| | Title: Switchgrass and Big Bluestem Response to Spring Burning and Glyphosate Application: Hay, Biomass, and Seed Yields (Site not responding. Last check: 2007-10-16) |
 | | We burned or applied glyphosate to switchgrass and big bluestem in mid-April, early-May, and late-May in 1998 and 1999 at Rock Springs, PA. Dry matter yield was measured in July (hay harvest) or September (bioenergy feedstock harvest). |
 | | Late burning reduced hay yields in big bluestem by 40% compared with a mid-April burn, whereas late glyphosate application reduced hay yields by 84% and biomass feedstock yields by 48% compared with a mid-April treatment. |
 | | In 1999, big bluestem hay yields were not affected by burning, whereas glyphosate application reduced hay yields by 26 to 91% and biomass feedstock yields by 41% (Table 2). |
| www.afgc.org /Sanderson2003.htm (1786 words) |