Fig. 3. Root biomass in increments to 1.1-m depth for Dacotah and Sunburst switch sampled in 2000, 2001, and 2002. Data for increments 0.3 to 0.6 m, 0.6 to 0.9 m, and 0.9 to 1.1 m were partitioned into 0.1 m increments to better illustrate trends in root biomass with soil depth. Horizontal bars are standard errors of the mean.