Refining the N Index to determine the risk of nitrate contamination of surface and ground waters for Ontario agricultural soils.

Drury, C.F., Parkin, G.W., Reynolds, W.D., Saso, J.K., Lauzon, J.D., Zhang, T.Q., Tan, C.S., Yang, J.Y., Yang, X.M., Welacky, T.W., et Reid, D.K. (2009). « Refining the N Index to determine the risk of nitrate contamination of surface and ground waters for Ontario agricultural soils. », Nutrient Management Joint Research Program, OMAFRA, Guelph, ON, Canada, March 10, 2009, Report NM8005.