This document also deals with herbicide ingredients, including a formulated compound (1) and its use in weed control, particularly in the production of useful crops. Claim 1: a formula compound (1) or an agricultural acceptable salt thereof, wherein: R1 is selected from the hydrogen group, and hydrocarbon c83321316c1；cycloalkyl C₃₋₆,C₂₋₆ alkenyl,1. C 83228331 asphalt；haloalkyl C₁₋₆,(Alcoxi C) -alquilo C(C ciclo cycloalkyl) -C₁₋₃ alkyl,Tetrahydropyridine and benzene1. One or more R1 substituted benzene can be selected；R 2 was selected from the formula group (2),(3) Or (4) X1 is n or cr8311831；X2 is n or cr831222；X3 is n or cr8313；X 830808es n or cr8310a；R3: selected from the group consisting of hydrogen, hydroxyl, halogenation, nitric acid, ammonia, cyanogen and hydrocarbyl c83318326；C₁₋₃-alkoxy,cycloalkyl C₃₋₆,C₂₋₆ alkenyl,1. C 83228331 asphalt；haloalkyl C₁₋₆,(alcoxi c83218d. 83316262) - (c83216c lease)(Cicloalquil C) - (alquilo C)1.A.1.a.1.a.2.a.2.c(Alquil C) -S (O) - (alquilo C)(Haloalquil C) -S (O) -C₁₋₃ alkylamino,dialquilamino C y (haloalquil C) -S (O) - (alquilo C)R⁴ is selected from the group consisting of hydrogen, (C₁₋₆ alkyl) carbonyl-,arylcarbonyl-,(Alcoxi C) carbonil-1.A.1.a.1.a.2.a.2.c1.A.1.1.a.1.1.a.1.1.a.1.1.b.1.1.bOne or more R1 can be chosen to replace these arilo groups；R⁵ is selected from the group consisting of hydroxyl, halogen, C₁₋₆ alkyl,cycloalkyl C₁₋₆,haloalkyl C₁₋₆,C₂₋₆ alkenyl,haloalkenyl C₂₋₆,1. C 83228331 asphalt；(Alcoxi C) -(Alqueniloxi C) -(C ciclo cycloalkyl) - (C₁₋₃ alkyl) -,(Alcoxi C) - (alquil C) -(Alcoxi C) - (alcoxi C) -(Alcoxi C) - (alcoxi C) - (alquil C) -(Haloalcoxi C) -(Haloalcoxi C) - (alquil C) -1.A.1.a.1.a.2.a.2.c(Haloalquil C) -S (O) -arilo aril-S (O) -Isopropene, isoacrylonitrile-s (o)Ariloxi...aril- (alquil C) -aril- (alcoxi C) -Straight ringheterocyclyl- (C₁₋₃ alkoxy) - (C₁₋₃ alkyl) -,a. Hydrogen poisoning - (alcoxic c8321i83331)；(Alcoxi C) carbonil-(Alcoxi C) carbonil- (alcoxi C) -(lease c83218c83183323) -,(Dialquilam
