A row unit (14) for a seeding machine (10) comprising: a frame (18)； first and second seed meters (22a, 22b) coupled to the frame (18), the first and second seed meters having first and second metering members (24) for singulating seeds (S1, S2)； a conveyor (32) having a conduit (34) defining a path for receiving seeds from the first and second seed meters and configured to discharge the seeds from the seeding machine； and a wall (177, 277) movably mounted with respect to the frame between a first position and a second position, wherein either in the first position the wall intersects the path of the conduit for guiding a seed into the conduit, and in the second position the wall is spaced from the path of the conduit or in the first position the wall enters an inner region of the conduit for guiding a seed securely into the conduit, and in the second position the wall is disposed adjacent an edge of the conduit.
