*2.2. Soil Amendment Description*

Two biomass crops were selected in this experiment to amend the histosol: *Miscanthus x giganteus* (miscanthus) and *Salix miyabeana* (willow). These amendments were chosen based on the findings of Dessureault-Rompré et al. [12], who observed miscanthus and willow biomass material to be more resistant to degradation than the annual plant sorghum (*Sorghum bicolor*). The harvested biomass crops were bought from nearby producers. The characteristics of the two soil amendments are presented here in Table 1.


**Table 1.** Characteristics of the chopped plant material.
