The present document shows a method of controlling a feed device in an agricultural implement, for feeding granules from a primary distributor (5) to at least two singulators (1), each comprising a granule buffer space (14) and a granule outlet (12). The method comprises receiving a granule feed-out rate target value, controlling a granule feed-out rate of the primary distributor (5) on the basis of the granule feed-out rate target value, and individually controlling a granule feed-out rate of each of the singulators (1) on the basis of the granule feed-out rate target value. The application also comprises an agricultural implement.