Heterogeneous global crop yield response to biochar: a meta-regression analysis

Andrew Crane-Droesch¹, Samuel Abiven², Simon Jeffery³ and Margaret S Torn^1,4

Published 16 December 2013 • © 2013 IOP Publishing Ltd
Environmental Research Letters, Volume 8, Number 4 Citation Andrew Crane-Droesch et al 2013 Environ. Res. Lett. 8 044049 DOI 10.1088/1748-9326/8/4/044049