Fertilizer Application Patterns and Trends and Their Implications for Water Quality in the Western Lake Erie Basin

This assessment of fertilizer application and impacts in the western Lake Erie basin (WLEB) was conducted by members of the International Joint Commission Science Advisory Board's Science Priority Committee (SAB-SPC), with the assistance of an advisory group and a contractor. It considers primarily commercial (or synthetic) fertilizer and manure, and secondarily other nutrient-containing materials applied to agricultural lands.

A supplement report which includes analysis of 2006-2011 Canadian commercial fertilizer data that were not available at the time the original study was completed by the SAB-SPC in 2019.