Autor: Wortmann, Charles S.
- Green manures for maize-bean systems in eastern Uganda: Agronomic performance and farmers' perceptions
- Farmers` independent experimentation with green manure and/or cover crops: a component of participatory research for improving Ugandan farming systems
- Accomplishments of participatory research for systems improvement in Iganga District, Uganda 1993 to 1997
Autor: Kaizzi, CK
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