• Contact Us
    • Send Feedback
    • Login
    View Item 
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    Whole Repository
    CollectionsIssue DateRegionCountryHubAffiliationAuthorsTitlesSubject
    This Sub-collection
    Issue DateRegionCountryHubAffiliationAuthorsTitlesSubject

    My Account

    Login

    Welcome to the International Institute of Tropical Agriculture Research Repository

    What would you like to view today?

    Potassium and magnesium response of cassava grown in an Ultisol in southern Nigeria

    Thumbnail
    View/Open
    S84ArtKangPotassiumNothomNodev.pdf (323.6Kb)
    Date
    1984-12
    Author
    Kang, B.T.
    Type
    Journal Article
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    Results of three consecutive croppings to study the potassium and magnesium responses of two improved cassava cultivars TMS 30395 and 30211 grown on an acid, sandy loam, Ultisol (Typic paleudult) in southern Nigeria is reported. On land newly cleared from Eupatorium fallow a significant potassium response in the first cropping year was observed only with the more vigorous cultivar TMS 30395. Both cultivars responded to potassium applications at rates of 30 and 60 kg Kha−1 in second and third croppings respectively. A significant response to application of 20 kg Mgha−1 was observed in the third crop with cultivar TMS 30211. Cultivar TMS 30395 seems to be more effective in utilizing magnesium from the soil. Potassium and magnesium responses on this Ultisol can be expected when the IN Ammonium Acetate extractable soil K and Mg test levels are ⩽ 0.15 me K 100g−1 and ⩽ 0.20 meMg 100g−1, respectively. Critical tissue concentrations of cassava index leaves sampled at 6 MAP are ⩽ 0.1% K for both cultivars and ⩽ 0.33% Mg for cultivar TMS 30211.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4243
    IITA Subjects
    Crop Systems; Cassava; Soil Information
    Agrovoc Terms
    Cassava; Ultisols; Soil; Nutrient Status
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository