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Downstream Approaches To Phosphorus Management In Agricultural Landscapes: Regional Applicability And Use, R. Kröger, E. J. Dunne, J. Novak, K. W. King, E. Mclellan, D. R. Smith, J. Strock, K. Boomer, M. Tomer, G. B. Noe

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

This review provides a critical overview of conservation practices that are aimed at improving water quality by retaining phosphorus (P) downstream of runoff genesis. The review is structured around specific downstream practices that are prevalent in various parts of the United States. Specific practices that we discuss include the use of controlled drainage, chemical treatment of waters and soils, receiving ditch management, and wetlands. The review also focuses on the specific hydrology and biogeochemistry associated with each of those practices. The practices are structured sequentially along flowpaths as you move through the landscape, from the edge-of-field, to adjacent aquatic systems, …