Preparing ground for new planting or for replanting. Old stocks are grubbed up, together with as many as possible of their roots. The soil is broken up, cleaned of weeds and harrowed. A special trenching plough ("défonceuse") is used, pulled by either a tractor or a winch. In Burgundy, trenching is done to a depth of 0.4-0.5 metre.
Related words Planting-out