What is switchgrass and why is it a good potential source for ethanol?
A. Switchgrass is one source likely to be tapped for ethanol production because of its potential for high fuel yields, hardiness, and ability to be grown in diverse areas. Switchgrass’ long root system – actually a fifty-fifty split above ground and below – helps keep carbon in the ground, improving soil quality. It is drought-tolerant, grows well even on marginal land, and doesn’t require heavy fertilizing.
