The invention relates to a sowing device controller for controlling a sowing device (3), comprising a sowing device monitoring device (12) , which has an analyzing unit , for ascertaining the occupancy of seed holes (15) of a rotating seed disk (9) with seeds during operation. The analyzing unit provides an actual occupancy value of the occupancy of one of more seed holes (15) , and the sowing device controller is designed to control actuating elements influencing the occupancy dependent on a deviation of the actual occupancy value from a stored target occupancy value of the occupancy of one or more seed holes (15). The invention further relates to a sowing device and a single- grain sowing machine.
