successfully filtered out topramezone, the grand Herbicidal combinations with atrazine ternary built of thiophene ketone sulphur,
The activity of weeding of these three active ingredient and effect are more than simple superposition, but show synergistic effect significantly.With
Existing topramezone is compared with atrazine binary built Herbicidal combinations, and herbicidal effect is the most excellent, is particularly suited for
Corn field annual broadleaf weed and the preventing and treating of grassy weed.
(2) present invention expands weed control spectrum, reduces pesticide cost, and the activity of weeding that three kinds of mechanism of action is different
Composition compounds, and is conducive to delaying corn field weed to topramezone, the aggravation of the grand resistance with atrazine of thiophene ketone sulphur.
(3) the multiple formulation meeting agricultural production demand that Herbicidal combinations of the present invention can be prepared, and to corn
Security is good, meets the security requirement of pesticidal preparations.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and beneficial effect clearer, it is easy to ordinary skill people
The understanding of member and enforcement, below in conjunction with specific embodiment, be further elaborated the present invention.
(1) part prepared by preparation
Example of formulations 1
Weigh that 50 grams of topramezone, 300 grams of thiophene ketone sulphur is grand, 200 grams of atrazines, 30 grams of Nongru-700 #, 30 grams of benzene second
Base phenol polyethenoxy base ether phosphate, 20 grams of dispersing agent NNOs, 20 grams of polyvinyl alcohol, 5 grams of xanthans, 40 grams of sodium chloride,
10 grams of formaldehyde, 10 grams of organic silicon defoamers (trade name: s-29 Nanjing "four news" (new ideas applied chemistries product company produces), go from
Sub-water adds to 1000 gram weight parts.Above-mentioned raw materials is blended, high speed shear dispersion 30min, prepares with after sand mill sand milling
Active constituent content is 55% topramezone thiophene ketone sulphur grand atrazine suspending agent.
Example of formulations 2
Weigh that 30 grams of topramezone, 200 grams of thiophene ketone sulphur is grand, 500 grams of atrazines, 30 grams of sodium lignin sulfonates, 20 grams
TERSPERSE 4894 (Huntsman Corporation of U.S. product), 20 grams of sodium naphthalene sulfonates, 15 grams of aluminium-magnesium silicates, 10 grams of swellings
Soil, 20 grams of urea, 10 grams of benzoic acid, 8 grams of organic silicon defoamer (trade names: s-29 Nanjing "four news" (new ideas applied chemistry product
Company produce), 10 grams of epoxychloropropane, deionized water adds to 1000 gram weight parts.Above-mentioned raw materials is blended, at a high speed
Shear dispersion 30min, be that the 73% topramezone thiophene grand green bristlegrass of ketone sulphur is gone with preparing active constituent content after sand mill sand milling
Tianjin suspending agent.
Example of formulations 3
Weigh that 60 grams of topramezone, 50 grams of thiophene ketone sulphur is grand, 410 grams of atrazines, 20 grams of this dish-60#, 20 grams of TERSPERSE
2500 (Huntsman Corporation of U.S. products), 20 grams of TERSPERSE 2020 (Huntsman Corporation of U.S. product), 20 grams
Xanthans, 5 grams of bentonites, 40 grams of glycerine, 10 grams of Sodium Benzoates, 5 grams of organic silicon defoamer (trade name: s-29
Nanjing "four news" (new ideas applied chemistries product company produces), deionized water adds to 1000 gram weight parts.Above-mentioned raw materials is blended, high
Speed shears dispersion 30min, is the 52% topramezone thiophene grand green bristlegrass of ketone sulphur with preparing active constituent content after sand mill sand milling
Remove Tianjin suspending agent.
Example of formulations 4
Weigh 200 grams of topramezone, 70 grams thiophene ketone sulphur is grand, 430 grams of atrazines, 30 grams of TERSPERSE 2700 are (poly-
Carboxylate, Huntsman Corporation of the U.S. produce), 20 grams of Negels, 10 grams of Nekal BX (dibutyl naphthalenesulfonic acid
Sodium), 10 grams of alkylsulfonates, 20 grams of polyethylene glycol, 20 grams of ammonium sulfate, kaolin adds to 1000 gram weight parts.On
State raw material frequent regulation water intaking dispersible granule method i.e. mix, ultra micro air-flow crushing, mixing, granulation step, produced
Effective component content is the 70% topramezone thiophene grand atrazine water dispersible granule of ketone sulphur.
Example of formulations 5
Weigh 300 grams of topramezone, 100 grams thiophene ketone sulphur is grand, 200 grams of atrazines, 30 grams of TERSPERSE 2700 are (poly-
Carboxylate, Huntsman Corporation of the U.S. produce), 30 grams of GY-D06 (polycarboxylate), 20 grams of Nekal BX (dibutyl
Sodium naphthalene sulfonate), 20 grams of K-12 (lauryl sodium sulfate), attapulgite adds to 1000 gram weight parts.Above-mentioned raw materials
Often the method for regulation water intaking dispersible granule i.e. mix, ultra micro air-flow crushing, mixing, granulation step, produce active ingredient
Content is the 60% topramezone thiophene grand atrazine water dispersible granule of ketone sulphur.
Example of formulations 6
Weigh that 30 grams of topramezone, 70 grams of thiophene ketone sulphur is grand, 350 grams of atrazines, 25 grams of TERSPERSE 2700 (poly-carboxylics
Hydrochlorate), 20 grams of Negels, 20 grams of Nekal BXs (nekal), 15 grams of K-12 (dodecanes
Base sodium sulphate), white carbon adds to 1000 gram weight parts.The method of above-mentioned raw materials frequent regulation water intaking dispersible granule is the most mixed
Conjunction, ultra micro air-flow crushing, mixing, granulation step, producing active constituent content is that 45% topramezone thiophene ketone sulphur is grand
Atrazine water dispersible granule.
Example of formulations 7
Weigh that 10 grams of topramezone, 60 grams of thiophene ketone sulphur is grand, 430 grams of atrazines, 40 grams of GY-D06 (polycarboxylic acid salt),
30 grams of Morwet D-425 (alkylnaphthalene sulfonate formaldehyde condensation products), 20 grams of Morwet EFW (compound wetting agent),
Diatomite fills up the weight portion to 1000 grams.Above-mentioned raw materials is blended, ultra micro air-flow crushing, hybrid technique step, system
Standby that active constituent content is 50% topramezone thiophene ketone sulphur grand atrazine wettable powder.
Example of formulations 8
Weigh 20 grams of topramezone, 80 grams thiophene ketone sulphur is grand, 800 grams of atrazines, 15 grams of Borresperse CA-SA are (wooden
Quality sulfoacid calcium), 10 grams of Nekal BXs (nekal), 15 grams of Terwet 1004 (Sulfonates),
Ammonium sulfate fills up the weight portion to 1000 grams.Above-mentioned raw materials is blended, ultra micro air-flow crushing, hybrid technique step, system
Standby that active constituent content is 90% topramezone thiophene ketone sulphur grand atrazine wettable powder.
Example of formulations 9
Weigh that 5 grams of topramezone, 5 grams of thiophene ketone sulphur is grand, 50 grams of atrazines, 30 grams of calcium lignosulfonate (Borresperse
CA-SA), 40 grams of alkylnaphthalene sulfonate formaldehyde condensation products (Tamol NN), 20 grams of Sulfonateses (BX), sucrose adds
The weight portion of foot to 1000 grams.Above-mentioned raw materials is blended, ultra micro air-flow crushing, hybrid technique step, is prepared into effectively
Component content is 6% topramezone thiophene ketone sulphur grand atrazine wettable powder.
Example of formulations 10
Weigh that 25 grams of topramezone, 55 grams of thiophene ketone sulphur is grand, 300 grams of atrazines, 30 grams of agriculture breast 1601#, 20 grams of TERSPERSE
2500 (Huntsman Corporation of U.S. products), 30 grams of TERSPERSE 2425 (Huntsman Corporation of U.S. product), 30 grams of silicic acid
Magnalium, 50 grams of propane diols, corn oil adds to 1000 gram weight parts.Above-mentioned raw materials is blended, high speed shear dispersion 30min,
It is that the 38% topramezone thiophene grand atrazine of ketone sulphur dispersibles oil-suspending agent with preparing active constituent content after sand mill sand milling.
Example of formulations 11
Weigh 100 grams of topramezone, 150 grams thiophene ketone sulphur is grand, 200 grams of atrazines, 30 grams of TERSPERSE 4894 are (beautiful
Huntsman Corporation of state produces), 20 grams of TERSPERSE 2500 (Huntsman Corporation of U.S. product), 30 grams of polycarboxylic acids sodium, 30
Gram white carbon, 50 grams of urea, methyl oleate adds to 1000 gram weight parts.Above-mentioned raw materials is blended, and high speed shear is disperseed
30min, is that the 45% topramezone thiophene grand atrazine of ketone sulphur dispersibles oil with preparing active constituent content after sand mill sand milling
Suspending agent.
Example of formulations 12
Weigh that 40 grams of topramezone, 40 grams of thiophene ketone sulphur is grand, 320 grams of atrazines, 40 grams of Tween-60s, 30 grams of TERSPERSE
2500 (Huntsman Corporation of U.S. products), 30 grams of TERSPERSE 2425 (Huntsman Corporation of U.S. product), 30 grams of swellings
Soil, 50 grams of glycerine, castor oil adds to 1000 gram weight parts.Above-mentioned raw materials is blended, high speed shear dispersion 30min,
It is that the 40% topramezone thiophene grand atrazine of ketone sulphur dispersibles oil-suspending agent with preparing active constituent content after sand mill sand milling.
(2) Biometric portion
Assays Example 1
Illustrate that topramezone, thiophene ketone sulphur are grand annual wealthy to corn field with atrazine below by Toxicity Determination
Leaf weeds and the synergistic effect of grassy weed.
In order to prevent and treat corn field annual broadleaf weed and grassy weed, inventor is grand and green bristlegrass with topramezone, thiophene ketone sulphur
Going to Tianjin to carry out the most compounding synergy research, concrete grammar is as follows.
Subjects is green bristlegrass (Setaria viridis), eleusine indica (Eleusine indica), Amaranthus retroflexus (Amaranthus
Retroflexus), piemarker (Abutilon theophrasti).The seed of subjects is collected in field, and percentage of seedgermination exists
More than 95%.Former medicine is configured to the test medicine needed, and test method is with reference to " People's Republic of China's agricultural industry mark
Quasi-NY/T1155.7-2006 farm-chemical indoor determination test rule herbicide the 7th part: the synergy of mixture is surveyed
Fixed ".First (preventive effect is pressed in the range of 5%～90% single dose and each Mixed Pharmacy to be arranged 3～4 variable concentrations gradients
Geometric progression sets), if 1 clear water comparison, it is repeated 4 times.
Cultivation for examination weeds uses indoor pot cultivation.Test soil is the test special soil that non-medication plot is collected,
Take flowerpot of the same size, be filled to soil, at 2/3 height, add water and treat soil complete wetting, by vernalization in biochemical cultivation case
The weed seed showed money or valuables one carries unintentionally uniformly is placed in flowerpot, each about 100 of every basin, and blinding 0.5～1cm is normal in being placed on greenhouse
Rule are cultivated, and are 80 strains by every basin weeds fixed number after weeds emerge.When the 3～5 leaf phase of weeds, will with laryngeal spray
Liquid is uniformly sprayed onto on weeds plant, to be uniformly thoughtfully as the criterion, cultivates and observe after dispenser in continuing to be placed in greenhouse.
The corn field herbicide composition that the ketone sulphur containing thiophene of employing co-toxicity coefficient method evaluation present invention offer is grand is miscellaneous to corn field
The activity of grass, the preventive effect probability value of target weeds is sought regression equation, and is calculated by logarithm and medicament with drug concentration
The medicament ED to weeds50Value, then tries to achieve co-toxicity coefficient.The compound drug synergy to weeds is evaluated with co-toxicity coefficient
Effect, co-toxicity coefficient > 120 it is expressed as synergistic effect, co-toxicity coefficient is expressed as summation action between 80～120, altogether poison
< 80 are expressed as antagonism to coefficient.
The present embodiment 1 the results are shown in Table 1 to table 4.
The grand Toxicity Determination with atrazine combination to green bristlegrass of table 1 topramezone, thiophene ketone sulphur
The grand Toxicity Determination with atrazine combination to eleusine indica of table 2 topramezone, thiophene ketone sulphur
The grand Toxicity Determination with atrazine combination to Amaranthus retroflexus of table 3 topramezone, thiophene ketone sulphur
The grand Toxicity Determination with atrazine combination to piemarker of table 4 topramezone, thiophene ketone sulphur
Toxicity Determination result (table 1 to table 4) shows, the grand corn field herbicide composition of the ketone sulphur containing thiophene is by weight
Percentages, topramezone 0.5%～30%, thiophene ketone sulphur grand 0.5%～30%, the ratio of atrazine 5%～80% is used with, right
Green bristlegrass, eleusine indica, Amaranthus retroflexus, piemarker have preferable virulence, all have preferable synergistic effect.Especially, described
In the corn field herbicide composition that the ketone sulphur containing thiophene is grand, it is 1%～20% that topramezone accounts for the percentage by weight of composition, thiophene
The grand percentage by weight accounting for composition of ketone sulphur is 1%～20%, and atrazine accounts for the percentage by weight of composition when being 20%～70%,
Green bristlegrass, eleusine indica, Amaranthus retroflexus, piemarker are had excellent virulence, and synergistic effect is the most prominent.
Biological Examples 2, prevents and treats corn field weed field control effectiveness test
Inventor has carried out example of formulations 6 in 2014 in Baoji, Shaanxi province city, and (45% topramezone thiophene ketone sulphur is grand
Atrazine water dispersible granule) preventing and treating corn field weed field control effectiveness test, demonstrate the preventing and treating to corn field weed of this medicament
Effect and the security to corn.
Trial crops is corn, and controlling object is corn field annual broadleaf weed and grassy weed (green bristlegrass, Cowhells
Grass, Amaranthus retroflexus, piemarker), weed size is in 2～5 leaf phases.Test is located at Mei County, Baoji, and experimental plot physical features is smooth,
Soil is loam, middle fertility, and pH value 7.1, during test, rich water quality management is medium.Test medicine and dosage refer to table 5.
Separately setting blank, often process 4 times and repeat, every community 30, Gong40Ge community, random district, community group arranges.Adopt
With conventional spray-on process, mu dispenser liquid 45kg.
Corn field weed field control effectiveness test result prevented and treated by table 5
As can be seen from Table 5, corn field weed is had very by the 45% topramezone thiophene grand atrazine water dispersible granule of ketone sulphur
Good prevention effect, sprays 1 time, to after corn field weed medicine 20 days by 20 grams/acre, 18 grams/acre, 16 grams/acre
Average preventive effect is respectively 94.37%, 91.47%, 87.52%, hence it is evident that be better than the 28% topramezone thiophene grand wettable powder of ketone sulphur
Agent 10 grams/acre, 40% topramezone atrazine suspending agent 40 grams/acre, 60% thiophene ketone sulphur grand atrazine wettable powder
50 grams/acre, 30% topramezone suspending agent 7 grams/acre, 21% thiophene ketone sulphur precititation dispersible granule 10 grams/acre, 50% atrazine
The preventive effect that suspending agent is 150 grams/acre.By to significance of difference analysis in after medicine 20 days, 45% topramezone thiophene ketone sulphur is grand
Between atrazine water dispersible granule and other control treatment, preventive effect difference reaches the pole level of signifiance.
Security survey, observes during test, and all reagent agents, to corn growth safety, occur without poisoning phenomenon.
From above example, the corn field herbicide composition that a kind of ketone sulphur containing thiophene is grand, its active component is according to weight
Amount percentage topramezone 0.5%～30%, thiophene ketone sulphur grand 0.5%～30%, atrazine 5%～80% compounds, and can be made into
Suspending agent, water dispersible granules, wettable powder or dispersible oil-suspending agent, to corn field annual broadleaf weed and standing grain this
Section weeds have significant prevention effect, and synergistic effect is obvious, reduces dosage and drug cost, and to corn safety
Well, it is preventing and treating corn field annual broadleaf weed and the favourable agents of grassy weed, therefore produces to have and widely should
Use prospect.
In sum, the composition of the present invention is to use three kinds of active component compound schemes, and its activity and herbicidal effect are not
The simple superposition of each composition activity, compared with existing unitary agent or binary built preparation, except having significant weeding effect
Outside Guo, and having significant synergistic effect, control of weeds spectrum expands, and cost accounting reduces, good to corn safety, symbol
Close the security requirement of pesticidal preparations.
Claims (6)
1. the corn field herbicide composition that a ketone sulphur Han thiophene is grand, it is characterised in that include active ingredient topramezone,
Thiophene ketone sulphur is grand and atrazine, and wherein, it is 0.5%～30% that topramezone accounts for the percentage by weight of composition, and thiophene ketone sulphur is grand to be accounted for
The percentage by weight of composition is 0.5%～30%, and it is 5%～80% that atrazine accounts for the percentage by weight of composition.
The corn field herbicide composition that the ketone sulphur containing thiophene the most according to claim 1 is grand, it is characterised in that described
It is 1%～20% that topramezone accounts for the percentage by weight of composition, the percentage by weight that thiophene ketone sulphur is grand accounts for composition be 1%～
20%, it is 20%～70% that atrazine accounts for the percentage by weight of composition.
The corn field herbicide composition that the ketone sulphur containing thiophene the most according to claim 1 and 2 is grand, it is characterised in that
The grand percentage accounting for described composition total weight with atrazine content sum of described topramezone, thiophene ketone sulphur is 6%～90%.
The formulation of the corn field herbicide composition that the ketone sulphur containing thiophene the most according to claim 1 is grand is suspending agent, water
Dispersible granule, wettable powder or dispersible oil-suspending agent.
The grand corn field herbicide composition of the ketone sulphur containing thiophene the most according to claim 1 is on preventing and treating corn field weed
Purposes.
The grand corn field herbicide composition of the ketone sulphur containing thiophene the most according to claim 5 is on preventing and treating corn field weed
Purposes, it is characterised in that described corn field weed includes annual broadleaf weed and grassy weed.
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| CN104839190B (en) * | 2015-04-24 | 2017-05-31 | 安徽丰乐农化有限责任公司 | It is a kind of containing topramezone and the grand maize post-emergence compound herbicide of thiophene ketone sulphur |
| CN104782644A (en) * | 2015-04-30 | 2015-07-22 | 湖南海利常德农药化工有限公司 | Weeding composition |
| CN105409994A (en) * | 2015-11-18 | 2016-03-23 | 广东中迅农科股份有限公司 | Herbicide for corn field |
| CN105340939A (en) * | 2015-11-18 | 2016-02-24 | 广东中迅农科股份有限公司 | Corn field weeding composition |
| CN108064872A (en) * | 2017-12-25 | 2018-05-25 | 南京红太阳股份有限公司 | A kind of grand Herbicidal combinations and its application with azoles humulone of sulphur of ketone containing thiophene |
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| HUP0303734A2 (en) * | 2001-02-14 | 2004-03-29 | Monsanto Technology Llc | Compositions containing an oil-soluble herbicide and a water-soluble herbicide |
| CN101642125A (en) * | 2009-09-08 | 2010-02-10 | 深圳诺普信农化股份有限公司 | Oil-suspended injection composition containing mesotrione |
| CN103719130A (en) * | 2013-12-17 | 2014-04-16 | 济南科赛基农化工有限公司 | Corn field efficacy enhancement weed killing combination containing thiencarbazone-methyl, mesotrione and atrazine |
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