Effect of previous crop on switchgrass production in southern Wisconsin

Switchgrass (Panicum virgatum) was identified as a potential bioenery production decades ago and more recently has been plugged by former President G.W. Bush in his 2006 State of the Union Address. As a result, in 2007 the US DoE funded a $125 million project at the UW CALS known as the Great Lakes Bioenergy Research […] More »

Effect of N-fertilizer and harvest timing on biomass yields and quality in Panicum virgatum l. and restored prairie in the upper Midwest

Native warm-season grasses of the tallgrass prairie are anticipated to be a significant source of cellulosic biofuel feedstocks for renewable energy, as well as deliver additional ecossytem services, such as mitigate nitrogen (N) losses to the environment. Whether additional services are realized, however will depend largely on how these perrenial bioenergy crops are managed. Balancing […] More »

Nutrient and Alkalinity Removal by Corn Grain, Stover and Cob Harvest in Upper Midwest USA

The objective of this study was to examine differences between corn grain; leaves, stalks and husks; and cobs in terms of NPK nutrient content and fluxes, alkalinity and calcium carbonate equivalent values, S content, and energy density, with an eye toward harvest as biofuel for cellulosic ethanol production, direct combustion or gasification. Authors: M. Avila-Segura, […] More »

Production Summary from WICST and the Biofuels Trial

The Energy Independence and Security Act of 2007 set a target of 36 billion gallons of biofuel to be produced annually within the USA by 2022. Of the total 36 billion gallons, 16 billion is to come from cellulosic ethanol and 5 billion gallons from biomass-based diesel and other “advanced biofuels” (from feedstocks other than […] More »

Great Lakes Bioenergy Research Center (GLBRC) and WICST

Two locations were chosen for field trials to research various bio-energy productions systems (grain-based, perennial, woody, native grassland, and integrated perennial/annual crop): the Kellogg Biological Station at Michigan State University and the Arlington Agricultural Research Station at the University of Wisconsin.¬† Existing systems to be compared at Wisconsin¬† (the WICST plots at the Arlington Research […] More »