Biochar is the carbon-rich solid product resulting from the heating of biomass in an oxygen-limited environment. Due to its aromatic structure, biochar is chemically and biologically more stable compared with the organic matter from which it is made. Due to this stability and other specific properties some biochars offer potential value to crop productivity as well as to carbon sequestration efforts. Any improvement to agricultural productivity and/or simultaneous decrease in fertiliser use has the potential to ease pressure on the soil resource, reduce energy consumption and aid in management of excess organic waste.