The compressed soils can be loosened more intensively with the rotary cultivators. It is suggested to separate stones and the clods in the stony soils and the bigger stones should be removed from the growing zone of potatoes. The horizontal cultivators are more universal, they can be used to loosen and to mulch the soil if is purposeful to use the technology of the harrowing and the multihilling. Thus the space between the rows is compacted by the wheels of the tractors, while number of passes during the potato growing is minimized. The new generation of the tractors with the front and rear linking systems make possible utilization of more perfect combined aggregates in a manner that some of them are mounted on the front of the tractor and others on the rear of the tractor Agriculture gantry has great influence to the soil structure. The paper shows theoretical investigation of possibilities to minimize interaction between the chassis and the soil density using circular and shuttle type gantry modules. investigation also comprises influence of the field's unevenness to curvature of chassis ways and selection of chassis type.