Gas entrapment and microbial N₂O reduction reduce N₂O emissions from a biochar-amended sandy clay loam soil.

ABSTRACT: Nitrous oxide (N₂O) is a potent greenhouse gas that is produced during microbial nitrogen transformation processes such as nitrification and denitrification. Soils represent the largest sources of N₂O emissions with nitrogen fertilizer application being the main driver of rising atmospheric N₂O concentrations. Soil biochar amendment has been proposed as a promising tool to mitigate N₂O emissions from soils. However, the underlying processes that cause N₂O emission suppression in biochar-amended soils are still poorly understood. We set up microcosm experiments with fertilized, wet soil in which we used ¹⁵N tracing techniques and quantitative polymerase chain reaction (qPCR) to investigate the impact of biochar on mineral and

SUBMITTER: Harter J 

PROVIDER: S-EPMC5180216 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature