Figure 2: Growth parameters of maize plant grown for 6 weeks on lead contaminated (control) and compost (C) rice husk biochar (RHB), cashew nut shell biochar (CNSB) and compost modified biochars (RHBC and CNSBC) treated soils. (a) Maize plant leaf areas (b) maize plant number of leaves (c) maize plant height.