Contractor Bijker Dozerrental of Rouveen, The Netherlands seen busy with deep ploughing using a Caterpillar D8H. D8E and D6R with a combined horsepower of 650HP! The plough is self-build and goes to two meters deep. The top layer 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.