A spreader assembly comprising: a frame having a longitudinal axis at least two bins mounted to the frame, two of the at least two bins being disposed sequentially along the longitudinal axis and each including a movement imparting assembly oriented substantially parallel to the longitudinal axis of the frame and being configured to advance material lengthwise in opposed directions toward adjacent ends of the two bins and at least one discharge movement imparting assembly mounted to the frame, oriented substantially perpendicularly to the longitudinal axis of the frame and being configured to receive material conveyed by at least one of the two bin movement imparting assemblies and advance the material towards a lateral end of the frame.