|Riassunto in Inglese:|
The harvesting chain comprehensive of the Claas Jaguar 850 equipped with HS-2 head for short rotation forestry and three loading charts towed by tractors has been tested aiming at evaluating the performance, the harvesting cost and the environmental impact on the agricultural soil and the surrounding area.
The harvester, working at a operative speed of 0,611 m/s (2,2 km/h) reached an operative working capacity of 0,78 ha/h. As the yielded resulted in 38,53 t/ha the hourly operative production was 30,03 t/h. The total losses resulted in 0,61 t/ha of which 0,52 t/ha were represented by plants cut and not harvested, 0,07 t/ha by branches, e 0,02 t/ha chipped material loose during the unloading. The total loose resulted l’1,56 % of the harvestable product. The above resulted to be 39,14 t/ha which correspond to 17,65 t/ha dry matter. The harvesting cost of the single harvester resulted in 69,60 €/h , corresponding to 89,31 €/ha. The harvesting chain total cost resulted in 144,62 €/h corresponding to 185,57 €/ha.
The chain harvesting cost referred to the harvested product unit resulted 4,82 €/t raw material.