Abstract
In this research, the energy flow and production energy indices of canola cultivation in Trakya province of Turkey, Golestan and Mazandaran provinces of Iran were compared. Diesel fuel and chemical fertilizer inputs were the highest consumer of energy in the production of canola in these three regions. The results indicated that despite the higher energy use of machinery in Trakya province of Turkey, the energy use of diesel fuel in this province is less than the energy consumed in the two northern provinces of Iran, which could be due to available old machines for the production of canola in Mazandaran and Golestan provinces. Total greenhouse gas emissions of canola production for these regions were computed 562.85, 652.86 and 887.30 kgCO 2 eq ha, respectively. The inputs of chemical fertilizer and diesel fuel in canola production produced the highest percentage of gas emissions in these three areas. Energy consumption for potential feedstock production for one kg production of biodiesel fuel in these provinces was calculated as 14.76, 20.66 and 37.77 MJ, respectively. The amounts of greenhouse gas emissions for potential feedstock production for one kg production of biodiesel were obtained 0.45, 0.76 and 1.17 kgCO 2 eq for Trakya, Golestan and Mazandaran provinces, respectively.
Highlights
IntroductionCanola is an important industrial oilseed total output energy increased from 38.8 to 55.8 crop (Rempel et al, 2014)
1975 to 47.4 GJha-1 in the year 2000
The highest share of canola years was evaluated. They reported that total growing area in Iran belongs to Golestan (27.4%) energy input increased from 32.40 GJ ha-1 in followed by Mazandaran province (17.3%) 1990 to 37.20 GJ ha-1 in 2006
Summary
Canola is an important industrial oilseed total output energy increased from 38.8 to 55.8 crop (Rempel et al, 2014). It is culti- GJha-1 in the same period. The canola growing area in- In a similar study that carried out by Beheshticreased from 119,000 ha in 2004 to 170,000 ha Tabar et al (2010), the energy performance of in 2012 in Iran (Food and Agriculture Organi- Iranian agricultural systems during 1990-2006 zation, 2012). The highest share of canola years was evaluated. They reported that total growing area in Iran belongs to Golestan (27.4%) energy input increased from 32.40 GJ ha-1 in followed by Mazandaran province (17.3%) 1990 to 37.20 GJ ha-1 in 2006. Total output (Ministry of Jihad-e-Agriculture of Iran, 2012). Total output (Ministry of Jihad-e-Agriculture of Iran, 2012). energy increased from 30.85 to 43.68 GJ ha-1
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