Toward multipurpose agriculture: Food, fuels, flex crops, and prospects for a bioeconomy

Each day, agriculture becomes more highly integrated into an increasing number of industries. Agriculture has never been only about food; cotton, tobacco, and other nonfood agricultural commodities (not to speak of spices and luxury foods, such as sugar and coffee) have for centuries been important to livelihoods and the economy. Yet, thanks to developments in biotechnology, the scope of agriculture is broadening quickly, and it may expand significantly in the coming years