Deep ploughing and field leveling using two Case IH Quadtracs 450 & 375 from contrator Gebr. Bork of Slootdorp in noth of the Netherlands. This company owns the only two Quadtracs in the Netherlands. First we see the field is ploughed using a self-made deep plough, witch is capable of ploughing 120cm deep. The top layer of clay soil is ploughed under and the lighter sand and peat soil is brought to the surface to make the land more suitable for other crops and easier to work on. After ploughing the field needs to be leveled for improved water coverage and drainage using a BOS Combo-Dozer scraper.