2023/1/1/ · Biochar-compost or biochar-complemented compost, a synergic (Fischer and Glaser, 2012) amendment developed by combining biochars and compost, is being explored these days (Agegnehu et al., 2017).This combination can ensure stable and labile carbon (Jindo et al., 2012b; Khan et al., 2014) and an increased amount of nutrients needed for degraded