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

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.
Cette étude a été menée pour évaluer l’efficacité symbiotique des isolats de Rhizobium utilisant le soja les haricots Phaseolus comme des plantes hôtes cultivées dans un sol acide (pH 4,5 et 5) de deux districts du sud du Rwanda. À cette fin, 10 et 33 isolats de soja et de haricot Phaseolus respectivement ont été étudiés. Les deux isolats avec la plus grande capacité de fixation de l’azote ont été combinés avec les espèces mycorhiziennes pour améliorer la nodulation et la production des légumineuses dans 10 traitements (contrôle avec ou sans 882mg de TSP / champignons mycorhiziens arbusculaires (AMF), des isolats Rhizobium avec ou sans 882mg de TSP et champignons mycorhiziens arbusculaires à 4 kg). Ces résultats indiquent que les isolats de Rhizobium efficaces ont un potentiel d’utilisation comme inoculants sur le soja et le haricot.
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Region Focus: 
East Africa
RUFORUM Conferences and Workshops
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Open Access
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Printed resource
"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholers in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme soil science and water management".