Biochar improves N cycling during composting of olive mill …
Two treatments: (i) control (olive mill waste 46% + sheep manure 54%, dry weight) and (ii) the same mixture treated with biochar (4%), were composted during 31 weeks. The incorporation of a small amount of biochar improved N cycling by increasing NO 3 − -N content, indicating a higher nitrifying activity, and reducing N losses by 15% …
