Jim Porterfield, Watershed/Water Quality Specialist
708 S. Fairview Avenue
Park Ridge, IL 60068
What’s New With Enhanced Efficiency Nitrogen Fertilizers: Climbing New Mountains to See What’s Possible, by Jim Porterfield. 2006. Proceedings Innovations in Reducing Nonpoint Source Pollution. Rivers Institute at Hanover College. Pages 285-294.
Combining Recent Innovations into Corn Production Systems For Higher Yields, Net Returns, Starch Energy and Lower Environmental Impact, by Jim Porterfield. 2008. Compared to normal farming practices, this study’s intensive management treatments boosted corn yields up to 21 percent, total starch and subsequent ethanol output per acre by up to 42 percent, net dollars per acre by up to 28 percent and reduced nitrous oxide (N2O) emissions by 16.7 percent.