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Research Article Open Access
The main objectives of this research were to investigate the energy use patterns, examine the greenhouse gas emission and analyze the energy input–output in cultivation of wheat in Gorve city, Kordestan province of Iran. For this purpose, the data on 40 wheat production farms in Gorve city were collected and analyzed. The results indicated that total input energy of 42998.44 MJha-1 was consumed for wheat production. Electricity and total chemical fertilizers were amongst the highest input energies for wheat production. The lowest share of energy consumption belonged to human labour and biocide. The energy productivity was estimated to be 0.17 kg MJ-1. The ratio of output energy to input energy was approximately 2.27. In this research, the highest value of GHG emission belonged to diesel fuel with (201.34 kg CO2eq ha-1) of total emission and followed by Chemical fertilizer with (101.3 and 6.99 CO2eq ha-1for Nitrogen and Phosphate). The least amount of GHG emissions producer input in wheat production was pesticides with amount of 11.47 CO2eqha-1 of total GHG emissions. Using chemical fertilizer (especially nitrogen) more than need led to high amount of GHG emission. Moreover, soil and water pollutions are the results of using high amounts of chemical fertilizer which makes agriculture environment unfriendly.
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Author(s): Mohamad Reza MoghimiMohsen Pooya and Ahmad Mohammadi
GHG emission, Wheat production, Energy in agriculture, Energy ratio