据经济合作与发展组织的经济学家分析,世界人口正以每年9000万的速度增长,人类正迫近有史以来人口增长率最高的时期。人口的迅速增加是粮食需求量增长的重要因素;经济收入的增长,又会导致人均粮食消费量的增加。对大多数发展中国家来说,全面的经济增长必须以农业为先导。现在,占世界人口75%的发展中国家只拥有世界谷物总产量的50%,人均250公斤,为发达国家的33%左右。虽然亚洲和拉丁美洲在粮食方面取得了巨大的成就,但是非洲国家的绿色革命尚有待发生。发展中国家约 According to the OECD economists, the world’s population is growing at the rate of 90 million annually, and mankind is approaching the highest population growth rate ever recorded. The rapid population growth is an important factor in the growth of grain demand. The growth of economic income will in turn lead to an increase in per capita food consumption. For most developing countries, comprehensive economic growth must take agriculture as a precursor. At present, developing countries, which account for 75% of the world’s population, own only 50% of the world’s total cereal output and 250kg per capita, accounting for about 33% of the developed countries. Although great achievements have been made in food in Asia and Latin America, the green revolution in African countries has yet to take place. About developing countries