Authors:
Satria Oktarita, Kristell Hergoualc‘h and Louis V. Verchot
Book:
Proceedings of the 15th International Peat Congress
Venue:
Kuching
Keywords:
nitrous-oxide, organic-matter, peatland, soil
Documentfile:
ipc16p519a210oktarita.hergoualch.etal_.pdf
Summary:
The addition of nitrogen (N) fertilizer in Histosols is suspected to increase soil organic matter oxidation and nitrous oxide (N2O) emissions. The objectives of this study were to investigate the impact of N fertilization rate on soil N2O memissions and to evaluate how key environmental variables such as the soil water-filled pore space (WFPS) and N availability, may affect the emissions. The study was conducted in an oil palm plantation fertilizer trial on peat in Sumatra which included 3 N application rates: 0 kg N ha-1 y-1 (N0), 153 kg N ha-1 y-1 (N1) and 306 kg N ha-1 y-1 (N2). Soil N2O fluxes were measured using the static chamber method from October 2012 until September 2013…