TY  - RPRT
TI  - Fertilizers: Sustaining Global Food Supplies
AU  - Stephen M. Jasinski
AU  - Deborah A. Kramer
AU  - Joyce A. Ober
AU  - James P. Searls
PY  - 1999
DO  - 10.3133/fs15599
UR  - https://pubs.usgs.gov/publication/fs15599
ID  - fs15599
ER  -