2026-04-17T19:02:12Zhttps://recercat.cat/oai/requestoai:recercat.cat:20.500.12327/12922025-10-22T11:21:54Zcom_2072_4428com_2072_4427col_2072_487898
RECERCAT
author
Dittrich, Christian
author
Pecenka, Ralf
author
Løes, Anne-Kristin
author
Cáceres, Rafaela
author
Conroy, Judith
author
Rayns, Francis
author
Schmutz, Ulrich
author
Kir, Alev
author
Kruggel-Emden, Harald
other
Producció Animal
group
Sostenibilitat en Biosistemes
2025-10-22T11:21:54Z
2025-10-22T11:21:54Z
2021-06-10
Dittrich, Christian, Ralf Pecenka, Anne-Kristin Løes, Rafaela Cáceres, Judith Conroy, Francis Rayns, Ulrich Schmutz, Alev Kir, and Harald Kruggel-Emden. 2021. "Extrusion Of Different Plants Into Fibre For Peat Replacement In Growing Media: Adjustment Of Parameters To Achieve Satisfactory Physical Fibre-Properties". Agronomy 11 (6): 1185. doi:10.3390/agronomy11061185.
2073-4395
http://hdl.handle.net/20.500.12327/1292
https://doi.org/10.3390/agronomy11061185
Peat is a highly contentious input in agriculture. Replacing or reducing peat by substitution with lignocellulosic biomass processed into fibre by twin-screw-extrusion could contribute to more sustainable agriculture with regard to horticultural production. Therefore, plant wastes including pruning from Olea europaea L. and Vitis spp. L., residues from perennial herbs like Salvia spp. L., Populus spp. L. and forest biomass were processed to fibre for peat replacement with a biomass extruder. The water-holding-capacity (WHC), particle-size-distribution and other physical fibre characteristics were determined and compared to peat. The specific energy demand during extrusion was measured for aperture settings from 6–40 mm. No fibre reached the 82% WHC of peat. At the setting of 20 mm of all materials investigated, Salvia performed best with a WHC of 53% and moderate specific energy demand (167 kWh tDM −1 ) followed by Olea europaea with a WHC of 43% and a low energy demand (93 kWh tDM −1 ). For Populus, opening the aperture from 20–40 mm decreased energy demand by 41% and WHC by 27%. The drying of biomass for storage and remoistening during extrusion increased the specific energy demand. Despite a lower WHC than peat, all investigated materials are suitable to replace peat in growing media regarding their physical properties.
eng
Attribution 4.0 International
Extrusion of Different Plants into Fibre for Peat Replacement in Growing Media: Adjustment of Parameters to Achieve Satisfactory Physical Fibre-Properties
info:eu-repo/semantics/article