ScienceDaily (2008-01-14) -- Switchgrass grown for biofuel production produced 540 percent more energy than needed to grow, harvest and process it into cellulosic ethanol, according to estimates from a large on-farm study. Results from the five-year study involving fields on farms in three states highlight the prairie grass' potential as a biomass fuel source that yields significantly more energy than is consumed in production and conversion into cellulosic ethanol, said Ken Vogel, a U.S. Department of Agriculture-Agricultural Research Service geneticist in UNL's agronomy and horticulture department.
Struck by the high carbon cost of sending food to dense urban areas and communities in extreme climates, Andrew Bodlovich and Hogan Gleeson devised a highly efficient, waste-free aquaponic growing system in which vegetable crops and freshwater fish benefit from a symbiotic relationship.
