CN101803604A - Weeding composition - Google Patents

Weeding composition Download PDF

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Publication number
CN101803604A
CN101803604A CN 201010153451 CN201010153451A CN101803604A CN 101803604 A CN101803604 A CN 101803604A CN 201010153451 CN201010153451 CN 201010153451 CN 201010153451 A CN201010153451 A CN 201010153451A CN 101803604 A CN101803604 A CN 101803604A
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Prior art keywords
bentazone
fluroxypyr
agent
water
active ingredient
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CN 201010153451
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Chinese (zh)
Inventor
邱丰
黄洪武
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Lier Chemical Co Ltd
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Lier Chemical Co Ltd
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Abstract

The invention relates to a weeding composition which comprises fluroxypyr, bentazone and acceptable auxiliary components in pesticides, wherein the fluroxypyr and the bentazone are used as active components, and the weight percent of the fluroxypyr to the bentazone is 4:1-1:48. By combining the two active components, the weeding composition can have synergy, can prevent and remove various kinds of broad leaved weeds and sedge weeds, obviously improves the weeding effect, and reduces the production cost.

Description

Herbicidal combinations
Technical field
The present invention relates to a kind of herbicidal composition, particularly can be used for the herbicidal composition of paddy field, wheat paddock, corn field, sugarcane field, orchard and uncultivated area.
Background technology
In the cultivation process such as paddy field, wheat paddock, corn field, the extensive use of weed killer herbicide expands cultivated area to controlling weeds harm effectively, improves output, improves product quality, saves recruitment, regulates the labour and plays an important role.At present the weed killer herbicide in these crop farmlands has all been developed a lot of kinds, but because its careless extremely spectrum is single, or the similar approximate weed killer herbicide of long-term single use, the succession and the weeds pesticide resistance that make weed community distribute strengthen day by day.
Fluroxypyr (fluroxypyr) is a pyridine fluoroacetic acid class weed killer herbicide, and structure is a cauline leaf inorganic agent behind a kind of selectivity, internal-suction type, the seedling suc as formula shown in (I), is absorbed by the weeds cauline leaf.Absorbed by weeds very soon after the dispenser, the reaction of typical hormone herbicide appears in susceptible weeds, and plant deformity, distortion are finally withered.Can effectively prevent and kill off multiple annual, perennial broad leaved weed, be applicable to that wheat, barley, corn, paddy rice (rice seedling bed, live field, seedling throwing field, transplant field, furrow side), orchard etc. prevent and kill off multiple broad leaved weed; As Monochoria vaginalis, water peanut, angustifolia arrowhead herb, clearvers, volume stem knotweed, kitchen garden, black nightshade, field bindweed, knotweed, amaranth etc., invalid to grassy weed.
Bentazone (bentazon) is an optionally herbicide after seedling of contact killing type tool, structure is suc as formula shown in (II), be used for cauline leaf processing in seedling stage, work by the blade contact, be a kind of broad spectrum weeding agent, can be used for various crop Tanakas such as paddy rice, wheat, soybean, corn, pea and prevent and kill off broad leaved weed and sedge weed.Dry land is used, and is transmitted to by the blade face infiltration earlier and suppresses photosynthesis in the chloroplast.The paddy field is used and can be absorbed by root again by the blade face infiltration, is transmitted to cauline leaf, hinders weeds photosynthesis and water metabolism strongly, causes nutrition hunger, makes physiological function lack of proper care and cause death.
Summary of the invention
At above-mentioned situation, the present invention will provide a kind of can prevent and kill off broad leaved weed, can prevent and kill off the highly effective and safe weeding agricultural chemicals of sedge weed again, solves the problem that present herbicide effects reduces gradually.
The present invention is to provide a kind of Herbicidal combinations, be to be active ingredient with fluroxypyr and bentazone, form jointly with acceptable auxiliary element in the agricultural chemicals, the percentage by weight of fluroxypyr and bentazone is 4: 1~1: 48, better ratio is 2: 1~1: 24, and preferred ratio is 1: 3~1: 12.
According to different use needs or applying environment/conditions, the Herbicidal combinations of the above-mentioned form of the present invention can be prepared processing mode by present routine and be prepared into any common formulations such as operational wetting powder, water dispersible granules, suspending agent, aqueous emulsion or suspension emulsion by acceptable auxiliary element in said these two kinds of active ingredients and the agricultural chemicals.Acceptable auxiliary element in the said agricultural chemicals, can comprise at present in the agricultural chemicals relevant with said active ingredient existing use can not bring into play inert filler all kinds of commonly used and/or the solvent composition that adverse effect is arranged with its generation chemical action or to its drug effect, conventional surfactant composition with effects such as emulsification and/or wetting and/or dispersions, and comprise as anti-caking agent, antifreezing agent, defoamer, bleeding agent, cosolvent, stabilizing agent, tackifier, adding ingredient commonly used in the corresponding agricultural chemicals such as preservative, and can do corresponding selection according to the difference of prepared dosage form.For example:
Wetting powder (WP) promptly can homodisperse solid powder preparation in water.During preparation; except in the usual way with above-mentioned active drug composition with as white carbon; precipitated calcium carbonate; potter's clay; diatomite; outside thinner that attapulgite etc. are commonly used or inert substance mix; can also add other auxiliary element by the usual manner of agricultural chemicals preparation; as alkylbenzenesulfonate (DBS-Na) commonly used; alkylnaphthalene sulfonate (drawing back powder); alkylphenol-polyethenoxy base ether sulfate; alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate; aliphatic alcohol sulfate; fatty alcohol ethylene oxide adduct sulfonate; fatty amine salt; the alkyl ammonium bromide; cationic alkyl amide taurate; aliphatic alcohol polyethenoxy base ether (JFC) naphthalene sulfonate; naphthalene or alkyl naphthalene formaldehyde condensate sulfonates (NO; NNO or MF etc.); lignin and derivative sulfonate (M-9 thereof; POLYFON etc.); the polyoxyethylene poly-oxygen propylene aether block copolymer; polycarboxylate; alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate (SOPA); polyvinyl alcohol (PVA); carboxymethyl cellulose (CMC) and as penetrating agent JFC; azone; thiophene ketone; among the penetrant t one or more and stabilizing agent commonly used; foam inhibitor; the auxiliary component that anticaking agent etc. are complementary.
Suspending agent (SC), the dispersion in water or oil for water insoluble solids agricultural chemicals or immiscible liquids agricultural chemicals.During preparation, be dispersion medium, former medicine, auxiliary agent (wetting dispersing agent, tackifier, stabilizing agent, PH adjust agent and defoamer etc.) are made through wet method ultramicro grinding (as grinding) with water.Dispersion moisture agent generally can use naphthalene or alkyl naphthalene formaldehyde condensate sulfonates (TESPERSE 2425, EFW, UK), lignin and derivative sulfonate thereof, phosphate polyethers, alkylphenol-polyethenoxy base ether sulfonate, polyoxyethylene polyoxypropylene base ether block copolymers, acrylic acid minor matters copolymer (TESPERSE 2700), one or more in alkylphenol-polyethenoxy base phosphate, carboxymethyl cellulose (CMC), polyvinylpyrrolidone (PVP), polyethylene glycol (PEG), the condensed phosphate etc.In addition, can also use thickener and stabilizing agent, as in xanthan gum (XG), polyvinyl alcohol (PVA), the Magnesiumaluminumsilicate etc. one or more; Antifreezing agent such as sodium chloride, urea, ammonium sulfate, ethylene glycol, 1, one or more in the polyalcohols such as 2-propane diols; And pH regulator agent such as citric acid commonly used, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, potash, sodium carbonate, and as organic silicon defoaming agent, organosilicon foam inhibitor etc.
Aqueous emulsion (EW) is that water-fast original liquid body or former medicine are dissolved in the liquid preparation that the liquid dispersion of water-fast organic solvent gained forms in water.Can and comprise the auxiliary element of solvent, emulsifier, co-emulsifier, antifreeze, defoamer, antimicrobial, pH regulator agent, density adjuster, thickener etc. by said active drug composition during preparation, make through high-shear emulsifying.Solvent wherein can be selected one or more in benzene class, ketone or the alcohols equal solvents such as toluene commonly used in the agricultural chemicals, dimethylbenzene; Emulsifier can be selected as in the poly-alkane alkene polyamine of above-mentioned ethoxyquin alkyl ether, ethoxyquin alkyl phenylate, alkylbenzenesulfonate, oxirane-propylene oxide block copolymer, alkyl phenol polyglycol ether, polyoxyethylene fatty acid ester, sorb Arrcostab, polyoxy alkane alkene, the amide-type etc. one or more; Co-emulsifier can be selected as in the alkane alcohols such as butanols, isobutanol, dodecanol-1, tetradecanol-1, octadecanol-1 one or more; Antifreeze can be selected as above-mentioned sodium chloride, urea, ammonium sulfate, ethylene glycol, 1, one or more in the polyalcohols such as 2-propane diols; Thickener and stabilizing agent also can be selected as in above-mentioned xanthan gum (XG), polyvinyl alcohol (PVA), the Magnesiumaluminumsilicate etc. one or more, and auxiliary agents such as pH regulator agent of using in case of necessity and defoamer etc.
Water dispersible granules (WDG) is can be in water very fast disintegration, and is dispersed in a kind of granule that forms the higher suspension dispersion in the water.Former medicine, auxiliary agent, adjuvant etc. one can be reinstated comminution by gas stream or ultra-fine grinding during preparation, make wetting powder, carry out granulation then, this is a dry powder, and with former medicine, auxiliary agent, adjuvant etc., is medium with water, porphyrize in sand mill, make suspending agent, then at drying-granulating, this is a wet method.
Dispersion moisture agent is generally selected anion surfactants such as drawing back powder, lauryl sodium sulfate, lignosulfonates, calcium dodecyl benzene sulfonate for use, non-ionic surface active agents such as alkyl polyoxyethylene ether OP series.Help disintegrant can select ammonium sulfate, anhydrous sodium sulfate, polyethyl acrylate etc. for use.Binding agent is generally selected polyvinyl alcohol, polyvinylpyrrolidone, CMC, starch, dextrin etc. for use, and filler is generally selected one or several in kaolin, precipitated calcium carbonate, the bentonite for use, also needs to add pH regulator agent and defoamer etc. where necessary.
Embodiment below in conjunction with embodiment is described in further detail foregoing of the present invention again.But this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following example.Do not breaking away under the above-mentioned technological thought situation of the present invention, various replacements or change according to ordinary skill knowledge and customary means are made all should comprise within the scope of the invention.Each raw material composition is weight % among the embodiment.
One, wetting powder
Embodiment 1 25% fluroxypyr bentazone wetting powder
Form: fluroxypyr ester 3
Bentazone 22
Calcium lignosulfonate 6
Carboxymethyl cellulose 3
Neopelex 3
Kaolin 63
Preparation method: various materials are added in the reactor successively, under stirring condition, it is fully mixed, be crushed to certain fineness.
Embodiment 2 38% fluroxypyr bentazone wetting powders
Form: fluroxypyr ester 7
Bentazone 32
Negel formaldehyde condensation products 5
Alkylphenol-polyethenoxy ichthyodin 3
White carbon 5
Fine particle calcium carbonate complementary to 100
Preparation method: various materials are added in the reactor successively, under stirring condition, it is fully mixed, be crushed to certain fineness.
Embodiment 3 64% fluroxypyr bentazone wetting powders
Form: fluroxypyr ester 10
Bentazone 54
Naphthalenesulfonate formaldehyde condensation compound 5
Alkylnaphthalene sulfonate 4
White carbon 3
Fine particle calcium carbonate complementary to 100
Preparation method: various materials are added in the reactor successively, under stirring condition, it is fully mixed, be crushed to certain fineness.
Two, suspending agent
Embodiment 4 40% fluroxypyr bentazone suspending agents
Form: fluroxypyr ester 4
Bentazone 36
Acrylic acid minor matters copolymer 6
Xanthan gum (XG) 0.5
Ethylene glycol 5
Bentonite complementary to 100
Preparation method: various compositions are mixed, just disperse, in sand mill, be ground to active ingredient particle diameter to 2~5 μ m then at high-speed shearing machine.
Embodiment 5 35% fluroxypyr bentazone suspending agents
Form: fluroxypyr 3
Bentazone 32
Alkylphenol polyoxyethylene phosphate 6
Alkylsulfonate 4
Ethylene glycol 3
Water complementary to 100
Preparation method: various compositions are mixed, just disperse, in sand mill, be ground to the active ingredient particle diameter then less than 2~5 μ m at high-speed shearing machine.
Embodiment 6 45% fluroxypyr bentazone suspending agents
Form: fluroxypyr ester 15
Bentazone 30
Acrylic acid minor matters copolymer 5
Polycarboxylate 3
Ethylene glycol 2
Water complementary to 100
Preparation method: various compositions are mixed, just disperse, in sand mill, be ground to the active ingredient particle diameter then less than 2~5 μ m at high-speed shearing machine.
Three, water dispersible granules
Embodiment 7 30% fluroxypyr bentazone water dispersible granules
Form: fluroxypyr ester 2
Bentazone 28
Alkylnaphthalene sulfonate 4
Polycarboxylate 5
Polyvinyl alcohol 5
Anhydrous sodium sulfate complementary to 100
Preparation method: said mixture is evenly mixed, grinds, mix suitable quantity of water and granulation, but be drying to obtain dispersible granule.
Embodiment 8 50% fluroxypyr bentazone water dispersible granules
Form: fluroxypyr ester 5
Bentazone 45
Lignin naphthalene sulfonate 6
Polyoxyethylene alkyl ether 3
White carbon 5
Kaolin complementary to 100
Preparation method: said mixture is evenly mixed, grinds, mix suitable quantity of water and granulation, but be drying to obtain dispersible granule.
Four, aqueous emulsion
Embodiment 10 10% fluroxypyr bentazone aqueous emulsions
Form: fluroxypyr ester 2
Bentazone sodium salt 8
Heavy naptha 10
Oxirane-propylene oxide block copolymer 5
Ethylene glycol 3
Water complementary to 100
Preparation method: former medicine, emulsifier, solvent, co-emulsifier mixing are made into the homogeneous oil phase, water, antifreeze are mixed being made into the homogeneous water, under the stirring of high-speed shearing machine, pour oil phase into aqueous phase and get final product.
Embodiment 11 25% fluroxypyr bentazone aqueous emulsions
Form: fluroxypyr ester 3.5
Bentazone sodium salt 21.5
Heavy naptha 15
Alkyl phenol formaldehyde resin polyoxyethylene ether 2.5
Fatty alcohol-polyoxyethylene ether 5
Water complementary to 100
The preparation method: change agent, solvent, co-emulsifier mixing are made into the homogeneous oil phase, water, antifreeze are mixed being made into the homogeneous water, under the stirring of high-speed shearing machine, pour oil phase into aqueous phase and get final product.
Following result of the test can show, in the above-mentioned Herbicidal combinations of the present invention, two active ingredient fluroxypyrs and bentazone can the tool obvious synergistic effect, can prevent and kill off broad leaved weed, can prevent and kill off nutgrass flatsedge again, and improve herbicidal effect, reduce production cost.
Existing studies show that, when different herbicidal compositions were used in combination, if then should there be synergistic effect in the activity of weeding after the combination during active when surpassing separate constituent and using.The expectation activity of two kinds of herbicidal compositions under given combination can have formula to calculate (referring to, Colby, SR., Calculating synergistic and antagonistic response of herbicidecombination, Weed 15, pp 20-22,1967):
If at amount of application is under the situation of p kg/ hectare, the loss ratio of weed killer herbicide A is X%; Be that weed killer herbicide B loss ratio is Y% under the situation of q kg/ hectare at amount of application; Be under the situation of p and q kg/ha at amount of application then, the speculative damage rate of weed killer herbicide A and B is E%, wherein E=X+Y-X*Y/100.If actual damage surpasses calculated value, the activity of composition is super adduction, i.e. its demonstration synergy.
Can prove the preventive effect of the above-mentioned Herbicidal combinations of the present invention by following correlation test result.
Test one: results from pot experiment test is as shown in table 1.Wherein Monochoria vaginalis is the 2-4 leaf phase, clearvers 2-3 wheel blade.
The composite indoor virulence of table 1 fluroxypyr and bentazone to broad leaved weed
Figure GSA00000074251600071
Test two: field control effectiveness test result
Wherein, behind the rice transplanting 14 days, the weeds 3-4 leaf phase, shown in the table 2 was that the preventive effect result of 30 days investigation fresh weights after the dispenser is as shown in table 2.
To the wheat 3-4 leaf phase, the weeds 3-4 leaf phase, 45 days investigation fresh weight preventive effects are as a result shown in the table 3 after the dispenser.
To the corn 4-5 leaf phase, the weeds 3-5 leaf phase, 30 days investigation fresh weight preventive effect results are as shown in table 4 after the dispenser.
The composite test of pesticide effectiveness result who prevents and kill off the paddy field broad leaved weed of table 2 fluroxypyr and bentazone
Figure GSA00000074251600081
The composite test of pesticide effectiveness result who prevents and kill off the wheat paddock broad leaved weed of table 3 fluroxypyr and bentazone
The composite test of pesticide effectiveness result who prevents and kill off the corn field broad leaved weed of table 4 fluroxypyr and bentazone
Figure GSA00000074251600083
Show by table 2,3,4 result of the test, by the reduce by half composition of medicine of back combination of two kinds of single-dose things, preventive effect in four kinds of different weeds tests all is higher than the single-dose thing of full dosage respectively, and most statistical dispositions have all showed the difference of significance, illustrate that fluroxypyr and bentazone can have significant synergistic effect after composite, and there is not antagonism, to paddy rice, wheat, corn safety.

Claims (4)

1. Herbicidal combinations is characterized in that with fluroxypyr and bentazone be active ingredient, forms jointly with acceptable auxiliary element in the agricultural chemicals, and the percentage by weight of fluroxypyr and bentazone is 4: 1~1: 48.
2. Herbicidal combinations as claimed in claim 1, the percentage by weight that it is characterized in that said active ingredient fluroxypyr and bentazone is 2: 1~1: 24.
3. Herbicidal combinations as claimed in claim 2, the percentage by weight that it is characterized in that said active ingredient fluroxypyr and bentazone is 1: 3~1: 12.
4. as the described Herbicidal combinations of one of claim 1 to 3, it is characterized in that forming any formulation in operational wetting powder, water dispersible granules, suspending agent, aqueous emulsion or the suspension emulsion jointly by acceptable auxiliary element in said active ingredient and the agricultural chemicals.
CN 201010153451 2010-04-20 2010-04-20 Weeding composition Pending CN101803604A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102150668A (en) * 2010-12-07 2011-08-17 北京颖新泰康国际贸易有限公司 Herbicide composition, preparation and application thereof
CN102239841A (en) * 2011-05-17 2011-11-16 安徽丰乐农化有限责任公司 Weeding aqueous emulsion
CN104351214A (en) * 2014-10-20 2015-02-18 柳州市天姿园艺有限公司 Weeding method
CN105707087A (en) * 2014-12-04 2016-06-29 江苏龙灯化学有限公司 Synergistic weeding composition
CN105994302A (en) * 2016-06-25 2016-10-12 创新美兰(合肥)股份有限公司 MCPA-isooctyl, bentazone and fluroxypyr compound missible oil and preparing method thereof
CN106359409A (en) * 2016-08-26 2017-02-01 安徽久易农业股份有限公司 Mixed herbicide containing bentazone, propanil and fluroxypyr

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006065094A1 (en) * 2004-12-17 2006-06-22 Lg Life Sciences Ltd. Synergistic herbicidal compositions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006065094A1 (en) * 2004-12-17 2006-06-22 Lg Life Sciences Ltd. Synergistic herbicidal compositions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《Weed Science》 20000430 Grzegorz Gadamski et al. Negative cross-resistance in triazine-resistant biotypes of Echinochloa crus-galli and Conyza Canadensis 176-180 1-4 第48卷, *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102150668A (en) * 2010-12-07 2011-08-17 北京颖新泰康国际贸易有限公司 Herbicide composition, preparation and application thereof
CN102150668B (en) * 2010-12-07 2013-09-04 北京颖泰嘉和生物科技有限公司 Herbicide composition, preparation and application thereof
CN102239841A (en) * 2011-05-17 2011-11-16 安徽丰乐农化有限责任公司 Weeding aqueous emulsion
CN102239841B (en) * 2011-05-17 2013-10-02 安徽丰乐农化有限责任公司 Weeding aqueous emulsion
CN104351214A (en) * 2014-10-20 2015-02-18 柳州市天姿园艺有限公司 Weeding method
CN105707087A (en) * 2014-12-04 2016-06-29 江苏龙灯化学有限公司 Synergistic weeding composition
CN105707087B (en) * 2014-12-04 2018-05-15 江苏龙灯化学有限公司 A kind of Synergistic herbicide compositions
CN105994302A (en) * 2016-06-25 2016-10-12 创新美兰(合肥)股份有限公司 MCPA-isooctyl, bentazone and fluroxypyr compound missible oil and preparing method thereof
CN106359409A (en) * 2016-08-26 2017-02-01 安徽久易农业股份有限公司 Mixed herbicide containing bentazone, propanil and fluroxypyr

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Application publication date: 20100818