1. Lakehead University, Department of Geology, Thunder Bay, ON, Canada
2. School of Environmental Sciences, University of Guelph, Ridgetown, ON, Canada
3. Agriculture and Agri-Food Canada, Central Experimental Farm, Ottawa, ON, Canada
4. Department of Plant Agriculture, University of Guelph, Guelph, ON, Canada
5. Department of Plant Agriculture, University of Guelph Ridgetown Campus, Ridgetown, ON, Canada