An analysis the process of harvesting the field of large square bales of plant feed at different traffic pattern loading and transport units. We propose a constructive-technological scheme of additional transport unit for an orderly stacking of bales on the field surface in neat rows across the trajectory of the baler. The calculations of power requirement to drive the baler equipped with an additional transport unit. A technique for determining the area of compacted surface of the field propulsion units for different schemes of traffic during harvesting bales. Calculated the reduction in size of compacted surface of the field at harvest bales of flat series obtained from the use of additional transport unit. The results of energy research and technological performance of his work.