Switchgrass Improves Marginal Soil, Research Shows

Recent research at South Dakota State University explored how switchgrass, a native prairie plant used as biofuel and feed, can improve properties of marginal soil. Switchgrass was found to improve both physical and chemical properties of marginal soil, as shown by improvement in soil organic carbon levels, infiltration rates, saturated hydraulic conductivity, soil water retention, and pore size distribution, as well as reduced soil bulk density. Researchers also found that switchgrass fields have improved microbe and enzymatic populations in their soil.