November 2, 2010 3:43:15 pm
A research team,including Indian-origin researchers,has found that grass could be the bioenergy crop of the future as the demand for biofuels increases,replacing corn as the premiere biofuel crop.
Researchers at the University of Illinois have completed the first extensive geographic yield and economic analysis of potential bioenergy grass crops in the Midwestern United States.
Demand for biofuels is increasing as Americans seek to expand renewable energy sources and mitigate the effects of fluctuating energy prices.
Corn ethanol is the main biofuel on the market,but demand for ethanol competes with corn”s availability as a food,and rising ethanol consumption could lead to higher food costs.
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In recognition of this problem,federal regulations mandate that 79 billion liters of biofuels must be produced annually from non-corn biomass by 2022.
Large grasses,such as switchgrass and miscanthus,could provide biomass with the added benefits of better nitrogen fixation and carbon capture,higher ethanol volumes per acre and lower water requirements than corn.
“It”s a better way to achieve our goals of energy security and climate change mitigation,” said Madhu Khanna,a professor of agricultural and consumer economics at U. of I. “These two particular crops are among the more promising nonfood crops currently available for large-scale production.”
The team published its results in the October issue of the journal Global Change Biology Bioenergy.
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