Harvest management and N-fertilization effects on yield and regrowth of smooth bromegrass, crested wheatgrass, and meadow bromegrass in the eastern prairies

摘要: Little information exists describing how pasture-type grasses such as meadow bromegrass (Bromus biebersteinii Roem & Schult.; MBR) may differ from hay-type crested wheatgrass (Agropyron cristatum (L.) Gaertn.; CWG) and smooth inermis Leyss.; SBR) in terms of DMY response to harvest fertilizer management. In a 3-yr field trial at Brandon, MB management (two-cut hay or three- four-cut simulated pasture management) nitrogen (0, 40, 80, 120, 160 kg N ha−1) were examined for their interactive effects on percent regrowth CWG, MBR, SBR Grasses managed under two-cut system generally had greater (P < 0.05) lower than system. There few consistent differences between grass species with relative ranking significance changing site-years. However, MBR was always (P < 0 05) than...