The novel herbicidally active compound combinations comprising (a) anarylsulphonylaminocarbonyltriazolinone of the formula (I)(see formula I)(in which R1, R2, R3 and R4 are each as defined in the description) and/or asalt of acompound of the formula (1) (= "active compound of Group 1") and (b) one ormorecompounds from a second group of certain known herbicides (= "active compoundofGroup 2") exhibit at certain weight ratios synergistic effects and can beemployed asselective herbicides in various crops of useful plants;typical examples are active compound combinations from the Na salts of thecompoundsof the formula (I) where R1 = CH3, R2 = OC3H7, R3 = COOCH3 and R4 = H(I-1) orwhereR1 = CH3, R2 = OCH3, R3 = OCF3 and R4 = H(I-2) as active compound of Group 1.