Samuel Gayi - ERD
Samuel Gayi - ERD
Samuel Gayi - ERD
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Cereal yields: Africa and Asia4.5Africa Wheat4.0Africa Rice3.5Africa MaizeAsia WheatAsia3.0Asia RiceMT/Ha2.52.0Asia MaizeAfrica1.51.00.50.01960 1965 1970 1975 1980 1985 1990 1995 2000 20059