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    Impact of soil acidity and liming on soybean (Glycine max) nodulation and nitrogen fixation in Kenyan soils

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    Journal Article (2.032Mb)
    Date
    2020-11
    Author
    Bakari, R.
    Mungai, N.
    Thuita, M.
    Masso, C.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    There is a wide application of rhizobia inoculants to legume crops in Africa, irrespective of the soil acidity, though the latter limits the effectiveness of inoculants. Two trials were conducted in a controlled environment to determine suitable soil pH and impact of liming on soybean nodulation and nitrogen fixation to inform proper application of the rhizobia-inoculant technology on acid soils. In the first trial; soil, variety and inoculation had significant influence (p < 0.05) on weighed nodule effectiveness (WNE) and N fixation. Strongly acidic soils recorded low WNE and N fixation. In the second trial, WNE and N fixation significantly increased with co-application of lime and inoculation (p < 0.05). The results showed that soybean inoculation is effective in increasing nodulation and N fixation in moderate acidic soils, contrarily to strongly acidic soils. Interestingly, co-application of lime and inoculation has potential of increasing nodulation and N fixation in strongly acidic soils. The WNE is recommended as a robust formula to report nodule effectiveness, compared to the current percentage method.
    https://dx.doi.org/10.1080/09064710.2020.1833976
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7762
    IITA Authors ORCID
    Moses Thuitahttps://orcid.org/0000-0002-6731-9492
    Cargele Massohttps://orcid.org/0000-0002-3980-6832
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1080/09064710.2020.1833976
    Research Themes
    Natural Resource Management
    IITA Subjects
    Agronomy; Grain Legumes; Nutrition; Plant Breeding; Plant Production; Soybean
    Agrovoc Terms
    Acid Soils; Biological Nitrogen Fixation; Inoculation; Nutrients; Soybeans; Soils; Kenya
    Regions
    Africa; East Africa
    Countries
    Kenya
    Hubs
    Central Africa Hub
    Journals
    Acta Agriculturae Scandinavica, Section B - Soil & Plant Science
    Collections
    • Journal and Journal Articles4835
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