CN103262842B - Weeding composition and preparation thereof - Google Patents
Weeding composition and preparation thereof Download PDFInfo
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- CN103262842B CN103262842B CN201310207417.0A CN201310207417A CN103262842B CN 103262842 B CN103262842 B CN 103262842B CN 201310207417 A CN201310207417 A CN 201310207417A CN 103262842 B CN103262842 B CN 103262842B
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Abstract
The invention relates to the field of pesticide preparations, and discloses a weeding composition and a preparation thereof. The weeding composition comprises flumiclorac-pentyl and a diphenyl ether compound, wherein acifluorfen, fomesafen, fluoroglycofen-ethyl, oxyfluorfen, fomesafen, lactofen, bentazone, aclonifen, bifenox, fenoxaprop-p-ethyl or nitrofen is used as the diphenyl ether compound. According to the weeding composition and the preparation thereof, the flumiclorac-pentyl and the diphenyl ether compound are compounded as an active ingredient, have complementary advantages and have a cooperative effect; the production of weed herbicide resistance is delayed; meanwhile, the weeding composition has a synergistic effect on weeds in a soybean field, has the advantages of safety, high efficiency and environment-friendliness and can be widely applied to prevention and control of soybean weed pests; and the dosage and the dosing frequency can be greatly reduced.
Description
Technical field
The present invention relates to field of pesticide preparation, relate to a kind of Herbicidal combinations and preparation thereof specifically.
Background technology
Soybean is also known as soya bean, green soya bean, black soya bean, and being the main oil crop of China, is again important non-staple food raw material, in the existing history in 5000 of the plantation of China.Soybean is the most being rich in nutrition in leguminous plant and is easy to the food of digestion, and being rich in protein, is important food and feed resource.
The every Annual planting area of China soybean about 1,200 ten thousand hectares, and along with the adjustment of the structure of agricultural production, the trend that cultivated area expands in addition year by year.Soybean Field crop smothering area accounts for more than 53.4% of total cultivated area, and soybean is lost in 5%-20% every year thus, and even more than 30%.The main weeds of Soybean Field has: annual gramineous weed is as barnyard grass, green foxtail, setaria glauca, lady's-grass, wild oat, eleusine indica etc.; Annual broadleaf weed has Siberian cocklebur, amaranth, black nightshade, acalypha copperleaf, elscholtiza, water sour jujube pin, wolf tail grass, willow leaf thorn knotweed, pale persicaria, salsola collina, lamb's-quarters, dodder, dayflower, kitchen garden, clearvers, chickweed, piemarker etc.; Perennial grass has meadow pine, corn sow thistle, setose thistle, field thistle, Bermuda grass, reed, the rhizome of nutgrass flatsedge etc.Along with the development of agricultural cience and farming techniques, applying of chemical herbicide becomes saving of labor, saves time, one of cost-effective strong well stimulation.
Conventional soybean field herbicide has imazethapyr, fomesafen, chlorimuronethyl, different grass pine, imazamox, Flumetsulam, piperazine humulone etc. at present.But the problem that these weed killer herbicide single dose ubiquity drug effects are not high, and agricultural chemicals single dose be used alone for a long time easily make weeds produce resistance.For this reason, need to develop a kind of novel weed killer herbicide for Soybean Field weeding, to improve drug effect and the generation avoiding herbicide resistance.
Summary of the invention
In view of this, the object of the invention is to provide a kind of Herbicidal combinations and preparation thereof, Herbicidal combinations of the present invention can be applied in the control of Soybean Field grassy weed and broad leaved weed, and have synergistic effect.
For realizing object of the present invention, the present invention adopts following technical scheme:
A kind of Herbicidal combinations, be made up of Flumiclorac pentyl and diphenyl ether compound, described Flumiclorac pentyl and diphenyl ether compound weight ratio are 1:0.5-10, and described diphenyl ether compound is acifluorfen, fomesafen, second Acifluorfen, Oxyfluorfen, fomesafen, lactofen, Bentazon, aclonifen, bifenox, fenoxapropPethyl or nitrofen.
Flumiclorac pentyl, English name flumiclorac-pentyl, also known as flumicloracpentryl, wealthy careless amine, commodity fame and gain is received, and chemical formula is as follows:
Flumiclorac pentyl belongs to acid imide weed killer herbicide, for proporphyrinogen oxidase inhibitor, cause protoporphyrin to accumulate after being absorbed by the young shoot of weeds and blade, strengthen Cell membrane lipids peroxidating, cause membrane structure and cell function irreversible lesion, weeds are wilting, downright bad and withered rapidly.Flumiclorac pentyl is mainly used in preventing and kill off broad leaved weed, as Amaranthus retroflexus, recessed head amaranth, piemarker, black nightshade, Siberian cocklebur, knotweed, summer cypress, datura etc.But it is to grassy weed poor efficiency, therefore, the harm that Flumiclorac pentyl effectively cannot control all weeds in field is used alone.
Diphenyl ether compound absorbs enter in body mainly through plant embryos bud scale, mesocotyl, and action target is proporphyrinogen oxidase, suppresses chlorophyllous synthesis, destroys the cell membrane of sensitive plant.The selectivity of this compounds is relevant with Assimilation and conductivity, accretion rate and the conjugated degree in plant corpus.Diphenyl ether compound belongs to contact killing type weed killer herbicide, and selectivity shows the biochemical selection of reason of making a living and two aspects are selected in position.The plant that is injured produces downright bad foxiness, larger to children's merismatic toxic action in age.The kind used at present is all that ortho position and contraposition replace, and all belongs to the weed killer herbicide of photoactivation.
As preferably, described diphenyl ether compound is fluoroglycofen-ethyl, and described Flumiclorac pentyl and fluoroglycofen-ethyl weight ratio are 1:0.5-5.
As preferably, described diphenyl ether compound is lactofen, and described Flumiclorac pentyl and lactofen weight ratio are 1:1-5.
As preferably, described diphenyl ether compound is fomesafen, and described Flumiclorac pentyl and fomesafen weight ratio are 1:2-10.
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 typically 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, a kind of material disturbs the effect of another kind of material, or the effect of interfering with an opponent each other, makes the phenomenon that general effect declines.
The present invention is according to Sun Yunpei (Sun Y-P) method, calculate the mixed effect that co-toxicity coefficient evaluates fluorine Flumiclorac pentyl and fluoroglycofen-ethyl, Flumiclorac pentyl and lactofen and Flumiclorac pentyl and fomesafen respectively, result is presented at co-toxicity coefficient when Flumiclorac pentyl and diphenyl ether compound weight ratio are 1:0.5-10 and is all greater than 120, shows that the used in combination of the two has notable synergistic effect.
Therefore, the invention provides the application of described Herbicidal combinations in preparation control soybean grassy weed and broadleaf weed herbicide.
Herbicidal combinations of the present invention can be made into multiple formulation of herbicide, is the Herbicidal combinations of the present invention of 1%-90% and pesticidal preparations can accept auxiliary material form by percentage composition.Auxiliary material of the present invention comprises the components such as wetting agent, dispersant, disintegrant, adhesive, thickener, emulsifier, solvent, filler and water.
As preferably, described weed killer herbicide is missible oil, microemulsion, oil-suspending agent, wetting powder or water dispersible granules.
Preferably, in microemulsion or oil-suspending agent, the weight percentage of Herbicidal combinations is 5%-25%;
Preferably, in missible oil, the weight percentage of Herbicidal combinations is 25%-35%;
Preferably, in wetting powder, the weight percentage of Herbicidal combinations is 35%-55%;
Preferably, in water dispersible granules, the weight percentage of Herbicidal combinations is 70%-85%.
Auxiliary material of the present invention comprises the components such as wetting agent, dispersant, disintegrant, adhesive, thickener, emulsifier, solvent, filler and water.Wherein, as preferably, wetting agent of the present invention is selected from alkyl sulfate, alkylbenzenesulfonate, alkylsulfonate, alkylnaphthalene sulfonate, pulls open powder, moistening penetrant t, sorbitan fatty acid ester APEO, alkyl naphthalene formaldehyde condensation product.
As preferably, described dispersant can be selected from lignosulfonates, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonate, alkyl amine group taurate, polycarboxylate, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products, carboxymethyl cellulose, sodium phosphate trimer, alkylnaphthalene sulfonate condensation polymer.
As preferably, disintegrant of the present invention is selected from urea, sodium carboxymethylcellulose, ammonium sulfate, mineral salt, silica gel, PEG, SF-04.
As preferably, described adhesive is selected from sucrose, soluble starch, Sodium Polyacrylate, dextrin, xanthans, organobentonite.
As preferably, described thickener is selected from xanthans, gum Arabic, methylcellulose, carboxymethyl cellulose, hydroxyethylcellulose, hydroxypropyl cellulose, PAA, sodium alginate, polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide, Sodium Polyacrylate.
As preferably, described filler is selected from kaolin, bentonite, potter's clay, diatomite, white carbon, precipitated calcium carbonate, attapulgite.
As preferably, described emulsifier be agriculture breast 500, agriculture breast 600, Nongru-700, NP series, 0201B, 0203B, 2201, peaceful No. 31, breast, peaceful No. 33, breast, peaceful No. 37, breast, 0202,0202C, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy ether, polyoxyethylene aliphatic alcohol ether, ethoxy castor oil, PMA, fatty acid polyethylene glycol ester, one or more in trilaurin APEO.
As preferably, described solvent is one or more in aromatic solvent naphtha, tributyl phosphate, tetrahydrofurfuryl alcohol, oxolane, vegetable oil, paraffin oil, lubricating oil or solvent naphtha No. 100, No. 150, No. 180, No. 200.
As preferably, described cosolvent is ethanol, isopropyl alcohol, n-butanol, n-amyl alcohol.
Weed killer herbicide field control effectiveness test result display of the present invention, under singly using the prerequisite of dose lower than two, significantly improves preventive effect.As can be seen here, soybean field weeding composition provided by the invention and preparation thereof greatly reduce dosage and times for spraying, have the advantages such as safety, efficient, environmental protection, and have delayed the generation of herbicide resistance.
From above technical scheme, Herbicidal combinations of the present invention and preparation thereof using Flumiclorac pentyl and diphenyl ether compound composite as active ingredient, the two is had complementary advantages, synergy, delay the generation of herbicide resistance, to soybean weeds, there is synergistic effect simultaneously, greatly reduce dosage and times for spraying, there is the advantages such as safety, efficient, environmental protection, can be widely used in the control of soybean crop smothering.
Embodiment
The embodiment of the invention discloses a kind of Herbicidal combinations and preparation thereof.Those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Product of the present invention and method are described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope product as herein described is changed or suitably change with combination, realize and apply the technology of the present invention.
The present invention is set forth further below in conjunction with embodiment.
Embodiment 1:20% Flumiclorac pentyl fluoroglycofen-ethyl missible oil
Flumiclorac pentyl 10g, fluoroglycofen-ethyl 10g, agriculture breast No. 500 15g, agricultural emulsifier NO.600 10g, solvent naphtha No. 100 55g, through abundant mixed dissolution, namely obtain 20% Flumiclorac pentyl fluoroglycofen-ethyl missible oil.
Embodiment 2:15% Flumiclorac pentyl lactofen missible oil
Flumiclorac pentyl 5g, lactofen 10g, agriculture breast 0201B20g, solvent naphtha No. 150 65g, through abundant mixed dissolution, namely obtain 15% Flumiclorac pentyl lactofen missible oil.
Embodiment 3:35% Flumiclorac pentyl Fluosulfonamide oxalether cream
Flumiclorac pentyl 5g, fomesafen 30g, agriculture breast 0203B20g, solvent naphtha No. 180 45g, through abundant mixed dissolution, namely obtain 35% Flumiclorac pentyl Fluosulfonamide oxalether cream.
Embodiment 4:10% Flumiclorac pentyl fluoroglycofen-ethyl microemulsion
Flumiclorac pentyl 2g, fluoroglycofen-ethyl 8g, peaceful breast No. 33 20g, ethanol 5g, water 65g, through abundant mixed dissolution, namely obtain 10% Flumiclorac pentyl fluoroglycofen-ethyl microemulsion.
Embodiment 5:20% Flumiclorac pentyl lactofen microemulsion
Flumiclorac pentyl 10g, lactofen 10g, peaceful breast No. 37 30g, n-butanol 10g, water 40g, through abundant mixed dissolution, namely obtain 20% Flumiclorac pentyl lactofen microemulsion.
Embodiment 6:6% Flumiclorac pentyl fomesafen microemulsion
Flumiclorac pentyl 2g, fomesafen 4g, 0202C15g, isopropyl alcohol 3g, water 76g, through abundant mixed dissolution, namely obtain 6% Flumiclorac pentyl fomesafen microemulsion.
Embodiment 7:15% Flumiclorac pentyl fluoroglycofen-ethyl oil-suspending agent
Flumiclorac pentyl 10g, fluoroglycofen-ethyl 5g, neopelex 5g, sodium lignin sulfonate 8g, organobentonite 1g, soybean oil 71g, through fully stirring, grinding, namely obtain 15% Flumiclorac pentyl fluoroglycofen-ethyl oil-suspending agent.
Embodiment 8:5% Flumiclorac pentyl lactofen oil-suspending agent
Flumiclorac pentyl 2g, lactofen 3g, neopelex 5g, sodium lignin sulfonate 8g, organobentonite 1g, soybean oil 81g, through fully stirring, grinding, namely obtain 5% Flumiclorac pentyl lactofen oil-suspending agent.
Embodiment 9:25% Flumiclorac pentyl fomesafen oil-suspending agent
Flumiclorac pentyl 5g, fomesafen 20g, calcium dodecyl benzene sulfonate 3g, sodium lignin sulfonate 6g, organobentonite 2g, water 8g, soybean oil 56g, through fully stirring, grinding, namely obtain 25% Flumiclorac pentyl fomesafen oil-suspending agent.
Embodiment 10:45% Flumiclorac pentyl fluoroglycofen-ethyl wetting powder
Flumiclorac pentyl 15g, fluoroglycofen-ethyl 30g, moistening penetrating agent JFC 4g, calcium lignosulfonate 6g, kaolin 45g, through air-flow crushing, fully mix, and namely obtains 45% Flumiclorac pentyl fluoroglycofen-ethyl wetting powder.
Embodiment 11:36% Flumiclorac pentyl lactofen wetting powder
Flumiclorac pentyl 6g, lactofen 30g, fast T5g, sodium methylene bis-naphthalene sulfonate 7g, precipitated calcium carbonate 52g, through air-flow crushing, fully mix, namely obtain 36% Flumiclorac pentyl lactofen wetting powder.
Embodiment 12:55% Flumiclorac pentyl fomesafen wetting powder
Flumiclorac pentyl 5g, fomesafen 50g, K124g, carboxymethyl cellulose 5g, white carbon 36g, through air-flow crushing, fully mix, 55% Flumiclorac pentyl fomesafen wetting powder.
Embodiment 13:80% Flumiclorac pentyl fluoroglycofen-ethyl water dispersible granules
Flumiclorac pentyl 5g, fluoroglycofen-ethyl 75g, lauryl sodium sulfate 3g, sodium phosphate trimer 7g, urea 1g, diatomite 9g, through air-flow crushing, fully mixing, mediate granulation, drying and screening, namely obtain 80% Flumiclorac pentyl fluoroglycofen-ethyl water dispersible granules.
Embodiment 14:85% Flumiclorac pentyl lactofen water dispersible granules
Flumiclorac pentyl 25g, lactofen 60g, Nekal BX 4g, sodium phosphate trimer 8g, ammonium sulfate 1g, kaolin 2g, through air-flow crushing, fully mixing, mediate granulation, drying and screening, namely obtain 85% Flumiclorac pentyl lactofen water dispersible granules.
Embodiment 15:72% Flumiclorac pentyl fomesafen water dispersible granules
Flumiclorac pentyl 12g, fomesafen 60g, fast T3g, carboxymethyl cellulose 6g, PEG4g, attapulgite 15g, through air-flow crushing, fully mixing, mediate granulation, drying and screening, namely obtain 72% Flumiclorac pentyl fomesafen water dispersible granules.
Embodiment 16: Toxicity Determination is tested
In order to understand Flumiclorac pentyl and diphenyl ether compound mixture further to the synergy of weeds, carry out the mixture of following test to Flumiclorac pentyl and diphenyl ether herbicide and carry out recipe determination, for fluoroglycofen-ethyl, lactofen, fomesafen, recipe determination.
Test method: 4/5 place test soil being quantitatively filled to basin alms bowl, make soil complete wetting to saturated mode from top pouring in water, evenly soil surface is sowed at for examination weed seed (the common grassy weed of Soybean Field and broad leaved weed) by pretreated, earthing 0.5cm, after planting move into greenhouse cellar culture, with infiltrating irrigation mode moisturizing bottom basin alms bowl to saturated mode; Weeds laggard seedling in the ranks of emerging determines strain, ensures the consistent in density of weeds; Grow to the 2-3 leaf phase to weeds and carry out dispenser process, each process repeats for 4 times, calculates preventive effect, then calculates concentration EC in suppression by method of least squares
50(95% confidence interval), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun:
Actual measurement toxicity index (ATI)=(standard agent EC50/ reagent agent EC50) × 100
Theoretical toxicity index (the TTI)=percentage composition of A (in the toxicity index × mixture of the A)+percentage composition of B (in the toxicity index × mixture of B)
Co-toxicity coefficient (CTC)=[theoretical virulence coefficient (TTI) of mixture actual measurement virulence coefficient (ATI)/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.
Testing result is in table 1, table 2 and table 3.
Table 1 Flumiclorac pentyl and the synergy of fluoroglycofen-ethyl to grassy weed and broad leaved weed measure
Table 2 Flumiclorac pentyl and the synergy of lactofen to grassy weed and broad leaved weed measure
Table 3 Flumiclorac pentyl and the synergy of fomesafen to grassy weed and broad leaved weed measure
From the measurement result of table 1, table 2 and table 3, when Flumiclorac pentyl and fluoroglycofen-ethyl weight ratio are 1:0.5-5, Flumiclorac pentyl and lactofen weight ratio are 1:1-5, when Flumiclorac pentyl and fomesafen weight ratio are 1:2-10, co-toxicity coefficient is all greater than 120, has obvious synergistic effect.
Embodiment 17: field control effectiveness test
In the soybean 1-3 leaf phase respectively with the obtained product of each single dose 100g/L Flumiclorac pentyl missible oil, 20% fluoroglycofen-ethyl missible oil, 240g/L lactofen, 20% Fluosulfonamide oxalether cream and the embodiment of the present invention 7, embodiment 8, embodiment 9 to the process of soybean stem foliar spray mist, after medicine, 20d statistics is to the preventive effect of field grassy weed and broad leaved weed, the results are shown in Table 4, table 5 and table 6.
Table 4 weed killer herbicide of the present invention and single dose weed killer herbicide preventive effect contrast (%)
Table 5 weed killer herbicide of the present invention and single dose weed killer herbicide preventive effect contrast (%)
Table 6 weed killer herbicide of the present invention and single dose weed killer herbicide preventive effect contrast (%)
From the field control effectiveness test of table 4, table 5 and table 6, under weed killer herbicide effective ingredient consumption of the present invention (i.e. Herbicidal combinations consumption of the present invention) is less than the prerequisite of single amount of application, to grassy weed to significantly improve with the preventive effect of broad leaved weed and integrated control effect, this is consistent with Toxicity Determination result of the test, has obvious synergistic effect.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.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 (7)
1. a Herbicidal combinations, is characterized in that, is made up of Flumiclorac pentyl and fluoroglycofen-ethyl, and described Flumiclorac pentyl and fluoroglycofen-ethyl weight ratio are 1:0.5-5.
2. the application of Herbicidal combinations described in claim 1 in preparation control soybean grassy weed and broadleaf weed herbicide.
3. a weed killer herbicide, is characterized in that, by weight percentage be 1%-90% claim 1 described in Herbicidal combinations and pesticidal preparations can accept auxiliary material form.
4. weed killer herbicide according to claim 3, it is characterized in that, described weed killer herbicide is missible oil, microemulsion, oil-suspending agent, wetting powder or water dispersible granules.
5. weed killer herbicide according to claim 4, is characterized in that, in described microemulsion or oil-suspending agent, the weight percentage of Herbicidal combinations is 5%-25%.
6. weed killer herbicide according to claim 4, it is characterized in that, in described missible oil, the weight percentage of Herbicidal combinations is 25%-35%.
7. weed killer herbicide according to claim 4, it is characterized in that, in described wetting powder, the weight percentage of Herbicidal combinations is 35%-55%.
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| CN104285977B (en) * | 2014-10-20 | 2016-06-15 | 柳州市天姿园艺有限公司 | A kind of herbicidal methods |
| CN104886062A (en) * | 2015-03-28 | 2015-09-09 | 济南天邦化工有限公司 | Paraquat-fluoroglycofen oil suspension and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196173A (en) * | 1997-04-16 | 1998-10-21 | 化学工业沈阳化工研究院 | Herbicide containing fluoromid and its application |
| CN101946782A (en) * | 2010-09-25 | 2011-01-19 | 安徽丰乐农化有限责任公司 | Compound herbicide for soybean seedlings |
| CN102239843A (en) * | 2011-07-07 | 2011-11-16 | 永农生物科学有限公司 | Composition of fluroxypyr or ester of fluroxypyr and fluoroglycofen-ethyl and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196173A (en) * | 1997-04-16 | 1998-10-21 | 化学工业沈阳化工研究院 | Herbicide containing fluoromid and its application |
| CN101946782A (en) * | 2010-09-25 | 2011-01-19 | 安徽丰乐农化有限责任公司 | Compound herbicide for soybean seedlings |
| CN102239843A (en) * | 2011-07-07 | 2011-11-16 | 永农生物科学有限公司 | Composition of fluroxypyr or ester of fluroxypyr and fluoroglycofen-ethyl and preparation method thereof |
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