The values of mean power in the drawbar showed significant difference for the velocity treatment, and the velocity of 6.8 km h-1 required higher power (19.91 kW), almost 6 kW more in comparison to the lowest velocity. There was also significant difference between the treatments with different working depths, and the depth of 0.15 m required higher power in comparison to the others (22.99 kW). The power is given by relationship between the velocity and the force in the drawbar; therefore, the increment in velocity leads to a gain of power and force. Thus, the treatments that require more force will require more power, as reported by Silveira et al. (2005), who observed higher requirement of tractor power in the treatments with increase in velocity and force.