CN102283231A - Oil suspending agent composition containing nicosulfuron and fluroxypyr - Google Patents
Oil suspending agent composition containing nicosulfuron and fluroxypyr Download PDFInfo
- Publication number
- CN102283231A CN102283231A CN201110167216A CN201110167216A CN102283231A CN 102283231 A CN102283231 A CN 102283231A CN 201110167216 A CN201110167216 A CN 201110167216A CN 201110167216 A CN201110167216 A CN 201110167216A CN 102283231 A CN102283231 A CN 102283231A
- Authority
- CN
- China
- Prior art keywords
- oil
- suspending agent
- fluroxypyr
- nicosulfuron
- herbicidal combinations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000005558 Fluroxypyr Substances 0.000 title claims abstract description 38
- 239000005586 Nicosulfuron Substances 0.000 title claims abstract description 38
- MEFQWPUMEMWTJP-UHFFFAOYSA-N fluroxypyr Chemical compound NC1=C(Cl)C(F)=NC(OCC(O)=O)=C1Cl MEFQWPUMEMWTJP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- RTCOGUMHFFWOJV-UHFFFAOYSA-N nicosulfuron Chemical compound COC1=CC(OC)=NC(NC(=O)NS(=O)(=O)C=2C(=CC=CN=2)C(=O)N(C)C)=N1 RTCOGUMHFFWOJV-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000000375 suspending agent Substances 0.000 title claims abstract description 30
- 239000000203 mixture Substances 0.000 title abstract description 16
- 230000002363 herbicidal effect Effects 0.000 claims description 39
- 244000025254 Cannabis sativa Species 0.000 claims description 13
- 240000008042 Zea mays Species 0.000 claims description 7
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 239000000080 wetting agent Substances 0.000 claims description 6
- 230000002528 anti-freeze Effects 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 3
- 239000008158 vegetable oil Substances 0.000 claims description 3
- 244000058871 Echinochloa crus-galli Species 0.000 claims description 2
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 2
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 2
- 235000009973 maize Nutrition 0.000 claims description 2
- 229920001285 xanthan gum Polymers 0.000 claims description 2
- 235000005687 corn oil Nutrition 0.000 claims 1
- 239000002285 corn oil Substances 0.000 claims 1
- 238000009333 weeding Methods 0.000 abstract description 6
- 239000000575 pesticide Substances 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 33
- 239000003814 drug Substances 0.000 description 16
- 239000004009 herbicide Substances 0.000 description 15
- 240000006995 Abutilon theophrasti Species 0.000 description 12
- 241000192043 Echinochloa Species 0.000 description 12
- 238000012545 processing Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- -1 antifreeze Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 238000011835 investigation Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 5
- 235000005822 corn Nutrition 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 230000003449 preventive effect Effects 0.000 description 5
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical compound [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- 239000003905 agrochemical Substances 0.000 description 4
- 238000004166 bioassay Methods 0.000 description 4
- 230000002401 inhibitory effect Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000012136 culture method Methods 0.000 description 3
- 239000002552 dosage form Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000050 nutritive effect Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 235000019198 oils Nutrition 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 240000005979 Hordeum vulgare Species 0.000 description 2
- 235000007340 Hordeum vulgare Nutrition 0.000 description 2
- 240000001140 Mimosa pudica Species 0.000 description 2
- 235000016462 Mimosa pudica Nutrition 0.000 description 2
- 244000292697 Polygonum aviculare Species 0.000 description 2
- 235000006386 Polygonum aviculare Nutrition 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 244000098338 Triticum aestivum Species 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 208000006278 hypochromic anemia Diseases 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 235000014347 soups Nutrition 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- WTLNOANVTIKPEE-UHFFFAOYSA-N 2-acetyloxypropanoic acid Chemical compound OC(=O)C(C)OC(C)=O WTLNOANVTIKPEE-UHFFFAOYSA-N 0.000 description 1
- 244000215068 Acacia senegal Species 0.000 description 1
- 240000001592 Amaranthus caudatus Species 0.000 description 1
- 235000009328 Amaranthus caudatus Nutrition 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 241000207894 Convolvulus arvensis Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 206010053759 Growth retardation Diseases 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 241001582888 Lobus Species 0.000 description 1
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 1
- 235000011999 Panicum crusgalli Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920001800 Shellac Polymers 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 235000002594 Solanum nigrum Nutrition 0.000 description 1
- 240000002307 Solanum ptychanthum Species 0.000 description 1
- 229940100389 Sulfonylurea Drugs 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000012735 amaranth Nutrition 0.000 description 1
- 239000004178 amaranth Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229940105329 carboxymethylcellulose Drugs 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 231100000001 growth retardation Toxicity 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 231100000225 lethality Toxicity 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012053 oil suspension Substances 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000004563 wettable powder Substances 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a pesticide composition, in particular to an oil suspending agent weeding composition prepared by compounding nicosulfuron and fluroxypyr, wherein the weight ratio of the nicosulfuron to the fluroxypyr is preferably (1:1)-(1:4), further preferably 1: (1.5-2), and most preferably 1:2. The total application amount of the nicosulfuron and the fluroxypyr is preferably 100-120g/hm<2>.
Description
Technical field
The present invention relates to pesticide field, particularly relate to a kind of oil-suspending agent Herbicidal combinations that forms by nicosulfuron and fluroxypyr binary built.
Background technology
Nicosulfuron (nicosulfuron) is by inhaling the conductivity weed killer herbicide in the sulfonylurea of Japanese Shi Yuan company exploitation, can be weeds cauline leaf and root absorbs, in plant corpus, conduct subsequently, by suppressing the activity of acetolactate synthestase in the plant corpus, cause sensitive plant growth retardation, cauline leaf chlorisis, withered gradually, death in 20-25 days generally speaking, but under the lower situation of temperature, some perennial weed is needed the long time.In the dispenser good drug efficacy before the phase of 4 leaves behind the bud, the dispenser drug effect descended when seedling was big.This medical instrument has the preceding activity of weeding of bud, but active in low behind the bud.
The chemical structural formula of nicosulfuron is:
Fluroxypyr (fluroxypyr) is the organic heterocyclic class selectivity inner sucting conduction type herbicide after seedling of The Dow Agrosciences, LLC. (Dow AgroSciences Company) Development and Production, is applicable to the various broad leaved weeds of gramineous crop Tanaka such as preventing and kill off wheat, barley, corn.Fluroxypyr is the inner sucting conduction type herbicide after seedling, and is very fast by plant absorbing behind the medicine, makes sensitive plant the reaction of typical hormone herbicide occur, and plant deformity, distortion are finally withered.Be applicable to that ground such as wheat, barley, corn, grape, orchard, pasture, forest land, lawn prevent and kill off broad leaved weed; As clearvers, volume stem knotweed, kitchen garden, black nightshade, field bindweed, knotweed, amaranth etc., invalid to grassy weed.
The chemical structural formula of fluroxypyr:
At present for nicosulfuron and the composite weed killer herbicide of fluroxypyr, the applicant finds by retrieval, though in application number is 200710023339.3 application for a patent for invention Publication Specification, specifically disclose the re-compounded binary herbicide of nicosulfuron and fluroxypyr, but the part that relates to herbicidal effect in the prior art document does not specifically provide the concrete proportioning of used mixture herbicide, the consumption of used contrast agents nicosulfuron and fluroxypyr is not provided yet, therefore can not confirms whether to have between two active components synergistic effect and in which kind of proportioning interval, have synergistic effect by its result of the test; In addition, the applicant further discovers, the complex weedicide formulation that is provided in the prior art document is a wetting powder, and when the applicant is processed into the oil-suspending agent formulation with the binary built Herbicidal combinations of nicosulfuron and fluroxypyr, compare the application effect that wetting powder can improve this weed killer herbicide greatly, and this Herbicidal combinations to be higher than activity of weeding to piemarker to the activity of weeding of barnyard grass grass.Based on above discovery, the applicant has finished the present invention.
Summary of the invention
One of purpose of the present invention is to provide the oil-suspending agent that a kind of mixed ratio is reasonable, control efficiency is good Herbicidal combinations, and its active component is by the nicosulfuron of synergy effective dose and fluroxypyr is composite forms.
Another object of the present invention is to provide above-mentioned oil-suspending agent Herbicidal combinations is used for control of maize field annual weed, the especially purposes of barnyard grass grass.
Technical scheme of the present invention is as described below:
A kind of oil-suspending agent Herbicidal combinations is characterized in that this oil-suspending agent Herbicidal combinations is as its herbicidal active component with the effective nicosulfuron of synergy and fluroxypyr.
Wherein, in this oil-suspending agent Herbicidal combinations the weight ratio of nicosulfuron and fluroxypyr be preferably 1: 1～1: 4, more preferably 1: 1.5～2, most preferably be 1: 2.
Wherein, total amount of application of nicosulfuron and fluroxypyr is preferably 100～120g/hm in this oil-suspending agent Herbicidal combinations
2
Oil-suspending agent Herbicidal combinations of the present invention also contains wetting agent, dispersant, thickener and vegetable oil except that containing above-mentioned Herbicidal combinations, and can choose auxiliary agents such as containing defoamer, antifreeze, antioxidant wantonly.
Oil-suspending agent of the present invention can prepare in a known manner, for example by reactive compound and wetting agent, dispersant, thickener are joined in the vegetable oil, and the optional auxiliary agents such as defoamer, antifreeze, oxidant that add, stir then.
Cornfield weeding composition of the present invention can be mixed with the floating agent of pesticide oil suspension according to the conventional production process of this area.Its administration form depends on specific application; In all cases, must guarantee that their dispersion is trickle as much as possible and even.
Dispersant or wetting agent; Can be nonionic or ionic.For example, lauryl sodium sulfate, Teepol, neopelex, polyoxyethylene fatty acid ester, polyoxyethylene aliphatic alcohol ether, polyoxyethylene fatty amine etc.Material as dispersant and wetting agent has: sodium lignin sulfonate, calcium lignosulfonate, alkylol polyoxyethylene groups ether sodium sulfate, octylphenol polyethylene oxyethylene group ether sulfate, sodium alkyl sulfonate, neopelex etc.
Thickener can be for example carbonyl methylol, polyvinyl alcohol or the polyvinyl acetate that synthesizes, or natural water-soluble polymer, for example xanthans, gelatin, gum Arabic, phenolic resins, shellac, carboxymethyl cellulose and sodium alginate etc.
Defoamer is: bubble enemy, silicone, C
8-10Fatty alcohol, phosphoric acid ester, C
10-20Saturated fat acids (as capric acid) and acid amides etc.
Antifreeze is a calcium chloride etc.
The present composition has the following advantages: the one, and composition shows fabulous synergistic effect in certain ratio range, mixed composition has obviously improved herbicidal effect than its single agent, thereby reduced application dosage, when reducing drug cost, reduced influence environment.The 2nd, herbicidal spectrum is wide, and a kind of medicament can be prevented and treated multiple weeds simultaneously; The present composition has good preventive and therapeutic effect to the corn field annual weed.
Embodiment:
The invention will be further described below in conjunction with embodiment, but it only is an illustration, and by no means scope of the present invention is construed as limiting.In an embodiment, except as otherwise noted, the percentage composition of each component all is meant weight percentage.
1. preparation embodiment
1.1 the preparation of 12% oil-suspending agent
2. biological Examples: the composite Toxicity Determination test of nicosulfuron fluroxypyr (entrusting plant protection institute of Shandong Agricultural University to bear) to the corn annual weed
2.1 for the examination target
Barnyard grass grass (Echinochloa crusgalli), piemarker (Abutilon theophrasti) were picked up from suburb, Tai, Shandong Province corn field in 2010.
Above-mentioned weeds adopt pot-culture method to cultivate.With 180 * 140mm plastics nutritive cube, put in enamel tray, interior dress is adopted back through the air-dry topsoil that sieves (4/5) from the farmland, the soil moisture initial stage all is controlled at 20%, select the weed seed of full seed homogeneous, with 25 ℃ of emerge in worm water 6 hours, vernalization in 28 ℃ of biochemical incubators (dark), the weed seed that has just showed money or valuables one carries unintentionally evenly is placed in soil surface, then earthing 0.7cm.Chemicals treatment is placed in the controlled greenhouse by solar heat and cultivates, and regularly adds a certain amount of water in enamel tray, keeps ground moistening.
2.2 condition of culture
In controlled greenhouse by solar heat, carry out 19～27 ℃ of temperature, natural lighting, relative moisture 62%～81%.
Soil types is a loam, and the content of organic matter is 1.83%, pH=7.1, alkali-hydrolyzable nitrogen 85.2mg/kg, rapid available phosphorus 38.3mg/kg, available potassium 83.0mg/kg.
2.3 instrument and equipment
3WT-II type spray tower, Beijing Lei Qianna green technology Development Co., Ltd.GA110 type ten thousand/electronic balance (Germany); ZDR2000 intelligent data recorder (the big Instr Ltd. in pool, Hangzhou); SPX type intelligence biochemical incubator (south of the River, Ningbo instrument plant).
2.4 experimental scheme
2.4.1 test medicine
The former medicine of 95.0% nicosulfuron (nicosulfuron) (Shandong Jingbo Agrochemicals Ltd.);
The former medicine of 95.3% fluroxypyr (fluroxypyr) (the green despot's chemical inc in Shandong).
2.4.2 other reagent
Because nicosulfuron is difficult to dissolving in common solvent, therefore, two kinds of former medicine solvents all adopt dimethyl formamide (DMF), and are with the dilution of the content 0.1% emulsifier T-80 aqueous solution, existing with existing dilution.
2.5 test is handled
2.5.1 dosage setting
On the basis of indoor preliminary survey, nicosulfuron is made as the different combinations of using with respectively with the consumption of fluroxypyr, see Table 1, design 9 groups altogether.As blank, carry out indoor bioassay with the water that do not contain medicament, contain same solvent and emulsifier respectively.
2.5.2 test repeats
Every processing repeats 4 times, each every processing 3 basins, and 20 of every basin sowing weed seeds, every processing is totally 60 strains.
2.6 processing mode
2.6.1 processing time and number of times
Test shared medicine 1 time.Treat 1 heart stage of barnyard grass grass 2 leaves, 2 leaf periods of piemarker, thinning keeps weeds 15 strains in every basin, and every processing keeps 45 strains, continues to be cultured to 1 heart stage of barnyard grass grass 4 leaves then, 4 leaf periods of piemarker are handled.
2.6.2 use apparatus and administrated method
Cultured examination material evenly is placed in area 0.3m
2Platform on, with the quantitative spray tower cauline leaf spraying of 3WT-II type, spouting liquid is by 450 kilograms/hectare.Atomisation pressure 0.3MPa.After treating that whole soups have sprayed, close gas check valve, after 30 seconds, open the spraying pyller, take out nutritive cube.Open air valve then, spray clear water 50ml cleans sparge pipe.
2.7 test method
Adopt pot-culture method.Weeds are cultivated and see 2.1, carry out with reference to " agricultural chemicals indoor bioassay test rule weed killer herbicide, the 4th, 7 parts ".Administrated method is seen 3.3.2, adopts the cauline leaf facture.
2.8 data survey and statistical analysis
2.8.1 investigation method
Adopt the absolute number investigation method, cut off the whole strain seedling of survival weeds along soil surface, with analytical balance weighing weeds fresh weight with blade.For dead weeds, be zero by fresh weight.
2.8.2 control time and number of times
Handle investigation in back 20 days, investigate altogether 1 time.
2.9 interpretation of result and discussion
Table 1 nicosulfuron, fluroxypyr are used the synergy effect (Gowing method) to weeds with
Result of the test shows that nicosulfuron and fluroxypyr are used the inhibiting rate E-E of each combined treatment to 2 kinds of weeds with
0Value be on the occasion of, show certain synergistic effect.Each combination is to the E-E of barnyard grass grass
0Value is higher than the E-E to piemarker
0Value, wherein the combination of 40+60 and 40+80 is to the inhibiting rate E-E of barnyard grass grass
0Value is greater than 10%, and the combination of 40+80 is to the inhibiting rate E-E of piemarker
0Value illustrates that greater than 10% the combination of 40+80 has obvious synergistic effect.
In 9 proportionings, each combination is all lower to barnyard grass grass, piemarker preventive effect under low consumption.Comprehensively to the whole preventive effect of 2 kinds of weeds, nicosulfuron+fluroxypyr consumption is 40+60～80g/hm
2The combination preventive effect more satisfactory.From the considerations such as balance of cost, preventive effect, careless extremely spectrum and prescription, it is comparatively suitable that nicosulfuron and fluroxypyr are used with near 1: 1.5～2 scopes reach.
3. formulation screening test (entrust Shandong Agricultural University plant protection institute bear)
3.1 experimental scheme
3.1.1 test medicine
The former medicine of 95.0% nicosulfuron (nicosulfuron) (Shandong Jingbo Agrochemicals Ltd.);
The former medicine of 95.3% fluroxypyr (fluroxypyr) (the green despot's chemical inc in Shandong).
3.2 test is handled
3.2.1 dosage setting
On the basis of indoor preliminary survey, the nicosulfuron of different dosage form (according to the oil-suspending agent of the embodiment of the present application preparation and the wetting powder of aforementioned documents method preparation) is made as the different combinations of using with respectively with the consumption of fluroxypyr, see Table 1, design 9 groups altogether.As blank, carry out indoor bioassay with the water that do not contain medicament, contain same solvent and emulsifier respectively.
3.2.2 test repeats
Every processing repeats 4 times, each every processing 3 basins, and 20 of every basin sowing weed seeds, every processing is totally 60 strains.
3.3 processing mode
3.3.1 processing time and number of times
Test shared medicine 1 time.Treat 1 heart stage of barnyard grass grass 2 leaves, 2 leaf periods of piemarker, thinning keeps weeds 15 strains in every basin, and every processing keeps 45 strains, continues to be cultured to 1 heart stage of barnyard grass grass 4 leaves then, 4 leaf periods of piemarker are handled.
3.3.2 use apparatus and administrated method
Cultured examination material evenly is placed in area 0.3m
2Platform on, with the quantitative spray tower cauline leaf spraying of 3WT-II type, spouting liquid is by 450 kilograms/hectare.Atomisation pressure 0.3MPa.After treating that whole soups have sprayed, close gas check valve, after 30 seconds, open the spraying pyller, take out nutritive cube.Open air valve then, spray clear water 50ml cleans sparge pipe.
3.4 test method
Adopt pot-culture method.Weeds are cultivated and see 2.1, carry out with reference to " agricultural chemicals indoor bioassay test rule weed killer herbicide, the 4th, 7 parts ".Administrated method is seen 3.3.2, adopts the cauline leaf facture.
3.5 data survey and statistical analysis
3.5.1 investigation method
Adopt the absolute number investigation method, cut off the whole strain seedling of survival weeds along soil surface, with analytical balance weighing weeds fresh weight with blade.For dead weeds, be zero by fresh weight.
3.5.2 control time and number of times
Handle investigation in back 20 days, investigate altogether 1 time.
3.6 interpretation of result and discussion
6.1 evaluating drug
After the chemicals treatment 6 days, two kinds of formulations all begin to occur symptom.Growth is suppressed, and the lobus cardiacus of the blade of being injured curls and the part chlorosis, and part Lao Ye also begins to curl, and the blade edge chlorosis, and whole strain is withered dead after 20 days.
Can to get conclusion as follows for data from table 2,3: the reveal any symptoms at first that is mixed of oil suspending agent type 40+80, and also death is also very thorough, and the final lethality of barnyard grass grass and piemarker is respectively 98.8% and 98.1%, and the fresh weight inhibiting rate is respectively 95.7% and 96.5%.And wettable powder has been compared a certain distance with the oil suspending agent type.Therefore, no matter from performance speed, or on the weeding completeness, nicosulfuron and fluroxypyr be mixed for the oil suspending agent type should be best formulation at present.
Table 2 nicosulfuron and fluroxypyr are used the determination of activity result of different dosage form to the barnyard grass grass with
Table 3 nicosulfuron and fluroxypyr are used the determination of activity result of different dosage form to piemarker with
Claims (9)
1. oil-suspending agent Herbicidal combinations is characterized in that its herbicidal active component is made up of the nicosulfuron and the fluroxypyr of synergy effective dose.
2. according to the oil-suspending agent Herbicidal combinations of claim 1, it is characterized in that the weight ratio of nicosulfuron and fluroxypyr is preferably 1: 1～1: 4.
3. according to the oil-suspending agent Herbicidal combinations of claim 1～2, it is characterized in that the weight ratio of nicosulfuron and fluroxypyr is preferably 1: 1.5～1: 2.
4. according to the oil-suspending agent Herbicidal combinations of claim 1～3, it is characterized in that the weight ratio of nicosulfuron and fluroxypyr is preferably 1: 2.
5. according to the oil-suspending agent Herbicidal combinations of claim 1～4, it is characterized in that the amount of application of nicosulfuron and fluroxypyr is preferably 100～120g/hm
2
6. according to the oil-suspending agent Herbicidal combinations of claim 1～5, it is characterized in that except that above-mentioned herbicidal active component, also containing in this oil-suspending agent Herbicidal combinations wetting agent, dispersant, thickener and vegetable oil.
7. according to the oil-suspending agent Herbicidal combinations of claim 6, it is characterized in that the also optional auxiliary agents such as defoamer, antifreeze or antioxidant that contain in this oil-suspending agent Herbicidal combinations.
8. according to the described oil-suspending agent Herbicidal combinations of arbitrary claim of claim 1～7, it is characterized in that this oil-suspending agent Herbicidal combinations contains: nicosulfuron 4wt%, fluroxypyr 8wt%, wetting agent neopelex 9wt%, dispersant calcium lignosulfonate 9wt%, xanthans 6wt%, surplus is a corn oil.
9. the purposes that the described oil-suspending agent Herbicidal combinations of arbitrary claim of claim 1～7 is used for control of maize field barnyard grass grass.
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| CN103783063A (en) * | 2014-02-27 | 2014-05-14 | 江苏省激素研究所股份有限公司 | Herbicide composition for removing weeds from wheat fields |
| CN104542662A (en) * | 2014-12-16 | 2015-04-29 | 广东中迅农科股份有限公司 | Weeding composition containing amicarbazone, fluroxypyr and nicosulfuron |
| CN107094787A (en) * | 2017-06-29 | 2017-08-29 | 江苏苏滨生物农化有限公司 | A kind of Herbicidal combinations containing nicosulfuron |
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| CN101066056A (en) * | 2007-06-06 | 2007-11-07 | 赵邦斌 | Re-compounded herbicide of nicosulfuron and fluroxypyr |
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| CN101066056A (en) * | 2007-06-06 | 2007-11-07 | 赵邦斌 | Re-compounded herbicide of nicosulfuron and fluroxypyr |
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| CN103783063A (en) * | 2014-02-27 | 2014-05-14 | 江苏省激素研究所股份有限公司 | Herbicide composition for removing weeds from wheat fields |
| CN104542662A (en) * | 2014-12-16 | 2015-04-29 | 广东中迅农科股份有限公司 | Weeding composition containing amicarbazone, fluroxypyr and nicosulfuron |
| CN107094787A (en) * | 2017-06-29 | 2017-08-29 | 江苏苏滨生物农化有限公司 | A kind of Herbicidal combinations containing nicosulfuron |
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