FRESENIUS ENVIRONMENTAL BULLETIN, cilt.27, ss.3759-3765, 2018 (SCI-Expanded)
This study was carried out to evaluate the energy balance and energy economics analysis in wheat production. The data were collected randomly from 156 farmers growing irrigated wheat in Erzurum province through a survey during the period of September-November, 2017. According to the results of the study, total energy input and output in wheat production were determined as 20105.9 MJ ha(-1) and 85703.5 MJ ha(-1) respectively. Nitrogen source, followed by seeds (17.6%) and diesel fuel (15.7%), had the maximum share of energy input (42.0%). The total energy value from wheat and straw were 85703.5 MJ ha(-1); 40.9% of which energy obtained from wheat and 59.1% from straw. In this study, the energy efficiency coefficient was found as 4.26, the specific energy coefficient as 8.43, the energy productivity coefficient as 0.12, and the total energy input cost per hectare as 1752.3 Turkish Liras for wheat production in irrigated conditions. The highest costs per energy units were labor (3.82 TL MJ(-1)), chemical (insecticide - 0.51 TL MJ(-1)) and machine (0.16 TL MJ(-1)) respectively. The average cost of energy input was determined as 0.09 TL MJ(-1), and according to the sources, the lowest energy costs were nitrogen (0.02 TL MP), irrigation water (0.04 TL MP) and diesel fuel (0.08 TL MJ(-1)). The energy benefit-cost ratio was 2.71, gross income was 4755.6 TL per hectare and net income was 3002.7 TL.C