Working Document Series Open Access 2010 RUF-35120

Optimisation of rhizobium and arbuscular mycorrhizal fungi benefits for grain legume production in acid soils

M. C. Rwakaikara-SilverJ.S. TenywaM. Uwizerwa

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Abstract

111 words

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 isolates for soybean and Phaseolus bean respectively were studied. The two isolates with highest nitrogen fixing capacity were combined with mycorrhizal species for enhancing legume nodulation and production in 10 treatments (control with/ without 882mg of TSP/ arbuscular mycorrhizal fungi (AMF), Rhizobium isolates with/without 882mg of TSP and arbuscular mycorrhizal fungi in 4 kg). These results indicated that effective Rhizobium isolates had potential for use as inoculants on soybean and bean.

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