Urea derivatives of the general formula:
wherein R' stands for a lower alkyl group; and R2 stands for a lower alkyl group or a lower alkoxy group, or a salt thereof, are novel and have a strong herbicidal activity against various species of weeds and shows a very low phytotoxicity to crop plants.
通式如下的
尿素衍
生物
其中,R'代表低级烷基;R2代表低级烷基或低级烷氧基,或它们的盐,是一种新型物质,对各种杂草具有很强的除草活性,对作物植物的植物毒性很低。