A sowing machine which includes a container (3) and a frame (6, 7) connected thereto, a drawing device and rear wheel assemblies for carrying and moving the container and the frame, and coulter assemblies attached below the container is characterised in that the coulter assemblies are divided to two or more sections for producing separate coulter segments (13A, 13B) provided with wheels (16a, 16b, 16c, 16d 16e, 16f, 16g, 16h) at the front and at the rear and attached on the frame of the sowing machine with separate suspensions (18, 20 23a, 23b, 30a, 30b 23e, 23f, 30e, 30f) so that the segment is allowed to be set on the wheels according to the soil surface both longitudinally and laterally (L, W).A sowing machine which includes a container (3) and a frame (6, 7) connected thereto, a drawing device and rear wheel assemblies for carrying and moving the container and the frame, and coulter assemblies attached below the container is characterised in that the coulter assemblies are divided to two or more sections for producing separate coulter segments (13A, 13B) provided with wheels (16a, 16b, 16c, 16d 16e, 16f, 16g, 16h) at the front and at the rear and attached on the frame of the sowing machine with separate suspensions (18, 20 23a, 23b, 30a, 30b 23e, 23f, 30e, 30f) so that the segment is allowed to be set on the wheels according to the soil surface both longitudinally and laterally (L, W).La présente invention concerne un semoir qui comprend un conteneur (3) et un châssis (6, 7) relié au conteneur, un dispositif de traction et des ensembles roues arrières permettant de porter et de déplacer le conteneur et le châssis, et des ensembles coutres attachés sous le conteneur, caractérisés en ce que les ensembles coutres sont divisé en au moins deux sections permettant dobtenir des segments coutres séparés (13A, 13B) munis de roues (16a, 16b, 16c, 16d 16e, 16f, 16g, 16h) à lavant et à larrière et attachés au bâti du semoir avec des suspensions séparées (18, 20 23a, 23b, 30