The following technical papers can provide additional information on the movement of
agricultural fertilizers through watersheds:
Gentry, L.E., M.B. David, K.M. Smith-Starks, and D.A. Kovacic. 1998.
Nitrogen cycling and tile drainage loss in a corn/soybean rotation.
Agriculture, Ecosystems, and Environment 68:85-97.
Xue, Y., M.B. David, L.E. Gentry, and D.A. Kovacic. 1998.
Kinetics and
modeling of dissolved phosphorus export from a tile-drained agricultural
watershed. Journal of Environmental Quality 27:917-922.
David, M.B., L.E. Gentry, D.A. Kovacic, and K.M. Smith. 1997.
Nitrogen balance in and export from an agricultural watershed.
Journal of Environmental Quality 26:1038-1048.
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Is it time to regulate agricultural fertilizers?
Other Articles in Volume 1, Issue 2 - March, 1999:
Creating partnership for environmental policy making
Canada geese vs suburbia: the case for adaptable environmental policy