Integrated agricultural production systems for improved food Security and livelihoods in Dry Areas(1)

第十一届国际旱地发展会议——Production systems are under pressure to be efficient in order to compete in global market. Small farms cannot benefit from economies of scale such as effective mechanization. Lack of access to capital and input markets. Youngsters are incre

关键词: 粮食安全 农业综合生产系统 规模经济
主讲人:Professor Ali Nefzaoui
时 长:0:14:12 年份:2013