摘要：Farming systems on peat soils are novel, considering the complexities of these organic soil. Since peat soils effectively capture greenhouse gases in their natural state, cultivating peat soils with annual or perennial crops such as pineapples necessitates the monitoring of nitrous oxide (N<sub>2</sub>O) emissions, especially from cultivated peat lands, due to a lack of data on N<sub>2</sub>O emissions. An on-farm experiment was carried out to determine the movement of N<sub>2</sub>O in pineapple production on peat soil. Additionally, the experiment was carried out to determine if the peat soil temperature and the N<sub>2</sub>O emissions were related. The chamber method was used to capture the N<sub>2</sub>O fluxes daily (for dry and wet seasons) after which gas chromatography was used to determine N<sub>2</sub>O followed by expressing the emission of this gas in t ha<sup>−1</sup> yr<sup>−1</sup>. The movement of N<sub>2</sub>O horizontally (832 t N<sub>2</sub>O ha<sup>−1</sup> yr<sup>−1</sup>) during the dry period was higher than in the wet period (599 t N<sub>2</sub>O ha<sup>−1</sup> yr<sup>−1</sup>) because of C and N substrate in the peat soil, in addition to the fertilizer used in fertilizing the pineapple plants. The vertical movement of N<sub>2</sub>O (44 t N<sub>2</sub>O ha<sup>−1</sup> yr<sup>−1</sup>) was higher in the dry season relative to N<sub>2</sub>O emission (38 t N<sub>2</sub>O ha<sup>−1</sup> yr<sup>−1</sup>) during the wet season because of nitrification and denitrification of N fertilizer. The peat soil temperature did not affect the direction (horizontal and vertical) of the N<sub>2</sub>O emission, suggesting that these factors are not related. Therefore, it can be concluded that N<sub>2</sub>O movement in peat soils under pineapple cultivation on peat lands occurs horizontally and vertically, regardless of season, and there is a need to ensure minimum tilling of the cultivated peat soils to prevent them from being an N<sub>2</sub>O source instead of an N<sub>2</sub>O sink.
