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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

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

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

Asesses the role of Vesicular Arbuscular Mycorrhizal fungus in Lucerne mineral nutrition, and the response of phosphate fertilization to Lucerne.


Mamo, T.Haque, I.[Response of lucerne (Medicago sativa) to phosphate fertilization and inoculation with vesicular arbuscular mycorrhizal fungus in a P-deficient Vertisol]Response of lucerne (Medicago sativa) to phosphate fertilization and inoculation with vesicular arbuscular mycorrhizal fungus in a P-deficient Vertisol

Two greenhouse experiments were conducted to investigate the effect of phosphorus application and Rhizobium inoculation on the growth and nitrogen fixation of three tree legume species on a highland vertisol. The first experiment involved Sesbania sesban and S. goetzei, the second Leucaena panicu...


Luyindula, N.Haque, I.[Effect of Rhizobium inoculation and phosphorus on growth and nitrogen fixation in tree legumes grown on highland vertisols]Effect of Rhizobium inoculation and phosphorus on growth and nitrogen fixation in tree legumes grown on highland vertisols

This paper reports on studies of Faidherbia albida trees and their effects on some properties of vertisols in the Ethiopian highlands. The study was carried at the experiment station of ILCA at Debre Zeit with 850 mm rainfall and at an altitude of 1850 m. Studies on the lateral and vertical influ...


Kamara, C.S.Haque, I.[Faidherbia albida and its effects on Ethiopian highland Vertisols]Faidherbia albida and its effects on Ethiopian highland Vertisols

Field experiments were conducted to study the effects of inoculation and application of P on the productivity of Desmodium intortum on an Ultisol and Sesbania sesban on a Vertisol, Alfisol and Ultisol in the Ethiopian highlands. On the Vetisol, the effect of drainage by using broad-bed-and-furrow...


Haque, I.Lupwayi, N.Z.Luyindula, N.[Inoculation and phosphorus effects on Desmodium intortum and Sesbania sesban in the Ethiopian highlands]Inoculation and phosphorus effects on Desmodium intortum and Sesbania sesban in the Ethiopian highlands

Phosphorus deficiency is the major soil fertility problem limiting forage production in many parts of Africa. The objective of this study was to screen African Trifolium species for dry matter production, nutrient use efficiency and nitrogen fixation potential at different rates of applied Twenty...


Mugwira, L.M.Haque, I.Lupwayi, N.Z.Luyindula, N.[Evaluation of phosphorus uptake and use efficiency and nitrogen fixation potential by African clovers]Evaluation of phosphorus uptake and use efficiency and nitrogen fixation potential by African clovers

Summarizes and discusses the results of an experiment carried out in 1983 with oats and Italian ryegrass on a soil with vertic properties near Debre Berhan area (Ethiopia) to examine the effects of improved drainage and fertilization (N/P).


Haque, I.Jutzi, S.C.[Effets du drainage ameliore et de l'application d'engrais sur la croissance de l'ivraie multiflore et de l'avoine sur un sol a proprietes vertiques a Debre Berhan, Ethiopie]Effets du drainage ameliore et de l'application d'engrais sur la croissance de l'ivraie multiflore et de l'avoine sur un sol a proprietes vertiques a Debre Berhan, Ethiopie
Mamo, T.Haque, I.[Reponse d'une luzerne (Medicago sativa) a la fertilisation phosphatee et a l'inoculation avec des champignons mycorhiziens a vesicules et arbuscules dans un Vertisol deficient en P]Reponse d'une luzerne (Medicago sativa) a la fertilisation phosphatee et a l'inoculation avec des champignons mycorhiziens a vesicules et arbuscules dans un Vertisol deficient en P

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