A plow has a share used to cut the soil, a moldboard connected to the share used to turn over the cods of soil cut by the share, a beam connecting the share-moldboard assembly to a motor vehicle, a vibrator assembly connected to the moldboard to put the share-moldboard assembly into vibration, a force sensor connected to the beam to detect the ploughing force on the beam, a controller connected to the force sensor and the vibrator assembly to control the vibration of the vibrator assembly according to the force value detected by the force sensor, the controller being set in such manner to acquire the force values from the force sensor, pursuing a minimum force through the control of the vibrator assembly.
