Integrated agricultural production systems for improved food Security and livelihoods in Dry Areas（1）
尊敬的用户：您还没有登录，请 登 录！
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 increasingly looking for alternative opportunities in the cities where employment is scarce. The result is unbridled urbanization with slums and social unrest.
嘉 宾 ：
Professor Ali Nefzaoui
关键字 ：
粮食安全 农业综合生产系统 规模经济视频年代：2013
相关视频
