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Diagnosis of crop secondary and micro-nutrient deficiencies in sub-Saharan Africa by Wortmann, Charles S., Kaizzi, K.C., Maman, N., Cyamweshi, A., Dicko, M., Garba, M., Milner, M., Senkoro, C., Tarfa, B., Tettah, F., Kibunja, C., Muntholi, M., Nalivata, P., Nkonde, D., Nabahungu, L., Ouattara, K., Serme, I.

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Lowland rice yield and profit response to fertilizer application in Rwanda by Nabahungu, N.L., Cyamweshi, A.R., Kayumba, J., Kokou, K., Mukuralinda, Athanase, Cirhuza, J.M., Wortmann, Charles S.

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Improvement of smallholder farming systems in Africa by Wortmann, Charles S., Amede, Tilahun, Bekunda, Mateete A., Ndung’u-Magiroi, K., Masikati, Patricia, Snapp, Sieglinde S., Stewart, Zachary P., Westgate, M., Zida, Z., Kome, C.E.

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Perennial grass ley rotations with annual crops in tropical Africa: a review by Wortmann, Charles S., Bilgo, A., Kaizzi, C.K., Liben, F., Garba, M., Maman, N., Serme, I., Stewart, Z.P.

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Pathways to greater food production: lessons from Ethiopia. by Beyene, S., Cafer, A., Kumsa, A., Namara, Regassa E., Tesfaye, K., Wolde-Hawariat, Y., Yoder, R., Hames, R., Wortmann, Charles S.

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Green manures for maize-bean systems in eastern Uganda: Agronomic performance and farmers' perceptions by Fischler, MA, Wortmann, Charles S.

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

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

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Banana and bean intercropping: factors affecting bean yield and land use efficiency by Wortmann, Charles S., Sengooba, T.N.K., Kyamanywa, S.

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Bean improvement for low fertility soils in Africa by Wortmann, Charles S., Lunze, Lubanga, Ochwoh, Víctor A., Lynch, J

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Crotalaria ochroleuca as a green manure crop in Uganda by Wortmann, Charles S., Isabirye, M., Musa, S

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Development of an integrated bean root rot control strategy for Western Kenya by Otsyina, R.M., Ajanga, SI, Buruchara, Robin Arani, Wortmann, Charles S.

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

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Estimation of the fertilizer response of maize and bean intercropping using sole crop response equations by Wortmann, Charles S., Schnier, HF, Muriuki, A.W.

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

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Nutrient flows from harvested banana pseudostems by Wortmann, Charles S., Karamura, E.B., Gold, Cliford S.

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

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

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

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

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