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    Maize-cowpea intercropping as affected by nitrogen fertilization

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    S87ArtEzumahMaizecowpeaInthomNodev.pdf (793.9Kb)
    Date
    1987
    Author
    Ezumah, H.C.
    Nam, N.K.
    Walker, P.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Plant architecture and N fertilizer may limit the performance of intercropped maize (Zea mays L.) and cowpea [Vigna unguiculata (L.) Walpers] cultivars. This paper describes an experiment in which cultivars of maize and cowpea were intercropped and fertilized with varying rates of N. The cowpea cultivars tested included a semi-erect and photoperiod-insensitive cultivar, TV × 3236, and a photoperiodsensitive cultivar, Vita 5. Both were intercropped in factorial combinations with three maize cultivars: a short, early maturing cultivar, Population 49, the tall, highly vegetative cultivars, TZSRW and TZPB. All cultivars were grown in an Alfisol soil (Oxic Paleustalf, Egbeda series) with rates of 0, 40, 80, and 120 kg N/ha applied. Maize responded positively to N fertilization. Grain yields of maize increased 62% with N rates from 0 to 120 kg/ha, while average cowpea yield decreased 27%. The magnitude of these changes varied with maize and cowpea architecture and growth habits. There are available cultivars of maize and cowpea that are compatible for mixed cropping, especially at high rates of N application. The sensitivity of the various treatments used was improved by use of bivariate analysis.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1752
    IITA Subjects
    Cowpea; Grain Legumes; Plant Production
    Agrovoc Terms
    Maize; Nitrogen; Fertilizers; Plant; Cowpeas; Intercropping; Grain Legumes
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Agronomy Journal
    Collections
    • Journal and Journal Articles5283
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