Impacts of coniferous bark-derived organic soil amendments on microbial communities in arable soil - a microcosm study.

ABSTRACT: A decline in the carbon content of agricultural soils has been reported globally. Amendments of forest industry side-streams might counteract this. We tested the effects of industrial conifer bark and its cascade process materials on the soil microbiome under barley (Hordeum vulgare L.) in clay and silt soil microcosms for 10 months, simulating the seasonal temperature changes of the boreal region. Microbial gene copy numbers were higher in clay soils than in silt. All amendments except unextracted bark increased bacterial gene copies in both soils. In turn, all other amendments, but not unextracted bark from an anaerobic digestion process, increased fungal gene copy numbers in silt soil. In clay soil, fungal increase occurred only with unextracted bark and hot water extracted bark. Soil,

SUBMITTER: Peltoniemi K 

PROVIDER: S-EPMC10013654 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature