PROBLEM TO BE SOLVED: To set a highly efficient travelling route regardless of the shape or size of a field, and to continuously fertilize the field while setting the travelling route.SOLUTION: The fertilizing apparatus executes such control as: to set a reference line L0 connecting a first set point P1 and a second set point P2； to set a second headland travelling route L12 opposite and parallel to the reference line L0； to set a third set point P3 on the second headland travelling route L12； and to set a position of the second headland travelling route L12 by setting the third set point P3. The fertilizing apparatus calculates the distance between a first headland travelling route L11 and the second headland travelling route L12 and calculates an unfertilized portion in a fertilizing range B1 between the first headland travelling route L11 and the second headland travelling route L12 to set a travelling route L with a headland travelling route L1 and an inner travelling route L2.
