A metering device used to meter granular distribution goods, for example, seeds or fertilisers for an agricultural distribution machine, the metering device being formed by a rotating cellular roller or metering roller (12, 12'), wherein the rotating cellular roller or metering roller (12, 12') is at least two-part, wherein each of the at least two sections (32, 34) of the rotating cellular roller or metering roller (12, 12') ends in a separate connection line of a duct system leading to two or more distribution units, wherein each of the at least two sections (32, 34) of the rotating cellular roller or metering roller has an own drive unit (18, 19) for an in each instance mutually independent drive speed control, and at least one of the drive units (18, 19) has a data processing device and a positioning system assigned to it, such that the at least two sections (32, 34) of the rotating cellular roller or metering roller (12, 12') are in each instance controllable depending on the particular location coordinates or, as applicable, depending on the position, characterised in that in each instance an analysis of the locations or, as applicable, of the positions where a distribution of distribution goods has already been carried out is performed on the basis of the current or, as applicable, determined position of the agricultural distribution machine by a control program and/or regulation program stored in the at least one data processing device, and in that the particular partial widths of the agricultural distribution machine are switched by the one data processing device and positioning system by the particular drive units of the at least two sections of the rotating cellular roller or metering roller being controlled, in particular, being activated or deactivated. wherein the rotating cellular roller or metering roller (12, 12') is at least two-part, wherein each of the at least two sections (32, 34) of the rotating cellular roller or metering roller (12, 12') ends in a separate connection line of a duct system leading to two or more distribution units, wherein each of the at least two sections (32, 34) of the rotating cellular roller or metering roller has an own drive unit (18, 19) for an in each instance mutually independent drive speed control, and at least one of the drive units (18, 19) has a data processing device and a positioning system assigned to it, such that the at least two sections (32, 34) of the rotating cellular roller or metering roller (12, 12') are in each instance controllable depending on the particular location coordinates or, as applicable, depending on the position, characterised in that in each instance an analysis of the locations or, as applicable, of the positions where a distribution of distribution goods has already been carried out is performed on the basis of the current or, as applicable, determined position of the agricultural distribution machine by a control program and/or regulation program stored in the at least one data processing device, and in that the particular partial widths of the agricultural distribution machine are switched by the one data processing device and positioning system by the particular drive units of the at least two sections of the rotating cellular roller or metering roller being controlled, in particular, being activated or deactivated.