非洲、亚洲和中东的“转型经济体”需要不同的战略，那里的马铃薯系统的特点是规模非常小和集约管理的商业化农场。
Different strategies are needed for the "transforming economies" of Africa, Asia and the Middle East, where potato systems are characterized by very small, intensively managed commercial farms.
第一种是以农业为主的国家，主要是非洲，那里的贫困人口集中在农村地区，他们的生产的马铃薯用于家庭消费和在当地市场出售。
The first is agriculture-based economies, mainly in sub-Saharan Africa, where the poor are concentrated in rural areas and produce potato for home consumption first and then sale to local markets.
研究机构“国际马铃薯中心”的简•洛称，甘薯在非洲需要一个更好的形象。
Jan Low with the International potato Center, a research organization, says the sweet potato needs a better image in Africa.
研究机构“国际马铃薯中心”的简•洛称，甘薯在非洲需要一个更好的形象。
Jan Low with the International potato Center, a research organization, says the sweet potato needs a better image in Africa.
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