ABSTRACT
The agricultural technologies that were developed and extended over the past four decades have contributed to unprecedented growth in world food production. The doubling of grain output globally between 1965 and 1990 was a remarkable achievement that drew on the skills and innovations of thousands of scientists and extensionists and millions of farmers, backed by the supportive decisions of policy-makers. Without what is now referred to as ‘the Green Revolution’, there would be large food deficits in the world today, with adverse environmental impacts from having to bring extensive areas of less suitable land under cultivation (Crosson and Anderson, 1999).
