Increasing demand to use corn plant biomass for producing energy and other products has spurred interest in harvesting corn stover and specific plant components in addition to grain. The technology and infrastructure needed for effective use of total corn plant biomass in energy production is currently being investigated and its implementation at a large scale in the near future is a real possibility. Harvesting more biomass means increased carbon (C) and other nutrient removal from fields. What is the nutrient removal when different corn plant components are harvested?