TY  - RPRT
TI  - Ionic composition and nitrate in drainage water from fields fertilized with different nitrogen sources, Middle Swamp watershed, North Carolina, August 2000-August 2001
AU  - Stephen L. Harden
AU  - Timothy B. Spruill
PY  - 2004
DO  - 10.3133/sir20045123
UR  - https://pubs.usgs.gov/publication/sir20045123
ID  - sir20045123
ER  -