Decreased Methane Emissions Associated with Methanogenic and Methanotrophic Communities in a Pig Manure Windrow Composting System under Calcium Superphosphate Amendment.

ABSTRACT: With the rapid growth of livestock breeding, manure composting has evolved to be an important source of atmospheric methane (CH₄) which accelerates global warming. Calcium superphosphate (CaSSP), as a commonly used fertilizer, was proposed to be effective in reducing CH₄ emissions from manure composting, but the intrinsic biological mechanism remains unknown. Methanogens and methanotrophs both play a key role in mediating CH₄ fluxes, therefore we hypothesized that the CaSSP-mediated reduction in CH₄ emissions was attributed to the shift of methanogens and methanotrophs, which was regulated by physicochemical parameter changes. To test this hypothesis, a 60-day pig manure windrow composting experiment was conducted to investigate the response of C

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC8296093 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature