根据《2004年粮农状况》，即使穷人的主要粮食作物——小麦、稻米、白玉米、马铃薯和木薯——亦受到忽视。
Even the major food crops of the poor—wheat, rice, white maize, potato, and cassava—are also being neglected, according to SOFA 2004.
马铃薯是世界主要粮食作物之一。
在近几年中，主要粮食作物的国际贸易一步一步走向危机。
For several years, the global trade in staple foods has been heading towards a crisis.
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