Effectiveness of Rhizobium Leguminosarum Strains Nodulating Hairy Vetch, an Introduced Forage Legume in the Sandy Soils of Zimbabwe
Abstract
114 words
Results from field experiments in Zimbabwe in 2009/10 - 2010
11 showed that nodulation of hairy vetch is erratic resulting in
poor performance of the crop. The need to inoculate hairy vetch
was therefore assessed using three (3) Rhizobium
leguminosarum strains locally available in Zimbabwe’s strain
bank. Strains MAR1504, MAR 833, MAR 346 were evaluated
for their N fixing effectiveness under common acidic soi
conditions and when limed to pH 6.5 (CaCl
2
scale). In the
greenhouse, strains MAR 833 and MAR 1504 produced the
highest biomass (at least 50% more dry mass as compared to
the control). The findings suggest that hairy vetch productivity
hence its contribution to soil N may be improved.
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