The metering wheel (3) has conveyor elements (27) that are arranged at the outer peripheral surface (2) for conveying seed and/or fertilizer by rotation of a red grip in rotation direction (R). The conveying elements are provided with a side wall (27s) facing a boundary wall (19) of metering device. The side wall is parallel to angled wall portion of conveyor elements in rotational direction. An independent claim is included for distributor for use with seed/fertilizer metering device.