This usually occurs when soil sticks between wider fluted undulations at the edge of the coulter. A leading single coulter to cut residue is usually not necessary for the staggered or offset seed opener. Figure 3 not available. Types of row cleaning devices. Vertical-discs are two discs operating at angles to the travel direction, with leading edges either even or staggered.
Discs vary in size and shape of the blade and edge.
Edges may be smooth or noticed or may have fingers or even brushes. Row cleaners are mounted by various arrangements to the frame, parallel linkage, or planter unit. Row cleaners should remove a uniform amount of residue in the row area. Adjustment and maintenance of operating depth of the row cleaners is important. In most cases, adjust row cleaners to skim the soil surface, removing mostly residue and little additional soil.