Biochar and mill ash improve yields of sugarcane on a sand …
Mill ash applied at 50 Mg ha −1 improved plant height, number of tillers, and biomass yield of wheat ( Triticum aestivum) ( Khan, 2011 ). An average increase of 69% in sugarcane biomass and sucrose yields was also observed with the application of mill ash compared with a control with fertilizer only in a sand soil ( Gomez, 2013 ).