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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.

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

Wortmann, Charles S. ,  Lunze, L ,  Ochwoh, VA ,  Lynch, J ,  [Bean improvement for low fertility soils in Africa] ,  Bean improvement for low fertility soils in Africa

Wortmann, Charles S. ,  Sengooba, TNK ,  Kyamanywa, S. ,  [Banana and bean intercropping: factors affecting bean yield and land use efficiency] ,  Banana and bean intercropping: factors affecting bean yield and land use efficiency

Wortmann, Charles S. ,  Silver-Rwakaikara, M ,  Lynch, J ,  [Efficiency of nitrogen acquisition and utilisation in common bean in Uganda] ,  Efficiency of nitrogen acquisition and utilisation in common bean in Uganda

Wortmann, Charles S. ,  Schnier, HF ,  Muriuki, AW ,  [Estimation of the fertilizer response of maize and bean intercropping using sole crop response equations] ,  Estimation of the fertilizer response of maize and bean intercropping using sole crop response equations

Simane, B ,  Wortmann, Charles S. ,  Hoogenboom, Gerrit ,  [Haricot bean agroecology in Ethiopia: Definition using agroclimatic and crop growth simulation models] ,  Haricot bean agroecology in Ethiopia: Definition using agroclimatic and crop growth simulation models

Wortmann, Charles S. ,  [Bean improvement for low fertility soils in Africa : Proceedings of a working group meeting, Kampala, uganda 23-26 May, 1994] ,  Bean improvement for low fertility soils in Africa : Proceedings of a working group meeting, Kampala, uganda 23-26 May, 1994