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Wortmann, Charles S.Fischler, MAAlifugani, FKaizzi, CK[Accomplishments of participatory research for systems improvement in Iganga District, Uganda 1993 to 1997]Accomplishments of participatory research for systems improvement in Iganga District, Uganda 1993 to 1997

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 ...


Mughogho, SKWortmann, 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

Management of harvested (senescent) banana pseudostems has implications for efficiency of nutrient use for sole cropped as well as intercropped bananas. Two studies were conducted on aspects of nutrient flows from senescent pseudostems. Sixty one and 55% of the initial N and P, respectively, in s...


Wortmann, Charles S.Karamura, E.B.Gold, CS[Nutrient flows from harvested banana pseudostems]Nutrient flows from harvested banana pseudostems
Bekunda, Mateete A.Wortmann, Charles S.Bwamiki, D.P.Okwakol, M[Potentials and challenges of soil fertility management in the banana-based cropping systems of Eastern Africa]Potentials and challenges of soil fertility management in the banana-based cropping systems of Eastern Africa

A regional workshop was held in Ethiopia (Eastern Africa) to assess the status, future needs, and methodological issues of soil fertility research for bean cropping systems on the continent. Traditional forms of soil fertility maintenance, diagnosis of soil fertility constraints, nutrient require...


Wortmann, Charles S.[Workshop on Soil Fertility Research for Bean Cropping Systems in Africa (1988, Addis Ababa, Ethiopia). Proceedings]Workshop on Soil Fertility Research for Bean Cropping Systems in Africa (1988, Addis Ababa, Ethiopia). Proceedings

Bean production in Africa is very heterogeneous with much variation in environmental conditions, cropping systems, preferences and constraints. This working document contains information on the many bean producing areas in Africa. The data were gleaned from numerous sources but a major part of th...


Wortmann, Charles S.Allen, David J.[African bean production environments: their definition, characteristics and constraints]African bean production environments: their definition, characteristics and constraints

The Bean atlas is a comprehensive map of the bean growing areas in Africa. The first version was first published in 1998 and in paper format. For the last four years, PABRA has been developing the second edition, which shows dramatic changes in bean production areas across Africa, where some have...


Wortmann, Charles S.Kirkby, Roger A.Eledu, Charles A.Allen, David J.[Atlas of common bean (Phaseolus vulgaris L.) production in Africa]Atlas of common bean (Phaseolus vulgaris L.) production in Africa

A participatory approach to research on system improvement was initiated in five communities around Ikulwe District Farm Institute in Iganga District, Uganda. The site is located in the southeastern tall grassland zone, where perennial and annual crops are produced in mixed farming systems. Farme...


Kayuki, KCWortmann, Charles S.[Participatory research in Ikulwe-Iganga District, Uganda]Participatory research in Ikulwe-Iganga District, Uganda

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