Seeding machine (10) row unit (14) comprising first and second seed meters (22a, b) having metering members (24) for moving seeds (S1, S2) sequentially from first and second seed pools; and a seed loader (36, 136, 236) in communication with the first and second seed meters to selectively receive seeds from one or both of the first and second seed meters. The seed loader for transferring a seed in a seeding machine comprises: a housing (48, 148, 248) having a first meter opening (38, 40), a second meter opening (38, 40), and a delivery opening (56) spaced about an axis (B); a hub portion (46, 146, 246a, 246b) configured to rotate within the housing about the axis (B); and a sweeper (49, 149, 249a, 249b) extending from the hub portion, the sweeper including a paddle (50, 150, 250) extending generally away from the hub portion and configured to move from at least one of the first or second meter opening (38, 40) toward the delivery opening (56).