By Jamie Martin
Switchgrass could soon power airplanes, thanks to new studies showing its promise for sustainable aviation fuel (SAF). Researchers at the University of Illinois tested modern switchgrass cultivars across the Midwest, finding strong economic and environmental benefits.
Three newer energy cultivars, Independence, Liberty, and Carthage, outperformed older forage types across Illinois, Iowa, Nebraska, and South Dakota. The studies showed that switchgrass needs far less nitrogen fertilizer than corn but still yields high biomass, making it a profitable crop for marginal lands.
Muhammad Umer Arshad led the economic study, showing that farmers could see profits within two years. Meanwhile, a companion study by Nictor Namoi found switchgrass reduced nitrate leaching by 80% and cut nitrous oxide emissions compared to corn. Although switchgrass fields emitted more carbon dioxide, the extra root biomass promises greater carbon storage over time.
Switchgrass thrives on unproductive land, helping to preserve valuable cropland for food production. With the world aiming for 35 billion gallons of SAF by 2050, switchgrass stands ready to be part of the solution.
Even though bioenergy demand is currently low, experts believe switchgrass will play a crucial role as economies and technologies evolve toward greener fuels.
Photo Credit: gettyimages-ianchrisgraham
Categories: National