| Popis: |
A study evaluated the performance of traditional and alternative implements for deep tillage. Three implements were compared, a plow and two PTO-driven machines (spading machine and rotary chisel), along with two soil depths, 0.30 and 0.40 m, and two forward speeds. Tests were done on a level plot, containing silty-clay soil. Forward speed, wheel slip, fuel consumption, and energy at the PTO and drawbar were measured. Cloddiness of the tilled soil was evaluated. The two PTO-powered implements did not show advantages in terms of capacity, but they gave better results in fuel consumption and in soil pulverization. Economic evaluation showed lower unit costs (17% to 28%) for the spading machine. |
