Abstract
In this study a data envelopment analysis was used to evaluate the technical and scale efficiencies of greenhouses regarding to energy use in carnation production Mahallat, Iran. The purpose of this study was to identify efficient and inefficient units and wasteful use of energy by the latter. In addition, we established the optimum level of energy from different inputs. Finally, the effect of energy use optimization on energy productivity and ratio was investigated. The results revealed that 35 % (7 farmers) and 55 % (11 farmers) out of farmers which considered for the analysis, were recognized as the technically and pure technically efficient farmers, respectively. Most greenhouses have wasteful use in diesel fuel and fertilizer consumption. The results represented that the average values of technical, pure technical and scale efficiency scores were 0.69, 0.82 and 0.813, accordingly. The results of ESTR calculations showed that if farmers 4, 6 and 13 operated efficiently, they would save energy consumption about 90 % without affecting the yield level.
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This research was supported by University of Tehran, Karaj, Iran.
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Shabani, Z., Rafiee, S., Mobli, H. et al. Optimization in energy consumption of carnation production using data envelopment analysis (DEA). Energy Syst 3, 325–339 (2012). https://doi.org/10.1007/s12667-012-0059-8
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DOI: https://doi.org/10.1007/s12667-012-0059-8