Farmer - managed trials for evaluation of rhizatech and legumefix in Bungoma district Kenya

The nitrogen reserve of agricultural soils must be replenished periodically in order to maintain an adequate level for crop production. This replacement of soil nitrogen is generally accomplished by the addition of fertilizers or as products of biological nitrogen fixation (BNF). Symbiotic BNF allows many legumes to meet their nitrogen requirements from the atmosphere rather than the soil but in some cases, the resident population of rhizobium bacteria, the microsymbiont associated with nitrogen-fixing legumes, may not perform as an effective symbiotic partner. Increasing grain, tree and pasture legume production and matching these legumes with the correct microsymbiont are therefore a key component of improving agriculture and ecosystem services in the tropics. Identifying niches for legume BNF within existing farming systems is of paramount importance as the price of inorganic fertilizer continue to increase.
La réserve de l’azote des sols agricoles doit être renouvelée périodiquement afin de maintenir un niveau adéquat pour la production agricole. Ce remplacement d’azote du sol est généralement accompli par l’ajout d’engrais ou de produits de fixation biologique d’azote (BNF). La symbiotique BNF permet à beaucoup de légumineuses de répondre à leurs besoins en azote de l’atmosphère plutôt que de sol, mais dans certains cas, la population résidente de bactéries rhizobium, le microsymbiote associés aux légumineuses fixatrices d’azote, pourraient fonctionner comme un partenaire symbiotique efficace. L’augmentation de céréales, d’arbres et production de légumineuses et de pâturages correspondant à ces légumineuses avec les microsymbiotes corrects sont donc un élément clé de l’amélioration de l’agriculture et les services éco-systémiques dans les zones tropicales. L’identification des créneaux pour les légumineuses BNF dans les systèmes agricoles existants est d’une importance capitale comme les prix des engrais inorganiques continuer à augmenter.
Date of publication: 
Region Focus: 
East Africa
RUFORUM Conferences and Workshops
Licence conditions: 
Open Access
Access restriction: 
Printed resource

About the RUFORUM 2010 Biennal Conference
"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 stakeholders 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 of Natural Resource Management"