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    Performance of cowpea cultivars when grown as an intercrop with maize of contrasting maturities

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    S14ArtEwansihaPerformanceInthomDev.pdf (178.5Kb)
    Date
    2013
    Author
    Ewansiha, S.U.
    Kamara, A.
    Onyibe, J.E.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    A field trial was conducted during the rainy seasons of 2008 and 2009 at Samaru in northern Guinea savannah of Nigeria to determine the performance of semi-determinate and indeterminate cowpea cultivars intercropped with extra early, early and late maize cultivars. The trial was laid out in a randomized complete block design (RCBD) having treatments arranged as a split-plot factorial. Transmitted radiation was reduced by 49–63% due to shading by the maize plants. Similarly, intercropping cowpea with maize reduced intercepted radiation, fodder yield and grain yield of cowpea by 59–70%, 39–51% and 45–62%, respectively. Intercepted radiation and yields of intercropped cowpea were lower for late maize which maintained high leaf area over a longer period of time. This is supported by the higher plant height, higher leaf area index (LAI) and reduced transmitted radiation recorded in late maize compared with extra early and early maize. Extra early and early maize were less competitive with cowpea because of shorter period of association in addition to permitting higher radiation. Crop value of maize plus cowpea was higher than that of sole cowpea ($2616.8 vs. $1218.7 ha?1) because higher combined yield was achieved by a more efficient use of resources in the intercrop. Therefore, cowpea cultivar may be intercropped with extra early maize.
    https://dx.doi.org/10.1080/03650340.2013.829565
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1218
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1080/03650340.2013.829565
    IITA Subjects
    Cowpea; Grain Legumes
    Agrovoc Terms
    Cowpeas; Maize; Intercrop; Sole Crop
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Archives of Agronomy and Soil Science
    Collections
    • Journal and Journal Articles4835
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