A haulage arrangement has a frame configured for operative attachment to a suitable tractor, and defining a tray for operatively receiving particulate material therein. The tray comprises two side walls separated by a loadbearing lower section with a headwall at a head end of the tray and slidably arranged in-between the side walls. Also included is an urger at the head end configured to operatively urge the headwall to slide across the lower section. Arrangement further includes an elastically flexible floor slidably arranged on the lower section and fast at a first end with the headwall, as well as a retractor arranged at an ejection end of the tray and configured to continuously retract a second end of the floor underneath the lower section whilst the headwall is urged. The retractor is further configured to agitate the floor during retraction to counteract adhesion of particulate material ejected from the tray.