Closed appliance combination, consisting of a ground-working machine driven by power take-off shaft and of a pneumatic seed drill semi-mounted on the ground-working machine and having a supply container and a blower which is arranged under the supply container and has a blower drive shaft which is driven by a branch drive of the gear of the ground-working machine. In order to achieve for the known appliance combination in a simple way a substantially more favourable centre-of-gravity position shifted relative to the tractor, provision is made for the front wall (20) of the supply container (3) to reach at least approximately as far as a vertical plane (21) drawn through the three-point coupling elements (10) of the ground-working machine (1). <IMAGE>
