The effects of defoliation intensity and frequency on aboveground production and root production of three species (slender wheatgrass, Nebraska sedge and �Steadfast� birdsfoot trefoil) were examined in highly controlled field study at the Gudmundsen Sandhills Laboratory (42� 04� N; 101� 26� W) 11 km north of Whitman, Nebraska. Forty-eight 48 containers of each species were transplanted in containers one meter apart in a 6 X 8 grid. One of six defoliation treatments (control, 2 clippings/low-intensity, 2 clippings/high-intensity, 5 clippings/low-intensity, 5 clippings/high-intensity and haying) was applied to each container. Total above ground production was collected and plant material was hand washed for root analysis.
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