Document Type : Original Article
Authors
1
MSc. student , Department of Plant Production and Genetics Engineering, Faculty of Agricultural Science and Engineering, Razi University, Kermanshah, Iran
2
Associate Professor, Department of Plant Production and Genetics Engineering, Faculty of Agricultural Science and Engineering, Razi University, Kermanshah, Iran
3
Ph. D. graduated, Department of Plant Production and Genetics Engineering, Faculty of Agricultural Science and Engineering, Razi University, Kermanshah, Iran
10.22034/plant.2024.141703.1114
Abstract
This research was conducted with the aim of investigating amount of energy consumption and greenhouse gas emissions in dryland wheat and chickpea tillage systems in Kermanshah region during 2022. The amount of consumed inputs was calculated based on agronomy operations from sowing to harvesting. The data analysis was calculated in three steps including energy input, energy output and global warming potential due to emission of greenhouse gases. Results showed total energy input in conventional, minimum and no tillage systems of wheat were 13845, 9717 and 8671 Mj ha-1, respectively, and for chickpea were 7009, 5256 and 4470 Mj ha-1, respectively. Energy use efficiency for conventional, minimum and no tillage systems of wheat were 3.2, 4.9 and 5.1, and for chickpea were 2.6, 2.8 and 3.9, respectively. The highest amount of global warming potential in wheat and chickpea farms in conventional tillage were 106.8 and 96.1 kg CO2 eq ha-1, respectively. In conventional wheat tillage amount of CO2 due to consumption of fossil fuels was about 184.9% more than minimum tillage and 223.8% more than no tillage. Due to consumption of fossil fuels, emission of CO2 in conventional tillage of chickpea compared to minimum tillage and no tillage were 43.2% and 81.2%, respectively. Regardless of crops, emission of N2O due to consumption of fossil fuels in conventional tillage were 43.2 and 80.0% higher than minimum and no tillage, respectively. Generally, the results showed conventional tillage had the lowest energy efficiency and the highest global warming potential compared to other studied systems.
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