A vehicle is configured to operate next to a harvesting machine, and comprises a first receptacle suitable to receive crops delivered by the harvesting machine through a delivering conveyor while the vehicle is driving alongside the harvesting machine during a mobile harvesting operation and a cleaning device adapted to receive the received crops of the first receptacle and automatically separate the received crops in excess materials and cleaned crops. The vehicle is operated such that the excess materials of the cleaning device are scattered on the agricultural field while the vehicle is driving along the agricultural field and in that the vehicle further comprises a second receptacle adapted to buffer the cleaned crops.
