TY  - RPRT
TI  - Biochar for soil fertility and natural carbon sequestration
AU  - C.E. Rostad
AU  - D.W. Rutherford
PY  - 2011
DO  - 10.3133/fs20103117
UR  - https://pubs.usgs.gov/publication/fs20103117
ID  - fs20103117
ER  -