Table of Contents: Overview, by Per Pinstrup-Andersen; Farmer-based agroecological technology, by Jules Pretty; Conventional research-based technology, by Prabhu L. Pingali; Modern biotechnology, by Calestous Juma; Modern technology for African agriculture, by Jennifer Thomson; Information and communications technologies, by Nuimuddin Chowdhury; GIS, GPS, and remote sensing, by Uwe Deichmann and Stanley Wood; Alternative energy sources, by R.K. Pachauri and Pooja Mehrota; Food irradiation, by Morton Satin