Maize plants grown in the untreated soil showed lower biomass
production relative to biochar-amended soils.
The dry matter of maize shoots in biochar amended soil
increased to a highest weight with 5.0% biochar at 75% field capacity.
Additionally, its highest weight at 100% field capacity was pronounced
for 3.0% biochar, then decreased as biochar increased to
5.0%; however, all the biochar rates showed higher shoot
dry matter than the control.