TY  - RPRT
TI  - The relationship of nitrate concentrations in streams to row crop land use in Iowa
AU  - K. E. Schilling
AU  - R.D. Libra
PY  - 2000
DO  - 10.2134/jeq2000.00472425002900060016x
UR  - https://pubs.usgs.gov/publication/70022349
ID  - 70022349
ER  -