Author: Wortmann, Charles S.
- Tree legumes in medium-term fallows: Nitrogen, fixation, nitrate recovery and effects on subsequent crops
- Farmers` independent experimentation with green manure and/or cover crops: a component of participatory research for improving Ugandan farming systems
- Farmer participation research for improved soil management
- Accomplishments of participatory research for systems improvement in Iganga District, Uganda 1993 to 1997
Author: Fischler, MA
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