Haque, Md Mojammel, Md Mizanur Rahman, Md Monjur Morshed, Md Shafiqul Islam, and Md Safiul Islam Afrad. 2019. “Biochar on Soil Fertility and Crop Productivity”. The Agriculturists 17 (1-2):76-88. https://doi.org/10.3329/agric.v17i1-2.44698.