Biochar and Organic Fertilizer Co-Application Enhances Soil Carbon Priming, Increasing CO₂ Fluxes in Two Contrasting Arable Soils.

ABSTRACT: Biochar soil amendments, along with non-tillage agriculture, are often proposed as a strategy for carbon sequestration. It is still questionable how the quality of biochar might influence the priming effect on soil organic matter and whether the addition of unprocessed organic amendments will affect biochar stability. In the study, six different biochars and three exogenous organic matter sources were added to two distinct arable soils. CO₂ emission was monitored for 100 days of incubation and CO₂ flux was estimated. Results showed that biochar increased soil CO₂ fluxes. The highest peaks, up to 162 µg C-CO₂ h^-1 100 g^-1, were recorded in treatments with food waste biochars, suggesting that they serve as a source of easily av

SUBMITTER: Bednik M 

PROVIDER: S-EPMC10649814 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature