In this experiment two levels of types fuel diesel (1 and 2), three levels of the angles of cover plate (45, 60 and 75) ° and three levels of the tractor forward speeds (2.51, 4.35 and 6.87) km/hr were investigated, the experiment studied impact of these factors on the noise, slipping, fuel consumption and productivity. The experiment was conducted in a field of the College of agricultural engineering sciences at the University of Duhok. The tractor type BAŞAK model 2073, with the power 53 HP (38.96 kW) and horizontal rotary plow was used. The results showed that the difference in between the type of fuel, angles of cover plate and forward speed were significant differences. The interaction between the diesel fuel 2, angle of cover plate 75° and forward speed 2.51 km/hr recorded the lowest values for noise, slipping and fuel consumption (97.2 dB,13.3% and 6.0 L/ha) respectively. The same treatment gave highest productivity 0.068 ha/hr.