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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 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 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
Working Paper 1994

Autor: Saka, A.R. Haque, I. Lupwayi, N.Z. El-Wakeel, A.

This document starts by describing the five main agroecological zones of sub-Saharan Africa, viz, arid, semi-arid, subhumid, humid, and highland, and summarising population and agricultural production. Then it goes to the main topics that includes inter cropping systems; criteria for evaluating t...

Enlace original: https://cgspace.cgiar.org/handle/10568/4428

Investigación en Agricultura
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Saka, A.R. ,  Haque, I. ,  Lupwayi, N.Z. ,  El-Wakeel, A. ,  [Forage legumes in crop-livestock systems of sub-Saharan Africa] ,  Forage legumes in crop-livestock systems of sub-Saharan Africa
Journal Article 1994

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

An on farm tiral, in which a wheat-clover mixed cropping treatment was compared to an unfertilized (control) and N-fertilized (23 kg N ha-1) pure wheat treatments, was conducted at Ginchi (2200 metres above sea level (masl) and Deneba (2600 masl) in the Ethiopian highlands. The total crop residue...

Enlace original: https://cgspace.cgiar.org/handle/10568/29603

Investigación en Agricultura
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Tedla, A. ,  Lupwayi, N.Z. ,  Regassa, H. ,  [Cereal-forage legume mixed cropping systems in the Ethiopian highlands] ,  Cereal-forage legume mixed cropping systems in the Ethiopian highlands
Journal Article 1999

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

Although the majority of soils in Africa are P deficient, the high cost of conventional water-soluble P fertilizers limits their use by resource-poor farmers. Rockphosphates are a low-cost alternative. The effect of Egyptian rockphosphate (ERP) from two sources, applied at 50 kg P ha-1, on annual...

Enlace original: https://cgspace.cgiar.org/handle/10568/29704

Investigación en Agricultura
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Haque, I. ,  Lupwayi, N.Z. ,  [Responses of clover and desmodium to Egyptian rockphosphate in Ethiopia] ,  Responses of clover and desmodium to Egyptian rockphosphate in Ethiopia
Journal Article 1999

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

Poor drainage of Vertisols and nitrogen (N) and phosphorus (P) deficiencies are some if the major constraints to food and feed production in the Ethiopian highlands. The effects of soil drainage and P supply on N fixation by annual trifolium species and their residual value to succeeding crops wa...

Enlace original: https://cgspace.cgiar.org/handle/10568/28370

Investigación en Agricultura
Enlace permanente
Haque, I. ,  Lupwayi, N.Z. ,  [Landform and phosphorus effects on nitrogen fixed by annual clovers and its contribution to succeeding cereals in the Ethiopian highlands] ,  Landform and phosphorus effects on nitrogen fixed by annual clovers and its contribution to succeeding cereals in the Ethiopian highlands

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