1. Agriculture and Agri-Food Canada, Soils and Crops Research and Development Centre; 2560 Hochelaga Blvd. Québec QC Canada G1V 2J3
2. Dép. des sols et de génie agroalimentaire, Faculté des sciences de l'agriculture et de l'alimentation; Université Laval; Québec QC Canada G1K 7P4
3. Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre; 2000 College Street, P.O. Box 90 Sherbrooke QC Canada J1M 1Z3