The machine has an injector (6) for supplying a material from a dosing device (4) into a conveyor line (7). The material contained in a storage container (1) is supplied into the conveyor line by the dosing device via a lock of the injector. The dosed material reaches a distributor i.e. baffle head (9), by the conveyor line. An adjustable part of a wall of the injector is adjustably designed for changing a free passage cross-section of the injector. A seed drill coulter (3) is hinged at a frame (2). The conveyor line is attached at a blower (8).
