| management of warm-season grass mixtures for biomass production in south dakota usa. | switchgrass (panicum virgatum l.), big bluestem (andropogon gerardii vitman), and indiangrass (sorghastrum nutans (l.) nash) are native warm-season grasses commonly used for pasture, hay, and conservation. more recently switchgrass has also been identified as a potential biomass energy crop, but management of mixtures of these species for biomass is not well documented. therefore, the objectives of our study were to: (1) determine the effects of harvest timing and n rate on yield and biomass cha ... | 2008 | 17349789 |