Ngô Việt Nam chờ chuyển gen
Cập nhật: 11:15 03/10/2008 GMT+7
Việt Nam trồng khoảng 1,1 triệu ha ngô, năng suất bình quân đến nay chưa đạt 4 tấn/ha/vụ, trong khi ở Mỹ - quốc gia đã chuyển gen thành công cho cây lương thực này, con số này là 9-11 tấn...
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