1. The velocity of 6.8 km h-1 promoted lower operational consumption of the tractor-seeder set.
2. The association of the velocity of 6.8 km h-1 (gear L4) with the working depth of 0.05 m promoted better operational performance of the tractor-seeder set.
3. The velocity of 4.8 km h-1 (gear L3) allows higher sowing quality for guaranteeing good seed deposition.