CN111771894A - Herbicide composition containing penoxsulam and application thereof - Google Patents
Herbicide composition containing penoxsulam and application thereof Download PDFInfo
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- CN111771894A CN111771894A CN202010749992.3A CN202010749992A CN111771894A CN 111771894 A CN111771894 A CN 111771894A CN 202010749992 A CN202010749992 A CN 202010749992A CN 111771894 A CN111771894 A CN 111771894A
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- Prior art keywords
- penoxsulam
- herbicide composition
- active
- active ingredient
- active component
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Links
- 239000005592 Penoxsulam Substances 0.000 title claims abstract description 71
- SYJGKVOENHZYMQ-UHFFFAOYSA-N Penoxsulam Chemical compound N1=C2C(OC)=CN=C(OC)N2N=C1NS(=O)(=O)C1=C(OCC(F)F)C=CC=C1C(F)(F)F SYJGKVOENHZYMQ-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 66
- 239000004009 herbicide Substances 0.000 title claims abstract description 63
- 239000000203 mixture Substances 0.000 title claims abstract description 51
- 239000004480 active ingredient Substances 0.000 claims abstract description 39
- 150000001875 compounds Chemical group 0.000 claims abstract description 37
- 241000196324 Embryophyta Species 0.000 claims abstract description 35
- 150000003839 salts Chemical class 0.000 claims abstract description 14
- 240000007594 Oryza sativa Species 0.000 claims abstract description 9
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 9
- 235000009566 rice Nutrition 0.000 claims abstract description 9
- 239000010902 straw Substances 0.000 claims abstract description 5
- 244000058871 Echinochloa crus-galli Species 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims description 18
- 239000012752 auxiliary agent Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- -1 2, 2-difluoroethoxy Chemical group 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 10
- 239000002585 base Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 239000003337 fertilizer Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007962 solid dispersion Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- KHBQMWCZKVMBLN-UHFFFAOYSA-N Benzenesulfonamide Chemical compound NS(=O)(=O)C1=CC=CC=C1 KHBQMWCZKVMBLN-UHFFFAOYSA-N 0.000 claims description 2
- 241000209046 Pennisetum Species 0.000 claims description 2
- 239000002671 adjuvant Substances 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 239000003995 emulsifying agent Substances 0.000 claims description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims 4
- 241000380130 Ehrharta erecta Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 44
- 238000009333 weeding Methods 0.000 abstract description 9
- 230000002195 synergetic effect Effects 0.000 abstract description 8
- 244000062720 Pennisetum compressum Species 0.000 abstract description 4
- 241000192043 Echinochloa Species 0.000 description 29
- 238000004260 weight control Methods 0.000 description 11
- 230000001276 controlling effect Effects 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 235000019198 oils Nutrition 0.000 description 9
- 238000002156 mixing Methods 0.000 description 8
- 239000000375 suspending agent Substances 0.000 description 8
- 239000000839 emulsion Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000001502 supplementing effect Effects 0.000 description 5
- 239000004562 water dispersible granule Substances 0.000 description 5
- 229920003171 Poly (ethylene oxide) Chemical group 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 241000400644 Echinochloa oryzicola Species 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000004495 emulsifiable concentrate Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000004563 wettable powder Substances 0.000 description 3
- ARIWANIATODDMH-AWEZNQCLSA-N 1-lauroyl-sn-glycerol Chemical compound CCCCCCCCCCCC(=O)OC[C@@H](O)CO ARIWANIATODDMH-AWEZNQCLSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- ARIWANIATODDMH-UHFFFAOYSA-N Lauric acid monoglyceride Natural products CCCCCCCCCCCC(=O)OCC(O)CO ARIWANIATODDMH-UHFFFAOYSA-N 0.000 description 2
- 240000000178 Monochoria vaginalis Species 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical group [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 2
- 239000002552 dosage form Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004530 micro-emulsion Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 2
- 229920005552 sodium lignosulfonate Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XEGMDUOAESTQCC-UHFFFAOYSA-N 1-(naphthalen-1-ylmethyl)naphthalene;sodium Chemical compound [Na].C1=CC=C2C(CC=3C4=CC=CC=C4C=CC=3)=CC=CC2=C1 XEGMDUOAESTQCC-UHFFFAOYSA-N 0.000 description 1
- 241000031023 Amana edulis Species 0.000 description 1
- 241000143476 Bidens Species 0.000 description 1
- 240000004082 Bidens tripartita Species 0.000 description 1
- 235000000621 Bidens tripartita Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 244000152970 Digitaria sanguinalis Species 0.000 description 1
- 235000010823 Digitaria sanguinalis Nutrition 0.000 description 1
- 244000286838 Eclipta prostrata Species 0.000 description 1
- 235000003990 Monochoria hastata Nutrition 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 235000011999 Panicum crusgalli Nutrition 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 244000184734 Pyrus japonica Species 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 239000007798 antifreeze agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Substances OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000003630 growth substance Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005645 nematicide Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000012053 oil suspension Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
- A01N43/42—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings condensed with carbocyclic rings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a herbicide composition containing penoxsulam, which comprises an active component; the active component comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is penoxsulam (penoxsulam); the active component B is a compound with a structure shown in a formula I and pharmaceutically acceptable salt thereof;
Description
Technical Field
The invention belongs to the field of agricultural herbicides, and relates to a herbicide composition containing penoxsulam and application thereof.
Background
Barnyard grass is one of the most harmful malignant weeds in the world, and the occurrence of the barnyard grass in a paddy field can cause serious yield reduction and even top-off. The prevention and control of the barnyard grass in the paddy field depends on a chemical herbicide, wherein penoxsulam has special effect on the barnyard grass, and the herbicide has the characteristics of wide weed control spectrum, high efficiency, long lasting period, low environmental pollution risk, long applicable time period, high safety on people, livestock and rice and the like. However, since penoxsulam has been used in China for many years, barnyard grass has developed severe resistance. In 2017, 48 barnyard grass populations are collected in Jiangsu, Anhui, Shanghai, Heilongjiang, Ningxia, Hunan, Liaoning and other places to be subjected to resistance measurement, and the results show that 5 populations of penoxsulam which is a common post-emergence herbicide for rice show extremely high resistance, and the resistance times are up to 218 times of 101-; 29 populations are high-resistance, and the resistance times are 10-100 times; the 4 populations are resistant, and the resistance times are 6-10 times. Therefore, a herbicide capable of controlling penoxsulam-resistant barnyard grass is urgently needed.
Chinese patent 201810139901.7 discloses a compound and its herbicidal activity (structural formula is shown below), and the patent scheme discloses that the compound and its pharmaceutically acceptable salt have good control effect on penoxsulam resistant barnyard grass, but the patent scheme does not mention the situation of mixing with other herbicides.
Further activity studies of the above-mentioned compounds and pharmaceutically acceptable salts thereof have revealed that the compounds having the above-mentioned structures are excellent in controlling penoxsulam-resistant barnyard grass, but very poor in controlling other barnyard grass and broadleaf weeds. Secondly, although it has a good effect of controlling the resistant barnyard grass of penoxsulam, it is expensive due to its large amount. Therefore, the compounds represented by the above structures are still insufficient in weed control performance, and it is difficult to achieve an ideal weed control efficacy when used as they are.
Disclosure of Invention
The invention aims to solve the technical problem of providing a herbicide composition containing penoxsulam, which has good control effect on resistant barnyard grass of the penoxsulam and has good control effect on almost all barnyard grass and broadleaf weeds in a paddy field.
The technical scheme of the invention is as follows:
a herbicide composition containing penoxsulam, which comprises an active component;
the active component comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is penoxsulam; the penoxsulam is 2- (2, 2-difluoroethoxy) -N- (5, 8-dimethoxy [1,2,4] triazolo [1,5-c ] pyrimidin-2-yl) -6-trifluoromethyl) benzenesulfonamide and pharmaceutically acceptable salts thereof;
the active component B is a compound with a structure shown in a formula I and pharmaceutically acceptable salt thereof;
wherein the mass ratio of the active component A to the active component B is 1: 1-40.
Wherein, the pharmaceutically acceptable salt is formed by the corresponding compound and amines, alkali metal and alkaline earth metal bases or quaternary ammonium salt bases respectively.
According to a preferred embodiment of the present invention, wherein: the total application amount of the active component is 90-300g a.i./hm2And the mass ratio of the active component A to the active component B is 1: 2-20. g a.i./hm2I.e. grams of active ingredient per hectare.
According to a preferred embodiment of the present invention, wherein: the mass ratio of the active component A to the active component B is 1: 2-20; more preferablyIs 1: 5-10. Mixing at the ratio when the total application amount of active components is 90-300g a.i./hm2In the process, the visual control effect on the pennisetum stolonifer is 85-95%, the visual control effect on the rice straw is 80-100%, the visual control effect on the pennisetum alopecuroides is 90-100%, and the total control effect is 90-98%.
According to a preferred embodiment of the present invention, wherein: the herbicide composition further comprises an adjuvant; the auxiliary agents comprise other known substances which are beneficial to the stability and the efficacy exertion of the active ingredients in the preparation, such as a surfactant, a wetting agent, a dispersing agent, an emulsifying agent, a quick penetration agent, a solvent, a filler and the like, and can be various ingredients which are commonly used or allowed to be used in the pesticide preparation. For example, the active ingredient may be formulated into emulsifiable concentrates, aqueous solutions, concentrated emulsions, microemulsions, wettable powders, aqueous suspensions, oil suspensions, water dispersible granules, or soluble powders (granules), and the like. The surfactant is sodium dodecyl sulfate, secondary alkyl sodium sulfate, sodium dodecyl benzene sulfonate, polyoxyethylene fatty acid ester, polyoxyethylene fatty alcohol ether, polyoxyethylene fatty ammonia, ethoxylated castor oil, fatty acid polyglycol ester, alkylphenol polyoxyethylene, fatty alcohol polyoxyethylene ether, etc.
According to a preferred embodiment of the present invention, wherein: the total content of the active components in the herbicide composition is 0.5-95.0 wt%.
According to a preferred embodiment of the present invention, wherein: the herbicide composition is a solid dispersion preparation or a liquid dispersion preparation. The liquid dispersion preparation comprises one or more of an emulsifiable concentrate, a water dispersible granule, a concentrated emulsion, a microemulsion, a wettable powder, a water suspending agent and an oil suspending agent. The solid dispersion preparation is soluble powder/soluble granules and the like.
According to a preferred embodiment of the present invention, wherein: the herbicide composition is a premixed preparation or a two-component single-packaging preparation; the active ingredient A and the active ingredient B in the premixed preparation are premixed according to the mass proportion and diluted to a preset concentration by adding water/soil/fertilizer before use; the double-component individually packaged preparation is packaged according to the mass ratio, is automatically mixed before use, and is diluted to a preset concentration by adding water/soil/fertilizer before use.
The invention also relates to application of the herbicide composition containing penoxsulam in preventing and removing weeds in paddy fields, wherein the weeds comprise annual and perennial grassy and broadleaf weeds in the paddy fields, especially weeds such as barnyard grass, large crabgrass, bidens tripartite, eclipta prostrata, Aeschynia indica, monochoria japonica, monochoria vaginalis, edible tulip and the like, and the advantages of the herbicide composition containing penoxsulam in preventing and controlling resistant barnyard grass, rice barnyard grass and pennyard grass of penoxsulam are obvious.
The herbicidal compositions according to the invention can be used in admixture with other compounds having herbicidal, insecticidal or fungicidal properties, in particular in soil-treating herbicides, and also in admixture with nematicides, safeners, growth regulators, plant nutrients or soil conditioners.
The technical effects of the herbicide composition containing penoxsulam of the invention comprise:
compared with the prior art, the compound with the structure shown in the formula I and the pharmaceutically acceptable salt thereof are combined with penoxsulam according to a certain proportion for the first time, so that unexpected technical effects are obtained, the two weeding active ingredients are complementary in advantages, and obvious synergism is obtained on the basis of the original weeding spectrum. Therefore, the compound with the structure shown in the formula I and the pharmaceutically acceptable salt thereof and the penoxsulam have a synergistic effect under the combined use condition, and have the effect of synergistic gain.
After the compound with the structure shown in the formula I and penoxsulam are mixed, the advantages of the agents can be complemented, the synergistic effect is obvious, the overall control effect is obviously improved, the purpose of expanding the weed control spectrum is achieved, the cost can be reduced, the application frequency is reduced, and the labor amount is reduced.
Detailed Description
In order to make the technical effects of the present invention more clearly understood, the following description is given with reference to specific embodiments of the present invention. However, it is to be noted that the herbicide composition based on the idea of the present invention can be prepared in any one of the dosage forms suitable for agricultural use by a known method, and is not limited to the type shown in the following examples.
Example 1
The herbicide composition of the embodiment is wettable powder, wherein the total content of active components is 61.5 wt%, and the content of penoxsulam in the herbicide composition is 60 wt%, wherein the penoxsulam is 1.5 wt%, and the active component B is a compound with a structure shown in a formula I.
The used auxiliary agents comprise 2.0 wt% of sodium dodecyl benzene sulfonate, 5 wt% of white carbon black, 10 wt% of sodium lignosulfonate and diatomite which is used for complementing the total weight to 100 wt%.
The preparation method comprises the following steps: the penoxsulam and the compound B as the effective components, the auxiliary agent and the filler are fully mixed according to the formula and are crushed by a superfine crusher to prepare the corresponding wettable powder pesticide.
Example 2
The herbicide composition of the embodiment is a water dispersible granule, wherein the total content of active ingredients is 42 wt%, and the content of penoxsulam is 2 wt% and the active ingredient B is a compound with a structure shown in a formula I and is 40 wt%.
The used auxiliary agents are: 12 wt% of methylene dinaphthalene sodium sulfonate formaldehyde condensate, 5 wt% of citric acid, 15 wt% of soluble starch and finally gypsum for supplementing to 100 wt%.
The preparation method comprises the following steps: mixing and crushing the active components, the auxiliary agent and the like according to the formula, and performing spray drying or boiling drying to obtain water-dispersible granules or adding water for kneading, and then adding the water-dispersible granules into a granulator with a screen of a certain specification for granulation. Then drying and screening (according to the range of a screen) to obtain a granular product.
Example 3
The herbicide composition of the embodiment is an oil suspending agent, wherein the total content of active ingredients is 33 wt%, and the content of penoxsulam in the herbicide composition is 30 wt%, and the active ingredient B is a compound with a structure shown in formula I.
The used auxiliary agents are: 5 wt% of fatty alcohol-polyoxyethylene ether, 10 wt% of glycerol monolaurate polyoxyethylene ether, 10 wt% of a quick penetration agent T10wt, and finally, supplementing to 100 wt% with vegetable oil.
The preparation method comprises the following steps: the active components and the auxiliary agents are uniformly mixed according to the formula, and then are added into a sanding kettle for grinding, so that the corresponding oil suspending agent product can be prepared.
Example 4
The herbicide composition of the embodiment is an emulsifiable concentrate, wherein the total content of active components is 6 wt%, and the content of penoxsulam in the herbicide composition is 5 wt%, wherein the penoxsulam is 1 wt%, and the active component B is a compound with a structure shown in formula I.
The used auxiliary agents are: 10 wt% of N, N-dimethylformamide, 10 wt% of fatty alcohol-polyoxyethylene ether, 10 wt% of glycerol monolaurate polyoxyethylene ether, 10 wt% of a fast penetration agent T10wt, and finally, the solvent oil is used for supplementing to 100 wt%.
The preparation method comprises the following steps: the active components and the auxiliary agents are mixed according to the formula, and are dissolved into a uniform oil phase to prepare a corresponding missible oil product.
Example 5
The herbicide composition of the embodiment is an aqueous emulsion, wherein the total content of active ingredients is 18 wt%, and the content of penoxsulam in the aqueous emulsion is 12 wt%, and the active ingredient B is a compound with a structure shown in formula I.
The used auxiliary agents are: 5 wt% of N-methyl pyrrolidone, 0.8 wt% of polyvinyl alcohol, 5 wt% of sorbitan fatty acid ester polyoxyethylene ether, 2.5 wt% of alkyl-diethylene glycol ether-sodium sulfonate, 22012 wt% of agricultural emulsion, 5 wt% of glycol and finally water for supplementing to 100 wt%.
The preparation method comprises the following steps: mixing the active component and the auxiliary agent according to the formula to dissolve the active component and the auxiliary agent into a uniform oil phase. Mixing water and antifreeze agent to obtain uniform water phase. And adding the water phase into the oil phase or adding the oil phase into the water phase under high-speed stirring to form the aqueous emulsion with good dispersibility.
Example 6
The herbicide composition of the embodiment is a suspending agent, wherein the total content of active ingredients is 20 wt%, and the content of penoxsulam in the suspending agent is 10 wt%, and the active ingredient B is a compound with a structure shown in a formula I in the suspending agent.
The used auxiliary agents are: 5 wt% of sodium lignosulphonate, 0.3 wt% of white carbon black, 22015 wt% of agricultural emulsion, 8 wt% of glycerol, a little silicone and water for supplementing to 100 wt%.
The preparation method comprises the following steps: mixing the active components and the auxiliary agent according to the formula, and sanding the mixture for 2 to 4 hours by a sand mill to ensure that the average particle size of the mixture is less than 5 microns, thus preparing a corresponding suspending agent product.
Determination of herbicidal Effect
The combined herbicide compositions of examples 1-6, penoxsulam herbicide alone, and compound herbicide of formula I alone were tested for herbicidal efficacy as follows:
under greenhouse conditions, the determination was carried out by means of potting. Specifically, a proper amount of sieving soil is filled in each disposable plastic flowerpot with the diameter of 10cm, the same amount of weed seeds are sown, 15-20 seeds (the seeds are the penoxsulam-resistant barnyard grass which is collected from Nanling county of Anhui province, and the penoxsulam (45 ga.i./hm) is used in the 3-5 leaf stage of the barnyard grass in the paddy field2) And (4) treating, namely collecting barnyard grass seeds after autumn, and performing resistance identification by a plant protection institute of a Hunan farm institute to obtain the barnyard grass resistant to penoxsulam. ) And covering soil for 0.5-1cm, and flattening. The flowerpot was placed in a stainless steel square dish to allow it to naturally absorb water from the bottom until the soil was saturated. Culturing the test material in a greenhouse, spraying stem and leaf when the barnyard grass is in the 4-5 leaf stage, repeating the treatment for 3 times, and setting a blank control. After 6 hours of treatment, the treated weeds are placed in a greenhouse and are managed according to the convention, observation and recording are carried out, the fresh weight of the overground part of each treated weed is investigated 30 days later, and the fresh weight control effect (%) of each treatment is calculated.
When calculating the fresh weight control effect, the overground green part of each treated (flowerpot) weed needs to be respectively cut off to weigh the weight of the weed, and then the fresh weight control effect percent of each treatment is calculated according to the following formula.
The control of the herbicidal compositions of examples 1-6, penoxsulam herbicide alone, and compound herbicide of formula I alone against penoxsulam were calculated according to the above method, respectively. And the fresh weight control effect is taken as the actually measured control effect value and recorded as table 1.
TABLE 1. Echinochloa-nystoides control efficacy of different herbicides against penoxsulam
In table 1: dosage (ga.i./hm)2) The amount of herbicidal active ingredient used per hectare is indicated. The actually measured control effect percent E is calculated by the fresh weight control effect calculation formula.
Theoretical control Effect% E0The theory and basis of calculation are as follows: the theoretical efficacy of the combined effect of 2 herbicides was evaluated by the Gowing method. The blending effect calculation formula is as follows: e0X + Y-XY/100, wherein: x represents the weed control effect of the weeding active ingredient A when the dosage is P; y represents the weed control effect of the weeding active ingredient B when the dosage is Q; e0Represents the theoretical control effect of the herbicide (A + B) when the dosage of the herbicide is (P + Q).
According to the Gowing method, when E-E0>When 0, the synergistic effect is generated between the two mixed herbicides, namely the synergistic effect is generated by mixing the two herbicidal active ingredients; when E-E0When the ratio is 0, the formulated herbicide produces additive effect, and when the ratio is E-E0<When 0, the mixed herbicide generates antagonism.
As is evident from Table 1, penoxsulam is administered at a rate of 15g a.i./hm2In an amount of 15-600ga.i./hm with the compound of formula 12The dosage ranges of the compound are matched for use, so that the content of penoxsulam is as follows: when the mass ratio of the compound in the formula 1 is 1: 1-40, the actually measured control effect E of the compound on the resistant barnyard grass of penoxsulam is greater than the theoretical control effect E0And E-E0Minimum 10.5, maximum 20.3. Wherein, penoxsulam: when the mass ratio of the compound in the formula 1 is within a range of 1: 2-20, the mutual synergistic effect of the two components is more remarkable.
It can be concluded from this that, when the penoxsulam and the compound of formula 1 are used in combination as active ingredients of herbicides for weeding in the present invention examples 1 to 6, synergy is produced between the two herbicide active ingredients, i.e., the two herbicidal active ingredients produce a synergistic effect.
(II) determination of control Effect on Mixed weeds
The test method comprises the following steps: the equivalent and proper amount of screened loam is put into a disposable plastic flowerpot with the diameter of 20cm, quantitative weed seeds are sown, 15-20 grains (barnyard grass, rice straw and pennisetum alopecuroides which resist penoxsulam are sown in each pot), the soil is covered for 0.5-1cm, and then the flat pressing is carried out. The flowerpot was placed in a stainless steel square dish to allow it to naturally absorb water from the bottom until the soil was saturated. Culturing the test material in a greenhouse, performing stem and leaf spray treatment when the leaf period of Echinochloa crusgalli is 3-4 and the leaf period of Bidens tripartita is 4-6, repeating the treatment for 3 times, and setting blank control. After 6 hours of treatment, the mixture is placed in a greenhouse for conventional management, and observation and recording are carried out regularly. After 30 days, the fresh weight of the overground part of each treated weed is investigated, and the fresh weight control (%) is calculated, and the results are shown in table 2.
TABLE 2 Effect of composition examples on weed control results (% fresh weight control)
Note: the penoxsulam-resistant barnyard grass seed is collected from Nanling county of Anhui province, and the 3-5 leaf stage of barnyard grass in rice field is treated with penoxsulam (45 ga.i./hm)2) And (4) treating, namely collecting barnyard grass seeds after autumn, and performing resistance identification by a plant protection institute of a Hunan farm institute to obtain the barnyard grass resistant to penoxsulam.
The calculation method of the total fresh weight prevention effect comprises the following steps: adding the fresh weight of the overground part of each weed to be treated (flowerpot) to obtain the total weight, wherein the control effect calculation formula is as follows:
as is apparent from Table 2, penoxsulam alone was substantially ineffective against resistant barnyard grass, and the total controlling effect was only 60.8%, the controlling effect of the compound B (compound of formula I) alone was 30.6% against rice barnyard grass, and the total controlling effect was only 65.2%. The embodiment of the mixture of the penoxsulam and the compound of the formula I has better control effect on barnyard grass, rice straw and broadleaf weeds of the penoxsulam, the control effect of the embodiment of the composition on the weeds is over 80 percent, and the total control effect is over 85 percent. Therefore, the penoxsulam and the compound shown in the formula I are jointly used as herbicide active substances, so that the overall weeding effect can be obviously improved, the weeding spectrum is expanded, and the penoxsulam and the compound shown in the formula I have better practical values.
From examples 2 to 5, it can be seen that the total application rate of the active ingredient is from 90 to 300g a.i./hm2When the mixed herbicide is obtained, the mass ratio of the active ingredient A to the active ingredient B is 1: 2-20, the fresh weight control effect on penoxsulam-resistant barnyard grass is 85.8-95.2%, the fresh weight control effect on rice barnyard grass is 80.6-100%, the fresh weight control effect on pennisetum alopecuroides is 90.7-100%, and the total fresh weight control effect is 90.5-98.3%.
When the mass ratio of the active component A to the active component B is 1: 2-20, the application amount (converted into the amount of the active component) is 90-300g of a.i./hm2In particular, it is very effective in controlling annual and perennial grassy and broadleaf weeds in such paddy fields.
In addition, the herbicide composition based on the idea of the present invention can be prepared into any one of dosage forms suitable for agricultural use by a known method, and is not limited to the type listed below with examples. The compounds of formula I may also be replaced by pharmaceutically acceptable salts, such as salts formed from the compounds of formula (I) and amines, alkali and alkaline earth metal bases or quaternary ammonium bases.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A herbicide composition containing penoxsulam, which is characterized by comprising an active component;
the active component comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is penoxsulam; the penoxsulam is 2- (2, 2-difluoroethoxy) -N- (5, 8-dimethoxy [1,2,4] triazolo [1,5-c ] pyrimidin-2-yl) -6-trifluoromethyl) benzenesulfonamide and pharmaceutically acceptable salts thereof;
the active component B is a compound with a structure shown in a formula I and pharmaceutically acceptable salt thereof;
wherein the mass ratio of the active component A to the active component B is 1: 1-40.
2. The penoxsulam-containing herbicide composition as claimed in claim 1, wherein the pharmaceutically acceptable salt is a salt formed by the corresponding compound and amines, alkali metal and alkaline earth metal bases or quaternary ammonium salt bases.
3. The penoxsulam-containing herbicide composition as claimed in claim 1, wherein the total application rate of the active ingredients is 90-300ga.i./hm2And the mass ratio of the active component A to the active component B is 1: 2-20.
4. The penoxsulam-containing herbicide composition as claimed in claim 1 or 3, wherein the mass ratio of the active ingredient A to the active ingredient B is 1: 2-20; more preferably 1:5 to 10.
5. The penoxsulam-containing herbicide composition as claimed in claim 1, wherein the herbicide composition further comprises an adjuvant; the auxiliary agent comprises one or more of a quick penetration agent, a surfactant, a wetting agent, a dispersing agent, an emulsifying agent, a solvent and a filler.
6. The herbicide composition containing penoxsulam as claimed in claim 5, wherein the total content of said active ingredients in the herbicide composition is 0.5-95.0 wt%.
7. The penoxsulam-containing herbicide composition as claimed in claim 5, wherein the herbicide composition is a solid dispersion formulation or a liquid dispersion formulation.
8. The penoxsulam-containing herbicide composition as claimed in claim 5, wherein the herbicide composition is a pre-mixed formulation or a two-component individually packaged formulation; the active ingredient A and the active ingredient B in the premixed preparation are premixed according to the mass proportion and diluted to a preset concentration by adding water/soil/fertilizer before use; the double-component individually packaged preparation is packaged according to the mass ratio, is automatically mixed before use, and is diluted to a preset concentration by adding water/soil/fertilizer before use.
9. Use of a herbicidal composition containing penoxsulam according to any one of claims 1 to 8 for the control of weeds in paddy fields, wherein the weeds include annual and perennial grasses and broadleaf weeds in paddy fields.
10. Use according to claim 9, wherein the weeds comprise penoxsulam resistant barnyard grass, rice straw, pennisetum.
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| CN102249996A (en) * | 2011-05-10 | 2011-11-23 | 北京法盖银科技有限公司 | 2-(quinoline-8-yl)carbonyl-cyclohexane-1,3-dione compounds |
| CN106305739A (en) * | 2016-08-22 | 2017-01-11 | 浙江天丰生物科学有限公司 | Synergistic herbicidal composition |
| CN108191755A (en) * | 2018-02-11 | 2018-06-22 | 定远县嘉禾植物保护剂有限责任公司 | Herbicides compounds and its preparation method and application |
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| CN102249996A (en) * | 2011-05-10 | 2011-11-23 | 北京法盖银科技有限公司 | 2-(quinoline-8-yl)carbonyl-cyclohexane-1,3-dione compounds |
| CN106305739A (en) * | 2016-08-22 | 2017-01-11 | 浙江天丰生物科学有限公司 | Synergistic herbicidal composition |
| CN108191755A (en) * | 2018-02-11 | 2018-06-22 | 定远县嘉禾植物保护剂有限责任公司 | Herbicides compounds and its preparation method and application |
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