英文文献：Biomass Yield to Nitrogen Response Functions for Four Candidate Biorefinery Feedstock Perennial Grass Species
英文文献作者：Aravindhakshan, Sijesh C.,Epplin, Francis M.,Taliaferro, Charles M.
英文文献摘要：
Biomass yield to nitrogen response functions were determined for four perennial grass species. The species, nitrogen level, and harvest frequency that maximize expected net returns given the climate and soils of the U.S. Southern Plains were determined. For most combinations of biomass and nitrogen price, switchgrass is the optimal species.