Fig. 1
From: Root biomass and soil carbon response to growing perennial grasses for bioenergy
Soil-profile organic C distribution under perennial warm-season grass monocultures [switchgrass (cv. Shawnee, Kanlow N1), indiangrass (Chief) and Mxg] and mixtures [(big bluestem (Goldmine) + indiangrass (Warrior) + switchgrass (Shawnee) and big bluestem (Bonanza) + indiangrass (Scout) + switchgrass (Shawnee)] on a Tomek silt loam in eastern Nebraska after 6 years of management. No significant differences (ns) were detected on SOC among grass monocultures and mixtures. Error bars are standard deviation values