Potential application of biochar as a growth supplement for mushroom cultivation (Pleurotus ostreatus)

Abstract

The study aims to examine the growth, yield and nutritional values of mushroom (Pleurotus ostreatus) to biochar amended substrate from Banmara (Lantana camara). The experiment was laid out in completely randomized design with three replications at Nepal Academy of Science And Technology's Laboratory, Khumaltar Lalitpur. Different concentrations of biochar (2%, 5%, 8%, 10%, and 15%) were utilized as supplements for mushroom cultivation. Results indicate that a substrate with 2% biochar enhances stalk length (7.1 cm) compared to the control (6.8 cm). Mycelia growth was faster with 2% biochar (10 days) versus the control (20 days). Proximate composition shows 23% crude protein in 5% biochar, a 9.35% increase compared to the control (13.65%). Total Biological Efficiency (%) is higher in the control (33%) than 2% and 5% biochar (18.66% and 13.19%). Nitrogen (%) is higher in 5% biochar (4.01) than in control (2.00%). Mineral analysis is significantly higher in biochar-added substrates than the control.