欧美a视频在线观看-欧美bbww-欧美bbwxxxx-欧美freexx-亚洲国产剧情在线-亚洲国产剧情在线精品视

Australian agricultural multi-pronged approach for tackling global food crisis
date:May 18, 2012
xpand investment in agricultural productivity, with an eye toward producing the full range of nutrients needed for healthy living not just maximising yields and calorie supplies.

Because food is perishable and expensive to transport, 85 to 90 per cent of food is consumed within the country in which it is produced, Professor Barrett said. So we must emphasise productivity growth in Africa and Asia, where most demand growth will happen, and where agricultural yields are only one-third those of t

03/05 12:13