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Journal Article 1993

Autor: Ehui, Simeon K. Spencer, D.

New technologies must be developed in sub-Saharan Africa which are sustainable and economically viable. This paper discusses a methodology for measuring the agricultural sustainability and economic viability of tropical farming systems for new technology evaluation. The approach is based on the c...

Enlace original: https://cgspace.cgiar.org/handle/10568/97352

Investigación en Agricultura
Enlace permanente

Ehui, Simeon K. ,  Spencer, D. ,  [Measuring the sustainability and economic viability of tropical farming systems: a model from subSaharan Africa] ,  Measuring the sustainability and economic viability of tropical farming systems: a model from subSaharan Africa
Journal Article 1991

Autor: Spencer, D.

This paper describes a research strategy for the inland valleys which are flat-bottomed and vary in size from a few to hundreds of hectares. Most of the valleys are not presently cultivated. Where cultivated, rice is the most important crop grown in the wet season followed usually by cultivation ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98642

Investigación en Agricultura
Enlace permanente
Spencer, D. ,  [Farming systems research strategy for the development of inland valleys for increased food production in West Africa] ,  Farming systems research strategy for the development of inland valleys for increased food production in West Africa
Journal Article 1990

Autor: Ehui, Simeon K. Kang, B. Spencer, D.

Most upland soils in humid and sub-humid tropical Africa are characterized by low inherent fertility and are also susceptible to soil erosion and compaction with cultivation. Based on simulation model, this study uses a capital budgeting approach to determine the profitability of alternative land...

Enlace original: https://cgspace.cgiar.org/handle/10568/98614

Investigación en Agricultura
Enlace permanente
Ehui, Simeon K. ,  Kang, B. ,  Spencer, D. ,  [Economic analysis of soil erosion effects in alley cropping, notill and bush fallow systems in southwestern Nigeria] ,  Economic analysis of soil erosion effects in alley cropping, notill and bush fallow systems in southwestern Nigeria
Journal Article 1991

Autor: Spencer, D.

Research institutes in Africa have had limited success in producing new technologies appropriate to the needs of small farmers because of an inadequate understanding of small farmers' goals and resource limitations and over-reliance on the transfer of technologies from other regions. Farming syst...

Enlace original: https://cgspace.cgiar.org/handle/10568/98663

Investigación en Agricultura
Enlace permanente
Spencer, D. ,  [Institutionalizing the farming systems perspective in multicommodity research institute: the role of systemsbased research groups] ,  Institutionalizing the farming systems perspective in multicommodity research institute: the role of systemsbased research groups
Book 1991

Autor: Ehui, Simeon K. Spencer, D.
Enlace original: https://cgspace.cgiar.org/handle/10568/98722

Investigación en Agricultura
Enlace permanente

Ehui, Simeon K. ,  Spencer, D. ,  [Indices for measuring the sustainability and economic viability of farming systems: RCMP research monograph, No. 3] ,  Indices for measuring the sustainability and economic viability of farming systems: RCMP research monograph, No. 3

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