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Wortmann, Charles S. ,  Eledu, Charles A. ,  [Distribution of bean seed types in Eastern Africa] ,  Distribution of bean seed types in Eastern Africa

Wortmann, Charles S. ,  [Nutrient dynamics in a climbing bean and sorghum crop rotation in the Central Africa highlands] ,  Nutrient dynamics in a climbing bean and sorghum crop rotation in the Central Africa highlands

Wortmann, Charles S. ,  Karamura, E.B. ,  Gold, CS ,  [Nutrient flows from harvested banana pseudostems] ,  Nutrient flows from harvested banana pseudostems

Kayuki, KC ,  Wortmann, Charles S. ,  [Plant materials for soil fertility management in subhumid tropical areas] ,  Plant materials for soil fertility management in subhumid tropical areas

Drechsel, Pay ,  Mutwewingabo, B ,  Hagedorn, F ,  Wortmann, Charles S. ,  [Soil and foliar phosphorus determination in Rwanda: Procedures and interpretation] ,  Soil and foliar phosphorus determination in Rwanda: Procedures and interpretation

Wortmann, Charles S. ,  [Foliar nutrient testing with the diagnosis and recommendation integrated system (DRIS) for beans] ,  Foliar nutrient testing with the diagnosis and recommendation integrated system (DRIS) for beans

Wortmann, Charles S. ,  Senkoro, C. ,  Cyamweshi, A.R. ,  Kibunja, C.N. ,  Nkonde, D. ,  Munthali, M. ,  Nalivata, P. ,  Nabahungu, L.N. ,  Kaizzi, K. ,  [Maize-nutrient response functions for eastern and southern Africa] ,  Maize-nutrient response functions for eastern and southern Africa

Wortmann, Charles S. ,  [An adaptation breeding strategy for water deficit in bean developed with the application of DSSAT3 drybean model] ,  An adaptation breeding strategy for water deficit in bean developed with the application of DSSAT3 drybean model

Wortmann, Charles S. ,  Kaizzi, CK ,  [Tree legumes in medium-term fallows: Nitrogen, fixation, nitrate recovery and effects on subsequent crops] ,  Tree legumes in medium-term fallows: Nitrogen, fixation, nitrate recovery and effects on subsequent crops

David, S. ,  Wortmann, Charles S. ,  Kasozi, S ,  Mugisha-Mutetikka, M ,  [Using trial follow-up surveys to assess varietal adoption: The case of beans] ,  Using trial follow-up surveys to assess varietal adoption: The case of beans