| Sumario: | The background and current status of research on bean N fixation in Rwanda, Burundi, Zimbabwe, Tanzania, Malawi, Uganda, and Ethiopia are summarized. The 4 stages of the methodological framework for bean N fixation research of CIAT are described: (I) (a) Rhizobium strain isolation and characterization and (b) effectiveness of the symbiosis with native strains; (II) improvement of the symbiosis through inoculation and plant breeding; (III) management of agronomic and environmental factors; and (IV) inoculant production/inoculation methods. The lab of Institut des Sciences Agronomiques du Rwanda. and the main results of on-farm trials are reported. The projects proposed for future research are included and the discussion topics of the meeting are summarized. (CIAT)
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