Is there a need for Bradyrhizobium yuanmingense and B. japonicum reinoculation in subsequent cropping seasons under smallholder farmers’ conditions?

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dc.contributor.authorUlzen Jacob
dc.contributor.authorAbaidoo R. C
dc.contributor.authorMasso Cargele
dc.contributor.authorOwusu-Ansah Emmanuel Degraft Johnson
dc.contributor.authorEwusi-Mensah Nana
dc.date.accessioned2023-12-12T10:14:58Z
dc.date.available2023-12-12T10:14:58Z
dc.date.issued2018
dc.descriptionThis article is published by Elsevier, 2018 and is also available at https://doi.org/10.1016/j.apsoil.2018.04.003
dc.description.abstractReliable information on the persistence of rhizobium in soil in the absence of host between growing periods is important in deciding whether inoculation on the same plot in subsequent seasons is necessary. This study determined the survival of introduced rhizobium strains and predominant factors that influence the declining rates of their populations. Bradyrhizobium yuanmingense (BR 3267) and B. japonicum (USDA 110) were manually incorporated into soils at four different locations (Kpalga, Tanina, Tunayilli and Busa) in northern Ghana at 2.5 × 108 (log10 8.4) and 2.5 × 107 (log10 7.4) cells g−1 peat, respectively, per 6 m2 . The populations of sur viving cells were estimated at 0, 21, 42, 81, 142 and 296 days using the Most Probable Number (MPN) count technique. Several decline functions were applied to the data with hyperbolic regression function emerging as the option that provides the best fit for B. yuanmingense strain BR 3267 and B. japonicum strain USDA 110 at all locations. There was no significant difference in the declining rates between the different locations; however, there were differences in the declining rates for the sampling times. At 296 days, the numbers of surviving cells of B. yuanmingense strain BR 3267 and B. japonicum strain USDA 110 were log10 1.9 and log10 1.7, respectively. Native rhizobium population and soil moisture were the predominant factors that affected the survival of the introduced strains. It is evident from the studies that these strains can survive in sufficient numbers at least within a year; therefore, re-inoculation may not be necessary for a following season especially when using B. yuanmingense strain BR 3267.
dc.description.sponsorshipKNUST
dc.identifier.citationApplied Soil Ecology 128 (2018) 54–60
dc.identifier.uri10.1016/j.apsoil.2018.04.003
dc.identifier.urihttps://ir.knust.edu.gh/handle/123456789/14797
dc.language.isoen
dc.publisherElsevier
dc.titleIs there a need for Bradyrhizobium yuanmingense and B. japonicum reinoculation in subsequent cropping seasons under smallholder farmers’ conditions?
dc.typeArticle
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