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Presents the dry matter yields of 9 trifolium species fertilized at various P levels on a black clay vertisol (PH6) at ILCA's head quarters near Addis Ababa (elevation 2400m, rainfall 1300 mm).


Akundabweni, L.S.[Les trefles indigenes des hauts plateaux ethiopiens: Champions des forets de l'interieur]Les trefles indigenes des hauts plateaux ethiopiens: Champions des forets de l'interieur

An on-farm trial, in which a wheat-clover mixed cropping treatment was compared with un-fertilised (control) and N-fertilised (23 kg N ha (-1)) pure wheat treatments, was conducted at Ginchi (2200 metres above sea level (m asl)) and Deneba (2600 m asl) in the Ethiopian highlands. Compared with th...


Lupwayi, N.Z.Tedla, A.Regassa, H.[On-farm integration of forage legumes into cereal cropping systems in the Ethiopian highlands]On-farm integration of forage legumes into cereal cropping systems in the Ethiopian highlands

The West African Semi-Arid Tropics (WASAT) is characterized by a monomodal rainfall pattern, and based on the amount of annual rainfall it can be divided into three ecologies: Sahel, Sudan and Northern Guinea savannahs. The major soil groups of the WASAT are Alfisols, Inceptisols and Entisols and...


Hulugalle, N.R.Maurya, P.R.[Tillage systems for the West African semiarid tropics]Tillage systems for the West African semiarid tropics
Demelash, NigusBayu, WondimuTesfaye, SitotZiadat, Feras M.Sommer, Rolf[Current and residual effects of compost and inorganic fertilizer on wheat and soil chemical properties]Current and residual effects of compost and inorganic fertilizer on wheat and soil chemical properties
Becerra Martínez, C.Madero M, EHerrera G, O.A.Amézquita Collazos, Edgar[Caracterización espacial de la compactación en terrenos agrícolas de CIAT, Colombia = Space characterization of the compaction in agricultural lands of CIAT, Colombia]Caracterización espacial de la compactación en terrenos agrícolas de CIAT, Colombia = Space characterization of the compaction in agricultural lands of CIAT, Colombia

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

Although this document is intended to report research on Vertisols, livestock do not respect this boundary as they graze communal land. Hence a general situation of the available feed resources in the highlands is also highlighted which is followed by specific efforts of collaborative partners of...


Tedla, A.Mohamed-Saleem, M.A.Mamo, T.Tadesse, A.Duffera, M.[Grain, fodder and residue management]Grain, fodder and residue management

In 1986, ILCA carried out informal surveys at Dogollo and Inewari in order to understand the farming systems. Such surveys were also conducted by the Institute of Agricultural Research (IAR) at Ginchi in 1986 and by the Alemaya University of Agriculture at Ada/Debre Zeit in 1988/89. This was foll...


Asamenew, G.Beyene, H.Negatu, W.Ayele, G.[A survey of the farming systems of Vertisol areas of the Ethiopian highlands]A survey of the farming systems of Vertisol areas of the Ethiopian highlands

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