LOGISTICS SYSTEM FOR THE PROCESSING OF BIOMASS RESULTING FROM PRUNING THE VINE IN THE MURFATLAR VINEYARD

In the technological process of maintaining grapevine plantations, an important role is played by the winter pruning processes that are carried out during the vegetative rest period. As a result, a large amount of biomass that can be exploited by winegrowers can be used to obtain industrial bio-fuel or used as a source of energy in its own regime to reduce heating costs in the cold season. The experiment was carried out on four varieties of economic interest from the Murfatlar vineyard: Fetească neagra, Cabernet Sauvignon, Sauvignon blanc and Fetească regală. Several factors were analyzed: the average biomass removed from 30 vines of each variety, the method of biomass harvesting, the time and fuel consumption per hectare, the average weight of tire biomass before and after drying and the total mass obtained after drying for each variety. The results showed weight differences between varieties. For the Fetească neagra variety, the weight at the time of collection was 645.84 kg/ha, for the Fetească regală variety, the weight reached 155.16 kg/ha. In the conventional way, thefuel consumption following the wood material collection operations reached 11.6 liters per hectare, while, through the baling and transport process, the consumption was 8.3 L/ha, registering a difference of 3.3 L/ha. After storage and drying, differences in moisture loss were recorded, thus in Fetească neagră the moisture decreased by a percentage of 24.573%, and in Fetească regală which recorded a loss of 33.657% of the initial weight. The average collection time was 2 hours and 24 minutes per hectare and did not show significant differences between varieties because the slope and elevation are tire same for all the varieties examined.