Ngā hua rapu - "Soils Africa"

Sixth Meeting of the Eastern African Sub-Committee for Soil Correlation and Land Evaluation, Maseru, Lesotho, 9-18 October 1985.

Ngā marau:

Fifth Meeting of the Eastern African Sub-Committee for Soil Correlation and Land Evaluation : Wad Medani, Sudan, 5-10 December 1983.

Ngā marau: “…Soils Africa, Eastern.…”

The Soil resources of tropical Africa a symposium of the African Studies Association of the United Kingdom

Ngā marau: “…Soils Africa…”

West African soils mā Ahn, Peter M.

Ngā marau: “…Soils Africa, West…”

Management of vertisols in Sub-Saharan Africa : proceedings of a conference held at ILCA, Addis Ababa, Ethiopia;31 August -4 September 1987 /

Ngā marau: “…Clay soils Africa.…”

Soils of the West African savanna the maintenance and improvement of their fertility mā Jones, Michael John

Ngā marau: “…Soils Africa, West…”

Characterization of soils in relation to their classification and management for crop production examples from some areas of the humid tropics

Ngā marau: “…Soils Africa, West…”