CN104970029A - Herbicide composition containing mesotrione, florasulam and metolachlor - Google Patents
Herbicide composition containing mesotrione, florasulam and metolachlor Download PDFInfo
- Publication number
- CN104970029A CN104970029A CN201510445746.8A CN201510445746A CN104970029A CN 104970029 A CN104970029 A CN 104970029A CN 201510445746 A CN201510445746 A CN 201510445746A CN 104970029 A CN104970029 A CN 104970029A
- Authority
- CN
- China
- Prior art keywords
- florasulam
- mesotrione
- herbicidal composition
- isopropyl methoxalamine
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 101
- 239000005578 Mesotrione Substances 0.000 title claims abstract description 92
- 239000005529 Florasulam Substances 0.000 title claims abstract description 90
- 239000000203 mixture Substances 0.000 title claims abstract description 88
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- QZXATCCPQKOEIH-UHFFFAOYSA-N Florasulam Chemical compound N=1N2C(OC)=NC=C(F)C2=NC=1S(=O)(=O)NC1=C(F)C=CC=C1F QZXATCCPQKOEIH-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000004009 herbicide Substances 0.000 title abstract description 50
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- 239000004480 active ingredient Substances 0.000 claims abstract description 31
- 239000000080 wetting agent Substances 0.000 claims abstract description 28
- 239000002270 dispersing agent Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 18
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- 229910052739 hydrogen Inorganic materials 0.000 description 1
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- 239000000787 lecithin Substances 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- LCRMGUFGEDUSOG-UHFFFAOYSA-N naphthalen-1-ylsulfonyloxymethyl naphthalene-1-sulfonate;sodium Chemical compound [Na].C1=CC=C2C(S(=O)(OCOS(=O)(=O)C=3C4=CC=CC=C4C=CC=3)=O)=CC=CC2=C1 LCRMGUFGEDUSOG-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 108010001545 phytoene dehydrogenase Proteins 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
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- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
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- 235000010232 propyl p-hydroxybenzoate Nutrition 0.000 description 1
- QELSKZZBTMNZEB-UHFFFAOYSA-N propylparaben Chemical compound CCCOC(=O)C1=CC=C(O)C=C1 QELSKZZBTMNZEB-UHFFFAOYSA-N 0.000 description 1
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- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
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- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the technical field of pesticides, and in particular relatesto a herbicide composition containing mesotrione, florasulam and metolachlor. The herbicide composition comprises active ingredients and auxiliary materials, wherein the active ingredients comprise the following components in parts by weight: 1-80 parts of mesotrione, 0.1-10 parts of florasulam and 10-90 parts of metolachlor; the auxiliary materials comprise one or more of a safener, a wetting agent, a dispersant, a thickener, an anti-freezing agent, a preservative, a thixotropic agent, a defoaming agent, a disintegrating agent, a binder, a carrier and a solvent; the amount of the active ingredients accounts for 1%-99% of the total amount of the composition. The herbicide composition provided by the invention has good control effect, can become effective quickly, can kill weeds thoroughly, can be used for controlling weeds in a corn field effectively, can be prepared in the form of a suspension emulsion, a dispersible oil suspension, wettable powder or water dispersible granules, can be taken as a herbicide for treating stems and leaves in a corn field, and has closed weed control effect.
Description
Technical field
The present invention relates to technical field of pesticide, be specifically related to a kind of herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine.
Background technology
Corn herbicide kind is more, can be divided into cauline leaf process weed killer herbicide and closed soil treatment weed killer herbicide according to application method.Cauline leaf process weed killer herbicide refers to after weeds emerge, directly be applied to the medicament that weeds cauline leaf kills weeds, its using method, for weed killer herbicide is diluted in a certain amount of water, carries out sprinkling process to weeds seedling, eliminates weeds by weeds cauline leaf to the absorption of medicine and conduction.Closed soil treatment weed killer herbicide in use, is spread on upper soll layer weed killer herbicide or admixes in soil by mixed native operation handlebar weed killer herbicide, setting up a weed killer herbicide confining bed, to kill the weeds of sprouting; This kind of weed killer herbicide can be absorbed by the root of weeds, tooth sheath or upper hypocotyl etc. and play a role.
Now weed killer herbicide kind is commercially varied, and the long-term single use of a lot of weed killer herbicide can make weeds develop immunity to drugs, and brings a lot of inconvenience to cultivating of peasant.Current corn field herbicide mainly herbicide after seedling, the impact of weed killer herbicide climate factor is closed before seedling, effect cannot ensure, herbicide after seedling a drug can control the weeds of a season of growth, herbicide after seedling mainly nicosulfuron class and atrazine class conventional at present, nicosulfuron starts to produce resistance owing to using year after year, but do not have other better medicaments to substitute at present, atrazine class dosing is comparatively large, and the lasting period is long, residual high, easily poisoning is produced to succession crop.Therefore, be badly in need of at present that a kind of control efficiency is good, instant effect and thoroughly can kill the corn field herbicide of weeds.
Summary of the invention
The object of this invention is to provide a kind of herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine, the control efficiency of this herbicidal composition is good, instant effect, dead grass is thorough, can effective control of maize field crop smothering, suspended emulsion can be prepared into, dispersible oil-suspending agent, wetting powder or water dispersible granules, can be used as corn field cauline leaf process weed killer herbicide to use, there is closed herbicidal effect.
In order to realize above object, the present invention adopts following technical scheme:
A kind of herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine, comprise active ingredient and auxiliary material, described active ingredient is composed as follows by weight: mesotrione 1-80 part, florasulam 0.1-10 part, isopropyl methoxalamine 10-90 part, described auxiliary material is one or more in safener, wetting agent, dispersant, thickener, antifreezing agent, preservative, thixotropic agent, defoamer, disintegrant, binding agent, carrier or solvent, and described active constituent content is 1-99%.
Described herbicidal composition formulation is suspended emulsion, dispersibles oil-suspending agent, wetting powder or water dispersible granules.
When described herbicidal composition is suspended emulsion, described auxiliary material be selected from dispersant, wetting agent, emulsifier, thickener, antifreezing agent, preservative, defoamer, thixotropic agent one or more.
Described herbicidal composition is composed as follows by mass percentage: the active ingredient of 10-80%, the dispersant of 0.3-9%, the emulsifier of 1-12%, the wetting agent of 0.3%-5%, the thickener of 0.1%-2%, the antifreezing agent of 0.5%-8%, the preservative of 0.1%-3%, all the other are water;
Described active ingredient is composed as follows by weight: mesotrione 1-20 part, florasulam 0.1-5 part, isopropyl methoxalamine 20-60 part.
When described herbicidal composition is for dispersibling oil-suspending agent, described auxiliary material be selected from dispersant, emulsifier, wetting agent, thickener, solvent one or more.
Described herbicidal composition is composed as follows by mass percentage: the active ingredient of 20-96%, the wetting agent of 0.5-5%, the dispersant of 1-5%, the emulsifier of 1-15%, 0.2-5% thickener, and all the other are solvent; Described active ingredient is composed as follows by weight: mesotrione 1-15 part, florasulam 0.1-5 part, isopropyl methoxalamine 20-90 part.
When described herbicidal composition is wetting powder, described auxiliary material be selected from wetting agent, dispersant, emulsifier, carrier one or more.
Described herbicidal composition is composed as follows by mass percentage: 20-80% active ingredient, the wetting agent of 0.5-10%, the dispersant of 1-15%, the emulsifier of 1-15%, and all the other are carrier; Described active ingredient is composed as follows by weight percentage: mesotrione 1-20 part florasulam 0.1-5 part isopropyl methoxalamine 20-60 part.
When described herbicidal composition is water dispersible granules, described auxiliary material be selected from wetting agent, dispersant, emulsifier, disintegrant, binding agent, carrier one or more.
Described herbicidal composition is composed as follows by weight percentage: the active ingredient of 20-60%, the wetting agent of 1-5%, the dispersant of 1-10%, the emulsifier of 1-15%, the disintegrant of 1-20%, and all the other are carrier; Described active ingredient is composed as follows by weight: mesotrione 1-20 part, florasulam 1-5 part, isopropyl methoxalamine 20-40 part.
Preferably, in described herbicidal composition, active constituent content is 21-99%.
Preferably, described active ingredient is composed as follows by weight: mesotrione 1-20, part florasulam 0.1-5 part, isopropyl methoxalamine 20-90 part.
Preferably, when described herbicidal composition is suspended emulsion, described composition is composed as follows by mass percentage: the active ingredient of 20-60%, the dispersant of 2-6%, the emulsifier of 2-8%, the wetting agent of 2-4%, the thickener of 0.1-0.9%, the antifreezing agent of 2-5%, the preservative of 0.4-2%, all the other are water.
Preferably, when described herbicidal composition is for dispersibling oil-suspending agent, described composition is composed as follows by mass percentage: the active ingredient of 30-75%, the wetting agent of 1-4%, the dispersant of 2-3%, the emulsifier of 5-8%, 0.5-3% thickener, all the other are solvent.
Preferably, when described herbicidal composition is wetting powder, described herbicidal composition is composed as follows by mass percentage: 20-50% active ingredient, the wetting agent of 0.5-5%, the dispersant of 1-10%, the emulsifier of 3-10%, and all the other are carrier.
Preferably, when described herbicidal composition is water dispersible granules, described composition is composed as follows by weight percentage: the active ingredient of 30-50%, the wetting agent of 2-3%, the dispersant of 3-6%, the emulsifier of 5-10%, the disintegrant of 5-10%, all the other are carrier.
Wherein said dispersant is one or more in sodium lignin sulfonate, calcium lignosulfonate, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonate, alkyl benzene sulfonate calcium salt, alkylbenzenesulfonate amine salt, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products, polyoxyethylene polyoxypropylene block copolymer, carboxymethyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, sodium phosphate trimer or alkylnaphthalene sulfonate condensation polymer.In some embodiments of the invention, di-2-ethylhexylphosphine oxide naphthalene sulfonate is wherein NNO (sodium methylene bis-naphthalene sulfonate).
Described wetting agent is anion wetting agent and/or non-ionic wetting agent, described anion wetting agent is one or more in lauryl sodium sulfate, Negel, fatty alcohol polyglycol ether sulphate, aliphatic alcohol polyethenoxy ether carboxylate or alkylnaphthalene sulfonate, and described non-ionic wetting agent is one or more in fat alcohol polyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO or alkyl naphthalene formaldehyde condensation product.
Described emulsifier is calcium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, agriculture breast 601#, agriculture breast 602#, agriculture breast 1601#, agriculture breast 1602#, 0201B, 0206B, 8206,8205,8209 (agriculture breast series, 02 series, 82 series are Nanjing Teva-Chem. Co., Ltd.'s production), one or more in E600 (Sol dimension Chemical Manufacture).(described several emulsifier is the common auxiliary agent of pesticide field, and also all there are production in other producers, and several emulsifier of the present invention is purchased respectively and changed very much and Sol dimension chemical industry in Nanjing.)
Described thickener is one or more in xanthans, polyvinyl alcohol, sodium alginate, diatomite, starch, kaolin or organobentonite.
Described antifreezing agent is one or more in ethylene glycol, propane diols, glycerine, hexylene glycol, urea, ammonium sulfate, sodium chloride or calcium chloride.
Described preservative is one or more in benzoic acid, Sodium Benzoate, sorbic acid, potassium sorbate, calcium propionate, p-hydroxybenzoic acid isopropyl ester, nipasol.
Described thixotropic agent is one or more in silica, bentonite, aluminium-magnesium silicate.
Described defoamer be long-chain alcohol, polyglycerol, fatty alcohol, silicone based in one or more.
Described carrier is one or more in kaolin, diatomite, precipitated calcium carbonate, white carbon, concave convex rod, soluble starch, talcum powder, mica powder, urea, amine fertilizer, glucose, maltose, sucrose, citric acid, Anhydrous potassium carbonate, Carbon Dioxide hydrogen potassium, anhydrous sodium sulfate, anhydrous sodium bicarbonate, natrium carbonicum calcinatum or anhydrous sodium bicarbonate.
Described solvent is one or more in soybean oil, corn oil, mineral oil (gasoline, diesel oil, machine oil), methyl oleate, 150# solvent naphtha, 200# solvent naphtha.
Described interleaving agent be silica gel, modified silicon oil, stearate soap, one or more in wax emulsion.
Described disintegrant is one or more in sodium bicarbonate, sodium carbonate, bentonite, urea, ammonium sulfate, glucose, PVP, aluminium chloride.
The mesotrione mechanism of action is suppress the activity of PHPPA dioxygenase (HPPD), and amino acid TYR can be converted into plastoquinone by HPPD.Plastoquinone is the co-factor of phytoene desaturase.It is the key enzyme of herxheimer-liked reaction.Mesotrione 3-5 days implants meristematic tissue are used to occur that yellow symptom causes withered spot thereupon, throughout whole strain plant after fortnight.There is faintly acid, in inoic acid soil, can tightly be adsorbed on organic substance; In neutrality or basic soil, with not easily absorbed anionic form existence.Temperature is high, and be conducive to mesotrione drug effect and play, 1h rainfall after dispenser, on mesotrione drug effect without impact.
Florasulam is triazolopyrimidine sulfonamides super-high-efficient weed killer herbicide, is the inhibitor of acetolactate synthestase (ALS).Florasulam is inner-adsorption conduction-type herbicide, can conduct to weeds complete stool, and thus herbicide is thorough, can not recur.
Isopropyl methoxalamine absorbs mainly through the hypocotyl of the young shoot of plant and unifacial leaf and coleoptile, dicotyledon and upwards conducts.The protein synthesis of the main sprout inhibition seed of mechanism of action, secondly suppress choline to infiltrate phosphatide, interference lecithin is formed.Because grassy weed young shoot absorbs energy the force rate broad leaved weed of isopropyl methoxalamine by force, the effect that thus grassy weed prevented and kill off by this medicine is better than broad leaved weed far away.Mainly upwards conduct by root absorption after emerging, suppress the growth of young shoot and root.If soil moisture content is good, weeds are killed in the young shoot phase; If soil moisture is few, along with rainfall soil moisture increases after weeds are unearthed, after weeds absorb all your leaf shrinkages, whole strain is withered, and dispenser should be carried out before weeds germinate.
After different herbicidal activity component mixing, each active component is due to the difference of composition, structure, physicochemical property, makes the synergy between each active component be usually expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and its effect produced is greater than the sum total of each composition effect; And summation action is exactly the sum total that its effect produced equals each composition effect; When antagonism refers to that two kinds of materials act on living organism, create the effect that a kind of material disturbs another material, or the effect of interfering with an opponent each other, make the phenomenon that general effect declines.
The present invention make use of the different mechanisms of action of mesotrione, florasulam, isopropyl methoxalamine three kinds of weed killer herbicides dexterously, is undertaken composite, reach synergistic effect by three.The present invention with reference to co-toxicity coefficient method evaluate three kinds of different activities components composite after interaction, wherein, co-toxicity coefficient >120 is synergistic effect, and co-toxicity coefficient is expressed as summation action between 80-120, and co-toxicity coefficient <80 is expressed as antagonism.Experimental result confirms, after herbicidal composition provided by the invention can be used as corn field seedling, weeds foliar herbicide weed killer herbicide uses, and the co-toxicity coefficient >120 of this herbicidal composition is synergistic effect.Experimental result also shows, herbicidal composition provided by the invention effectively can prevent and kill off the eleusine indica, the green foxtail that existing weed killer herbicide have been produced to very strong resistance, and this herbicidal composition is to corn safety, harmless.
Embodiment
In order to enable those skilled in the art understand technical scheme of the present invention better, below in conjunction with embodiment, set forth technical solution of the present invention further.
Embodiment 1
A kind of suspended emulsion herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 6kg, florasulam 0.2kg, isopropyl methoxalamine 20kg, NNO:8kg, dodecyl sodium sulfate 2kg, calcium dodecyl benzene sulfonate: 2kg, xanthans 0.9kg, ethylene glycol 4kg, Sodium Benzoate 1.5kg, add water to 100kg.Above-mentioned raw materials is mixed, shears evenly, be ground to D (90) and be less than 5 μm, obtain 26.2% mesotrione florasulam isopropyl methoxalamine suspended emulsion.
Embodiment 2
A kind of suspended emulsion herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 6kg, florasulam 0.2kg, isopropyl methoxalamine 30kg, sodium lignin sulfonate 0.5kg, lauryl sodium sulfate 0.3kg, calcium dodecyl benzene sulfonate 3kg, kaolin 0.1kg, ethylene glycol 0.1kg, Sodium Benzoate 0.5kg, adds water to 100kg.Above-mentioned raw materials is mixed, shears evenly, be ground to D (90) and be less than 5 μm, obtain 36.2% mesotrione florasulam isopropyl methoxalamine suspended emulsion.
Embodiment 3
A kind of suspended emulsion herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 20kg, florasulam 1kg, isopropyl methoxalamine 30kg, calcium lignosulfonate 2kg, dodecyl sodium sulfate 0.7kg, calcium dodecyl benzene sulfonate 5kg, organobentonite 0.4kg, propane diols 1kg, Sodium Benzoate 0.4kg, adds water to 100kg.Above-mentioned raw materials is mixed, shears evenly, be ground to D (90) and be less than 5 μm, obtain 51% mesotrione florasulam isopropyl methoxalamine suspended emulsion.
Embodiment 4
A kind of suspended emulsion herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 20kg, florasulam 1kg, isopropyl methoxalamine 60kg, calcium lignosulfonate 6kg, Negel 4kg, calcium dodecyl benzene sulfonate 1kg, kaolin 0.5kg, glycerine 3kg, Sodium Benzoate 0.9kg, adds water to 100kg.Above-mentioned raw materials is mixed, shears evenly, be ground to D (90) and be less than 5 μm, obtain 81% mesotrione florasulam isopropyl methoxalamine suspended emulsion.
Embodiment 5
A kind of containing mesotrione, florasulam and isopropyl methoxalamine dispersible oil-suspending agent herbicidal composition, it is composed as follows: mesotrione 20kg, florasulam 0.2kg, isopropyl methoxalamine 20kg, NNO:2kg, fatty alcohol-polyoxyethylene ether 5kg, calcium dodecyl benzene sulfonate 3kg, organobentonite 1kg, adds soybean oil to 100kg.Above-mentioned raw materials is mixed, shears evenly, be ground to D (90) and be less than 5 μm, obtain 40.2kg mesotrione florasulam isopropyl methoxalamine and dispersible oil-suspending agent.
Embodiment 6
A kind of containing mesotrione, florasulam and isopropyl methoxalamine dispersible oil-suspending agent herbicidal composition, it is composed as follows: mesotrione 15kg, florasulam 0.5kg, isopropyl methoxalamine 60kg, sodium lignin sulfonate 1kg, castor oil polyoxyethylene ether 5kg, calcium dodecyl benzene sulfonate 8kg, organobentonite 0.5kg, adds methyl oleate oil to 100kg.Above-mentioned raw materials is mixed, shears evenly, be ground to D (90) and be less than 5 μm, obtain 75.5% mesotrione florasulam isopropyl methoxalamine and dispersible oil-suspending agent.
Embodiment 7
A kind of containing mesotrione, florasulam and isopropyl methoxalamine dispersible oil-suspending agent herbicidal composition, it is composed as follows: mesotrione 20kg, florasulam 1kg, isopropyl methoxalamine 60kg, NNO:2kg, agriculture breast 601#:5kg, calcium dodecyl benzene sulfonate 5kg, white carbon 0.5kg, adds 150# solvent naphtha to 100kg.Above-mentioned raw materials is mixed, shears evenly, be ground to D (90) and be less than 5 μm, obtain 81% mesotrione florasulam isopropyl methoxalamine and dispersible oil-suspending agent.
Embodiment 8
A kind of containing mesotrione, florasulam and isopropyl methoxalamine dispersible oil-suspending agent herbicidal composition, it is composed as follows: mesotrione 10kg, florasulam 1kg, isopropyl methoxalamine 80kg, NNO:2kg, 0201B#:5kg, calcium dodecyl benzene sulfonate 5kg, white carbon 0.5kg, adds 200# solvent naphtha to 100kg.Above-mentioned raw materials is mixed, shears evenly, be ground to D (90) and be less than 5 μm, obtain 91% mesotrione florasulam isopropyl methoxalamine and dispersible oil-suspending agent.
Embodiment 9
Containing a wetting powder herbicidal composition for mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 6kg, florasulam 0.5kg, isopropyl methoxalamine 30kg, lauryl sodium sulfate 9kg, alkylphenol polyoxyethylene 10kg, aliphatic alcohol polyethenoxy ether carboxylate 12kg, white carbon 5kg, precipitated calcium carbonate complement to 100kg.Above-mentioned raw materials is mixed, after air-flow crushing, obtains 36.5% mesotrione florasulam isopropyl methoxalamine wetting powder.
Embodiment 10
Containing the wetting powder herbicidal composition of mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 10kg, florasulam 0.5kg, isopropyl methoxalamine 30kg, pull open powder 0.3kg, aliphatic amine polyoxyethylene ether 0.2kg, phenethyl phenol polyoxyethanyl polypropylene-base ether 0.2kg, precipitated calcium carbonate complement to 100kg.Above-mentioned raw materials is mixed, after air-flow crushing, obtains 40.5% mesotrione florasulam isopropyl methoxalamine wetting powder.
Embodiment 11
Containing a wetting powder herbicidal composition for mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 15kg, florasulam 1kg, isopropyl methoxalamine 60kg, lauryl sodium sulfate 1kg, alkylnaphthalene sulfonate 1kg, castor oil polyoxyethylene ether 1kg, white carbon complement to 100kg.Above-mentioned raw materials is mixed, after air-flow crushing, obtains 76% mesotrione florasulam isopropyl methoxalamine wetting powder.
Embodiment 12
Containing a water dispersible granules herbicidal composition for mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 6kg, florasulam 0.5kg, isopropyl methoxalamine 20kg, lauryl sodium sulfate 9kg, alkylphenol polyoxyethylene 10kg, aliphatic alcohol polyethenoxy ether carboxylate 10kg, sodium bicarbonate 3kg, white carbon 12kg, precipitated calcium carbonate complementary are to 100kg.Above-mentioned raw materials is mixed, after air-flow crushing wetting powder, add 30kg water and mix, namely extruder grain, oven dry, screening obtain 26.5% mesotrione florasulam isopropyl methoxalamine water dispersible granules.
Embodiment 13
Containing the water dispersible granules herbicidal composition of mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 10kg, florasulam 0.2kg, isopropyl methoxalamine 20kg, pull open powder 0.3kg, aliphatic amine polyoxyethylene ether 0.2kg, phenethyl phenol polyoxyethanyl polypropylene-base ether 0.2kg, bentonite complementary 100kg.Above-mentioned raw materials is mixed, after air-flow crushing wetting powder, add 20kg water and mix, namely extruder grain, oven dry, screening obtain 30.2% mesotrione florasulam isopropyl methoxalamine water dispersible granules.
Embodiment 14
A kind of water dispersible granules herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 20kg, florasulam 0.5kg, isopropyl methoxalamine 20kg, lauryl sodium sulfate 1kg, alkylnaphthalene sulfonate 1kg, castor oil polyoxyethylene ether 0.5kg, sodium bicarbonate 0.5kg, diatomite: 30kg, bentonite complementary is to 100kg.Above-mentioned raw materials is mixed, after air-flow crushing wetting powder, add 25kg water and mix, namely extruder grain, oven dry, screening obtain 40.5% mesotrione florasulam isopropyl methoxalamine water dispersible granules.
Embodiment 15
Containing the water dispersible granules herbicidal composition of mesotrione, florasulam and isopropyl methoxalamine, it is composed as follows: mesotrione 15%, florasulam 0.5%, isopropyl methoxalamine 30%, pull open powder 10%, alkyl benzene calcium sulfonate dispersion 8%, alkylphenol-formaldehyde resin polyoxyethyl ether 12%, white carbon 20%, sodium bicarbonate 2%, precipitated calcium carbonate complementary to 100%.Above-mentioned raw materials is mixed, after air-flow crushing wetting powder, add 26kg water and mix, namely extruder grain, oven dry, screening obtain 45.5% mesotrione florasulam isopropyl methoxalamine water dispersible granules.
Reagent in herbicidal composition provided by the invention and pharmaceutical preparation thereof and raw material all can be buied by market.
Below the synergy effect of herbicidal composition to weeds that above-described embodiment obtains is detected, specific as follows:
Co-toxicity coefficient method is adopted to evaluate the synergistic effect of herbicidal composition provided by the invention and pharmaceutical preparation thereof: to suppress percentage (Y) to ask regression equation with the natural logrithm of drug concentration (X) and medicament to the growth inhibition percentage of target weeds or fresh weight, and calculate medicament to the EC50 value of weeds or EC90 value, then try to achieve co-toxicity coefficient.Compound drug is evaluated to the synergy effect of weeds with co-toxicity coefficient, co-toxicity coefficient >120 is expressed as synergistic effect, co-toxicity coefficient is expressed as summation action between 80 ~ 120, and co-toxicity coefficient <80 is expressed as antagonism.
The co-toxicity coefficient computing formula adopted in the present embodiment is as follows:
Co-toxicity coefficient (CTC)=100/ (EC is mixed × and P mesotrione/EC mesotrione+EC is mixed × and P florasulam/EC florasulam+EC is mixed × P isopropyl methoxalamine/EC isopropyl methoxalamine)
In formula: EC mixes the EC50 value (to three-coloured amaranth and eleusine indica, lower same) into mixture; P mesotrione is mesotrione shared part by weight in mixture active ingredient; P florasulam is florasulam shared part by weight in mixture active ingredient; P isopropyl methoxalamine is isopropyl methoxalamine shared part by weight in mixture active ingredient; EC mesotrione is the EC50 value of mesotrione; EC florasulam is the EC50 value of florasulam; EC isopropyl methoxalamine is the EC50 value of isopropyl methoxalamine.The EC50 value of each group and co-toxicity coefficient are in table 1.
Concrete test:
The herbicidal composition that Example 1-15 obtains is tested, and tests and carries out in the Xiayi corn field of summer of Shangqiu, and each group process repeats for 4 times, and processing area is 20m
2; And respectively with mesotrione, florasulam, isopropyl methoxalamine be control group 1, control group 2, control group 3 carry out comparative trial, the insecticide-applying way of the medicine to be measured that embodiment 1 to embodiment 15, control group 1 (15% mesotrione suspending agent), control group 2 (5% florasulam suspending agent), control group 3 (10% isopropyl methoxalamine suspending agent) provide is the spraying of corn 3-5 leaf phase cauline leaf, 30 days statistics preventive effect results after medicine.Test process, formulation rate and preventive effect the results are shown in Table 2.
Preventive effect computing formula is:
Strain preventive effect (%)=(check plot weeds strain number-treatment region weeds strain number)/weeds strain number × 100, check plot
The EC50 value of the medicine to be measured of each group of table 1. and co-toxicity coefficient
As can be seen from Table 1, in the composite rear gained herbicidal composition of mesotrione, florasulam and isopropyl methoxalamine, the weight ratio of mesotrione, florasulam, isopropyl methoxalamine is when 1 ~ 20:0.1 ~ 5:20 ~ 80, its co-toxicity coefficient is all far more than 120, illustrate that mesotrione, florasulam, isopropyl methoxalamine are after composite, create obvious synergistic effect.
Each group of table 2. corn field weed cauline leaf process medication administration amount to be measured and preventive effect result
As can be seen from Table 2, compared with mesotrione, florasulam, isopropyl methoxalamine single dose, the herbicidal effect of the composite rear gained herbicidal composition of mesotrione, florasulam and isopropyl methoxalamine will apparently higher than any one single dose in three components, significant difference (P < 0.05), create synergistic effect, expand herbicide spectrum.The preventive effect effect of the herbicidal composition that the embodiment of the present invention 1 to embodiment 15 provides to corn field weed all has and significantly improves, significant difference (P < 0.05).
In sum, the invention provides herbicidal composition after mesotrione, florasulam, isopropyl methoxalamine are composite, reach synergistic effect, expand herbicide spectrum, the weeds that the antagonism property of medicine is stronger also can effectively prevent and treat, and do not produce poisoning, can be used for control of maize field weed.
The explanation of above embodiment just for explaining and technical scheme of the present invention being described, but is not intended to limit the present invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine, it is characterized in that, comprise active ingredient and auxiliary material, described active ingredient is composed as follows by weight: mesotrione 1-80 part, florasulam 0.1-10 part, isopropyl methoxalamine 10-90 part, described auxiliary material is one or more in safener, wetting agent, dispersant, thickener, antifreezing agent, preservative, thixotropic agent, defoamer, disintegrant, binding agent, carrier or solvent, and described active constituent content is 1-99%.
2. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 1, it is characterized in that, described herbicidal composition formulation is suspended emulsion, dispersibles oil-suspending agent, wetting powder or water dispersible granules.
3. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 2, it is characterized in that, when described herbicidal composition is suspended emulsion, described auxiliary material be selected from dispersant, wetting agent, emulsifier, thickener, antifreezing agent, preservative, defoamer, thixotropic agent one or more.
4. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 3, it is characterized in that, described herbicidal composition is composed as follows by mass percentage: the active ingredient of 10-80%, the dispersant of 0.3-9%, the emulsifier of 1-12%, the wetting agent of 0.3%-5%, the thickener of 0.1%-2%, the antifreezing agent of 0.5%-8%, the preservative of 0.1%-3%, all the other are water;
Described active ingredient is composed as follows by weight: mesotrione 1-20 part, florasulam 0.1-5 part, isopropyl methoxalamine 20-60 part.
5. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 2, it is characterized in that, when described herbicidal composition is for dispersibling oil-suspending agent, described auxiliary material be selected from dispersant, emulsifier, wetting agent, thickener, solvent one or more.
6. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 5, it is characterized in that, described herbicidal composition is composed as follows by mass percentage: the active ingredient of 20-96%, the wetting agent of 0.5-5%, the dispersant of 1-5%, the emulsifier of 1-15%, 0.2-5% thickener, all the other are solvent; Described active ingredient is composed as follows by weight: mesotrione 1-15 part, florasulam 0.1-5 part, isopropyl methoxalamine 20-90 part.
7. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 2, it is characterized in that, when described herbicidal composition is wetting powder, described auxiliary material be selected from wetting agent, dispersant, emulsifier, carrier one or more.
8. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 7, it is characterized in that, described herbicidal composition is composed as follows by mass percentage: 20-80% active ingredient, the wetting agent of 0.5-10%, the dispersant of 1-15%, the emulsifier of 1-15%, all the other are carrier; Described active ingredient is composed as follows by weight percentage: mesotrione 1-20 part florasulam 0.1-5 part, isopropyl methoxalamine 20-60 part.
9. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 2, it is characterized in that, when described herbicidal composition is water dispersible granules, described auxiliary material be selected from wetting agent, dispersant, emulsifier, disintegrant, binding agent, carrier one or more.
10. the herbicidal composition containing mesotrione, florasulam and isopropyl methoxalamine according to claim 9, it is characterized in that, described herbicidal composition is composed as follows by weight percentage: the active ingredient of 20-60%, the wetting agent of 1-5%, the dispersant of 1-10%, the emulsifier of 1-15%, the disintegrant of 1-20%, all the other are carrier; Described active ingredient is composed as follows by weight: mesotrione 1-20 part, florasulam 1-5 part, isopropyl methoxalamine 20-40 part.
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| CN108703142A (en) * | 2018-08-08 | 2018-10-26 | 许昌市建安区昌盛日化实业有限公司 | A kind of Herbicidal combinations and needle nursery herbicides special |
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