EN
In the paper, authors have presented possibility of the utilization fallow areas to establish plantations of energetic plants for example willow. Koszalin University of technology has started with the plantation of the willow on the fallow area (52,0 ha) in 2005 year. There have been managed complex of researches - with manure, sediment of the serwers, biomass, economical effects, costs of the establishment.