A system for controlling the speed of harvested crop as it is discharged from a crop accumulator onto a field comprising a discharge mechanism for imparting a desired rearward travel speed to the harvested crop as it is being discharged from the crop accumulator and a speed measurement device for measuring forward travel speed of the crop accumulator. A processor is in communication with the discharge mechanism and the speed measurement device and is operable to adjust the discharge mechanism for imparting the desired rearward travel speed or the forward travel speed of the crop accumulator, to discharge harvested crop with a rearward travel speed that is substantially equal to the forward travel speed such that the harvested crop has a substantially net zero speed as it contacts the ground.