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Journal Article 1996

Autor: Lupwayi, N.Z. Tedla, A. Regassa, H.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/28053

Investigación en Agricultura
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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
Journal Article 1996

Autor: Tedla, A. Lupwayi, N.Z. Regassa, H.
Enlace original: https://cgspace.cgiar.org/handle/10568/79224

Investigación en Agricultura
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Tedla, A. ,  Lupwayi, N.Z. ,  Regassa, H. ,  [On-farm forage/food crops sequential system and its residual effects on subsequent wheat cultivation] ,  On-farm forage/food crops sequential system and its residual effects on subsequent wheat cultivation
Journal Article 1998

Autor: Haque, I. Lupwayi, N.Z. Ssali, H.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/28873

Investigación en Agricultura
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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
Journal Article 1999

Autor: Lupwayi, N.Z. Haque, I.

A litter bag technique was used to study the decomposition and release of N, P, K, Ca and Mg from Leucaena leucocephala and L. pallida prunings and cattle manure in a hedgerow intercropping trial conducted in the Ethiopian highlands. Hedgerow inter-cropping (also called alley cropping or alley fa...

Enlace original: https://cgspace.cgiar.org/handle/10568/30101

Investigación en Agricultura
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Lupwayi, N.Z. ,  Haque, I. ,  [Leucaena hedgerow intercropping and cattle manure application in the Ethiopian highlands. I. Decomposition and nutrient release] ,  Leucaena hedgerow intercropping and cattle manure application in the Ethiopian highlands. I. Decomposition and nutrient release
Journal Article 2000

Autor: Haque, I. Lupwayi, N.Z. Tadesse, T.

Alfisols, Vertisols, Inceptisols, Aridisols, Mollisols, and Entisols were sampled (0-30 cm) from 32 locations across Ethiopia. The soils were analyzed for copper (Cu), zinc (Zn), manganese (Mn), and iron (Fe) contents using 0.005 M diethylene triamine pentaacetic acid (DTPA), 0.05 M hydrochloric ...

Enlace original: https://cgspace.cgiar.org/handle/10568/32872

Investigación en Agricultura
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Haque, I. ,  Lupwayi, N.Z. ,  Tadesse, T. ,  [Soil micronutrient contents and relation to other soil properties in Ethiopia] ,  Soil micronutrient contents and relation to other soil properties in Ethiopia
Journal Article 1998

Autor: Lupwayi, N.Z. Haque, I.

The N.P.K. Ca and Mg release patterns of the leaves of four accessions of Sesbania species and two accessions of Leucaena species were evaluated in a 5-week laboratory incubation. Leaves of these leguminous trees, applied at an equivalent rate of 3 t dm ha-1, were significant sources of N, K and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/29639

Investigación en Agricultura
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Lupwayi, N.Z. ,  Haque, I. ,  [Mineralization of N, P, K, Ca and Mg from sesbania and leucaena leaves varying in chemical composition] ,  Mineralization of N, P, K, Ca and Mg from sesbania and leucaena leaves varying in chemical composition
Journal Article 2011

Autor: Lupwayi, N.Z. Kennedy, AC Chirwa, Rowland

Grain legumes occupy about 20 million hectares in Africa. The major crops are cowpea (Vigna unguiculata L.), which is grown on about 11 million hectares mostly in West Africa, and common bean (Phaseolus vulgaris L.), grown on about 5 million hectares mostly in eastern and southern Africa. These g...

Enlace original: https://cgspace.cgiar.org/handle/10568/42486

Investigación en Agricultura
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Lupwayi, N.Z. ,  Kennedy, AC ,  Chirwa, Rowland ,  [Grain legume impacts on soil biological processes in Sub-Saharan Africa] ,  Grain legume impacts on soil biological processes in Sub-Saharan Africa
Journal Article 1996

Autor: Haque, I. Lupwayi, N.Z. Luyindula, N.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/28124

Investigación en Agricultura
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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
Journal Article 1997

Autor: Mugwira, L.M. Haque, I. Lupwayi, N.Z. Luyindula, N.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/28127

Investigación en Agricultura
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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
Journal Article 2000

Autor: Haque, I. Lupwayi, N.Z.

Soil fertility is declining in most agro-ecosystems in sub-Saharan Africa, and incorporation of forage legumes into production systems to utilize the nitrogen fixed by the legumes could alleviate the problem, if efficient nitrogen-fixing legumes are used. The amounts of nitrogen fixed by Lablab, ...

Enlace original: https://cgspace.cgiar.org/handle/10568/33014

Investigación en Agricultura
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Haque, I. ,  Lupwayi, N.Z. ,  [Nitrogen fixation by annual forage legumes and its contribution to succeeding wheat in the Ethiopian highlands] ,  Nitrogen fixation by annual forage legumes and its contribution to succeeding wheat in the Ethiopian highlands

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