Contenu en carbone du panic érigé et du sol amendé avec du biochar et une inoculation microbienne
Authors: | Baril, Benjamin |
Advisor: | Allaire, Suzanne; Vanasse, Anne |
Abstract: | The use of switchgrass (Panicum virgatum L.) amended with biochar and/or rhizobacteria to produce energy, could potentially be a solution to reduce greenhouse gases and contribute to increase carbon (C) sequestration in soil. In this experiment, switchgrass was treated with biochar and N-fixing and P-solubilising bacteria in a split-plot experimental design. To assess the C dynamics in switchgrass production, the experiment was established on a sandy loam in St-Augustin-de-Desmaures near Quebec. A biochar treatment of 10 Mg of dry matter per hectare and treatments without biochar has been used as main plots, while three nitrogen rates (0, 25 and 50 kg ha-1) and treatments of bacterial inoculation were installed as sub-plots. The mineral nitrogen fertilizer significantly increased the aboveground biomass yield and C after two years of growth. A small positive effect of biochar (p=0,08) increase root C. Soil C was not affected by any treatment after two years of growth. |
Document Type: | Mémoire de maîtrise |
Issue Date: | 2013 |
Open Access Date: | 19 April 2018 |
Permalink: | http://hdl.handle.net/20.500.11794/24334 |
Grantor: | Université Laval |
Collection: | Thèses et mémoires |
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