| 摘要 |
Novel herbicidal N-cyanopyridazinones of the general formula <IMAGE> in which the radicals R1, R2 and R3 independently of one another denote hydrogen, halogen, amino, nitro, cyano, alkyl, aryl, aralkyl, alkoxy or aryloxy groups, a process for their preparation, a herbicide containing them, and a method of controlling weeds. |
