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Conference Paper 1988

Autor: Mughogho, SK Wortmann, Charles S.

Characteristics of the major soil groups found in bean-growing areas of Africa (Alfisols, Ultisols, Oxisols, Inceptisols) and associated nutritional disorders are discussed. Soil fertility factors affecting bean growth and N fixation, as evidenced in research conducted in Africa, are reviewed as ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55962

Investigación en Agricultura
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Mughogho, SK ,  Wortmann, Charles S. ,  [Diagnosis of soil fertility constraints in bean based cropping systems: review of research results] ,  Diagnosis of soil fertility constraints in bean based cropping systems: review of research results
Conference Paper 1988

Autor: Wortmann, Charles S. Zake, JYK

Results of research work carried out in Africa on the response of beans to NPK fertilizers, liming, S and other secondary/micronutrients, and organic manures are reviewed. Band or spot placement of P, fertilizer management in multiple crop systems, and correlations between soil data, yields, and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55964

Investigación en Agricultura
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Wortmann, Charles S. ,  Zake, JYK ,  [Review of bean responses to applied fertilizers in Africa] ,  Review of bean responses to applied fertilizers in Africa
Conference Paper 1989

Autor: Wortmann, Charles S. Kisakye, J. Ugen, Michael Adrogu Sengooba, T.

The need for farmer participation, considering the complexity and diversity of bean production systems in Uganda, is highlighted. Through on-farm experimentation, technologies can be evaluated under farmers` environmental and managerial conditions. Farmer participation in bean research in the cou...

Enlace original: https://cgspace.cgiar.org/handle/10568/69892

Investigación en Agricultura
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Wortmann, Charles S. ,  Kisakye, J. ,  Ugen, Michael Adrogu ,  Sengooba, T. ,  [Farmers` participation in bean research in Uganda] ,  Farmers` participation in bean research in Uganda
Conference Paper 1992

Autor: Kirkby, Roger A. Wortmann, Charles S. Gridley, Howard E.
Enlace original: https://cgspace.cgiar.org/handle/10568/69761

Investigación en Agricultura
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Kirkby, Roger A. ,  Wortmann, Charles S. ,  Gridley, Howard E. ,  [Impact of the Eastern Africa bean research network on research priorities, national research and farmers] ,  Impact of the Eastern Africa bean research network on research priorities, national research and farmers
Conference Paper 2012

Autor: Beyene, S. Cafer, A. Kumsa, A. Namara, Regassa E. Tesfaye, K. Wolde-Hawariat, Y. Yoder, R. Hames, R. Wortmann, Charles S.
Enlace original: https://cgspace.cgiar.org/handle/10568/34547

Investigación en Agricultura
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Beyene, S. ,  Cafer, A. ,  Kumsa, A. ,  Namara, Regassa E. ,  Tesfaye, K. ,  Wolde-Hawariat, Y. ,  Yoder, R. ,  Hames, R. ,  Wortmann, Charles S. ,  [Pathways to greater food production: lessons from Ethiopia.] ,  Pathways to greater food production: lessons from Ethiopia.
Conference Paper 1993

Autor: Wortmann, Charles S.

Demands for food and fiber are increasing at a faster rate than supply in the medium and high altitude zones of Eastern Africa, while the productivity of the land is apparently declining. In many cases, productivity is constrained primarily by insufficient nutrient supply. To meet future demands ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55713

Investigación en Agricultura
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Wortmann, Charles S. ,  [Research for sustainable agricultural production systems in high altitude zones of Eastern Africa] ,  Research for sustainable agricultural production systems in high altitude zones of Eastern Africa
Conference Paper 1993

Autor: Wortmann, Charles S.

This paper addresses considerations for agricultural technology evaluation at various levels. At the research level, considerations include the information need, the resources required to conduct the research and the probability of research success. At the field-level, agronomic feasibility and t...

Enlace original: https://cgspace.cgiar.org/handle/10568/55712

Investigación en Agricultura
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Wortmann, Charles S. ,  [Agricultural technology evaluation: some considerations] ,  Agricultural technology evaluation: some considerations
Conference Paper 1994

Autor: Wortmann, Charles S.
Enlace original: https://cgspace.cgiar.org/handle/10568/55816

Investigación en Agricultura
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Wortmann, Charles S. ,  [The Africa network for screening beans for tolerance edaphic stresses: an overview] ,  The Africa network for screening beans for tolerance edaphic stresses: an overview

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