Working Document Series Open Access Optimisation of rhizobium and arbuscular mycorrhizal fungi benefits for grain legume production in acid soils M. C. Rwakaikara-Silver · J.S. Tenywa · M. Uwizerwa This study was conducted to evaluate the symbiotic effectiveness of Rhizobium isolates using soybean and Phaseolus bean as host plants grown in acid soil (pH 4.5 and 5) from two southern districts of Rwanda. For this purpose, 10 and 33 iso… RUF-35120 2010 CC BY 4.0 16 Sep 2015