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Journal of Environmental Quality|October 30, 2007
Vertical distribution of phosphorus in agricultural drainage ditch soilsRobert E Vaughan, Brian A Needelman, Peter J A Kleinman, et al.Journal of Environmental Quality|May 29, 2007
Spatial variation of soil phosphorus within a drainage ditch networkRobert E Vaughan, Brian A Needelman, Peter J A Kleinman, et al.Pageof 1