ENERGY EFFICIENCY OF GREENHOUSE TOMATO PRODUCTION IN TURKEY: A CASE OF SIIRT PROVINCE

Greenhouse cultivation is one of the most important income generating branches of agriculture. The aim of this study is to do an analyze on energy efficiency of greenhouse tomato production in the season of 2018 in Siirt province and its sub-districts of Turkey. The energy input and output in greenhouse tomato production has been calculated as 104915.10 MJ ha-1 and 128000 MJ ha-1, respectively. Energy inputs consist of 33.39% (35030 MJ ha-1) chemical fertilizer energy, 19.24% (20184.08 MJ ha-1) human labor energy, 12.81% (13440 MJ ha-1) irrigation energy, 10.20% (10698.90 MJ ha-1) diesel fuel energy, 7.63% (80002.80 MJ ha-1) machinery energy, 6.75% (7084 MJ ha-1) chemicals energy, 1.41% (1475.20 MJ ha-1) transportation energy and 0.01% (0.10 MJ ha-1) seed energy. Energy efficiency, specific energy, energy productivity and net energy in greenhouse tomato production has been computed as 1.22, 0.66 MJ kg-1, 1.53 kg MJ-1 and 23084.90 MJ ha-1, respectively.