Fig. 3. Contribution of aggregate-size classes to whole soil amino sugar C (mg kg^–1 whole soil) in surface soil (0–5 cm) of (A) conventional tillage (CT) and (B) no-tillage (NT) soils at Horseshoe Bend, GA. Bars with different letters are significantly different (P < 0.05) across aggregate size classes for a given amino sugar. An * indicates a significant difference between CT and NT within an aggregate size class and amino sugar.