Banana peel biochar as alternative source of potassium for plant productivity and sustainable agriculture Mahmuda Islam, M. Halder, Md. A. B. Siddique, S. A. A. Razir, S. Sikder, J. C. Joardar*, 10.1007/s40093-019-00313-8 Requires Subscription PDF Requires Subscription HTML downloads: 192 views: 24