University of Tabriz Journal of Agricultural Science and Sustainable Production 2476-4310 Articles in Press 2027 07 22 The Impact of Conservation Agriculture on Carbon Sequestration and Global Warming Potential in Rainfed Lands of Aq Qala County, Golestan Province The Impact of Conservation Agriculture on Carbon Sequestration and Global Warming Potential in Rainfed Lands of Aq Qala County, Golestan Province 21485 10.22034/saps.2026.69558.3414 FA , Mohammad Mehdi Mirzaei Department of Agronomy, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University Faezeh Zaefarian Department of Agronomy, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University, Iran Mohammad Esmaeil Asadi, Assistant Professor and International Researcher of Soil and Water and Conservation Agriculture, Agricultural and Natural Resources Research and education Center, Gorgan, Iran , Samaneh Mahzari PhD. Graduated Student, Department of Soil Science, Gorgan Agricultural Sciences and Natural Resources University, Iran Journal Article 2025 10 07 Introduction and Objective: The aim of this experiment is to investigate the amount of carbon sequestration in plant organs and soil under different tillage methods, as well as to investigate the global warming potential and energy consumption.<br />Materials and Methods: This study was conducted in two regions, in Aq Qala County . The experimental treatments included conventional tillage and no tillage systems in two region. In this study, the carbon sequestration conversion factor in the four plant organs and soil organic carbon at four depths were calculated. The global warming potential was also calculated using gas emission coefficients.<br />Results: The highest conversion factor to organic carbon in plant organs such as roots, stems, and spikes was obtained for the NT13R no-tillage treatment in region one: 30.50, 38, and 49 percent, respectively. The total weight of carbon sequestered in the entire plant was 1533.20 kg.ha-1, which was attributed to the NT13R no-tillage treatment. The highest soil carbon sequestration rate was observed with an average of 38.5 tons.ha-1 at a depth of 20 to 30 cm of soil and in the NT13R treatment. Also, the highest amount of energy consumption, work time for seedbed preparation, and global warming potential were observed with an average of 1165.08 MJ, 2.28 hours, and 82.16 tons of carbon dioxide equivalent, respectively, belonging to the conventional tillage treatment in zone two.<br />Conclusion: According to the results, it can be acknowledged that the no-tillage cultivation system reduces energy consumption and global warming potential and increases soil organic carbon. Introduction and Objective: The aim of this experiment is to investigate the amount of carbon sequestration in plant organs and soil under different tillage methods, as well as to investigate the global warming potential and energy consumption.<br />Materials and Methods: This study was conducted in two regions, in Aq Qala County . The experimental treatments included conventional tillage and no tillage systems in two region. In this study, the carbon sequestration conversion factor in the four plant organs and soil organic carbon at four depths were calculated. The global warming potential was also calculated using gas emission coefficients.<br />Results: The highest conversion factor to organic carbon in plant organs such as roots, stems, and spikes was obtained for the NT13R no-tillage treatment in region one: 30.50, 38, and 49 percent, respectively. The total weight of carbon sequestered in the entire plant was 1533.20 kg.ha-1, which was attributed to the NT13R no-tillage treatment. The highest soil carbon sequestration rate was observed with an average of 38.5 tons.ha-1 at a depth of 20 to 30 cm of soil and in the NT13R treatment. Also, the highest amount of energy consumption, work time for seedbed preparation, and global warming potential were observed with an average of 1165.08 MJ, 2.28 hours, and 82.16 tons of carbon dioxide equivalent, respectively, belonging to the conventional tillage treatment in zone two.<br />Conclusion: According to the results, it can be acknowledged that the no-tillage cultivation system reduces energy consumption and global warming potential and increases soil organic carbon.