CN101971822A - Synergistic weeding composite and application method thereof - Google Patents
Synergistic weeding composite and application method thereof Download PDFInfo
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- CN101971822A CN101971822A CN2010105239307A CN201010523930A CN101971822A CN 101971822 A CN101971822 A CN 101971822A CN 2010105239307 A CN2010105239307 A CN 2010105239307A CN 201010523930 A CN201010523930 A CN 201010523930A CN 101971822 A CN101971822 A CN 101971822A
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Abstract
The invention relates to a synergistic weeding composite and a method for preventing and curing ill weed growth through applying effective weeding dose of synergistic weeding composite on ill weed places. The synergistic weeding composite comprises (a) 2-(2'-nitryl-4'-methanesulfonyl benzoyl)-1, 3-cyclohexanedione [general name: Mesotrione] or 2-(2'-nitryl-4'-methylsulfonyl oxygroup benzoyl)-1, 3-cyclohexanedione or 2-(2'-chlorine-4'-methylsulfonyl benzoyl)-1, 3-cyclohexanedione, (b) 2- chlorine-4-ethylamino group-6-isopropylamin-S-triazine [general name: atrazine], and (c) 3, 5-dibromo-4-enanthyl oxygen benzonitrile [general name: enanthyl bromoxynil]. The invention also discloses a method for preventing and curing the ill weed growth through applying effective weeding dose of synergistic weeding composite on the ill weed places.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations of synergy, and this Synergistic herbicide compositions and the careless method of growing of green bristlegrass green bristlegrass that the grassland prevents and treats by using herbicidally effective amount.
Background technology
Cover crop is not suppressed the weeds of plant growth and the harm of other plant is that agricultural goes up long-standing problem.For helping to tackle this problem, the researchers of the field of chemical synthesis produce miscellaneous chemicals and the chemicals that can effectively prevent and treat this obnoxious growth.Disclosed the weed killer herbicide of many types in the document already, and had many commercial.
Its effect to plant growing separately of compound of forming the combination of theme of the present invention is well known in the prior art.2-chloro-4-ethylamino-6-isopropylamino-S-triazine, common name: atrazine, sell with the extensive stock name, and be described in " in the U.S. weeding scientific institution weed killer herbicide handbook the 5th edition of nineteen eighty-three publication; Atrazine is before the interior suction selectivity seedling, herbicide after seedling, and root absorption is main, and cauline leaf absorbs seldom, has early stage herbicidal effect behind closed soil weeding and the seedling concurrently, can prevent and treat annual broadleaf weed and grassy weed.The lasting period of atrazine in soil is longer, should not arbitrarily strengthen the dosage of atrazine, should not use in arid especially area, in order to avoid succession crop is produced poisoning.
2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, common name: nitre sulphur humulone is disclosed in the US5 of Carter etc., in 006,158; And 2-(2 '-nitro-4 '-sulfonyloxy methyl oxygen base benzoyl)-hydroresorcinol is disclosed in the US5 of Lee etc., in 089,046; 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, common name: the sulphur humulone is disclosed in (on April 4th, 85 is open) in the European patent EP 0137963.Mesotrione and sulphur humulone are a kind of efficient, safe corn field herbicides, after both can being used for also can being used for bud before the bud, the broad leaved weed of corn field are had special efficacy, but general to the grassy weed control efficiency.
3,5-two bromo-4-decoyl oxygen benzonitriles, common name: bromoxynil octanoate is disclosed in US3, in 592,626.3,5-two bromo-4-oenanthyl oxygen benzonitriles, common name: the oenanthyl Brominal is disclosed in US6, in 255,252.。Cauline leaf was handled the contact killing type weed killer herbicide after Brominal was widely used as the selectivity seedling abroad with the form of its caprylate, heptanoate, sodium salt or sylvite.It is that a kind of selectivity cauline leaf is handled the contact killing type weed killer herbicide, is mainly absorbed by blade, by suppressing photosynthetic each process, makes necrosis rapidly.Can effectively prevent and kill off the broad leaved weed in wheat, the corn field, to gramineous crop safety, all noresidues in crop cauline leaf and grain, in the vegetative period that plant growth is grown, use, from first and second sheet leaf zoon of cereal plant to the end a slice leaf zoon to the end a slice leaf grow up to all and can use, but as all medications of 2 to 8 leaf phases of corn.
Because relate to during weed killer herbicide uses to the effects of weeds with to the balance of two aspects of safety of crop, the specification requirement height, can not at will use with, above-mentioned three class weed killer herbicides are many based on single agent at present, as 38% atrazine suspending agent, 90% atrazine water dispersible granule, 15% nitre sulphur humulone suspending agent, 100g/L nitre sulphur humulone aqueous suspension agent, 25% bromoxynil octanoate missible oil etc.Binary or ternary built that some nicosulfurons, nitre sulphur humulone (or sulphur humulone) and atrazine are also arranged in addition, as 550g/L nitre sulphur humulone+atrazine suspending agent, 24% nicosulfuron+sulphur humulone+atrazine suspending agent.In a word, existing single agent and composite dose in use still exist some deficiency, and be good inadequately, not high enough to crop safety as preparation stability, to kill the grass spectrum wide inadequately etc.
And yet there are no report for the composition of component (a) and (b) among the present invention and (c) ternary built, have now found that contain above-mentioned (a) and (b) and (c) composition of composition present positive effect for suppressing undesirable plant growing.
Summary of the invention
One object of the present invention is to provide a kind of Herbicidal combinations that contains following compositions
(a) 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-1, nitre sulphur humulone) or 2-(2 '-nitro-4 '-sulfonyloxy methyl oxygen base benzoyl)-1 hydroresorcinol (common name:, hydroresorcinol or 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol (common name: the sulphur humulone);
(b) 2-chloro-4-ethylamino-6-isopropylamino-S-triazine (common name: atrazine);
(c) 3, and 5-two bromo-4-decoyl oxygen benzonitriles (common name: bromoxynil octanoate) or 3,5-two bromo-4-oenanthyl oxygen benzonitrile (common names: the oenanthyl Brominal)
Term used herein " weed killer herbicide " is meant the compound of control or limiting plant growth.Used term " herbicidally effective amount " is meant that this compound or these combination of compounds can produce the amount of control or restriction effect.Control or restriction effect are meant all situations that nature is grown that departs from that comprises, for example: kill, suppress, burn leaf, dwarfing etc." plant " is meant all entity departments of plant, comprising: seed, seedling, sapling, root, stem tuber, stem, handle, Ye Heguo.
A kind of Herbicidal combinations of synergy, it is characterized in that comprising (a) 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-1, hydroresorcinol or 2-(2 '-nitro-4 '-sulfonyloxy methyl oxygen base benzoyl)-1, hydroresorcinol or 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol; (b) 2-chloro-4-ethylamino-6-isopropylamino-S-triazine; (c) 3,5-two bromo-4-decoyl oxygen benzonitriles or 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
The Herbicidal combinations of described synergy, wherein component (a) be 1-50: 1-50: 1-50 (b) with (c) weight ratio.
The Herbicidal combinations of described synergy, wherein, component (a) be 1-15: 1-50: 1-15 (b) with (c) weight ratio.
The Herbicidal combinations of described synergy, wherein component (a) is 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-decoyl oxygen benzonitriles.
The Herbicidal combinations of described synergy, wherein component (a) is 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
The Herbicidal combinations of described synergy, wherein component (a) is 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-decoyl oxygen benzonitriles.
The Herbicidal combinations of described synergy, wherein component (a) is 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
The application of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass.
The application method of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass, comprise the following Synergistic herbicide compositions that comprises that imposes on green bristlegrass grassland institute effective dose: comprise (a) 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-1, hydroresorcinol or 2-(2 '-nitro-4 '-sulfonyloxy methyl oxygen base benzoyl)-1, hydroresorcinol or 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol; (b) 2-chloro-4-ethylamino-6-isopropylamino-S-triazine; (c) 3,5-two bromo-4-decoyl oxygen benzonitriles or 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
The application method of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass, wherein component (a) be 1-50: 1-50: 1-50 (b) with (c) weight ratio.
The application method of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass, wherein component (a) be 1-15: 1-50: 1-15 (b) with (c) weight ratio.
The application method of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass, wherein component (a) is 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-decoyl oxygen benzonitriles.
The application method of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass, wherein component (a) is 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
The application method of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass, wherein component (a) is 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-decoyl oxygen benzonitriles.
The application method of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass, wherein component (a) is 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
The application method of the Herbicidal combinations of described synergy in preventing and treating the green bristlegrass grass, wherein said composition is a postemergence application.
In Herbicidal combinations of the present invention, effective operating weight of these compounds is than being (a): (b): (c) be 1-50: 1-50: 1-50, preferred weight ratio is (a): (b): (c) be 1-15: 1-50: 1-15.
Amount of application depends on the concrete floristics and the degree of required control.Usually, the present composition uses the most effective with the amount of 0.001 to 5 kilogram of per hectare.
The present composition can be used as weed killer herbicide, and it demonstrates the synergistic activity of preventing and treating the green bristlegrass grass.The present composition can be with the weed killer herbicide same way as processing of processing usually.Compound can or be used respectively or as the part of three parts of weeding systems and combined administration.
The purpose of processing is to use the place of composition in the needs control by method easily.Described " place " comprises soil, seed and seedling, and long good plant.
The composition of the actual employing of the present invention can be used with various concentration with the known variety of way of those skilled in the art.The present composition before by seedling or postemergence application to prevent and treat in the green bristlegrass grass growth in the place of required control be useful.In fact, the benzene composition is used with preparation, contains various known or be used in the industrial various adjuvants and the carrier that help disperseing in the preparation.The selection of preparation and method of application can influence the activity of selected compound, so should select accordingly.
The present composition can be processed into granule, wetting powder, missible oil, dust base or pulvis, suspending agent, solution, emulsion or controlled release forms such as microcapsules.These preparations can contain 0.5%-95% or more active component by weight.Any given compound optimised quantity depends on the seed that is intended to prevent and treat or the character of plant.
The typical solid thinner comprises, for example, and clay such as bentonite, imvite, atlapulgite and kaolin, starch, sugar, silica, talcum powder, diatomite, urea, calcium carbonate, sodium carbonate and sodium bicarbonate, and sodium sulphate.
Typically liquid diluent comprises, for example, and water, N, dinethylformamide, dimethyl sulfoxide (DMSO), N-alkyl pyrrolidone, ethylene glycol, polypropylene glycol, paraffin, alkylbenzene, Fluhyzon, olive oil, castor oil, linseed oil, tung oil, sesame oil, corn oil, peanut oil, cottonseed oil, soybean oil, rapeseed oil and cupu oil, fatty acid ester, ketone such as cyclohexanone, 2-heptanone, isophorone and 4-hydroxy-4-methyl-2 pentanone and alcohols such as methyl alcohol, cyclohexanol, decyl alcohol and oxolane alcohol.
Surfactant comprises, for example, and polyethoxy alcohol; polyethoxy alkylphenol, polyethoxy fatty acid esters of sorbitan, sulfonyl succinic acid dialkyl ester; the alkyl sodium sulfate ester; alkylbenzenesulfonate, organosiloxane, N; N-dialkyl group taurate; lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, polycarboxylate and polyoxyethylene/polyoxypropylene block copolymers.
The solution class comprises missible oil, can prepare by mixing each component simply.Pulvis is with (wetting powder can prepare by the sledge mill of mixing and common usefulness.Suspending agent prepares by wet-milling usually.Granule can be by preparing on spraying active substance and the ready made particulate vector or by granulating technique.
Above-mentioned preparation is various can be prepared into the packaging bag of the weed killer herbicide of other compositions of containing with preparation (thinner, emulsifier, show activating agent etc.).The method preparation that preparation also can be mixed by bucket, in the bucket mixing method, composition be obtain respectively and in the combination of grower's place.
These preparations can be applied to the zone that is intended to prevent and treat with the method for routine.For example, pulvis and fluid composition can be used by the agent of dusting, spray boom and manual sprayer and duster.Preparation also can be executed powder by aircraft or spraying or rope band and use.Be restriction or control seeds germinated or the growth of seedlings of emerging, pulvis and liquid preparation can be distributed in that second inch of soil table is dark at least in the soil, or impose on the soil table by spraying or spreading.Preparation also can add in the irrigation water to be used.Make that like this preparation is penetrated in the soil with irrigation water.The pulvis, granule composite or the liquid preparation that impose on soil table can be distributed in below the soil table by the operation of ploughing of the mode of routine.
Another object of the present invention is to control not wish that the weeds disaster method seen, this method comprise synergistic composition of the present invention is applied to the place that need be controlled.The present invention compared with prior art has following tangible advantage and beneficial effect at least:
1. the invention provides a kind of complex weedicide, complementary not enough as three kinds of weed killer herbicides of composite dose of composition, herbicidal effect is remarkable, kills careless spectrum width, can seal the weeds that do not emerge, can prevent and kill off the weeds that emerged again, both can prevent and kill off grassy weed, use complex weedicide after preventing and treating the spectrum seedling of broad leaved weed again, both ensure safety when the stubble corn, can not endanger succession crop again, effectively prevent and kill off annual and biennial weeds.
2. the using method of complex weedicide of the present invention, the optimum period medication, consumption is few, the preventive effect height, and reduce expenses for prevention and control, and alleviate pollution to environment, be beneficial to the safety of people, animal, beneficial organism and keeping of the ecological balance, meet the sustainable development requirement.
Embodiment
The present invention is further illustrated below in conjunction with embodiment and application examples:
Embodiment 1
16% bromoxynil octanoate+nitre sulphur humulone+atrazine suspending agent
The former medicine 1% of bromoxynil octanoate
The former medicine 5% of nitre sulphur humulone
The former medicine 10% of atrazine
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Embodiment 2
27.5% bromoxynil octanoate+nitre sulphur humulone+atrazine wetting powder
The former medicine 5% of bromoxynil octanoate
The former medicine 7.5% of nitre sulphur humulone
The former medicine 15% of atrazine
Lauryl sodium sulfate 10%
Sodium lignin sulfonate 5%
White carbon 10%
Kaolin complements to 100%
Said components is mixed in proportion, and grind, pulverize, be prepared into wetting powder.
Embodiment 3
43.5% bromoxynil octanoate+nitre sulphur humulone+atrazine aqueous emulsion
Bromoxynil octanoate 10%
Nitre sulphur humulone 3.5%
Atrazine 30%
N-Methyl pyrrolidone 25%
Calcium dodecyl benzene sulfonate 5%
The newborn 600# 7% of farming
Water complements to 100%
Above-mentioned oil phase component is mixed the back add aqueous phase, obtain aqueous emulsion.
Embodiment 4
66% bromoxynil octanoate+nitre sulphur humulone+atrazine water dispersible granule
Bromoxynil octanoate 39%
Nitre sulphur humulone 9%
Atrazine 18%
Polyvinyl alcohol 4%
Saponin 3%
Methylcellulose 5%
Kaolin complements to 100%
To add a spot of water extruder grain after above-mentioned each component mixing pulverizing, oven dry obtains water dispersible granules.
Embodiment 5
38% bromoxynil octanoate+sulphur humulone+atrazine aqueous emulsion
Bromoxynil octanoate 8%
Sulphur humulone 8%
Atrazine 22%
N-Methyl pyrrolidone 25%
Calcium dodecyl benzene sulfonate 5%
The newborn 600# 7% of farming
Water complements to 100%
Above-mentioned oil phase component is mixed the back add aqueous phase, obtain aqueous emulsion.
Embodiment 6
20% oenanthyl Brominal+sulphur humulone+atrazine suspending agent
Oenanthyl Brominal 5%
Sulphur humulone 4%
Atrazine 11%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Embodiment 7
56% oenanthyl Brominal+nitre sulphur humulone+atrazine aqueous emulsion
Oenanthyl Brominal 1%
Nitre sulphur humulone 5%
Atrazine 50%
N-Methyl pyrrolidone 25%
Calcium dodecyl benzene sulfonate 5%
The newborn 600# 7% of farming
Water complements to 100%
Above-mentioned oil phase component is mixed the back add aqueous phase, obtain aqueous emulsion.
Embodiment 8
Bromoxynil octanoate 15%
2-(2 '-nitro-4 '-sulfonyloxy methyl oxygen base benzoyl) 7%
-hydroresorcinol
Atrazine 28%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Embodiment 9
Oenanthyl Brominal 10%
2-(2 '-nitro-4 '-sulfonyloxy methyl oxygen base benzoyl) 3%
-hydroresorcinol
Atrazine 30%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Embodiment 10
Bromoxynil octanoate 1%
Sulphur humulone 1%
Atrazine 50%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Embodiment 11
Oenanthyl Brominal 1%
Nitre sulphur humulone 50%
Atrazine 1%
Polyvinyl alcohol 4%
Saponin 3%
Methylcellulose 5%
Kaolin complements to 100%
To add a spot of water extruder grain after above-mentioned each component mixing pulverizing, oven dry obtains water dispersible granules.
Embodiment 12
Oenanthyl Brominal 37.5%
Nitre sulphur humulone 0.75%
Atrazine 37.5%
Polyvinyl alcohol 4%
Saponin 3%
Methylcellulose 5%
Kaolin complements to 100%
To add a spot of water extruder grain after above-mentioned each component mixing pulverizing, oven dry obtains water dispersible granules
Embodiment 13
Bromoxynil octanoate 37.5%
Nitre sulphur humulone 37.5%
Atrazine 0.75%
Polyvinyl alcohol 4%
Saponin 3%
Methylcellulose 5%
Kaolin complements to 100%
To add a spot of water extruder grain after above-mentioned each component mixing pulverizing, oven dry obtains water dispersible granules
Embodiment 14
Bromoxynil octanoate 50%
Nitre sulphur humulone 1%
Atrazine 1%
Polyvinyl alcohol 4%
Saponin 3%
Methylcellulose 5%
Kaolin complements to 100%
To add a spot of water extruder grain after above-mentioned each component mixing pulverizing, oven dry obtains water dispersible granules.
Embodiment 15
Bromoxynil octanoate 15%
Nitre sulphur humulone 1%
Atrazine 50%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Embodiment 16
Bromoxynil octanoate 15%
Nitre sulphur humulone 15%
Atrazine 1%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Application examples:
Use disposal plastic cup, burrow, adorn the sieve fine earth and the water of equivalent then, make the soil table smooth, moistening in the plastic cup bottom, and at soil table sowing lady's-grass, acalypha copperleaf, 30 of lamb's-quarters seeds.Before lady's-grass is broadcast backteeth, the 3 leaf phases of acalypha copperleaf, the 3 leaf phases of lamb's-quarters, the basin alms bowl is placed in the zone on 1.0 square metres on ground, the amount of liquid medicine of pressing 50kg/667m2, with vapour-pressure type sprayer even spraying, each is handled 5 times and repeats.After the medication weeds are carried out normal management, and in medication 48 hours, note rainproof.Observe the growing state of weeds behind the medicine, each processing of record weed killer herbicide is to the preventive effect of weeds.Behind the weeds medicine 10 days and 30 days, each handled fresh weight preventive effect to weeds investigation.
Fresh weight preventive effect (%)=[check plot weeds fresh weight-treatment region weeds fresh weight]/[check plot weeds fresh weight] * 100
Table 1 is used 10 days preventive effects to corn field weed behind the Herbicidal combinations medicine of the present invention
Conclusion: as can be seen from Table 1, after the dispenser 10, according to ternary recompounded composite of the present invention, to lamb's-quarters, lady's-grass, the preventive effect of acalypha copperleaf is all more than 90%, apparently higher than the preventive effect of single agent and binary built.And according to composition of the present invention, the amount of application of active ingredient obviously reduces than the amount of application of single agent and binary built.
Table 2 is used 30 days preventive effects to corn field weed behind the Herbicidal combinations medicine of the present invention
Conclusion: as can be seen from Table 2, dispenser 30 days, according to ternary recompounded composite of the present invention, to lamb's-quarters, lady's-grass, the preventive effect of acalypha copperleaf remains on more than 90%, apparently higher than the preventive effect of single agent and binary built.According to ternary built thing of the present invention, to broad-leaved section and weeds preventive effect height gramineous, the lasting period is long.
Claims (16)
1. the Herbicidal combinations of a synergy, it is characterized in that comprising (a) 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-1, hydroresorcinol or 2-(2 '-nitro-4 '-sulfonyloxy methyl oxygen base benzoyl)-1, hydroresorcinol or 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol; (b) 2-chloro-4-ethylamino-6-isopropylamino-S-triazine; (c) 3,5-two bromo-4-decoyl oxygen benzonitriles or 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
2. the Herbicidal combinations of synergy according to claim 1, wherein component (a) be 1-50: 1-50: 1-50 (b) with (c) weight ratio.
3. according to the Herbicidal combinations of claim 1 and 2 described synergy, wherein, component (a) be 1-15: 1-50: 1-15 (b) with (c) weight ratio.
4. the Herbicidal combinations of synergy according to claim 1, wherein component (a) is 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-decoyl oxygen benzonitriles.
5. the Herbicidal combinations of synergy according to claim 1, wherein component (a) is 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
6. the Herbicidal combinations of synergy according to claim 1, wherein component (a) is 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-decoyl oxygen benzonitriles.
7. the Herbicidal combinations of synergy according to claim 1, wherein component (a) is 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol, component (b) is (2-chloro-4-an ethylamino-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
8. the application of the Herbicidal combinations of the described synergy of claim 1 in preventing and treating the green bristlegrass grass.
9. the application method of the Herbicidal combinations of synergy according to claim 8 in preventing and treating the green bristlegrass grass, comprise the following Synergistic herbicide compositions that comprises that imposes on green bristlegrass grassland institute effective dose: comprise (a) 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-1, hydroresorcinol or 2-(2 '-nitro-4 '-sulfonyloxy methyl oxygen base benzoyl)-1, hydroresorcinol or 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-hydroresorcinol; (b) 2-chloro-4-ethylamino-6-isopropylamino-S-triazine; (c) 3,5-two bromo-4-decoyl oxygen benzonitriles or 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
10. the application method of the Herbicidal combinations of synergy according to claim 9 in preventing and treating the green bristlegrass grass, wherein component (a) be 1-50: 1-50: 1-50 (b) with (c) weight ratio.
11. the application method of the Herbicidal combinations of synergy according to claim 9 in preventing and treating the green bristlegrass grass, wherein component (a) be 1-15: 1-50: 1-15 (b) with (c) weight ratio.
12. the application method of the Herbicidal combinations of synergy according to claim 9 in preventing and treating the green bristlegrass grass, wherein component (a) is 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-1, hydroresorcinol, component (b) are (2-chloro-4-ethylaminos-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-decoyl oxygen benzonitriles.
13. the application method of the Herbicidal combinations of synergy according to claim 9 in preventing and treating the green bristlegrass grass, wherein component (a) is 2-(2 '-nitro-4 '-methyl sulphonyl benzoyl)-1, hydroresorcinol, component (b) are (2-chloro-4-ethylaminos-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
14. the application method of the Herbicidal combinations of synergy according to claim 9 in preventing and treating the green bristlegrass grass, wherein component (a) is 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-1, hydroresorcinol, component (b) are (2-chloro-4-ethylaminos-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-decoyl oxygen benzonitriles.
15. the application method of the Herbicidal combinations of synergy according to claim 9 in preventing and treating the green bristlegrass grass, wherein component (a) is 2-(2 '-chloro-4 '-methyl sulphonyl benzoyl)-1, hydroresorcinol, component (b) are (2-chloro-4-ethylaminos-6-isopropylamino-S-triazine; Component (c) is 3,5-two bromo-4-oenanthyl oxygen benzonitriles.
16. the application method of the Herbicidal combinations of synergy according to claim 9 in preventing and treating the green bristlegrass grass, wherein said composition is a postemergence application.
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| CN102265825A (en) * | 2011-06-14 | 2011-12-07 | 陕西韦尔奇作物保护有限公司 | Synergistic weeding composition containing mesotrione |
| CN103250722A (en) * | 2012-02-18 | 2013-08-21 | 陕西美邦农药有限公司 | Bromoxynil octanoate-containing pesticide composition |
| CN106332895A (en) * | 2016-08-25 | 2017-01-18 | 上海贯发海洋生物科技有限公司 | Iodine oligosaccharide acid-containing synergistic weeding composition and applications thereof |
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| CN101217869A (en) * | 2005-07-07 | 2008-07-09 | 拜尔作物科学股份公司 | Cultigen-compatible herbicidal agents containing herbicides and acylsulfamoylbenzamide safeners |
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