Evaluation of forage sorghum production in terms of energy consumption and global warming potential in Gorgan city | ||
| یافته های تحقیقاتی در بهبود تولیدات گیاهان زراعی | ||
| Article 3, Volume 2, Issue 2, February 2017, Pages 17-35 PDF (142.64 K) | ||
| Document Type: Original Article | ||
| Authors | ||
| M feyzbakhsh* ; H mokhtarpour | ||
| Abstract | ||
| Comparison of energy input, output and global warming potential (GWP) in the agricultural fields in the researchers extent in recent years. To conduct this, Accordingly interviews with various farmers (15 farmers was selected to filling in questionnaire for sorghum in Gorgan suburb) and needed data collected for machinery, consumable inputs including seeds, fertilizer, fuel and pesticides in forage sorghum. After that date was analyzed in three part, fuel consumption, consumed fuel and global warming potential base on carbon dioxide equivalent. Energy input, output were 28472.6 and 446880 MJ.ha-1 respectively in forage sorghum fields. Also the highest input energy in forage sorghum was obtained from fertilizers with 24.7 and the highest direct input energy 31.4 that related to fuel. The ratio of output to input energy and GWP in forage sorghum were calculated 15.6 and 1729 kg Co2.ha-1 respectively. Results indicated that the highest global warming potential (GWP) was related to nitrogen fertilizer and fuel consumption. So that, the use of devices that reduce fuel consumption is recommended, also need for research and investigation on crop rotation and nitrogen fixation plants in order to reducing GWP was revealed. | ||
| Keywords | ||
| Specific Energy; indirect energy; Fuel; Field operations | ||
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