Fig. 6

The change of penetration resistance according to shank and tine type. Ri: rigid type shank, Ss: semi-rigid type shank, Sp: spring type shank, Vb: Vibrating type shank, C: conventional type tine, W: winged type tine.

The change of penetration resistance according to shank and tine type. Ri: rigid type shank, Ss: semi-rigid type shank, Sp: spring type shank, Vb: Vibrating type shank, C: conventional type tine, W: winged type tine.