Short rotation forestry provide a large yield of biomass, does not interfere with the natural forests and also offer relief from natural forests. These crops represent an important source of biomass for large users, such as remotesystems and larger power plants. Suitable locations for fast-growing tree species plantations have been dropped on abandoned land and agricultural land with less favorable conditions for producing food and feed and contaminated water protection areas, areas affected by mining or other industrial activities or steep areas. Harvesting in these plantations is carried out every few years depending on growing time. This is usually from 2-to 5- year. Planting density varies and depends on rotation period. The mostcommonly used for plantations are willow or poplar clones. Quantity of wood mass depends on rotation period, tree species, soil quality and the intensity of tending. Together with the Forestry Institute, we performed measurements on a test crop in 2009 and 2010. Based on the processing of the data we have come to the conclusion, that the total yield of test crops does not reach the expected value of plantation yields reported in the literature. This is because our data were obtained on the basis of one year wood growth. Volume increment culmination has not been reached by this time, so the data from this crop is not yet confirmed as a economical investment.