CN102986688A - Soybean field weeding composition and preparation thereof - Google Patents
Soybean field weeding composition and preparation thereof Download PDFInfo
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- CN102986688A CN102986688A CN2012105624958A CN201210562495A CN102986688A CN 102986688 A CN102986688 A CN 102986688A CN 2012105624958 A CN2012105624958 A CN 2012105624958A CN 201210562495 A CN201210562495 A CN 201210562495A CN 102986688 A CN102986688 A CN 102986688A
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Abstract
The invention relates to the technical field of agricultural pesticides, in particular to a soybean field weeding composition and a preparation thereof. The soybean field weeding composition consists of cloransulam-methyl and fomesafen. The herbicide namely the weeding composition has obvious synergized action, and compared with a single preparation, the dosage and the dosage times are greatly reduced, the weeding composition has the advantages of safety, high efficiency, environmental-friendliness and the like, and the generation of drug resistance of weeds is delayed.
Description
Technical field
The present invention relates to technical field of pesticide, particularly a kind of soybean field weeding composition and preparation thereof.
Background technology
Soybean also claims soya bean, green soya bean, black soya bean, is most important beans in the world, and it originates from China, in the existing history in 5000 of the plantation of China, introduces the U.S. in 1804, and to 20 middle of century, soybean becomes southern US and Midwest important crops.Soybean is food the most being rich in nutrition in the leguminous plant and that be easy to digest, is rich in protein, is important food and feed resource.
The weeds of Soybean Field occur general, and are of a great variety, common are barnyard grass, lady's-grass, green foxtail, lamb's-quarters, three-coloured amaranth, knotweed, dayflower, black nightshade, kitchen garden, corn sow thistle, Siberian cocklebur, field bindweed, piemarker etc., and these weeds have had a strong impact on output and the quality of soybean.The use of chemical herbicide is the main method that addresses this problem, and soybean field herbicide commonly used has imazethapyr, fomesafen, chlorimuronethyl, different grass pine, imazamox, Flumetsulam, piperazine humulone etc. at present.
Cloransulammethyl (Cloransulam-methyl), molecular formula are C
14H
11ClFN
5O
5S, structural formula is sulfonylurea herbicide suc as formula shown in the I, through grass cutting blade, root absorption, be accumulated in growing point, suppress acetolactate synthestase (ALS), affect the synthetic of protein, weeds are stopped growing and death, be used for the spraying of Soybean Field cauline leaf, prevent and kill off broad leaved weed.Show that after deliberation spring soybean field broad leaved weed dayflower, smartweed, artemisiifolia are had preferably control efficiency, bitter dish, corn sow thistle are had stronger inhibitory action.
The formula I
Fomesafen (f0mesafen), structural formula is suc as formula shown in the II, it is diphenyl ether herbicide, it is the protoporphyrin oxidase inhibitor, be applicable to soybean, Peanut Fields is prevented and kill off piemarker, acalypha copperleaf, bidens pilosa, Amaranthus, Ambrosia, rape, shepherd's purse, lamb's-quarters, Commelina, datura, black nightshade, pharbitis nilChoisy, carpet weed, plaque holds, Binzhou knotweed, kitchen garden, the thorn bur, wild amaranth, Cassia tora, wolf's milk, clearvers, water sour jujube pin, Physalis, sesbania, common sow thistle, puncture vine, trefoil, nettle, Binzhou Siberian cocklebur, spiny cocklebur, broad leaved weed and the rhizome ofs nutgrass flatsedge such as Siberian cocklebur also have certain preventive effect to grassy weed.Fomesafen can be absorbed by weeds root leaf, makes its rapid withered and yellow death, to soybean safety.
The formula II
All there is certain problem in these weed killer herbicide single doses, and the residual time in soil that has is long, and what have uses the poisoning that easily causes succession crop in the farmland, and the long-term separately use of agricultural chemicals single dose makes weeds produce resistance easily.
Summary of the invention
In view of this, the invention provides a kind of soybean field weeding composition and preparation thereof.This Herbicidal combinations and preparation thereof have obvious synergistic effect by cloransulammethyl and fomesafen is composite, can reduce dosage and medication number of times, have the advantages such as safety, efficient, environmental protection, and can delay resistance weed and produce.
In order to realize the foregoing invention purpose, the invention provides following technical scheme:
The invention provides a kind of Herbicidal combinations, formed by cloransulammethyl and fomesafen.
As preferably, the weight ratio of cloransulammethyl and fomesafen is 1 ︰ 5～20.
Preferably, the weight ratio of cloransulammethyl and fomesafen is 1 ︰ 8～15.
More preferably, the weight ratio of cloransulammethyl and fomesafen is 1 ︰ 10.
The present invention also provides a kind of weed killer herbicide, and acceptable auxiliary material forms on the Herbicidal combinations that is comprised of cloransulammethyl and fomesafen and the Pesticide Science.
As preferably, the formulation of weed killer herbicide is microemulsion, missible oil, suspending agent, wetting powder or water dispersible granules.
As preferably, in microemulsion, the weight percentage of Herbicidal combinations is 1%～20%.
More preferably, in microemulsion, the weight percentage of Herbicidal combinations is 6%～15%.
Preferably, in microemulsion, by weight percentage, and Herbicidal combinations 6%～15%, emulsifier 8%～30%, solvent 10%～15%, cosolvent 1%～10%, water complements to 100%.
As preferably, in missible oil, the weight percentage of Herbicidal combinations is 20%～80%.
More preferably, in missible oil, the weight percentage of Herbicidal combinations is 22%～46%.
Preferably, in missible oil, by weight percentage, and Herbicidal combinations 22%～46%, emulsifier 1%～20%, solvent complements to 100%.
As preferably, in suspending agent, the weight percentage of Herbicidal combinations is 1%～50%.
Preferably, in suspension emulsion, the weight percentage of Herbicidal combinations is 28%～36%.
Preferably, in suspending agent, by weight percentage, and Herbicidal combinations 28%～36%, wetting agent 1%～10%, dispersant 1%～10%, thickener 0.1%～2%, water complements to 100%.
As preferably, in wetting powder or water dispersible granules, the weight percentage of Herbicidal combinations is 1%～90%.
More preferably, in wetting powder, the weight percentage of Herbicidal combinations is 32%～54%.
Preferably, in wetting powder, by weight percentage, and Herbicidal combinations 32%～54%, wetting agent 1%～10%, dispersant 1%～10%, filler complements to 100%.
Preferably, in water dispersible granules, the weight percentage of Herbicidal combinations is 38%～84%.
Preferably, in water dispersible granules, by weight percentage, and Herbicidal combinations 38%～84%, wetting agent 1%～10%, dispersant 1%～10%, disintegrant 0.1%～5%, adhesive 0.1%～5%, filler complements to 100%.
As preferably, emulsifier is selected from one or more the composition in farming breast 500, farming breast 600, Nongru-700, NP series, agricultural newborn 0201B, agricultural newborn 0203B, 2201, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy ether, polyoxyethylene aliphatic alcohol ether, ethoxy castor oil, PMA, fatty acid polyethylene glycol ester, the trilaurin APEO.
As preferably, solvent is selected from one or more the composition in No. 200, the aromatic solvent naphtha, tributyl phosphate, tetrahydrofurfuryl alcohol, oxolane, vegetable oil, paraffin oil, lubricating oil, No. 100, solvent naphtha, No. 150, solvent naphtha, No. 180, solvent naphtha, solvent naphtha.
As preferably, cosolvent is selected from ethanol, isopropyl alcohol, n-butanol or n-amyl alcohol.
As preferably, wetting agent is selected from lauryl sodium sulfate, dodecyl sodium sulfate, calcium dodecyl benzene sulfonate, pulls open powder, one or more the composition in the moistening penetrant t, Negel, fatty alcohol polyglycol ether sulphate, fat alcohol polyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO, Fluhyzon formaldehyde condensation products.
As preferably, dispersant is selected from sodium lignin sulfonate, calcium lignosulfonate, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonate, alkyl amine group taurate, sodium methylene bis-naphthalene sulfonate, carboxymethyl cellulose, sodium phosphate trimer or alkylnaphthalene sulfonate condensation polymer.
As preferably, thickener is selected from xanthans, polyvinyl alcohol, sodium alginate, starch or organobentonite.
As preferably, disintegrant is selected from urea, sodium carboxymethylcellulose, ammonium sulfate, silica gel, PEG or SF-04.
As preferably, adhesive is selected from sucrose, soluble starch, Sodium Polyacrylate, dextrin or xanthans.
As preferably, filler is selected from kaolin, diatomite, precipitated calcium carbonate, attapulgite, white carbon, urea or ammonium sulfate.
Each active component was owing to the difference of composition, structure, physicochemical property, so that the synergy between each active component is typically expressed as synergistic effect, summation action or antagonism after different weed killer herbicide agent active components were mixed.So-called synergistic effect is exactly the mutual synergism between different material, and its produce an effect is greater than the sum total of each composition effect; And summation action is exactly the sum total that its produce an effect equals each composition effect; When antagonism referred to that two kinds of materials act on living organism, a kind of material disturbed the effect of another kind of material, or the effect of interfering with an opponent each other, the phenomenon that general effect is descended.
The invention provides a kind of soybean field weeding composition and preparation thereof.This soybean field weeding composition is comprised of cloransulammethyl and fomesafen.By Toxicity Determination, Herbicidal combinations co-toxicity coefficient provided by the invention shows as obvious synergistic effect all greater than 120; By field control effectiveness test, the integrated control effect of weed killer herbicide provided by the invention reaches 86.5%～96.5%, and the integrated control effect of cloransulammethyl, fomesafen single dose only has respectively 63.6%, 58.8%.This shows that soybean field weeding composition provided by the invention and preparation thereof have greatly reduced dosage and medication number of times, have the advantages such as safety, efficient, environmental protection, and delayed the generation of herbicide resistance.
Embodiment
The invention discloses a kind of soybean field weeding composition and preparation thereof, those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is that all similarly replace and change apparent to those skilled in the art, they all are deemed to be included in the present invention.Method of the present invention and application are described by preferred embodiment, the related personnel obviously can change or suitably change and combination methods and applications as herein described within not breaking away from content of the present invention, spirit and scope, realizes and use the technology of the present invention.
The invention provides a kind of soybean field weeding composition, this Herbicidal combinations is comprised of cloransulammethyl and fomesafen.
The proportioning of the former medicine of weed killer herbicide is most important in the Herbicidal combinations, and the former medicine proportioning of weed killer herbicide can affect the Herbicidal combinations drug effect, and in the present invention, the weight ratio of cloransulammethyl and fomesafen is 1 ︰ 5～20 o'clock, and synergistic effect is remarkable.
In order to make synergistic effect more remarkable, the weight ratio of cloransulammethyl and fomesafen is 1 ︰ 8～15.
When the weight ratio of cloransulammethyl and fomesafen was 1 ︰ 10, synergistic effect was extremely remarkable.
The present invention also provides a kind of weed killer herbicide, and acceptable auxiliary material forms on the Herbicidal combinations that is comprised of cloransulammethyl and fomesafen and the Pesticide Science.
In embodiment provided by the invention, the formulation of weed killer herbicide is microemulsion, missible oil, suspending agent, wetting powder or water dispersible granules.
In embodiment more provided by the invention, the formulation of weed killer herbicide is microemulsion, and the weight percentage of Herbicidal combinations is 1%～20%.
In other embodiment provided by the invention, the weight percentage of Herbicidal combinations is 6%～15% in the microemulsion.
In other embodiment provided by the invention, in the microemulsion, by weight percentage, and Herbicidal combinations 6%～15%, emulsifier 8%～30%, solvent 10%～15%, cosolvent 1%～10%, water complements to 100%.
In embodiment more provided by the invention, the formulation of weed killer herbicide is missible oil, and the weight percentage of Herbicidal combinations is 20%～80%.
In other embodiment provided by the invention, the weight percentage of Herbicidal combinations is 22%～46% in the missible oil.
In other embodiment provided by the invention, in the missible oil, by weight percentage, and Herbicidal combinations 22%～46%, emulsifier 1%～20%, solvent complements to 100%.
Emulsifier is the stabilizing agent of emulsion, is a class surfactant, and its effect is when it is dispersed in dispersate surperficial, form film or electric double layer, can make disperse phase with electric charge, so just can stop the droplet of disperse phase to condense mutually, make the emulsion of formation more stable.In embodiment provided by the invention, emulsifier is selected from one or more the composition in farming breast 500, farming breast 600, Nongru-700, NP series, agricultural newborn 0201B, agricultural newborn 0203B, 2201, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy ether, polyoxyethylene aliphatic alcohol ether, ethoxy castor oil, PMA, fatty acid polyethylene glycol ester, the trilaurin APEO.
When preparation microemulsion or missible oil, need to add certain solvent, assurance can be dissolved pesticide original medicine, again not with pesticide original medicine generation chemical reaction.In embodiment provided by the invention, solvent is selected from one or more the composition in No. 200, the aromatic solvent naphtha, tributyl phosphate, tetrahydrofurfuryl alcohol, oxolane, vegetable oil, paraffin oil, lubricating oil, No. 100, solvent naphtha, No. 150, solvent naphtha, No. 180, solvent naphtha, solvent naphtha.
Cosolvent is the additive in the solvent, can increase solvent to the solvability of solute, does not generate novel compound with the solute reaction again.In embodiment provided by the invention, cosolvent is selected from ethanol, isopropyl alcohol, n-butanol or n-amyl alcohol.
In embodiment more provided by the invention, the formulation of weed killer herbicide is suspending agent, and the weight percentage of Herbicidal combinations is 1%～50%.
In other embodiment provided by the invention, the weight percentage of Herbicidal combinations is 28%～36% in the suspending agent.
In other embodiment provided by the invention, in the suspending agent, by weight percentage, and Herbicidal combinations 28%～36%, wetting agent 1%～10%, dispersant 1%～10%, thickener 0.1%～2%, water complements to 100%.
Thickener claims again gelling agent, can improve system viscosity, makes system keep uniformly stable suspended state or milkiness state, or forms gel.In embodiment provided by the invention, thickener is selected from xanthans, polyvinyl alcohol, sodium alginate, starch or organobentonite.
In embodiment more provided by the invention, the formulation of weed killer herbicide is wetting powder, and the weight percentage of Herbicidal combinations is 1%～90%.
In other embodiment provided by the invention, the weight percentage of Herbicidal combinations is 32%～54% in the wetting powder.
In other embodiment provided by the invention, in the wetting powder, by weight percentage, and Herbicidal combinations 32%～54%, wetting agent 1%～10%, dispersant 1%～10%, filler complements to 100%.
In embodiment more provided by the invention, the formulation of weed killer herbicide is water dispersible granules, and the weight percentage of Herbicidal combinations is 1%～90%.
In other embodiment provided by the invention, the weight percentage of Herbicidal combinations is 38%～84% in the water dispersible granules.
In other embodiment provided by the invention, in the water dispersible granules, by weight percentage, and Herbicidal combinations 38%～84%, wetting agent 1%～10%, dispersant 1%～10%, disintegrant 0.1%～5%, adhesive 0.1%～5%, filler complements to 100%.
Wetting agent is one of insecticides adjuvant, can make material water insoluble or that be not soaked in water for water-moistened solid pesticide, its Main Function is surface tension or the interfacial tension that reduces water, make solid surface energy wetting by water institute, being made into suspension after it can make water-fast agricultural chemicals be watered uses, and can make liquid moistening and expansion on crop plant, thus improve control efficiency, reduce the generation of poisoning.In embodiment provided by the invention, wetting agent is selected from lauryl sodium sulfate, dodecyl sodium sulfate, calcium dodecyl benzene sulfonate, pulls open powder, one or more the composition in the moistening penetrant t, Negel, fatty alcohol polyglycol ether sulphate, fat alcohol polyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO, Fluhyzon formaldehyde condensation products.
Dispersant is a kind of interfacial agent that has simultaneously lipophile and two kinds of opposite nature of hydrophily in molecule, but homogeneous disperses those difficulties to be dissolved in the inorganic of liquid or organic solid particle, also can prevent simultaneously sedimentation and the cohesion of solid particle, form stable suspension.In embodiment provided by the invention, dispersant is selected from sodium lignin sulfonate, calcium lignosulfonate, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonate, alkyl amine group taurate, sodium methylene bis-naphthalene sulfonate, carboxymethyl cellulose, sodium phosphate trimer or alkylnaphthalene sulfonate condensation polymer.
Disintegrant is one of a kind of insecticides adjuvant of accelerating the disintegration in water of water dispersible granules particle, its mechanism of action is mechanical and property non-chemically, its process generally be disintegrant in the particle and medicinal powder by water-wet after, disintegrant imbibition and make active component break down into a tiny material; Or suction dissolving produces localized pocket, makes it be dispersed into the granule size of pulvis before the granulation fully after these depressions are replaced by water.In embodiment provided by the invention, disintegrant is selected from urea, sodium carboxymethylcellulose, ammonium sulfate, silica gel, PEG or SF-04.
In the production process of water dispersible granules, need to add certain adhesive with the cohesiveness of the shot agent that moisturizes, help the shaping of particle and guarantee certain pellet hardness and durability, increase the stability of particle in water.In embodiment provided by the invention, adhesive is selected from sucrose, soluble starch, Sodium Polyacrylate, dextrin or xanthans.
During the preparation pesticidal preparations, must select inert filler, the filler of chemical reaction does not namely occur with pesticide activity component.In embodiment provided by the invention, filler is selected from kaolin, diatomite, precipitated calcium carbonate, attapulgite, white carbon, urea or ammonium sulfate.
Estimate the mixed interaction of two kinds of different herbicidal activity components and usually adopt the co-toxicity coefficient method, the present invention calculates co-toxicity coefficient evaluation cloransulammethyl and fomesafen and uses effect with according to Sun Yunpei (SunY-P) method, and computational methods are as follows:
Calculate preventive effect, calculate concentration EC in the inhibition with method of least squares
50(95% confidence interval);
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100;
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B);
Co-toxicity coefficient (CTC)=[mixture actual measurement virulence coefficient (the ATI)/theoretical virulence coefficient (TTI) of mixture] * 100.
Wherein, co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80＜co-toxicity coefficient (CTC)＜120 shows as summation action.
The invention provides a kind of soybean field weeding composition and preparation thereof.This soybean field weeding composition is comprised of cloransulammethyl and fomesafen.By Toxicity Determination, weed killer herbicide co-toxicity coefficient provided by the invention shows as obvious synergistic effect all greater than 120; Especially when the proportioning of cloransulammethyl and fomesafen was 1 ︰ 10, co-toxicity coefficient was 227, the synergistic effect highly significant; By field control effectiveness test, weed killer herbicide integrated control effect provided by the invention has reached 86.5%～96.5%, and the integrated control effect of cloransulammethyl, fomesafen single dose only has respectively 63.6%, 58.8%.This shows that Herbicidal combinations provided by the invention and preparation synergistic effect thereof are remarkable, greatly reduced dosage and medication number of times, have the advantages such as safety, efficient, environmental protection, and delayed the generation of herbicide resistance.
Raw materials used medicine or auxiliary material all can be buied by market among the present invention.
Below in conjunction with embodiment, further set forth the present invention:
The preparation of embodiment 11% cloransulammethyl fomesafen microemulsion
Cloransulammethyl 0.1g, fomesafen 0.9g, agricultural newborn 0201B15g, No. 180 15g of solvent naphtha, n-butanol 10g, water 59g through abundant mixed dissolution, namely get 1% microemulsion.
The preparation of embodiment 26% cloransulammethyl fomesafen microemulsion
Cloransulammethyl 1g, fomesafen 5g, ethoxy castor oil 20g, No. 100 10g of solvent naphtha, ethanol 8g, water 56g through abundant mixed dissolution, namely get 6% microemulsion.
The preparation of embodiment 37% cloransulammethyl fomesafen microemulsion
Cloransulammethyl 1g, fomesafen 6g, farming breast No. 500 10g, agricultural emulsifier NO．600 10g, oxolane 10g, ethanol 8g, water 55g through abundant mixed dissolution, namely get 7% microemulsion.
The preparation of embodiment 415% cloransulammethyl fomesafen microemulsion
Cloransulammethyl 2g, fomesafen 13g, agricultural newborn 0201B20g, No. 200 12g of solvent naphtha, isopropyl alcohol 5g, water 48g through abundant mixed dissolution, namely get 15% microemulsion.
The preparation of embodiment 520% cloransulammethyl fomesafen microemulsion
Cloransulammethyl 2g, fomesafen 18g, Nongru-700 15g, epoxidized soybean oil 15g, n-amyl alcohol 5g, water 45g through abundant mixed dissolution, namely get 20% microemulsion.
The preparation of embodiment 620% cloransulammethyl Fluosulfonamide oxalether cream
Cloransulammethyl 2g, fomesafen 18g, farming breast No. 500 10g, agricultural emulsifier NO．600 10g, vegetable oil 60g through abundant mixed dissolution, namely get 20% missible oil.
The preparation of embodiment 722% cloransulammethyl Fluosulfonamide oxalether cream
Cloransulammethyl 2g, fomesafen 20g, farming breast No. 500 10g, agricultural emulsifier NO．600 10g, No. 180 58g of solvent naphtha through abundant mixed dissolution, namely get 22% missible oil.
The preparation of embodiment 824% cloransulammethyl Fluosulfonamide oxalether cream
Cloransulammethyl 3g, fomesafen 21g, agricultural newborn 0203B15g, lubricating oil 40g, aromatic solvent naphtha 21g through abundant mixed dissolution, namely get 24% missible oil.
The preparation of embodiment 940% cloransulammethyl Fluosulfonamide oxalether cream
Cloransulammethyl 5g, fomesafen 35g, agricultural newborn 220110g, Nongru-700 15g, paraffin oil 35g through abundant mixed dissolution, namely get 40% missible oil.
The preparation of embodiment 1046% cloransulammethyl Fluosulfonamide oxalether cream
Cloransulammethyl 3g, fomesafen 43g, agricultural newborn 0203B15g, No. 150 39g of solvent naphtha through abundant mixed dissolution, namely get 46% missible oil.
The preparation of embodiment 1160% cloransulammethyl Fluosulfonamide oxalether cream
Cloransulammethyl 4g, fomesafen 56g, agricultural newborn 0201B15g, vegetable oil 25g through abundant mixed dissolution, namely get 60% missible oil.
The preparation of embodiment 1280% cloransulammethyl Fluosulfonamide oxalether cream
Cloransulammethyl 6g, fomesafen 74g, farming breast No. 500 5g, Nongru-700 10g, lubricating oil 5g through abundant mixed dissolution, namely get 80% missible oil.
The preparation of embodiment 131% cloransulammethyl fomesafen suspending agent
Cloransulammethyl 0.1g, fomesafen 0.9g, Negel 8g, sodium lignin sulfonate 4g, sodium alginate 2g, water 85g through abundant mixed grinding, namely get 1% suspending agent.
The preparation of embodiment 1427% cloransulammethyl fomesafen suspending agent
Cloransulammethyl 3g, fomesafen 24g, sorbitan fatty acid ester APEO (T-60) 4g, Sodium Polyacrylate 7g, polyvinyl alcohol 1g, water 61g through abundant mixed grinding, namely get 27% suspending agent.
The preparation of embodiment 1536% cloransulammethyl fomesafen suspending agent
Cloransulammethyl 3g, fomesafen 33g, fat alcohol polyethylene ether (AEO-3) 3g, Sodium Polyacrylate 6g, xanthans 0.5g, water 54.5g through abundant mixed grinding, namely get 36% suspending agent.
The preparation of embodiment 1647% cloransulammethyl fomesafen suspending agent
Cloransulammethyl 3g, fomesafen 44g, fat alcohol polyethylene ether (AEO-3) 4g, Sodium Polyacrylate 7g, organobentonite 0.5g, water 41.5g through abundant mixed grinding, namely get 47% suspending agent.
The preparation of embodiment 1750% cloransulammethyl fomesafen suspending agent
Cloransulammethyl 3g, fomesafen 47g, pull open powder 3g, sodium methylene bis-naphthalene sulfonate 6g, starch 0.5g, water 40.5g, through abundant mixed grinding, namely get 50% suspending agent.
The preparation of embodiment 181% cloransulammethyl fomesafen wetting powder
Cloransulammethyl 0.1g, fomesafen 0.9g, Negel 8g, alkyl amine group taurate 10g, white carbon 81g through air-flow crushing, fully mixing, namely get 1% wetting powder.
The preparation of embodiment 193.9% cloransulammethyl fomesafen wetting powder
Cloransulammethyl 0.3g, fomesafen 3.6g, lauryl sodium sulfate 3g, sodium lignin sulfonate 7g, white carbon 86.1g through air-flow crushing, fully mixing, namely get 3.9% wetting powder.
The preparation of embodiment 2032% cloransulammethyl fomesafen wetting powder
Cloransulammethyl 2g, fomesafen 30g, neopelex 3g, carboxymethyl cellulose 6g, kaolin 59g through air-flow crushing, fully mixing, namely get 32% wetting powder.
The preparation of embodiment 2154% cloransulammethyl fomesafen wetting powder
Cloransulammethyl 4g, fomesafen 50g, lauryl sodium sulfate 4g, calcium lignosulfonate 7g, diatomite 35g through air-flow crushing, fully mixing, namely get 54% wetting powder.
The preparation of embodiment 2290% cloransulammethyl fomesafen wetting powder
Cloransulammethyl 10g, fomesafen 80g, calcium dodecyl benzene sulfonate 6g, sodium methylene bis-naphthalene sulfonate 2g, attapulgite 2g through air-flow crushing, fully mixing, namely get 90% wetting powder.The preparation of embodiment 231% cloransulammethyl fomesafen water dispersible granules
Cloransulammethyl 0.1g, fomesafen 0.9g, pull open powder 4g, sodium phosphate trimer 8g, PEG0.5g, xanthans 0.5g, urea 86g, through air-flow crushing, fully mix, mediate granulation, drying and screening, namely get 1% water dispersible granules.
The preparation of embodiment 2419% cloransulammethyl fomesafen water dispersible granules
Cloransulammethyl 1g, fomesafen 18g, pull open powder 3g, sodium lignin sulfonate 7g, sodium carboxymethylcellulose 1g, sucrose 1g, urea 69g, through air-flow crushing, fully mix, mediate granulation, drying and screening, namely get 19% water dispersible granules.
The preparation of embodiment 2538% cloransulammethyl fomesafen water dispersible granules
Cloransulammethyl 6g, fomesafen 32g, moistening penetrant t 2g, carboxymethyl cellulose 5g, urea 1g, dextrin 2g, precipitated calcium carbonate 52g through air-flow crushing, fully mixing, kneading granulation, drying and screening, namely get 38% water dispersible granules.
The preparation of embodiment 2640% cloransulammethyl fomesafen water dispersible granules
Cloransulammethyl 2g, fomesafen 38g, pull open powder 10g, calcium lignosulfonate 10g, SF-041g, sucrose 1g, urea 38g, through air-flow crushing, fully mix, mediate granulation, drying and screening, namely get 40% water dispersible granules.
The preparation of embodiment 2784% cloransulammethyl fomesafen water dispersible granules
Cloransulammethyl 4g, fomesafen 80g, lauryl sodium sulfate 3g, sodium lignin sulfonate 8g, ammonium sulfate 3g, starch 1g, precipitated calcium carbonate 1g through air-flow crushing, fully mixing, kneading granulation, drying and screening, namely get 84% water dispersible granules.
The preparation of embodiment 2890% cloransulammethyl fomesafen water dispersible granules
Cloransulammethyl 10g, fomesafen 80g, moistening penetrant t 2g, alkylnaphthalene sulfonate condensation polymer 4g, silica gel 1g, Sodium Polyacrylate 0.1g, ammonium sulfate 2.9g, through air-flow crushing, fully mixing, kneading granulation, drying and screening, namely get 90% water dispersible granules.
The test of embodiment 29 Toxicity Determination
Test method: will test 4/5 place that soil quantitatively is filled to the basin alms bowl, make the soil complete wetting to saturated mode from the top pouring in water, evenly be sowed at soil surface with pretreated for examination corn sow thistle seed, earthing 0.5cm, after planting move into the greenhouse cellar culture, the moisturizing of infiltrating irrigation mode is to saturated mode bottom the basin alms bowl; The weeds laggard seedling in the ranks of emerging is decided strain, guarantees the consistent in density of weeds; Grew to for 2～3 leaf phases to weeds and carry out the dispenser processing, weed killer herbicide is selected commercially available cloransulammethyl, commercially available fomesafen and embodiment 2,14,7,19,20,24,27 weed killer herbicides that provide, commercially available cloransulammethyl and commercially available fomesafen, embodiment 2,14,7,19,20,24, active ingredient cloransulammethyl in 27 weed killer herbicides that provide and the proportioning of fomesafen are respectively 1 ︰ 5,1 ︰ 8,1 ︰ 10,1 ︰ 12,1 ︰ 15,1 ︰ 18,1 ︰ 20, weed seed per 20 as a processing, each is processed 4 times and repeats, calculate preventive effect, then calculate concentration EC50(95% confidence interval in the inhibition with method of least squares), calculate co-toxicity coefficient (CTC) with the abundant method of Sun Yun again:
Actual measurement toxicity index (ATI)=(standard medicament EC50/ reagent agent EC50) * 100
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B)
Co-toxicity coefficient (CTC)=[mixture actual measurement virulence coefficient (the ATI)/theoretical virulence coefficient (TTI) of mixture] * 100
Co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80＜co-toxicity coefficient (CTC)＜120 shows as summation action.
Table 1 weed killer herbicide provided by the invention is measured the synergy of corn sow thistle
Measurement result by table 1 shows, when cloransulammethyl and fomesafen proportioning were between 1 ︰ 5～20, co-toxicity coefficient had obvious synergistic effect greater than 120; When cloransulammethyl and fomesafen proportioning were between 1 ︰ 8～15, co-toxicity coefficient had more significant synergistic effect greater than 177; When cloransulammethyl and fomesafen proportioning during at 1 ︰ 10, co-toxicity coefficient is greater than 220, and synergistic effect is the most remarkable.
Embodiment 30 field control effectiveness tests
The product that makes with the embodiment of the invention 7 and cloransulammethyl single dose and fomesafen single dose are carried out the field efficacy comparative trial.The processing of spraying of 22% the missible oil of using respectively in 1～3 leaf phase of soybean that 30% commercially available cloransulammethyl water dispersible granules (WDG), commercially available 15% Fluosulfonamide oxalether cream (EC) and the embodiment of the invention 7 make, each processes effective ingredient consumption is 70g/hm
230d adds up respectively the preventive effect to dayflower, corn sow thistle, three-coloured amaranth behind the medicine, the results are shown in Table 2.
Table 2 weed killer herbicide of the present invention and single dose weed killer herbicide preventive effect contrast table
Result of the test by table 2 shows, 22% the missible oil that the embodiment of the invention 7 makes is compared with single dose the control efficiency of weeds has obvious synergistic effect, has greatly reduced dosage and medication number of times.
Get weed killer herbicide that embodiment 1～6,8～27 makes and cloransulammethyl single dose and fomesafen single dose and carry out the field efficacy comparative trial, the weed killer herbicide that embodiment 1～6,8～27 makes is close to the control efficiency of weeds to the missible oil that control efficiency and the embodiment 7 of weeds makes, have obvious synergistic effect, greatly reduced dosage and medication number of times.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a Herbicidal combinations is characterized in that, is comprised of cloransulammethyl and fomesafen.
2. Herbicidal combinations according to claim 1 is characterized in that, the weight ratio of described cloransulammethyl and described fomesafen is 1 ︰ 5～20.
3. Herbicidal combinations according to claim 1 is characterized in that, the weight ratio of described cloransulammethyl and described fomesafen is 1 ︰ 8～15.
4. Herbicidal combinations according to claim 1 is characterized in that, the weight ratio of described cloransulammethyl and described fomesafen is 1 ︰ 10.
5. a weed killer herbicide is characterized in that, by forming such as acceptable auxiliary material on each described Herbicidal combinations of claim 1 to 4 and the Pesticide Science.
6. weed killer herbicide according to claim 5 is characterized in that, the formulation of described weed killer herbicide is microemulsion, missible oil, suspending agent, wetting powder or water dispersible granules.
7. weed killer herbicide according to claim 6 is characterized in that, in described microemulsion, the weight percentage of described Herbicidal combinations is 1%～20%.
8. weed killer herbicide according to claim 6 is characterized in that, in described missible oil, the weight percentage of described Herbicidal combinations is 20%～80%.
9. weed killer herbicide according to claim 6 is characterized in that, in described suspending agent, the weight percentage of described Herbicidal combinations is 1%～50%.
10. weed killer herbicide according to claim 6 is characterized in that, in described wetting powder or water dispersible granules, the weight percentage of described Herbicidal combinations is 1%～90%.
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| CN103155922A (en) * | 2013-04-03 | 2013-06-19 | 四川农业大学 | Senecio prevention and control combination and preparation as well as application thereof |
| CN104304273A (en) * | 2014-09-25 | 2015-01-28 | 南京华洲药业有限公司 | Mixed herbicide containing cloransulam-methyl and metolachlor and preparation method thereof |
| CN106719731A (en) * | 2016-12-19 | 2017-05-31 | 安徽丰乐农化有限责任公司 | A kind of Soybean Field postemergence weed control composition of chloro-ester sulphur grass amine |
| CN110024799A (en) * | 2019-04-28 | 2019-07-19 | 江苏省激素研究所股份有限公司 | Herbicidal composition |
| CN111972405A (en) * | 2020-07-27 | 2020-11-24 | 南京太化化工有限公司 | Auxiliary agent for suspending agent and isoxaflutole suspending agent |
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| CN106719731A (en) * | 2016-12-19 | 2017-05-31 | 安徽丰乐农化有限责任公司 | A kind of Soybean Field postemergence weed control composition of chloro-ester sulphur grass amine |
| CN110024799A (en) * | 2019-04-28 | 2019-07-19 | 江苏省激素研究所股份有限公司 | Herbicidal composition |
| CN111972405A (en) * | 2020-07-27 | 2020-11-24 | 南京太化化工有限公司 | Auxiliary agent for suspending agent and isoxaflutole suspending agent |
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