Resultados de búsqueda - Ek, G.A. van

Quantitative assessment of traditional cropping systems in the Sudan savanna of northern Nigeria II. Management and productivity of major cropping systems por Ek, G.A. van, Henriet, J., Blade, S., Singh, B.

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Quantitative assessment of traditional cropping systems in the Sudan savanna of northern Nigeria: I. Rapid survey of prevalent cropping systems por Henriet, J., Ek, G.A. van, Blade, S., Singh, B.

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Quantitative assessment of traditional cropping systems in the Sudan savanna of northern Nigeria: III. Importance of trees, shrubs and secondary crops in the cropping systems por Henriet, J., Ek, G.A. van, Blade, S., Singh, B.

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