The Konings Rowfertilizer puts the fertilizer only where it is needed. This ensures big savings on the amount of fertilizer per hectare. The KONINGS ROWFERTILIZER mounts directly between the tractor and the KONINGSPLANTER without any adjustment to the machine. The potato planter will be mounted 20 cm further from the tractor. The drive comes direct from the wheels of the potato planter, via a closed chain transmission box. This makes the amount of fertilizer independent of the driving speed. The transmission can easily be adjusted by flipping one of the gearboxes.