TY  - RPRT
TI  - Effects of agricultural practices and vadose zone stratigraphy on nitrate concentration in ground water in Kansas, USA
AU  - M.A. Townsend
AU  - R. O. Sleezer
AU  - S.A. Macko
PY  - 1996
DO  - 10.1016/0273-1223(96)00234-x
UR  - https://pubs.usgs.gov/publication/70019018
ID  - 70019018
ER  -