Trailer apparatus of large swath-width for agricultural work has soil-working or sowing elements able to be retracted by setting elements

摘要

The trailer apparatus has side frames (6) carrying soil-working or sowing elements (7), which can be retracted towards the side frames by setting elements (20). The sowing elements are attached to the side frames at the level of buried guide elements (19) digging into the soil. The latter can be retracted towards the side frames.