Herbicidal composition containing 4-methanesulfonylbenzamide compound and use thereof

Abstract

The present application relates to a herbicidal composition comprising at least one 4-methanesulfonylbenzamide compound of formula (I) with a sulfur-containing substituent at the 3-position, a stereoisomer thereof, an agriculturally acceptable salt thereof, and at least one other compound selected from a herbicidal active compound and / or a safener, and the use thereof.

Description

A herbicidal composition containing 4-methylsulfonylbenzamide compounds and its application Technical Field The present invention belongs to the field of agricultural herbicides, and particularly relates to a herbicidal composition comprising 4-methylsulfonylbenzamide compounds and application thereof. Background Art Chemical weed control is the most economical and effective means of controlling weeds in farmland. However, the long-term, continuous, high-dose use of a single chemical herbicide or one with a single mode of action can easily lead to problems such as weed resistance and the evolution of resistance. Rational compounding or blending of herbicide compounds offers advantages such as expanding the weed spectrum, improving control effectiveness, and slowing the onset and development of weed resistance and resistance, making it one of the most effective approaches to addressing these issues. However, there is still a need to develop herbicide combinations that are safe, have a broad weed control spectrum, produce synergistic effects, and address the problem of resistant weeds. Special combinations of herbicides with different mechanisms of action can increase the activity of the herbicide components through synergistic action. In this way, the amount of herbicide required to control weeds can be reduced. Some 4-methylsulfonylbenzamide compounds having the following formula (I) with herbicidal activity have been disclosed in patent CN117561242A, but there are no reports on the combination of such compounds with other herbicides or safeners. Summary of the Invention The purpose of the present invention is to provide a herbicidal composition comprising 4-methylsulfonylbenzamide compounds and application thereof. The technical solution of the present invention to solve the above technical problems is as follows: The present invention provides a herbicidal composition comprising a 4-methylsulfonylbenzamide compound having a sulfur-containing substituent at the 3-position of formula (I), a stereoisomer thereof, and an agriculturally acceptable salt thereof. The composition is characterized in that the composition comprises an active ingredient A and an active ingredient B, wherein the mass ratio of the active ingredient A to the active ingredient B is 1:500-500:1; or, the active ingredient A, the active ingredient B, and the active ingredient C; wherein the active ingredient A is at least one compound represented by formula (I), the active component B is at least one compound having herbicidal activity different from the compound represented by formula (I), a salt thereof, or a derivative thereof; and the active component C is at least one safener compound, a salt thereof, or a derivative thereof. The structure of active component A is as follows: in: Q stands for Q1, Q2, Q3, or Q4, as shown below: X stands for chlorine; R1 represents CH2CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH(CH3)CH2CH3, cyclopropylmethyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, CH2CF3, CH2CH=CH2, CH2CH2Cl, CH2CH(CH3)2, C(CH3)3, CH2CH2CH2CH2CH3, CH(CH3)CH2CH2CH3, CH2CH2CH(CH3)2, C(CH3)2CH2CH3, CH2CH(CH3)CH2CH3, CH2C6H5, CH(CH3)C6H5, CH2CF2H, CH2CFH2, CH(CH3)CH=CH2, (E)-CH2CH=CHCH3, (Z)-CH2CH=CHCH3, CH2C H=C(CH3)2, propargyl, but-3-en-2-yl, but-2-en-1-yl, CF2CF3, CF2CF2CF3, CH2CF2CF3, CH2CH2CF3, CH2CH2CF2H, CH2CH2CFH2, CF2CFHCF3, CH2CN, CH2CH2CN, CH(CH3)CN, CH(CH3)CH2CN, CHClCH3, (E)-CH2CH=CHCl, (Z)-CH2CH=CHCl, CH2CH=CCl2, (E)-CH2CH=CHOCH3, (Z)-CH2CH=CHOCH3, CH2CH2OCF3, CH2CH2OCF2H, CH2CH2OCFH2, CH2OCH3, CH2CF2H, CH2CFH2; R2 represents hydrogen, methyl, ethyl, CH(CH3)2, C 1～6 Alkyl OC 1～6 alkyl; Rx represents hydrogen, methyl, or ethyl; Ry represents: hydrogen, methyl, ethyl, isopropyl, cyclopropyl, CH2CH2CH3, CN; Rz represents hydrogen, methyl, ethyl, isopropyl, cyclopropyl, CH2CH2CH3, CF3, cyclobutyl, furan-2-yl, C6H5, 4-fluorophenyl, CH3CH2OCO; n represents 0, 1, or 2; When n represents 1, the sulfur atom connected thereto can be selected from R type or S type, or a mixture of the two, and the ratio of R to S in the mixture is 1:99 to 99:1. As a preferred embodiment of the present invention, Q stands for Q3, which is as follows: X stands for chlorine; R1 represents CH2CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH(CH3)CH2CH3, cyclopropylmethyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, CH2CF3, CH2CH2Cl, CH2CH(CH3)2, C(CH3)3, CH2CH2CH2CH2CH3, CH(CH3)CH2CH2CH3, CH2CH2CH(CH3)2, C(CH3)2CH2CH3, CH2CH(CH3)CH2CH3, CH2CF2H, CH2CFH2, CF2CF3, CF2CF2CF3, CH2CF2CF3, CH2CH2CF3, CH2CH2CF2H, CH2CH2CFH2, CF2CFHCF3, CHClCH3, CH2CF2H, CH2CFH2; R2 represents hydrogen, methyl, ethyl, CH(CH3)2; Rz represents hydrogen, methyl, ethyl, isopropyl, cyclopropyl, CH2CH2CH3, CF3, cyclobutyl; n represents 0, 1, or 2; When n represents 1, the sulfur atom connected thereto can be selected from R type or S type, or a mixture of the two, and the ratio of R to S in the mixture is 1:99 to 99:1. Further: X stands for chlorine; R1 represents CH2CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CF3, CH2CH2Cl, CH2CH(CH3)2, C(CH3)3, CH2CH2CH2CH2CH3, CH(CH3)CH2CH2CH3, CH2CH2CH(CH3)2, C(C H3)2CH2CH3, CH2CH(CH3)CH2CH3, CH2CF2H, CH2CFH2, CF2CF3, CF2CF2CF3, CH2CF2CF3, CH2CH2CF3, CH2CH2CF2H, CH2CH2CFH2, CF2CFHCF3, CHClCH3, CH2CF2H, CH2CFH2; R2 represents hydrogen; Rz represents hydrogen, methyl, ethyl, isopropyl, CH2CH2CH3; n represents 0, 1, or 2; When n represents 1, the sulfur atom connected thereto can be selected from R type or S type, or a mixture of the two, and the ratio of R to S in the mixture is 1:99 to 99:1. Going further: X stands for chlorine; R1 represents CH2CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CH(CH3)2, C(CH3)3, CH2CH2CH2CH2CH3, CH(CH3)CH2CH2CH3, CH2CH2CH(CH3)2, C(CH3)2CH2CH3, CH2CH(CH3)CH2CH3; R2 represents hydrogen; Rz represents hydrogen, methyl, ethyl, isopropyl, CH2CH2CH3; n represents 0, 1, or 2; When n represents 1, the sulfur atom connected thereto can be selected from R type or S type, or a mixture of the two, and the ratio of R to S in the mixture is 1:99 to 99:1. The active component B is selected from the following (b1-b18) types of herbicides: b1) Acetyl-CoA carboxylase inhibitors (ACCase inhibitors) herbicides; b2) acetolactate synthase (ALS) or acetylhydroxybutyrate synthase (AHAS) inhibitor herbicides; b3) Photosystem II inhibitors (PS II inhibitors) herbicides; b4) Photosystem I electron transport inhibitors (PS I inhibitors) herbicides; b5) Protoporphyrinogen oxidase inhibitors (PPO inhibitors) herbicides; b6) Phytoene dehydrogenase inhibitors (PDS inhibitors) herbicides; b7) herbicides of the type of hydroxyphenylpyruvate dioxygenase inhibitors (HPPD inhibitors); b8) Other pigment synthesis inhibitor herbicides; b9) 5-enolpyruvylshikimate-3-phosphate synthase (EPSP synthase) inhibitor herbicides; b10) Glutamine synthetase inhibitor (GS inhibitor) herbicides; b11) Dihydropteroate inhibitor herbicides; b12) Herbicides that inhibit microtubule organization and tissue development; b13) Cell division (very long chain fatty acid) inhibitor herbicides; b14) Cellulose synthesis inhibitor herbicides; b15) Oxidative phosphorylation uncoupler herbicides; b16) Lipid synthesis (non-ACCase) inhibitor herbicides; b17) Herbicides that interfere with plant hormone balance; b18) or the most recently published ISO name of the herbicide. Active component C is at least one safener compound, its salt or derivative thereof, selected from the following types of safeners: c1) Safeners for chloroamide herbicides; c2) Safeners for heterocyclic herbicides; c3) Pyrazole herbicide safeners; c4) Isoxazole herbicide safeners; c5) Cyclopropane herbicide safeners; c6) Amide herbicide safeners; c7) triazole herbicide safeners; c8) Pyrimidine herbicide safeners; c9) Carboxylic anhydride herbicide safeners; c10) Benzamide herbicide safeners. Preferably, The active component B in the composition is selected from the group consisting of quizalofop-p-ethyl, high-efficiency fluazifop-p-ethyl, fluazifop-p-ethyl, cyhalofop-butyl, quizalofop-p-ethyl, fluazifop-p-ethyl, cyhalofop-butyl, quinazolin-butyl, quizalofop-p-ethyl, fluazifop-p-ethyl, fluazifop-p-ethyl, pentocarb, sethoxydim, cloproxydim, cycloxydim, clethodim, benzothiocarb, butyclothiocarb, pyraclostrobin, cypermethrin, phenylacetamide, clodinafop-butyl, pinoxaden, oxadiazolamide, oxadiazol-butyl, oxadiazol-butyl, metsulfuron-methyl, chlorimuron-methyl, pyrazosulfuron-methyl, thifensulfuron-methyl, ethoxysulfuron-methyl, sulfonesulfuron-methyl, sulfonsulfuron-methyl, mesosulfuron-methyl, tetrazosulfuron-methyl, bensulfuron-methyl, chlorimuron-methyl, flazasulfuron-methyl, fluazifop-methyl, formamidosulfuron-methyl, chlorimuron-methyl, pyrazosulfuron-methyl, Azosulfuron-methyl, iodosulfuron-methyl sodium salt, nicosulfuron, pyrimidisulfon-methyl, cyprosulfuron, prosulfuron, sulfosulfuron, ether bensulfuron-methyl, bensulfuron-methyl, trifloxysulfuron, trifloxysulfuron, monosulfuron, iofensulfuron, trifloxysulfuron, promethazine, imazapyr, imazapyr, imazapyr, imazapyr, imazapyr, quinolinic acid, pyrasulfuron, bispyribac, sulfosulfuron, sulfosulfuron Oxazolin, penoxsulam, pyrifos, bispyribac, pyrimidoxime, cypermethrin, pyrimidoxime, fluazifop-butyl, fluazifop-butyl, imazethapyr, methoxysulfuron, chlorpyrifos, chlorpyrifos, bispyribac-butyl, pyrimidoxime, atrazine, prometryn, metribuzin, terbuthyl, terbuthylazine, cyanazine, propazine, simazine, atrazine chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos oro-5-(3-methyl-2,6-dioxo-4-(trifluoromethyl)-3,6-dihydropyrimidin-1(2H)-yl)phenyl)-5-methyl-4,5-dihydroisoxazole-5-carboxyla te, ethyl(5R)-3-(2-chloro-4-fluoro-5-(3-methyl-2,6-dioxo-4-(trifluoromethyl)-3,6-dihydropyrimidin-1(2H)-yl)phenyl)-5-methyl-4,5-dihydroisoxazole-5-carboxylate, fluazifop-butyl, trifluoperazine, benitosulfuron, cyclopyranil, epyrifenacil, fluazifop-butyl, fluazifop-butyl, fluazifop-methyl, fluazifop-butyl, beflubutamid-M, mesotrione, cyclamate, bicyclazone, furazolidone, lancotrione, sulfaquinoxaline, fluazifop-butyl, fenpyralid, pyrazoline, pyrazoline, pyrazoline, tolpyralate, isoxazolidinone, cyclamate, trifluoperazine, fluazifop-butyl, fluazifop-methyl, fluazifop-butyl, fenquinotrione one, quinclorac, methylquinclorac, pyraclostrobin, isoclomazone, dichloroisoclomazone, oxaziclomefone, bromocaproic acid, fluazifop, fluazifop, glyphosate, glufosinate, glufosinate, bialaphos, sulfamethoxam, butachlor, fluthiocarb, fluthiopyralid, fluazifop, ethylbutylfluanid, chlorethylfluanid, aminsulfuron, pendimethalin, fluthiocarb, aminophosphine, methylaminophosphine, dimethoate, propyzamide, biphosphine, chlorpropamide, chlorpropamide, wheatgrass flumethyl, strong fluyanine, propyzamide, butachlor, pretilachlor, mefenacet, silyphos, flufenacet, sulfonepyraclostrobin, ethylisoclostrobin, acetochlor, piperaphos, alachlor, amidochlor, gram grass amine, dimethenamid, Dimethenamid, pyraclostrobin, isopropylamine, pethoxamid, promethachlor, isopropylamine, mefenacet, bisbenzamide, naproxen, naproxenoxy propam, tetrazolam, mefenacet, fenoxasulfone, ipfencarbazone, indaziflam, methiozolin, naproxenamide-M, chlorsulfuron, dichlorvos, chlorfenapyr, indaziflam, isopropylamine, triazinon, dinoseb, telofenol, butanediol, fenacet, fenacetyl, fenacetyl, fenacetyl, fenacetyl, wild wheat chlorpyrifos, fenacetyl, sulfenthion, cyclohexane, furofuram, ethoxyfuran, soda, cypermethrin, cypermethrin, tetrafluoropropionic acid, fenacet, chlorpyrifos, 2,4-D, 2-Methyl-4-chloro-4-pyridinium chloride, dicamba, dicamba, amiloride, clofopyralid, clofopyralid ethyl ester, quinclorac, quinclorac, quinoline, clofosinate, triclopyralid, clopyralid, clomeclorac, chlorpyrifos, cyprodinil, chlorpyrifos, chlorfenapyr ... More preferably, Active component B is selected from the group consisting of amitriptyline, paraquat, bensulfuron-methyl, benzylsulfuron, benzylsulfuron, benzylsulfuron, pyrafluanid, pyrazosulfuron-methyl, pyrafluanid, pyraclostrobin, benzylsulfuron-methyl, pretilachlor, propargyloxazolidinone, propargyloxazolidinone, glufosinate, glufosinate, bialaphos, benzylchlor, glyphosate, diquat, diuron, butachlor, pyrasulfuron, oxadiazon, oxadiazol, pendimethalin, dichloroquinoline, dichloroquinoline, clopyralid, triclopyr, amiloride, sulfonepyraclostrobin, furazolidone, furazolidone , flupyralid, flubutyric acid, flusulfuron, fluthiopyrazone, fluclopyralid, flusulfuron, flutolane, flutolane, flupyralid ... , cyhalofop-butyl, clodinafop-butyl, thifensulfuron-butyl, triazosulfuron, cypermethrin, bispyribac-butyl, bispyribac-butyl, bispyribac-butyl, bispyribac-butyl, terbuthylazine, terbuthyl, penoxsulam, simethoprim, clethodim, mesotrione, bromoxynil, bromoxynil, nicosulfuron, acetochlor, fluazifop-butyl, oxyfluorfen, isoproturon, clomazone, bromocazone, dichloroisothiazolin, oxaziclomefone, isoxadiazon, cyclopentadiazon, atrazine, butarin, foramsulfuron, pinoxaden, 2,4-D, 2-Methyl-4-chloro-4, bixlozone, cyclo pyranil, fenquinotrione, lancotrione, pyrasulfotole, trifludimoxazin, sulfentrazone, methylquinoline, sulfentrazone, mefenacet, flufenacet, triazinon, fluazifop-butyl, flufenoximacil, fluchloraminopyr, epyrifenacil, metproxybicyclone, icafolin. More preferably, Active component B is selected from cyhalofop-butyl, oxadiazine, pyrazosulfuron-methyl, penoxsulam, bispyribac-butyl, pyrazosulfuron-methyl, promethazine, chlorpyrifos-butyl, fluazifop-butyl, quinclorac, 2-methyl-4-chloro-4, 2,4-D, clofopyralid, clofopyralid, dicamba, cloquintocet, clopyralid, triclopyralid, pendimethalin, butofenol, chlorpyrifos ... Grass enemy, triazole sulfone, bispyribac, cyproconazole, mesotrione, bispyribac, furazolidone, fluazifop, furazolidone, flubutamide, oxadiazon, bispyribac, oxadiazon, oxadiazon propargyl, benzylpyraclostrobin, oxyfluorfen, cyclopentadiazon, butachlor, pretilachlor, mefenacet, cypermethrin, isopropylamine, sulfonepyraclostrobin, simethicone, isopropylamine Amidocarb, bentazone, propanil, metribuzin, atrazine, bromoxynil octanoate, prometryn, bromoxynil, terbuthylazine, clomazone, bromoxanil, dichloroisothiazone, oxaziclomefone, cyproconazole, pyrimidine oxaflor, ethoxysulfuron, fluazifop, cyclopyranil, pyraclostrobin, benzylsulfuron-methyl, cyproconazole, methyldisulfuron, fluazifop-butyl, indole Pyridinic acid, fomesulfuron-butyl, lactofen-butyl, herbicide, glufosinate, glyphosate, high-efficiency fluazifop-butyl, sulfentrazone, imazapyr, amiloride, fluazifop-butyl, fluazifop-butyl, iodosulfuron-methyl sodium salt, methoxyfen-butyl, fluazifop-butyl, fenoxaprop-butyl, clofapyralid, imazapyr, imazapyr, imazapyr, clodinafop-butyl, clethodim, nicosulfuron, and pinoxaden. In the context of this specification, if the abbreviation of the common name of the active compound is used, all conventional derivatives, such as esters and salts, and isomers, particularly optical isomers, particularly one or more commercially available forms are included in each case. If the common name represents an ester or salt, all other conventional derivatives, such as other esters and salts, free acids and neutral compounds, and isomers, particularly optical isomers, particularly one or more commercially available forms are also included in each case. The chemical name of the compound given represents at least one compound encompassed by the common name, typically a preferred compound. In the case of sulfonamides such as sulfonylureas, salts also include salts formed by exchanging a cation with a hydrogen atom in the sulfonamide group. For example, 2-methyl-4-chloropropane and its derivatives include but are not limited to: 2-methyl-4-chloropropane (MCPA), 2-methyl-4-chlorobutyric acid (MCPB), 2-methyl-4-chloropropionic acid (MCPP), 2-methyl-4-chloro sodium (MCPA-sodium), 2-methyl-4-chloro potassium salt (MCPA-potassium), 2-methyl-4-chloro dimethylammonium salt (MCPA-dimethylammonium), 2-methyl-4-chloroisopropylamine salt, 2-methyl-4-chloromethyl ester (MCPA-methyl), 2-methyl-4-chloroethyl ester (MCPA-ethyl), 2-methyl-4-chlorobutyric acid ethyl ester (MCPB-ethyl), 2-methyl-4-chloroisooctyl ester (MCPA-isoctyl) and 2-methyl-4-chloroethyl thioester (MCPA-thioethyl); 2,4-D and its derivatives include but are not limited to: 2,4-D, 2,4-D butyric acid ... 2,4-DB, dichlorprop, 2,4-D-sodium, 2,4-D-potassium, 2,4-D-diethylammonium, 2,4-D-dimethylammonium, 2,4-D-isobutyl, 2,4-D-trolamine, 2,4-D-isopropylammonium, 2,4-D-ammonium, 2,4-D-choline;2,4-D-methyl, 2,4-D-ethyl, 2,4-D-propyl, 2,4-D-butyl, 2,4-D-octyl, 2,4-D-etexyl, 2,4-D-isopropyl, 2,4-D-meptyl, 2,4-D-butotyl, 2,4-D-diolamine, 2,4-D-doboxyl, 2,4-D-dodecylammonium, 2,4-D-hep tylammonium, 2,4-D-isoctyl, 2,4-D-lithium, 2,4-D-methylammonium, 2,4-D-pentyl, 2,4-D-tefuryl, 2,4-D-terboxyl, 2,4-D-tetradecylammonium, 2,4-D-triethylammonium and 2,4-D-tripromine; fluroxypyr and its derivatives including but not limited to fluroxypyr, fluroxypyr-meptyl and Fluroxypyr-butometyl; imazapic and its derivatives including but not limited to imazapic and imazapic-ammonium; imazethapyr and its derivatives including but not limited to imazethapyr and imazethapyr-ammonium; imazethapyr and its derivatives including but not limited to imazethapyr and imazapyr-ammonium, imazapyr-isopropylammonium; trichloroacetic acid Pyroxyacetic acid and its derivatives include but are not limited to triclopyr and triclopyr-butotyl; clopyralid derivatives include but are not limited to clopyralid, clopyralid-dimethylammonium, clopyralid-methyl, clopyralid-olamine, clopyralid-potassium, and clopyralid-tripromine;Indolepyridinic acid and its derivatives include but are not limited to indolauxipyr and indolauxipyr-cyanomethyl; amilopyr derivatives include but are not limited to amilopyr, picloram-dimethylammonium, picloram-etexyl, picloram-hexyloxypropylammonium, picloram-isoctyl, picloram-methyl, picloram-olamine, picloram-potassium, picloram-triethylammonium, picloram-tripromine, and picloram-t rolamine; aminopyralid and its derivatives include but are not limited to aminopyralid, aminopyralid-dimethylammonium, aminopyralid-potassium, and aminopyralid-tripromine; glyphosate and its derivatives include but are not limited to glyphosate, glyphosate ammonium, glyphosate dimethylammonium, glyphosate potassium, glyphosate sodium, glyphosate isopropylamine, glyphosate-diammonium, and glyphosate-trimesium; glufosinate and its derivatives include but are not limited to glufosinate, glufosinate-ammonium, glufosinate-P, glufosinate-P-ammonium, and glufosinate-P-sodium. The weight ratio of A to B in the herbicidal composition is 1:500 to 500:1; preferably 1:300 to 300:1; more preferably, the weight ratio of A to B in the herbicidal composition is 1:300 to 100:1; more preferably, the weight ratio of A to B in the herbicidal composition is 1:300 to 50:1. When component B is propanil, 2-methyl-4-chloro-4-pyridinium, 2,4-D, metribuzin, pretilachlor, butachlor, oxadiazon, dichloroquinoline, fenpropimorph, isoproturon or herbicide, the mass ratio of component A to component B is preferably 1:450-1:1; when component B is fluazifop, bispyribac-sodium, penoxsulam, dichloroquinoline, clofopyralid, cypermethrin, bispyribac, cyclopyr anil, triazosulfuron, pyraclostrobin, cyhalofop-butyl, oxadiazine, benzylsulfuron-methyl, clofopyralid, bentazone, amicarb, triclopyralid, mefenacet, propazinesulfuron-methyl, furazolidinone, fluazifop-butyl, cyproconazole, cyproconazole, cyproconazole, cyproconazole, cyproconazole, pyrimidinesulfuron-butyl, pyrimidinesulfuron-butyl, bicyclic sulfuron, pyrimidinesulfuron, clopyralid, cyclopentane Pyrifluanid, bispyribac-methyl, mesosulfuron, fluclopyralid, dicamba, mesosulfuron, indolepyralid, pyrazosulfuron-methyl, chlorpyrifos-methyl, promethazine, simethicone, octanoic acid bromoxynil, ethoxysulfuron, fomesafen, lactofen, pendimethalin, sulfonepyraclostrobin, terbuthylazine, oxyfluorfen, isopropylamine, glufosinate, glyphosate, high-efficiency flupyralid, sulfentrazone, methyl When imazapyr, imazamox, fluazifop-butyl, fenoxaprop-butyl, imazapyr, imazapyr, imazethapyr, clodinafop-propargyl, clethodim, nicosulfuron, pinoxaden, amiloride, aminopyralid, fluazifop-butyl, fluazifop-butyl, cyclopyranil, indolepyralid or iodosulfuron-methyl sodium salt is used, the weight ratio of component A to component B is preferably 1:100-50:1. The weight percentage of A and B in the herbicidal composition accounts for 1-95% of the total weight, preferably 10-80%. The herbicidal composition further comprises conventional adjuvants, which include carriers and surfactants. As used herein, the term "carrier" refers to an organic or inorganic, natural or synthetic substance that facilitates the application of the active ingredient. The carrier is generally inert and must be agriculturally acceptable, particularly to the plant being treated. Carriers can be solid, such as clay, natural or synthetic silicates, silicon dioxide, resins, waxes, solid fertilizers, etc.; or liquid, such as water, alcohols, ketones, petroleum fractions, aromatic or waxy hydrocarbons, chlorinated hydrocarbons, liquefied gases, etc. Surfactants may include emulsifiers, dispersants or wetting agents and may be ionic or nonionic. Examples that may be mentioned are salts of polyacrylic acid, lignin sulfonates, salts of phenolsulfonic acid or naphthalenesulfonic acid, polymers of ethylene oxide with aliphatic alcohols or with aliphatic acids or with aliphatic amines and with substituted phenols (especially alkylphenols or arylphenols), sulfosuccinates, taurine derivatives (especially taurine alkyl esters) and phosphoric esters of alcohols or polyhydroxyethylated phenols, alkylsulfonates, alkylarylsulfonates, alkyl sulfates, lauryl ether sulfates, fatty alcohol sulfates, and sulfated hexadecyl, heptadecanol and stearyl alcohols and sulfated fatty alcohol glycol ethers, furthermore condensates of naphthalene or naphthalenesulfonic acid with phenol and formaldehyde. Compounds, polyoxyethylene octylphenyl ether, ethoxylated isooctylphenol, octylphenol or nonylphenol, alkylphenyl polyethylene glycol ether, tributylphenyl polyethylene glycol ether, tristearylphenyl polyethylene glycol ether, alkylaryl polyether alcohol, alcohol and fatty alcohol / ethylene oxide condensates, ethoxylated castor oil, polyoxyethylene alkyl ether, ethoxylated polyoxypropylene, lauryl alcohol polyethylene glycol ether acetal, sorbitol ester, lignin sulfite wastewater, as well as proteins, denatured proteins, polysaccharides (such as methylcellulose), hydrophobically modified starch, polyvinyl alcohol, polycarboxylates, polyalkoxylates, polyvinylamine, polyvinylpyrrolidone and copolymers thereof. The presence of at least one surfactant is required to facilitate the dispersion of the active ingredients in water and to facilitate their correct application to plants. The above compositions may also contain various other components such as protective colloids, binders, thickeners, thixotropic agents, penetrants, stabilizers, chelating agents, dyes, colorants and polymers. The composition of the present invention can be diluted or used directly by the user before use. It can be prepared by conventional processing methods, that is, after mixing the active substance with a liquid solvent or a solid carrier, one or more surfactants such as dispersants, stabilizers, wetting agents, adhesives, defoaming agents, etc. are added. The specific formulations of the herbicidal composition are dispersible oil suspension, water suspension, suspoemulsion, wettable powder, emulsifiable concentrate, water dispersible granules (dry suspension), aqueous emulsion, and microemulsion. In short, the compositions of the present invention can be mixed with conventional solid and liquid additives used in prior art formulations. The amount of active ingredient used will vary depending on external conditions, such as temperature, humidity, the nature of the herbicide used, and the like. It can vary widely, for example, from 0.001 to 1.0 kg / ha, or more, of active ingredient, but is preferably from 0.005 to 750 g / ha, particularly from 0.005 to 500 g / ha. The present invention also provides a use of the herbicidal composition in controlling weeds; and provides a method for controlling unwanted plant growth, which comprises applying the herbicidal composition to plants, plant parts, plant seeds or areas where plants grow. Preferred compounds of formula (I) wherein: Q is selected from Q3; X is selected from chlorine; R1 is selected from CH2CH2CH3, CH(CH3)2, CH2CH2CH2CH3, cyclopropylmethyl, cyclopropyl, CH2CF3; R2 is selected from hydrogen; Rz is selected from hydrogen, methyl, ethyl, cyclopropyl; n is selected from 0, 1 or 2; When n is selected from 1, the sulfur atom connected thereto can be selected from R type or S type, or a mixture of the two, and the ratio of R to S in the mixture is 1:99 to 99:1. Preferred compounds of formula (I) wherein: Q is selected from Q3; X is selected from chlorine; R1 is selected from CH2CH2CH3, CH(CH3)2; R2 is selected from hydrogen; Rz is selected from methyl, ethyl, cyclopropyl; n is selected from 2. More preferred are compounds of formula (I) in which the variables, independently of one another or in combination with one another, have the following meanings: The specific active component A compound refers to compounds 1-1 to 1-87, 2-1 to 2-116, 3-1 to 3-886, 4-1 to 4-310 disclosed in CN117561242A. For details, see the CN117561242A specification.

[0053] -

[0089] Paragraph 3 is incorporated into this application by reference. The herbicide B is selected from the herbicides B defined in b1-b18 above, especially the herbicides listed in Table 1 below Table 1 The present invention also provides the above-mentioned herbicidal composition, wherein the active component C is at least one safener. Safeners are compounds that prevent or reduce damage to useful plants but do not significantly affect the herbicidal action of the herbicidal active ingredients of the compositions of the present invention against unwanted plants. They can be applied before sowing (e.g., during seed treatment, on young shoots or rice seedlings) or by pre-emergence or post-emergence application of useful plants. Safeners and herbicides B can be applied simultaneously or sequentially. Safener C can be selected from benoxacor, cloquintocet, cyometrinil, cyprosulfamide, dichlormid, dicyclonon, dietholate, fenchlorazole, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen, mefenpyr, mephenate, naphthalic anhydride, oxabetrinil, metcamifen, 4-dichloroacetyl-1-oxa-4-azaspiro[4.5]decane (MON4660, CAS NO.: 71526-07-3), 2,2,5-trimethyl-3-dichloroacetyl-1,3-oxazolidine (R-29148, CAS NO.: 52836-31-4) and N-(2-methoxybenzoyl)-4-[(methylaminocarbonyl)amino]benzenesulfonamide (CAS NO.: 129531-12-0). Preferred safeners are the compounds in Table 2 below Table 2 When the active components A, B, and C have ionizable functional groups, they can also be used in the form of their agriculturally acceptable salts. Suitable salts are generally those of cations and acid addition salts of acids whose cations and anions, respectively, do not adversely affect the activity of the active compound. Preferred cations are ions of alkali metals, preferably lithium, sodium and potassium, ions of alkaline earth metals, preferably calcium and magnesium, and ions of transition metals, preferably manganese, copper, zinc and iron, furthermore ammonium and substituted ammonium in which 1 to 4 hydrogen atoms are replaced by C1-C4-alkyl, hydroxy-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkyl, hydroxy-C1-C4-alkoxy-C1-C4-alkyl, phenyl or benzyl groups, preferably ammonium, methylammonium, isopropylammonium, dimethylammonium, diisopropylammonium, trimethylammonium, heptylammonium, dodecylammonium, tetradecylammonium, tetramethylammonium, tetraethylammonium, tetrabutylammonium, 2- Hydroxyethylammonium (alcoholamine salts), 2-(2-hydroxyeth-1-oxy)eth-1-ylammonium (diglycolamine salts), di(2-hydroxyeth-1-yl)ammonium (diolamine salts), tri(2-hydroxyethyl)ammonium (triolamine salts), tri(2-hydroxypropyl)ammonium, benzyltrimethylammonium, benzyltriethylammonium, N,N,N-trimethylethanolammonium (choline salts), furthermore ions, sulfonium ions, preferably tri(C1-C4-alkyl)sulfonium, such as trimethylsulfonium, and sulfoxonium ions, preferably tri(C1-C4-alkyl)sulfoxonium, and finally salts of polyamines such as N,N-di(3-aminopropyl)methylamine and diethylenetriamine. Anions of useful acid addition salts are primarily chloride, bromide, fluoride, iodide, hydrogen sulfate, methyl sulfate, sulfate, dihydrogen phosphate, hydrogen phosphate, nitrate, hydrogen carbonate, carbonate, hexafluorosilicate, hexafluorophosphate, benzoate and also anions of C1-C4-alkanoic acids, preferably formate, acetate, propionate and butyrate. Alternatively, the above-mentioned components A, B, and C may also be in the form of an acid, in the form of an agriculturally acceptable salt as described above, or in the form of an agriculturally acceptable derivative, for example as an amide, such as a mono- and di-C1-C6-alkylamide or arylamide, as an ester, for example as an allyl ester, a propargyl ester, a C1-C6-alkyl ester, 10 Alkyl esters, alkoxyalkyl esters, tetrahydrofuranylmethyl ((tetrahydrofuran-2-yl)methyl) esters and also as thioesters, for example as C1-C 10 Alkylthio esters are used. Preferred mono- and di-C1-C6 alkylamides are methyl and dimethylamides. Preferred arylamides are, for example, anilide and 2-chloroanilide. Preferred alkyl esters are, for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, methylhexyl (1-methylhexyl), methylheptyl (1-methylheptyl), heptyl, octyl or isooctyl (2-ethylhexyl) esters. The present invention also provides a herbicide composition useful as a herbicide, characterized in that the herbicide composition comprises 1 to 99% by weight of the active ingredient as an active ingredient. The herbicide formulation can be in the form of an aqueous emulsion, dispersible oil suspension, dispersible oil, microemulsion, emulsifiable concentrate, soluble concentrate, aqueous solution, suspension, suspoemulsion, ultra-low volume concentrate, powder, wettable powder, granules, water-dispersible granules, dry suspension, microcapsule suspension, microcapsule granules, effervescent granules, effervescent tablets, or water-dispersible tablets. Surfactants such as emulsifiers, dispersants, and wetting agents can also be added to the composition to enhance the composition's stability, permeability, and wettability. The dispersant suitable for preparing the composition of the present invention can be naphthalene or alkylnaphthalene formaldehyde condensate sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol polyoxyethylene ether sulfonate, polycarboxylate, fatty alcohol ethylene oxide adduct phosphate, alkylphenol polyoxyethylene, ether formaldehyde condensate sulfate, polyoxyethylene polyoxypropylene ether block copolymer, alkylphenol polyoxyethylene phosphate, lignin sulfonate, gelatin, gum arabic, carboxymethyl cellulose, polyoxyethylene alcohol, polyvinyl pyrrolidone, sodium polyacrylate, polyethylene glycol, and can be one or more of them. The wetting agent suitable for preparing the composition of the present invention can be fatty alcohol sulfate, sodium alkyl alcohol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene, ether sodium sulfate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, alkyl sodium sulfate, alkylnaphthalene sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensate ethylene oxide adduct sulfonate, alkaneamide sulfonate, fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, sorbitol fatty acid ester, sorbitol fatty acid ester polyoxyethylene ether, polyoxyethylene polyoxypropylene ether block copolymer, alkylphenol formaldehyde condensate polyoxyethylene ether, and can be one or more thereof. Solid carriers suitable for preparing the composition of the present invention can be clay, kaolin, gypsum, bentonite, diatomaceous earth, talc, clay, magnesium aluminum silicate, activated white clay, white carbon black, limestone, light calcium carbonate, corn starch, soluble starch, hexamethylene diammonium, benzofuran resin, styrene polymers and copolymers, etc. The binders suitable for preparing the herbicide composition of the present invention may be natural or synthetic, such as xanthan gum, gelatin, gum arabic, polyvinyl pyrrolidone, magnesium aluminum silicate, polyvinyl alcohol, phenolic resin, shellac, carboxymethyl cellulose, methyl cellulose and sodium alginate. The defoaming agent may be foaming agent, silicone, C 8～10 Fatty alcohol, C 10～20 Saturated fatty acids and amides, etc. The disintegrant suitable for preparing the composition of the present invention can be one or more of calcium chloride, calcium chloride, sodium sulfate, ammonium sulfate, polyethyl acrylate, sodium carbonate, polyvinyl pyrrolidone, sodium alginate, and sodium carboxymethyl starch. The preparation examples of some representative compounds of the required active component A are as follows. The synthesis methods of other compounds are similar and will not be repeated here. If there is a conflict between the Chinese name and the structural formula of the compound in the present invention, the structural formula shall prevail, unless there is an obvious error in the structural formula. The beneficial effects of the present invention are as follows: the present invention provides a herbicidal composition of uracil compounds containing carboxylic acid ester fragments, which has satisfactory efficacy and selectivity when used as a herbicide. In addition, the preparation and use methods of the present invention are simple and easy. DETAILED DESCRIPTION The present invention is described below with reference to examples, but is not limited thereto. Simple replacements or improvements made by those skilled in the art to the present invention fall within the technical solutions protected by the present invention. Several methods for preparing the compounds of the present invention are described in detail in the following schemes and examples. The starting materials can be purchased commercially or can be prepared by methods known in the literature or as described in detail. It will be understood by those skilled in the art that other synthetic routes can also be used to synthesize the compounds of the present invention. Although the specific starting materials and conditions in the synthetic routes have been described below, they can be easily replaced with other similar starting materials and conditions, and these modifications or variations of the preparation methods of the present invention that result in various isomerizations of the compounds are included within the scope of the present invention. In addition, the preparation methods described below can be further modified according to the present disclosure using conventional chemical methods well known to those skilled in the art. For example, appropriate groups can be protected during the reaction, etc. The following process examples are provided to facilitate a further understanding of the preparation methods of the present invention. The specific substances, types, and conditions used are intended to further illustrate the present invention and are not intended to limit its reasonable scope. The raw materials and reagents used in the synthetic compounds described below are either commercially available or can be readily prepared by one of ordinary skill in the art. The analytical instruments described in the examples are as follows: 1. High Performance Liquid Chromatography (HPLC): Agilent Technologies, 1260 Infinity II instrument Column: Agilent Eclipse Plus C 18 3.5 μm, 4.6*100 mm Mobile phase: A: water + 0.1% phosphoric acid; B: acetonitrile, temperature: 30°C Gradient: 10% B to 95% B in 15 min; 95% B in 3 min Flow rate: 1 mL / min 2. Ultra-high performance liquid chromatography-tandem mass spectrometry (LC-MS): Waters ACQUITY H-Class UPLC-SQ Detector 2 Column: ACQUITY UPLC BEH C 18 1.7 μm, 2.1*50 mm Column Mobile phase: A: water + 0.2% formic acid; B: acetonitrile, temperature: 30°C Gradient: 10% B to 95% B in 5 min; 95% B 1 min Flow rate: 0.5 mL / min MS method: ESI positive, negative, mass range (m / z): 100-800 3. Gas chromatography-tandem mass spectrometry (GC-MS): Agilent Technologies, 7890B GC System-5977A MSD equipment Column: Agilent Technologies, HP-5MS UI 0.25μm, 30m*0.250mm Injector temperature: 250°C Column flow rate: Helium 1mL / min Method: maintain at 40℃ for 2 minutes, increase the temperature at 20℃ / min to 280℃, maintain at 280℃ for 5 minutes, total time 19 minutes MSD transfer line temperature: 280°C EI ion source temperature: 230°C, MS quadrupole temperature: 150°C, scan range: 30.00-400.00 In addition, the proton nuclear magnetic resonance spectrum (hereinafter referred to as 1 The chemical shift values ​​of H-NMR were measured at 400 MHz (Bruker, AVANCE III HD 400M) in deuterated chloroform solvent (CDCl3) using Me4Si (tetramethylsilane) as a reference substance. When measured in deuterated dimethyl sulfoxide solvent, the chemical shift value data are displayed as "(DMSO-d6)". It should be noted that 1 The symbols in the chemical shift values ​​of H-NMR have the following meanings: s: singlet, d: doublet, dd: doublet of doublets, dt: doublet of triplets, td: triplet of doublets, ddd: doublet of doublets, t: triplet, q: quartet, sep: septet, m: multiplet, brs: broad singlet. In the case of two or more stereoisomers, the chemical shift values ​​for resolvable signals are indicated with "and". Examples of Representative Compounds The intermediate structure and preparation method refer to intermediates 1 to 72 disclosed in CN117561242A. For details, see the CN117561242A specification.

[0184] -

[0273] Paragraph 3 is incorporated into this application by reference. The structural characterization and preparation method data of Example compounds 1-1 to 4-310 refer to the specification disclosed in CN117561242A

[0274] -

[0531] , incorporated into this application by reference. Composition Preparation Example i) Water-soluble concentrates (SL, LS) 10-60% by weight of the composition according to the invention and 5-15% by weight of a wetting agent (eg alcohol alkoxylate) are dissolved in up to 100% by weight of water and / or a water-soluble solvent (eg alcohol). The active substance dissolves on dilution with water. ii) Dispersible Concentrate (DC) Dissolve 5-25 wt% of the composition of the present invention and 1-10 wt% of a dispersant (eg polyvinylpyrrolidone) in an organic solvent (eg cyclohexanone) up to 100 wt%. Dilution with water gives a dispersion. iii) Emulsifiable Concentrates (EC): 15-70 wt% of the composition of the present invention and 5-10 wt% of an emulsifier (eg calcium dodecylbenzenesulfonate and castor oil ethoxylate) are dissolved in up to 100 wt% of a water-insoluble organic solvent (eg aromatic hydrocarbon), and diluted with water to give an emulsion. iv) Emulsions (EW, EO, ES): 5-40% by weight of the composition of the present invention and 1-10% by weight of an emulsifier (e.g., calcium dodecylbenzenesulfonate and castor oil ethoxylate) are dissolved in 20-40% by weight of a water-insoluble organic solvent (e.g., an aromatic hydrocarbon). This mixture is added to 100% by weight of water using an emulsifier to form a homogeneous emulsion. Dilution with water gives an emulsion. v) Suspensions (SC, OD, FS): 20-60% by weight of a composition according to the invention are ground in a stirred ball mill with the addition of 2-10% by weight of a dispersant and wetting agent (e.g. sodium ligninsulfonate and alcohol ethoxylate), 0.1-2% by weight of a thickener (e.g. xanthan gum) and up to 100% by weight of water to give a finely divided active substance suspension. Dilution with water gives a stable active substance suspension. For FS compositions, up to 40% by weight of a binder (e.g. polyvinyl alcohol) is added. vi) Water-dispersible and water-soluble granules (WG, SG): 50 to 80% by weight of the composition according to the invention are finely ground with the addition of up to 100% by weight of dispersants and wetting agents (e.g. sodium ligninsulfonate and alcohol ethoxylate) and prepared into water-dispersible or water-soluble granules using industrial equipment (e.g. extruder, spray tower, fluidized bed). Dilution with water gives a stable dispersion or solution of the active substance. vii) Water-dispersible and water-soluble powders (WP, SP, WS): 50-80% by weight of a composition according to the invention are ground in a rotor-stator mill with addition of 1-5% by weight of a dispersant (e.g. sodium ligninsulfonate), 1-3% by weight of a wetting agent (e.g. alcohol ethoxylate) and up to 100% by weight of a solid carrier (e.g. silica gel). Dilution with water gives a stable dispersion or solution of the active substance. viii) Gel (GW, GF) 5-25% by weight of the composition according to the invention are comminuted in a stirred ball mill with addition of 3-10% by weight of a dispersant (e.g. sodium ligninsulfonate), 1-5% by weight of a thickener (e.g. carboxymethylcellulose) and up to 100% by weight of water to give a fine suspension of the active substance. Dilution with water gives a stable suspension of the active substance. iv) Microemulsion (ME) 5-20 wt% of the composition of the present invention is added to 5-30 wt% of an organic solvent blend (e.g., fatty acid dimethylamide and cyclohexanone), 10-25 wt% of a surfactant blend (e.g., alcohol ethoxylate and arylphenol ethoxylate), and 100 wt% of water. The mixture is stirred for 1 hour to spontaneously generate a thermodynamically stable microemulsion. iv) Microcapsules (CS): An oil phase containing 5-50 wt% of the composition of the present invention, 0-40 wt% of a water-insoluble organic solvent (e.g., aromatic hydrocarbon), and 2-15 wt% of acrylic monomers (e.g., methyl methacrylate, methacrylic acid, and di- or triacrylates) is dispersed in an aqueous solution of a protective colloid (e.g., polyvinyl alcohol). Free radical polymerization initiated by a free radical initiator results in the formation of poly(meth)acrylate microcapsules. Alternatively, an oil phase containing 5-50 wt% of the compound I of the present invention, 0-40 wt% of a water-insoluble organic solvent (e.g., aromatic hydrocarbon), and an isocyanate monomer (e.g., diphenylmethane-4,4'-diisocyanate) is dispersed in an aqueous solution of a protective colloid (e.g., polyvinyl alcohol). Addition of a polyamine (e.g., hexamethylenediamine) results in the formation of polyurea microcapsules. The monomer amount is 1-10 wt%. The wt% refers to the entire CS composition. ix) Dustable Powders (DP, DS) 1 to 10% by weight of a composition according to the invention are finely ground and intimately mixed with up to 100% by weight of a solid carrier (eg finely divided kaolin). x) Granules (GR, FG) 0.5-30% by weight of the composition according to the invention are ground finely and combined with up to 100% by weight of a solid carrier (eg silicate). Granulation is achieved by extrusion, spray drying or fluidized bed. xi) Ultra Low Volume Liquids (UL) 1-50 wt% of the composition of the invention is dissolved in up to 100 wt% of an organic solvent (eg an aromatic hydrocarbon). The above formulations i) to xi) may optionally contain other adjuvants, such as 0.1-1 wt% bactericide, 5-15 wt% antifreeze, 0.1-1 wt% defoamer and 0.1-1 wt% colorant. Biological activity assay Active components A and B were screened separately, and the combined effect of the composition on weeds was determined indoors. The combined effect of the composition on weeds was determined through indoor and field tests. Experimental methods A fixed amount of grass weeds (barnyardgrass, barnyardgrass, crabgrass, jackfruit, foxtail, goosegrass, wild oats, Japanese alopecuroides, alopecuroides, multiflora ryegrass, sedge grass, and giant alopecuroides) and broadleaf weeds (chickentail, Polygonum truncatum, wild arrowhead, wild rapeseed, velvetleaf, Xanthium sibiricum, Erigeron candidum, Arabian speedwell, Chickweed, Polygonum truncatum, Galium, Alisma orientale, and wild geranium) were sown in 7-cm-diameter paper cups filled with nutrient soil. After sowing, the seeds were covered with 1 cm of soil, suppressed, watered, and incubated in a greenhouse according to conventional methods. Grass weeds were sprayed on the stems and leaves when they reached the 4-8 leaf stage, and broadleaf weeds were sprayed on the stems and leaves when they reached the 4-6 leaf stage. Pre-emergence soil spraying was performed 24 hours after sowing. The designed dosage was sprayed using a WP-2000 traveling spray tower (spindle speed 96 mm / r, spray height 200 mm, effective spray width 350 mm, nozzle flow rate 390 mL / min, and nozzle travel speed 210 mm / s). Three replicates were used. After treatment, the test materials were placed in the operating hall. After the solution dried naturally in the shade, they were placed in the greenhouse and managed according to conventional methods. The weed response to the treatment was observed and recorded. The weed control efficacy of the test agent was visually inspected regularly after treatment. Experimental design Experimental potion The original drug uses acetone as solvent and is diluted with a 0.1% emulsifier Tween-80 aqueous solution, and is diluted before use. Dose setting When determining the ratio or content of active ingredient A and active ingredient B, the characteristics and toxicity of the two agents should be considered, as well as the primary purpose of the formulation. Based on preliminary trials, this study established the dosages of active ingredients A and B, both alone and in combination, as shown in the table. Water containing no agent and the same solvent and emulsifier served as a blank control. Experimental replication Each treatment was replicated 4 times, with 3 pots per treatment and 30 weed seeds sown in each pot. Survey Methodology The absolute count method was used. Whole surviving weed seedlings were cut along the soil surface with a razor blade and the fresh weight of the weeds was measured using an analytical balance. Dead weeds were counted as zero. Survey time and number: Survey will be conducted 21 days after treatment, for a total of 1 survey. Data statistical analysis The theoretical fresh weight inhibition rate (E0 = X + YX * Y / 100) of each treatment mixture was calculated using the Gowing method and then compared with the measured inhibition rate (E) to evaluate the type of combined weed control effect. An E-E0 value greater than 10% indicates synergism, less than -10% indicates antagonism, and between -10% and 10% indicates additive effects. The optimal ratio was determined based on actual control efficacy, herbicide characteristics, and formulation balance. Here, X represents the fresh weight inhibition rate at a dosage of active ingredient A (P); Y represents the fresh weight inhibition rate at a dosage of active ingredient B (Q). The statistical results are shown in the table below. Except for those clearly marked as "soil treatment", all others are "post-seedling stem and leaf spray treatment". Table 3 Evaluation of indoor toxicity and combined effects of 3-10 mixtures of flusulfoxam to barnyardgrass (A:B=1:4~2:1) Table 4 Evaluation of indoor toxicity and combined effects of 3-10 mixed bispyribac-sodium on barnyardgrass (A:B=1:10 to 10:1) Table 5 Indoor toxicity and combined effect evaluation of 3-10 mixed penoxsulam against barnyardgrass (A:B=1:10 to 10:1) Table 6 Evaluation of indoor toxicity and combined effects of 3-10 mixed propanil on barnyard grass (A:B = 1:5 to 1:450) Table 7 Indoor toxicity and combined effect evaluation of 3-10 mixed quinclorac against barnyard grass (A:B = 1:1 to 1:125) Table 8 Evaluation of indoor toxicity and combined effects of 3-10 mixed clopyralid against barnyardgrass (A:B=1:10 to 10:1) Table 9 Indoor toxicity and combined effect evaluation of 3-10 mixed safflower to barnyard grass (A:B = 1:3 to 1:90) Table 10 Evaluation of indoor toxicity and combined effects of 3-10 mixed pyraclostrobin against barnyardgrass (A:B = 1:1 to 1:40) Table 11 Indoor toxicity and combined effect evaluation of 3-10 mixed cyclopyranil on Setaria viridis (soil treatment) (A:B = 1:1 to 1:40) Table 12 Evaluation of indoor toxicity and combined effects of 3-10 mixed triazosulfuron on Leptochloa chinensis (A:B = 1:1 to 1:45) Table 13 Evaluation of indoor toxicity and combined effects of 3-10 mixed pyraclostrobin against Leptochloa chinensis (A:B = 2:1 to 1:350) Table 14 Evaluation of indoor toxicity and combined effects of 3-10 mixed cyhalofop-butyl on Leptochloa chinensis (A:B = 1:1 to 1:60) Table 15 Indoor toxicity and combined effect evaluation of 3-10 mixed metamifop against crabgrass (A:B=1:1~1:15) Table 16 Indoor toxicity and combined effect evaluation of 3-10 mixed bensulfuron-methyl on snakehead intestine (A:B = 1:2 to 10:1) Table 17 Indoor toxicity and combined effect evaluation of 3-10 mixed clopyralid on snakehead intestine (A:B=2:1~1:40) Table 18 Indoor toxicity and combined effect evaluation of 3-10 mixed with sodium 2-methyl-4-chloropropane on snakehead intestine (A:B = 1:2 to 1:120) Table 19 Indoor toxicity and combined effect evaluation of 3-10 mixed bentazone on snakehead intestine (A:B = 1:2 to 1:60) Table 20 Indoor toxicity and combined effect evaluation of 3-10 mixed with 2,4-D on the intestines of snakehead fish (A:B = 1:8 to 1:120) Table 21 Indoor toxicity and combined effect evaluation of amitriptyline mixed with 3-10 on Xanthium sibiricum (A:B=1:6~1:60) Table 22 Indoor toxicity and combined effect evaluation of 3-10 mixed metribuzin on Xanthium sibiricum (A:B = 1:10 to 1:200) Table 23 Indoor toxicity and combined effect evaluation of 3-10 mixed triclopyr against Xanthium sibiricum (A:B=1:4~1:50) Table 24 Indoor toxicity and combined effect evaluation of 3-10 mixed mefenacet against barnyardgrass (soil treatment) (A:B = 1:8 to 1:100) Table 26 Indoor toxicity and combined effect evaluation of 3-10 mixed with pretilachlor on barnyard grass (soil treatment) (A:B = 1:6 to 1:120) Table 27 Evaluation of indoor toxicity and combined effects of 3-10 mixed with promethazinesulfuron against barnyardgrass (A:B = 1:1 to 1:20) Table 28 Indoor toxicity and combined effect evaluation of 3-10 mixed butachlor on barnyard grass (soil treatment) (A:B = 1:12 to 1:240) Table 29 Indoor toxicity and combined effect evaluation of oxadiazon mixed with 3-10 against barnyardgrass (soil treatment) (A:B = 1:6 to 1:150) Table 30 Indoor toxicity and combined effect evaluation of 3-10 mixed dichloroquinoline trichlorfon against barnyard grass (A:B = 1:10 to 1:200) Table 31 Indoor toxicity and combined effect evaluation of 3-10 mixed furazolidinone on barnyard grass (A:B=1:8~1:100) Table 32 Indoor toxicity and combined effect evaluation of 3-10 mixed fluazifop to barnyard grass (A:B=5:1~1:5) Table 33 Evaluation of indoor toxicity and combined effects of 3-10 mixed graminoids against barnyardgrass (A:B=1:40~1:100) Table 34 Indoor toxicity and combined effect evaluation of 3-10 mixed grasses against barnyard grass (A:B = 1:40 to 1:300) Table 35 Indoor toxicity and combined effect evaluation of cyproconazole mixed with 3-10 on barnyardgrass (A:B = 1:4 to 1:50) Table 36 Indoor toxicity and combined effect evaluation of 3-10 mixed oxadiazon against barnyardgrass (soil treatment) (A:B = 1:4 to 1:80) Table 37 Indoor toxicity and combined effect evaluation of 3-10 mixed cypermethrin against barnyardgrass (A:B = 1:2 to 1:40) Table 38 Indoor toxicity and combined effect evaluation of 3-10 mixed pyrimidine oxime against barnyardgrass (A:B = 2:1 to 1:10) Table 39 Indoor toxicity and combined effect evaluation of 3-10 mixed pyrazosulfuron-methyl against barnyardgrass (soil treatment) (A:B = 1:1 to 1:20) Table 40 Evaluation of indoor toxicity and combined effects of bispyribac-sodium mixed with 3-10 on Xanthium sibiricum (A:B=1:5~5:1) Table 41 Indoor toxicity and combined effect evaluation of 3-10 mixed bicyclam to Xanthium sibiricum (A:B=1:4~1:50) Table 42 Evaluation of indoor toxicity and combined effects of 3-10 mixed with clopyralid against Xanthium sibiricum (A:B=1:5~5:1) Table 43 Evaluation of indoor toxicity and combined effects of 3-10 mixed diflufenac on Veronica officinalis (A:B = 1:4 to 1:50) Table 44 Evaluation of indoor toxicity and combined effects of 3-10 mixed clopyralid on Veronica officinalis (A:B = 1:4 to 1:80) Table 45 Indoor toxicity and combined effect evaluation of 3-10 mixed cypermethrin on Veronica officinalis (A:B = 1:4 to 1:20) Table 46 Evaluation of indoor toxicity and combined effects of 3-10 mixed pyraclostrobin on Veronica officinalis (A:B = 2:1 to 1:5) Table 47 Evaluation of indoor toxicity and combined effects of 3-10 mixed with mesosulfuron against Veronica officinalis (A:B = 10:1 to 1:3) Table 48 Evaluation of indoor toxicity and combined effects of 3-10 mixed with halauxifen-methyl on Veronica odorata (A:B = 10:1 to 1:2.5) Table 49 Evaluation of indoor toxicity and combined effects of 3-10 mixed dicamba on Veronica officinalis (A:B = 1:6 to 1:60) Table 50 Evaluation of indoor toxicity and combined effects of 3-10 mixed isoproturon on Veronica officinalis (A:B = 1:20 to 1:300) Table 51 Evaluation of indoor toxicity and combined effects of 3-10 mixed carbazone on Veronica officinalis (A:B = 2:1 to 1:10) Table 52 Evaluation of indoor toxicity and combined effects of 3-10 mixed indolepyridinic acid on Glechoma longituba (A:B = 1:2.5 to 10:1) Table 53 Evaluation of indoor toxicity and combined effects of 3-10 mixed pyrazosulfuron-methyl on snakehead intestine (A:B=2:1~5:1) Table 54 Evaluation of indoor toxicity and combined effects of 3-10 mixed clopyrazosulfuron-methyl on snakehead intestine (A:B=1:5~5:1) Table 55 Indoor toxicity and joint effect evaluation of 3-10 mixed prometryn on snakehead intestine (soil treatment) (A:B = 1:8 to 1:100) Table 56 Indoor toxicity and combined effect evaluation of 3-10 mixed simetryn on snakehead intestine (A:B = 1:4 to 1:80) Table 57 Indoor toxicity and combined effect evaluation of 3-10 mixed bromoxynil octanoyl on the intestine of snakehead (A:B = 1:8 to 1:100) Table 58 Indoor toxicity and combined effect evaluation of 3-10 mixed ethoxysulfuron on snakehead intestine (soil treatment) (A:B = 2:1 to 5:1) Table 59 Indoor toxicity and combined effect evaluation of 3-10 mixed fomesafen on the intestines of snakehead (A:B = 1:4 to 1:10) Table 60 Indoor toxicity and combined effect evaluation of 3-10 mixed lactofenol on the intestine of snakehead (A:B = 1:1 to 1:2) Table 61 Evaluation of indoor toxicity and combined effects of 3-10 mixed herbicides on crabgrass (A:B = 1:40 to 1:200) Table 62 Indoor toxicity and combined effect evaluation of 3-10 mixed pendimethalin on crabgrass (soil treatment) (A:B = 1:30 to 1:50) Table 63 Indoor toxicity and combined effect evaluation of 3-10 mixed sulfone metachlorazole on crabgrass (soil treatment) (A:B = 1:4 to 1:7.5) Table 64 Evaluation of indoor toxicity and combined effects of 3-10 mixed terbuthylazine on crabgrass (A:B = 1:4 to 1:20) Table 65 Indoor toxicity and combined effect evaluation of 3-10 mixed oxyfluorfen against crabgrass (soil treatment) (A:B = 1:4 to 1:7.5) Table 66 Indoor toxicity and combined effect evaluation of 3-10 mixed clomazone on crabgrass (soil treatment) (A:B = 1:30 to 1:50) Table 67 Indoor toxicity and combined effect evaluation of 3-10 mixed metolachlor on crabgrass (soil treatment) (A:B = 1:30 to 1:50) Table 68 Indoor toxicity and combined effect evaluation of 3-10 mixed glufosinate on crabgrass (A:B = 1:4 to 1:50) Table 69 Indoor toxicity and combined effect evaluation of 3-10 mixed glyphosate on crabgrass (A:B = 1:4 to 1:50) Table 70 Evaluation of indoor toxicity and combined effects of 3-10 mixed high-efficiency haloxyfop-ethyl on crabgrass (A:B = 2:1 to 1:10) Table 71 Evaluation of indoor toxicity and combined effects of 3-10 mixed sulfentrazone on crabgrass (soil treatment) (A:B = 1:8 to 1:15) Table 72 Evaluation of indoor toxicity and combined effects of 3-10 mixed imazapic against crabgrass (A:B = 1:1 to 1:2) Table 73 Indoor toxicity and combined effect evaluation of 3-10 mixed imazamox on crabgrass (soil treatment) (A:B = 2:1 to 1:1.5) Table 74 Evaluation of indoor toxicity and combined effects of 3-10 mixed fluazifop-ethyl against crabgrass (A:B=1:3-1:5) Table 75 Evaluation of indoor toxicity and combined effects of 3-10 mixed fenoxaprop-ethyl on crabgrass (A:B = 1:1 to 1:5) Table 76 Evaluation of indoor toxicity and combined effects of 3-10 mixed imazapyr against crabgrass (A:B = 1:30 to 1:50) Table 77 Evaluation of indoor toxicity and combined effects of 3-10 mixed imazethapyr against crabgrass (A:B = 1:3 to 1:5) Table 78 Evaluation of indoor toxicity and combined effects of 3-10 mixed clodinafop-propargyl on crabgrass (A:B=2:1~1:5) Table 79 Evaluation of indoor toxicity and combined effects of clethodim mixed with 3-10 on crabgrass (A:B = 1:3 to 1:30) Table 80 Evaluation of indoor toxicity and combined effects of 3-10 mixed nicosulfuron on crabgrass (A:B = 2:1 to 1:1.5) Table 81 Evaluation of indoor toxicity and combined effects of 3-10 mixed pinoxaden on crabgrass (A:B = 2:1 to 1:10) Table 82 Evaluation of indoor toxicity and combined effects of 3-10 mixed amiloride on crabgrass (A:B = 1:12 to 1:80) Table 83 Indoor toxicity and combined effect evaluation of 3-10 mixed aminopyralid against goosegrass (A:B = 1:12 to 1:240) Table 84 Indoor toxicity and combined effect evaluation of 3-10 mixed fluazifop to goosegrass (A:B=5:1~1:5) Table 85 Indoor toxicity and combined effect evaluation of 3-10 mixed fluazifop-butyl on goosegrass (A:B=1:2~1:40) Table 86 Evaluation of indoor toxicity and combined effects of 3-10 mixed indolepyridinic acid on Glechoma longituba (A:B = 10:1 to 1:2.5) Table 87 Evaluation of indoor toxicity and combined effects of 3-10 mixed iodosulfuron-methyl sodium on Japanese alopecuroides (A:B = 10:1 to 1:3) Table 88 Evaluation of indoor toxicity and combined effects of 3-5 mixed fluazifop to Leptochloa chinensis (A:B = 6:1 to 1:6) Table 89 Evaluation of indoor toxicity and combined effects of 3-5 mixed pyraclostrobin against barnyard grass (A:B=3:1~1:4) Table 90 Evaluation of indoor toxicity and combined effects of oxadiazon-methyl mixed with 3-5 on barnyard grass (A:B = 2:1 to 1:8) Table 91 Indoor toxicity and combined effect evaluation of 3-5 mixed oxaziclomefone on barnyard grass (soil treatment) (A:B = 6:1 to 1:6) Table 92 Indoor toxicity and combined effect evaluation of 3-5 mixed mesotrione on crabgrass (soil treatment) (A:B = 1:1 to 1:12) Table 93 Indoor toxicity and combined effect evaluation of 3-5 mixed atrazine on Digitaria sanguinalis (soil treatment) (A:B = 3:10 to 1:80) Table 94 Indoor toxicity and combined effect evaluation of 3-5 mixed penoxsulam against barnyard grass (A:B=3:1~1:4.8) Table 95 Indoor toxicity and combined effect evaluation of 3-5 mixed bispyribac-sodium on barnyardgrass (A:B=3:1~1:4.8) Table 96 Evaluation of indoor toxicity and combined effects of 3-5 mixed cyhalofop-butyl on Leptochloa chinensis (A:B = 2:1 to 1:24) Table 97 Evaluation of indoor toxicity and combined effects of 3-5 mixed metamifop against crabgrass (A:B = 1:1 to 1:24) Table 98 Indoor toxicity and combined effect evaluation of 3-5 mixed quinclorac against barnyard grass (A:B = 3:8 to 1:50) Table 99 Evaluation of the indoor toxicity and combined effects of 3-5 mixed sodium 2-methyl-4-chloropropane on the intestines of snakehead (A:B = 1:8 to 1:120) Table 100 Evaluation of indoor toxicity and combined effects of 3-5 mixed clopyralid on snakehead intestine (A:B = 1:2 to 1:40) Table 101 Evaluation of indoor toxicity and combined effects of 3-5 mixed propanil on barnyard grass (A:B = 1:10 to 1:180) Table 102 Evaluation of indoor toxicity and combined effects of 3-5 mixed clomazone on crabgrass (soil treatment) (A:B = 1:10 to 1:120) Table 103 Indoor toxicity and combined effect evaluation of 3-5 mixed safflower phosphorus on barnyardgrass (soil treatment) (A:B = 1:1 to 1:36) Table 104 Evaluation of indoor toxicity and combined effects of 3-5 mixed amiloride on crabgrass (A:B = 1:4 to 1:36) Table 105 Evaluation of indoor toxicity and combined effects of 3-5 mixed indolepyridinic acid on Glechoma longituba (A:B = 1:1 to 10:1) Table 106 Evaluation of indoor toxicity and combined effects of 3-5 mixed aminopyralids on goosegrass (A:B = 1:4 to 1:96) Table 107 Evaluation of indoor toxicity and combined effects of 3-5 mixed clopyralid against barnyardgrass (A:B=1:2~15:1) Table 108 Evaluation of indoor toxicity and combined effects of 3-5 mixed halauxifen-methyl on Veronica odorata (A:B = 40:1 to 1:1) Table 109 Evaluation of indoor toxicity and combined effects of 3-5 mixed cyclopyranil on Setaria viridis Table 110 Indoor toxicity and combined effect evaluation of 3-5 mixed fluazifop to goosegrass (A:B = 1:2 to 20:1) Table 111 Evaluation of indoor toxicity and combined effects of 3-5 mixed fluazifop-butyl on goosegrass (A:B=2:1 to 1:16) Table 112 Evaluation of indoor toxicity and combined effects of 3-5 mixed dicamba on Veronica officinalis (A:B = 1:2 to 1:24) Table 113 Evaluation of indoor toxicity and combined effects of 3-5 mixed bentazone on snakehead intestines (A:B = 2:1 to 1:24) Table 114 Evaluation of indoor toxicity and combined effects of 3-5 mixed triclopyr against Xanthium sibiricum (A:B=1:1~1:20) Table 115 Evaluation of indoor toxicity and combined effects of 3-5 mixed glufosinate on crabgrass (A:B = 1:3 to 1:96) Table 116 Evaluation of indoor toxicity and combined effects of 3-5 mixed glyphosates on crabgrass (A:B = 1:4 to 1:96) Table 117 Evaluation of indoor toxicity and combined effects of 3-5 mixed high-efficiency haloxyfop-ethyl against crabgrass (A:B=2:1~1:4) Table 118 Evaluation of indoor toxicity and combined effects of 3-392 mixed with pyraclostrobin against barnyardgrass (A:B = 3:1 to 1:16) Table 119 Evaluation of indoor toxicity and combined effects of 3-392 mixed with oxadiazon against barnyard grass (A:B = 2:1 to 1:8) Table 120 Indoor toxicity and combined effect evaluation of 3-392 mixed with oxaziclomefone against barnyard grass (soil treatment) (A:B = 1:6 to 6:1) Table 121 Indoor toxicity and combined effect evaluation of 3-392 mixed mesotrione on barnyard grass (soil treatment) (A:B = 1:1 to 1:12) Table 122 Evaluation of indoor toxicity and combined effects of 3-392 mixed with atrazine on Digitaria sanguinalis (soil treatment) (A:B = 3:10 to 1:80) Table 123 Indoor toxicity and combined effect evaluation of 3-392 mixed with penoxsulam against barnyard grass (A:B = 3:1 to 1:4.8) Table 124 Indoor toxicity and combined effect evaluation of 3-392 mixed with bispyribac-sodium on barnyardgrass (A:B = 3:1 to 1:4.8) Table 125 Evaluation of indoor toxicity and combined effects of 3-392 mixed with cyhalofop-butyl on Leptochloa chinensis (A:B = 2:1 to 1:24) Table 126 Evaluation of indoor toxicity and combined effects of 3-392 mixed with metamifop against crabgrass (A:B = 1:1 to 1:24) Table 127 Evaluation of indoor toxicity and combined effects of 3-392 mixed with quinclorac against barnyardgrass (A:B = 3:8 to 1:50) Table 128 Indoor toxicity and combined effect evaluation of 3-392 mixed with sodium 2-methyl-4-chloropropane on snakehead intestine (A:B = 1:8 to 1:120) Table 129 Evaluation of indoor toxicity and combined effects of 3-392 mixed with clopyralid on the intestines of snakehead (A:B = 1:2 to 1:40) Table 130 Evaluation of indoor toxicity and combined effects of 3-392 mixed propanil on barnyard grass (A:B = 1:1 to 1:180) Table 131 Evaluation of indoor toxicity and combined effects of 3-392 mixed with clomazone on crabgrass (soil treatment) (A:B = 1:10 to 1:120) Table 132 Indoor toxicity and combined effect evaluation of 3-392 mixed with safflower on barnyardgrass (soil treatment) (A:B = 1:1 to 1:36) Table 133 Evaluation of indoor toxicity and combined effects of 3-392 mixed with amiloride on crabgrass (A:B = 1:4 to 1:96) Table 134 Evaluation of indoor toxicity and combined effects of 3-392 mixed indolepyridinic acid on Glechoma longituba (A:B = 1:1 to 10:1) Table 135 Indoor toxicity and combined effect evaluation of 3-392 mixed with aminopyralid on goosegrass (A:B = 1:4 to 1:36) Table 136 Evaluation of indoor toxicity and combined effects of 3-392 mixed with clopyralid against barnyardgrass (A:B = 5:1 to 15:1) Table 137 Evaluation of indoor toxicity and combined effects of 3-392 mixed with halauxifen-methyl on Veronica odorata (A:B = 1:1 to 40:1) Table 138 Indoor toxicity and combined effect evaluation of 3-392 mixed with cyclopyranil on Setaria viridis (A:B = 3:1 to 1:16) Table 139 Indoor toxicity and combined effect evaluation of 3-392 mixed fluazifop to goosegrass (A:B = 20:1 to 1:2) Table 140 Evaluation of indoor toxicity and combined effects of 3-392 mixed with fluazifop-butyl on goosegrass (A:B=2:1~1:16) Table 141 Evaluation of indoor toxicity and combined effects of 3-392 mixed dicamba on Veronica officinalis (A:B = 1:2 to 1:24) Table 142 Evaluation of the indoor toxicity and combined effects of 3-392 mixed with bentazone on snakehead intestines (A:B = 2:1 to 1:8) Table 143 Evaluation of indoor toxicity and combined effects of 3-392 mixed with triclopyr against Xanthium sibiricum (A:B = 1:1 to 1:20) Table 144 Evaluation of indoor toxicity and combined effects of 3-392 mixed glufosinate on crabgrass (A:B = 1:4 to 1:96) Table 145 Indoor toxicity and combined effect evaluation of 3-392 mixed glyphosate on crabgrass (A:B = 1:4 to 1:96) Table 146 Evaluation of indoor toxicity and combined effects of 3-392 mixed with highly effective haloxyfop-ethyl against crabgrass (A:B = 1:0.6 to 1:4) Table 147 Mass ratio of components A and B Table 148 Combined action of components A and B on weeds The above composition was subjected to biological activity assays, and the results showed that the compound of formula (I) mixed with the above-mentioned various herbicides B had a significant synergistic effect on the test weeds. The composition mixed with safener C had an unexpectedly significant improvement in crop safety and weed activity. Example 11 Field efficacy test Test crop: Direct-seeded rice Application period: 15 days after sowing, when rice has 3 leaves and 1 heart, and when weeds have 3-4 leaves. Experimental Treatment: Field trials were conducted using the herbicide compositions provided in the examples. Field trials were conducted primarily in Harbin, Heilongjiang Province; Shanghai; Nanjing, Jiangsu Province; and Yangzhou, Jiangsu Province. The rice varieties used in these trials were Suijing 309, Jingdao 147, Nanjing 46, and Huanghuazhan. Select the plot with heavy weeds and complex grass phase, with a height of 20m 2 For one plot, each treatment was repeated 3 times. The stems and leaves were sprayed 15 days after direct seeding. Water was applied 48 hours after spraying and the water was retained for 5-7 days. 30 days after treatment, observe the treated and control areas, count the number of weeds, and calculate the weed control efficacy per plant in the treated areas. Calculate the plant protection efficiency (%). Plant control effect (%) = (number of control weeds - number of treated weeds) / number of control weeds × 100 Bioassay results showed that this type of compound had a significant synergistic effect when mixed with a variety of herbicides against grass weeds, broadleaf weeds and sedge weeds. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several changes and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A herbicidal composition comprising a 4-methylsulfonylbenzamide compound having a sulfur-containing substituent at position 3 of formula (I), a stereoisomer thereof, or an agriculturally acceptable salt thereof, characterized in that: The composition comprises active ingredient A and active ingredient B, wherein the mass ratio of active ingredient A to active ingredient B is 1:500-500:1; or comprises active ingredient A, active ingredient B and active ingredient C; wherein active ingredient A is at least one compound represented by formula (I), active ingredient B is at least one compound having herbicidal activity different from the compound represented by formula (I), a salt thereof or a derivative thereof; and active ingredient C is a safener compound, a salt thereof or a derivative thereof. The structure of active component A is as follows: in: Q stands for Q3, which is as follows: X stands for chlorine; R1 represents CH2CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH(CH3)CH2CH3, cyclopropylmethyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, CH2CF3, CH2CH2Cl, CH2CH(CH3)2, C(CH3)3, CH2CH2CH2CH2CH3, CH(CH3)CH2CH2CH3, CH2CH2CH(CH3)2, C(CH3)2CH2CH3, CH2CH(CH3)CH2CH3, CH2CF2H, CH2CFH2, CF2CF3, CF2CF2CF3, CH2CF2CF3, CH2CH2CF3, CH2CH2CF2H, CH2CH2CFH2, CF2CFHCF3, CHClCH3, CH2CF2H, CH2CFH2; R2 represents hydrogen, methyl, ethyl or CH(CH3)2; Rz represents hydrogen, methyl, ethyl, isopropyl, cyclopropyl, CH2CH2CH3, CF3 or cyclobutyl; n represents 0, 1, or 2; When n represents 1, the sulfur atom connected thereto may be selected from R type or S type, or a mixture of the two, wherein the ratio of R to S in the mixture is 1:99 to 99:1; The active component B is selected from the following types of herbicides: b1) Acetyl-CoA carboxylase inhibitor herbicides; b2) Herbicides that are acetolactate synthase or acetylhydroxybutyrate synthase inhibitors; b3) Photosystem II inhibitor herbicides; b5) Protoporphyrinogen oxidase inhibitor herbicides; b6) Phytoene dehydrogenase inhibitor herbicides; b7) herbicides of the type of 4-hydroxyphenylpyruvate dioxygenase inhibitors; b9) 5-enolpyruvylshikimate-3-phosphate synthase inhibitor herbicides; b10) Glutamine synthetase inhibitor herbicides; b12) Herbicides that inhibit microtubule organization and tissue development; b13) Cell division inhibitor herbicides; b14) Cellulose synthesis inhibitor herbicides; b15) Oxidative phosphorylation uncoupler herbicides; b16) Lipid synthesis inhibitor herbicides; b17) Herbicides that interfere with plant hormone balance; The active component C is a safener compound, a salt thereof or a derivative thereof, selected from the following types of safeners: c1) Safeners for chloroamide herbicides; c2) Safeners for heterocyclic herbicides; c3) Pyrazole herbicide safeners; c4) Isoxazole herbicide safeners; c5) Cyclopropane herbicide safeners; c6) Amide herbicide safeners; c7) triazole herbicide safeners; c8) Pyrimidine herbicide safeners; c9) Carboxylic anhydride herbicide safeners; c10) Benzamide herbicide safeners.

2. The herbicidal composition according to claim 1, wherein: The active component B in the composition is selected from the group consisting of quizalofop-p-ethyl, high-efficiency fluazifop-p-ethyl, fluazifop-p-ethyl, cyhalofop-butyl, quizalofop-p-ethyl, fluazifop-p-ethyl, cyhalofop-butyl, quinazolin-butyl, quizalofop-p-ethyl, fluazifop-p-ethyl, fluazifop-p-ethyl, pentocarb, sethoxydim, cloproxydim, cycloxydim, clethodim, benzothiocarb, butyclothiocarb, pyraclostrobin, cypermethrin, phenylacetamide, clodinafop-butyl, pinoxaden, oxadiazolamide, oxadiazol-butyl, oxadiazol-butyl, metsulfuron-methyl, chlorimuron-methyl, pyrazosulfuron-methyl, thifensulfuron-methyl, ethoxysulfuron-methyl, sulfonesulfuron-methyl, sulfonsulfuron-methyl, mesosulfuron-methyl, tetrazosulfuron-methyl, bensulfuron-methyl, chlorimuron-methyl, flazasulfuron-methyl, fluazifop-methyl, formamidosulfuron-methyl, chlorimuron-methyl, pyrazosulfuron-methyl, Azosulfuron-methyl, iodosulfuron-methyl sodium salt, nicosulfuron, pyrimidisulfon-methyl, cyprosulfuron, prosulfuron, sulfosulfuron, ether bensulfuron-methyl, bensulfuron-methyl, trifloxysulfuron, trifloxysulfuron, monosulfuron, iofensulfuron, trifloxysulfuron, promethazine, imazapyr, imazapyr, imazapyr, imazapyr, imazapyr, quinolinic acid, pyrasulfuron, bispyribac, sulfosulfuron, sulfosulfuron Oxazolin, penoxsulam, pyrifos, bispyribac, pyrimidoxime, cypermethrin, pyrimidoxime, fluazifop-butyl, fluazifop-butyl, imazethapyr, methoxysulfuron, chlorpyrifos, chlorpyrifos, bispyribac-butyl, pyrimidoxime, atrazine, prometryn, metribuzin, terbuthyl, terbuthylazine, cyanazine, propazine, simazine, atrazine chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos, chlorpyrifos oro-5-(3-methyl-2,6-dioxo-4-(trifluoromethyl)-3,6-dihydropyrimidin-1(2H)-yl)phenyl)-5-methyl-4,5-dihydroisoxazole-5-carboxyla te, ethyl(5R)-3-(2-chloro-4-fluoro-5-(3-methyl-2,6-dioxo-4-(trifluoromethyl)-3,6-dihydropyrimidin-1(2H)-yl)phenyl)-5-methyl-4,5-dihydroisoxazole-5-carboxylate, fluazifop-butyl, trifluoperazine, benitosulfuron, cyclopyranil, epyrifenacil, fluazifop-butyl, fluazifop-butyl, fluazifop-m, fluazifop-butyl, beflubutamid-M, mesotrione, cyclamate, bicyclazone, furazolidone, lancotrione, sulfaquinoxaline, fluazifop-butyl, fenpyralid, pyraclostrobin, pyraclostrobin, pyraclostrobin, pyraclostrobin, tolpyralate, isoxathiocarb, cyclazone, triazosulfuron, fluazifop-butyl, fluazifop-m, fenquinotrion e, quinclorac, methylquinclorac, pyraclostrobin, isocyanate, dichloroisocyanate, oxaziclorac, bromoquinclorac, fluazifop, fluazifop, glyphosate, glufosinate, glufosinate, bialaphos, sulfamethoxam, butachlor, fluthiocarb, fluthiopyralid, fluazifop, ethylbutylfluanid, chlorethylfluanid, aminsulfuron, pendimethalin, fluthiocarb, aminophosphine, methylaminophosphine, dimethoate, propanamide, biphosphine, chlorpropamide, chlorpropamide, methylaminophosphine, dimethoate, propanamide, chlorpropamide, methylaminophosphine, dimethoate, propanamide, chlorpropamide, methylaminophosphine, strong fluyanine, propanamide, butachlor, pretilachlor, mefenacet, silyphos, flufenacet, sulfonepyraclostrobin, propylpyraclostrobin, acetochlor, piperaphos, acetochlor, amidochlor, ketone, dimethenamid, fine dimethenamid, Methiachlor, pyraclostrobin, isopropylamine, pethoxamid, promethachlor, isopropylamine, mefenacet, bisbenzamide, naproxenamide, naproxenoxy propam, tetrazolam, mefenacet, fenoxasulfone, ipfencarbazone, indaziflam, methiozolin, naproxenamide-M, chlorsulfuron, dichlorvos, chlorfenapyr, chlorfenapyr, indaziflan, isoxacylamine, triazinon, dinoseb, teroseb, butane, fenacet, fenacet, fenacet, fenacet, wild wheat chlorpyrifos, fenacet, sulfenthion, cyclohexane, furofuram, ethoxyfuran, soda, cypermethrin, cypermethrin, tetrafluoropropionic acid, fenacet, chlorpyrifos, 2,4-D 、2-Methyl-4-chloro-4-nitropropane, dicamba, dicamba, amiloride, clofopyralid, clofopyralid ethyl ester, quinclorac, quinclorac-butyl, clofopyralid, clofopyralid, triclopyralid, clopyralid, clomeclorac, chlorpyrifos, cyprodinil, chloranil, chlorfenapyr ...

3. The herbicidal composition according to claim 2, wherein the active component B is selected from cyhalofop-butyl, metamifop-butyl, pyrazosulfuron-methyl, penoxsulam, bispyribac-butyl, pyrazosulfuron-methyl, promethazinesulfuron-methyl, haloperidol, fluazifop-butyl, quinclorac, 2-M-4-chloro-4, 2,4-D, clofopyralid, clofopyralid-butyl, dicamba, quinclorac, clopyralid, triclopyralid, dichloroquinoline, chlorpyrifos ... Pendimethalin, butofenol, cypermethrin, cypermethrin, triazole-sulfuron, bifenazolin, cypermethrin, mesotrione, bifenazolin, furazolidone, fluazifop, furazolidone, flubutamide, mesotrione, cypermethrin, cypermethrin, oxadiazon, oxadiazon-propynyl, bensulfuron, oxyfluorfen, cypermethrin, butachlor, pretilachlor, mefenacet, cypermethrin, isopropylamine, sulfonepyrazone Cyclodazole, cypermethrin, isoproturon, amitriptyline, bentazone, propanil, metribuzin, atrazine, bromoxynil octanoate, prometryn, bromoxynil, terbuthylazine, clomazone, bromoxanil, dichloroisothiazone, oxaziclomefone, cyproconazole, pyrimidine oxaflor, ethoxysulfuron, fluazifop, cyclopyranil, pyraclostrobin, benzylsulfuron-methyl, cyproconazole, mesotrione, fluazifop-butyl Indolepyralid, fluazifop-butyl, fomesafen, lactofen-butyl, herbicide, glufosinate, glyphosate, high-efficiency fluazifop-butyl, sulfentrazone, imazapic acid, amilpyisulfuron, fluazifop-butyl, fluazifop-butyl, iodosulfuron-methyl sodium salt, methoxyfen-butyl, fluazifop-butyl, fenoxaprop-butyl, clofapyralid, imazapic acid, imazapic acid, imazapic acid, clodinafop-butyl, clethodim, nicosulfuron, and pinoxaden.

4. The herbicidal composition according to any one of claims 1 to 3, wherein the active component C is at least one safener.

5. The herbicidal composition according to claim 4, wherein the active component C is selected from fenoxaline, fenoxalic acid, cyprosulfamide, cyprosulfamide, dicyclonon, dietholate, fenoxazole, fenoxadim, fenoxachlor, fenoxachlor, fenoxachlor, fenoxafuran, isoxadiazole, pyrrolidone, mephenate, naphthalic anhydride, fenoxadim, metcamifen, 4-dichloroacetyl-1-oxa-4-azaspiro[4.5]decane, 2,2,5-trimethyl-3-dichloroacetyl-1,3-oxazolidine (R-29148) or N-(2-methoxybenzoyl)-4-[(methylaminocarbonyl)amino]benzenesulfonamide.

6. The herbicidal composition according to claim 1, wherein: The mass ratio of the active component A, the active component B and the active component C in the composition is 1-500:1-500:1-500.

7. The herbicidal composition according to claim 6, wherein: The mass ratio of the active component A, the active component B and the active component C in the composition is 1-300:1-300:1-300.

8. The herbicidal composition according to claim 1, wherein: The mass percentage of A and B in the herbicidal composition accounts for 1-95% of the total amount.

9. The herbicidal composition according to claim 8, characterized in that The mass percentage of A and B in the herbicidal composition accounts for 10-80% of the total amount.

10. The herbicidal composition according to claim 1, wherein: Q in the compound of formula (I) is selected from Q3; X is selected from chlorine; R1 is selected from CH2CH2CH3, CH(CH3)2, CH2CH2CH2CH3, CH(CH3)CH2CH 3、 Cyclopropylmethyl, cyclopropyl or CH2CF3; R2 is selected from hydrogen; R z is selected from hydrogen, methyl, ethyl or cyclopropyl; n is selected from 0, 1 or 2; When n is selected from 1, the sulfur atom connected thereto can be selected from R type or S type, or a mixture of the two, and the ratio of R to S in the mixture is 1:99 to 99:

1.

11. The herbicidal composition according to claim 1, wherein: In the compound of formula (I): Q is selected from Q3; X is selected from chlorine; R1 is selected from CH2CH2CH3 or CH(CH3)2; R2 is selected from hydrogen; Rz is selected from methyl, ethyl or cyclopropyl; n is selected from 2.

12. Use of the herbicidal composition according to claim 1 for controlling weeds.

13. The use according to claim 12, characterized in that: The herbicidal compositions are used for selectively controlling weeds in useful crops.

14. The use according to claim 12, characterized in that: The useful crops are transgenic crops or crops processed by genome editing technology.

15. The use according to claim 12, characterized in that: The herbicidal composition is used for controlling annual and perennial weeds, and resistant or tolerant weeds in crop fields, garden fields or non-cultivated lands.

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