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    Towards sustainable yield improvement: field inoculation of soybean with Bradyrhizobium and co‑inoculation with Azospirillum in Mozambique

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    Journal Article (1.014Mb)
    Date
    2020-11
    Author
    Chibeba, A.M.
    Kyei-Boahen, S.
    de Fátima Guimarães, M.
    Nogueira, M.A.
    Hungria, M.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    The effects of sole inoculation of soybean (Glycine max L. Merrill) with Bradyrhizobium and co-inoculation with Bradyrhizobium and Azospirillum on nodulation, plant growth and yields were investigated in the 2013/2014 and 2014/2015 cropping seasons under field conditions in Mozambique. The treatments included (1) Control (non-inoculated control, with symbiosis depending on indigenous rhizobia), (2) Urea (non-inoculated, receiving 200 kg ha−1 of N), (3) Sole inoculation with B. diazoefficiens strain USDA 110, and (4) Co-inoculation with B. diazoefficiens strain USDA 110 and A. brasilense strains Ab-V5 and Ab-V6, evaluated in a randomized complete block design with five replications. Nodule number and dry weight, shoot dry weight, biological and grain yields, grain dry weight, and harvest index were evaluated. In general, both sole inoculation and co-inoculation enhanced nodulation in relation to control. Sole inoculation increased grain yield by 22% (356 kg ha−1), the same enhancement magnitude attained under mineral N treatment, suggesting that Bradyrhizobium inoculation provides ecological and economic sustainability to the soybean crop in Mozambique or other countries with similar agro-climatic conditions. Co-inoculation did not increase grain yields in relation to neither the control nor sole inoculation, indicating that further research with adapted and high yielding soybean varieties along with effective rhizobial strains is required in Mozambique to attune the beneficial Azospirillum–plant cultivar–rhizobia interactions that have been reported in other countries for several legumes, including soybean.
    https://dx.doi.org/10.1007/s00203-020-01976-y
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7671
    IITA Authors ORCID
    Amaral Machaculeha Chibebahttps://orcid.org/0000-0001-6019-4482
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1007/s00203-020-01976-y
    Research Themes
    Natural Resource Management
    IITA Subjects
    Agronomy; Grain Legumes; Natural Resource Management; Plant Breeding; Plant Production; Soybean
    Agrovoc Terms
    Biological Nitrogen Fixation; Rhizobiaceae; Soybeans; Grain Legumes; Yields
    Regions
    Africa; Southern Africa
    Countries
    Mozambique
    Hubs
    Southern Africa Hub
    Journals
    Archives of Microbiology
    Collections
    • Journal and Journal Articles4835
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