TY - RPRT TI - Hydrologic budget and nitrogen distribution for an agricultural study plot in claypan soil and glacial till near Centralia, Mo.--May 1991 to May 1992 AU - Brian P. Kelly AU - L.N. Plummer PY - 1993 UR - https://pubs.usgs.gov/publication/70199816 ID - 70199816 ER -