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Wortmann, Charles S.Eledu, Charles A.David, SoniiaSingh, Shree P.[Common bean as a cash earner in Sub-Saharan Africa]Common bean as a cash earner in Sub-Saharan Africa

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
Wortmann, Charles S.Buruchara, Robin A.Eledu, Charles A.[Distribution of bean root rots in Sub-Saharan Africa]Distribution of bean root rots in Sub-Saharan Africa

The 3 stages of the diagnostic procedure to identify soil fertility problems are reviewed, namely (1) classification of land into soil fertility management units, (2) diagnosis of soil fertility and plant nutrition problems, and (3) determination of the causes and mechanisms of nutrient disorders...


Wortmann, Charles S.Regassa, TMughogho, SK[Research methods for the diagnosis of soil fertility problems]Research methods for the diagnosis of soil fertility problems

Wortmann, Charles S.Ransom, JK[Soil fertility research for maize and bean production systems of the Eastern Africa highlands : Proceedings of a workshop group meeting, Thika, Kenya, 1-4 September, 1992]Soil fertility research for maize and bean production systems of the Eastern Africa highlands : Proceedings of a workshop group meeting, Thika, Kenya, 1-4 September, 1992

Nine advanced bean lines (MCM 5001, CAL 96, RWR 136, AFR 531, AFR 509, UGP 6088, PVA 698, SUG 50 white haricot) were tested on-farm for two seasons of 1992 in Bushenyi, Iganga, Kabale, Luwero, Mbarara, Mpigi, Mubende and Nebbi districts of Uganda. The objective was to evaluate the performance and...


Ugen, Michael AdroguWortmann, Charles S.[Farmer participation in cultivar evaluation: The case of beans]Farmer participation in cultivar evaluation: The case of beans

Farmer participatory research (FPR) is conducted to compliment conventional research approaches with two major objectives in mind: to increase the efficiency of developing and testing alternative technologies with subsequent improvement of production systems; and to improve the adaptive research ...


Wortmann, Charles S.Walker, F.R.Ngambeki, D.S.[Farmer participatory research: Institutional considerations]Farmer participatory research: Institutional considerations
Alemayehu, A.Tamado, T.Nigussie, D.Yigzaw, D.Kinde, T.Wortmann, Charles S.[Maize–common bean intercropping to optimize maize-based crop production]Maize–common bean intercropping to optimize maize-based crop production

Results of research on soil fertility management for bean production in Uganda are explored. The occurrence and severity of soil fertility problems as constraints to bean production are examined and additional research needs are suggested. Results of trials conducted on research station and farme...

Se examinan los resultados de investigaciones en manejo de la fertilidad del suelo para la produccion de frijol en Uganda y la presencia y severidad de los problemas de fertilidad del suelo como factores limitantes de la produccion de este cultivo. Se sugieren necesidades adicionales de investiga...


Ochwoh, V.AWortmann, Charles S.[Soil fertility and bean nutrition in Uganda: A review and future research needs]Soil fertility and bean nutrition in Uganda: A review and future research needs

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