A plow apparatus has a share to cut soil into clods, a moldboard connected to the share to turn over the clods, a beam connecting the moldboard to a motor vehicle, a vibrator assembly connected to the moldboard so as to vibrate the moldboard, a force sensor connected to the beam so as to detect a plowing force, and a controller connected to the force sensor and the vibrator assembly so as to control a vibration of the vibrator assembly according to a force value detected by the force sensor.