摘要：World population was about 2.5 billion in 1950; by 1988 it had doubled. Despite thisunprecedented population explosion, global food supply kept pace with the additional demand forfood. A technological revolution after World War II in the agriculture of the industrializedcountries initially made this achievement possible. In the developing countries, where growth offood production had relied heavily on plowing up new land and on irrigation development,technology was increasingly responsible for production growth after 1965.
