Managing nitrogen for groundwater quality and farm profitability :
proceedings of a symposium /
sponsored by Division A-5 of the American Society of Agronomy; S-1, S-3, S-4, S-6, and S-8 of the Soil Science Society of America; and Divisions C-3 and C-5 of the Crop Science Society of America, Anaheim, CA, 1988 ; editors, R.F. Follett, D.R. Kenney, and R.M. Cruse.

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Limited (search only)   University of Wisconsin - Madison