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Presents the results of investigations on the relative distribution of the various phosphorus forms, fixing capacity and status of some Ethiopian highland Vertisols.


Mamo, T.Haque, I.Kamara, C.S.[Phosphorus status of some Ethiopian highland Vertisols]Phosphorus status of some Ethiopian highland Vertisols

Summarises available information on the P status of soils, effect of P application on nodulation, dry-matter and seed production, crude-protein and dry-matter digestibility; use of slow release sources of P; differences among species and varieties in their response to P ; assessment of P status o...


Haque, I.Nnadi, L.A.Mohamed-Saleem, M.A.[Phosphorus management with special reference to forage legumes in sub-Saharan Africa]Phosphorus management with special reference to forage legumes in sub-Saharan Africa

Vertisols and soils with vertic properties are an important soil group in the Ethiopian highlands. Poor drainage, soil, water and nutrient erosion are the most serious problems on highland Vertisols. Due to their high moisture- storage capacity, they have high production potential and this potent...


Haque, I.Abebe, M.Mamo, T.Dibabe, A.[Nutrient management]Nutrient management

Examines the potential of forage legume-cereal intercrops in enhancing soil fertility and increasing crop and livestock production in sub-Saharan Africa. Discusses inter/relay cropping systems, forage legumes in cereal systems, improvement of feed quality and enhancement of soil fertility and com...


Nnadi, L.A.Haque, I.[Forage legume-cereal systems: Improvement of soil fertility and agricultural productivity with special reference to sub-Saharan Africa]Forage legume-cereal systems: Improvement of soil fertility and agricultural productivity with special reference to sub-Saharan Africa

Presents papers and abstracts on the management of vertisols in sub-Saharan Africa and other parts of the world. Overviews the importance, distribution, agroclimatology and properties of vertisols and the Indian Vertisol technology experience. Reviews resource assessment and management and highli...


Jutzi, S.C.Haque, I.McIntire, John M.Stares, J.E.S.[Management of Vertisols in sub-Saharan Africa. Proceedings of a conference]Management of Vertisols in sub-Saharan Africa. Proceedings of a conference

Determines the status of the different forms of potassium (K) in relation to some soil characteristics and the extent of K fixation in 32 Ethiopian soils.


Mamo, T.Haque, I.[Potassium status of some Ethiopian soils]Potassium status of some Ethiopian soils

Phosphorus (P) is required to improve soil fertility for food and feed produciton in sub-Saharan Africa, but the high cost of conventional, water-soluble P fertilizers limits their use by resource-poor farmers. Rockphosphates are a low-cost alternative. The effectiveness, in terms of seed product...


Haque, I.Lupwayi, N.Z.Ssali, H.[Agronomic evaluation of unacidulated and partially acidulated Chilembwe rockphosphates for clover seed production]Agronomic evaluation of unacidulated and partially acidulated Chilembwe rockphosphates for clover seed production

A study conducted to develop a classification for Ethiopian clovers based on the performance and phosphorus requirement which has potential for selecting accessions from the rest of the ILCA germplasm suitable for different levels of soil The effects of different P levels on the growth and N and ...


Mugwira, L.M.Haque, I.[Variability in the growth and mineral nutrition of African clovers]Variability in the growth and mineral nutrition of African clovers

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