Determination of Energy Use Efficiency of some Apple (Malus x domestica) Production in Turkey: a Case Study of Eğirdir Region; [Bestimmung der Energienutzungseffizienz bei der Produktion einiger Apfelsorten in der Türkei: Eine Fallstudie in der Region Eğirdir]

This research aims to make an analysis of energy use efficiency of apple (‘Starkrimson Delicious’ and ‘Golden Delicious’) production in Eğirdir region of Turkey, during the production season of 2012. Production data this research was collected in 2013. In order to determine the energy use efficiency of apple, various surveys have been conducted in 71 apple farms, selected through Simple Random Sampling method, located in Eğirdir region of Turkey. The data have been collected through face to face questionnaires and first hand observations. The energy input and output values in apple production have been calculated as 34,703.63 MJ ha−1 and 95,034 MJ ha−1, respectively. Energy inputs consist of diesel fuel energy by 29.04 %, chemical fertilizers energy by 24.28 %, machinery energy by 15.70 %, chemical energy by 9.84 %, human labor energy by 8.54 %, electricity energy by 5.63 %, irrigation energy by 3.97 %, farmyard manure energy by 2.88 % and lime energy by 0.12 %. Energy use efficiency, energy productivity, specific energy and net energy in apple production have been calculated as 2.74, 1.16 kg MJ−1, 0.86 MJ kg−1 and 60,330.36 MJ ha−1, respectively. The total energy input consumed has been classified as direct, by 47.17 %, indirect, by 52.83 %, renewable, by 15.38 % and non-renewable, by 74.62 %. © 2016, Springer-Verlag Berlin Heidelberg.