Coulter arrangement

The coulters are arranged in four rows with a tine spacing of 18.75 cm or in three rows with a tine spacing of 25 cm and in such a way that continuous open “tunnels” of approx. 75 cm are provided between them. This principle allows a relatively narrow coulter spacing (18.75 cm or 25 cm) for quick blanket coverage of the crop (a full canopy) and yet reduces the danger of blockage by any large volumes of straw at the same time.