The 2012 RUFORUM Biennial Conference is the third 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. The third Biennial Conference was attended by 657 participants. This record contains an extended abstract accepted under the theme of Enhancing Natural Resource Management.
Effectiveness of Bradyrhizobia and Lime on Yield of Groundnuts and Maize Under Intercrop System in Acids Soils of Western Kenya
Abstract:
Bradyrhizobia is the rhizobia species that fixes nitrogen in the
groundnut crop. Soil acidity is a constraint to effective
bradyrhizobia activity. Western Kenya is characterised by acid
soils and thus unconducive for bradyrhizobia activity. The aim
of this study was to select the best liming material to bring the pH
to optimum levels for effective bradyrhizobia activity and to
establish the best bradyrhizobia inoculants that fix the highest
amount of nitrogen for enhanced groundnut and maize yields.
Dolomitic lime raised pH to optimum levels and bradyrhizobia
A6w and V2w performed best in increasing both groundnut and
maize yields. This package, i.e., Dolomitic lime with either
bradyrhizobia strain A6w and V2w should be promoted in acidic
soils of western Kenya for ground nut and maize production.
Bradyrhizobium est l’espèce de rhizobium qui fixe l’azote dans la
culture de l’arachide. L’acidité du sol est une contrainte à l’activité
efficace des bradyrhizobiums. L’Ouest du Kenya se caractérise
par des sols acides et donc peu propices à l’activité des
bradyrhizobiums. Le but de cette étude était de sélectionner le
meilleur matériau de chaulage pour amener le pH à un niveau
optimal pour l’activité efficace des bradyrhizobiums et d’établir
les meilleurs inoculants des Bradyrhizobiums qui fixent la plus
grande quantité d’azote pour les rendements améliorés de l’arachide
et du maïs. La chaux dolomitique a élevé le pH à des niveaux
optimums et les bradyrhizobiums A6W et V2W ont accompli les
meilleurs résultats dans l’augmentation à la fois du rendement de
l’arachide et celui du maïs. Cet ensemble de la chaux dolomitique
avec l’une ou l’autre souche des bradyrhizobiums A6W et V2W
devrait être encouragé dans les sols acides de l’Ouest du Kenya
pour la production de l’arachide et du maïs.
Language:
English
Extended abstract under Enhancing Natural Resource Management
Date of publication:
2012
Country:
Region Focus:
East Africa
Collection:
RUFORUM Conferences and Workshops
Agris Subject Categories:
Agrovoc terms:
Additional keywords:
Licence conditions:
Open Access
Form:
Printed resource
Publisher:
Notes:
