A plough assembly (10) to be fixed to a plough frame including a transverse beam (11). The assembly (10) includes a plough shank (13) with a leading surface (14) that is generally upwardly oriented. The lower end of the shank (13) is provided with a digging adapter (24) to which there is attached a digging blade (28). Located behind the adapter (24) is a fertilizer delivery tube (33), while behind the tube (33) is a seed delivery tube (42). A seed bed is formed by a tool (43) that is in front of the tube (42), while behind the tube (42) is a press wheel (39).
