Skip to main content
SLU:s publikationsdatabas (SLUpub)

Sammanfattning

Peat is widely recognized for its optimal chemical and physical properties in seedling cultivation, making it a primary constituent of growing media in forest nurseries. However, due to the adverse environmental impacts associated with peat extractions, there is an increasing interest in replacing peat with more sustainable substrates. This study investigates the potential of utilizing by-products from the forestry and paper sectors for Pinus sylvestris seedling cultivation. We also evaluated whether biochar amendments enhance seedling growth and quality. Nine peat-free growing media (GM) were analyzed, all based on sawdust with varying proportions of composted fiber sludge, composted bark, wood fiber, both with and without biochar amendment. Peat-based GM served as the control. The results demonstrated that a GM composed of 70% (v/v) sawdust and 30% (v/v) wood fiber produced seedlings with growth, vitality and Dickson's quality index (DQI) similar to those grown in peat. Additionally, a GM consisting of 50% (v/v) sawdust, 25% (v/v) wood fiber and 25% (v/v) composted bark yielded seedlings with significantly smaller shoots (p <= 0.05), although their DQI did not differ significantly from the control. Conversely, GM containing 15% (v/v) biochar amendment and either 25% (v/v) or 30% (v/v) composted fiber sludge resulted in significantly stunted growth.

Nyckelord

Scots pine; forest nursery; pyrochar; hydrochar; greenfiber; sphagnum moss; substrate

Publicerad i

Scandinavian Journal of Forest Research
2025
Utgivare: TAYLOR AND FRANCIS LTD

SLU författare

UKÄ forskningsämne

Skogsvetenskap

Publikationens identifierare

  • DOI: https://doi.org/10.1080/02827581.2025.2597780

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/145642