Submissions to Scholars Junction will be closed starting Monday, December 21, as we begin migrating to a new platform.

    • Login
    View Item  
    •   Scholars Junction
    • Theses and Dissertations
    • Theses and Dissertations
    • View Item
    •   Scholars Junction
    • Theses and Dissertations
    • Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Search

    My Account

    Login Register

    About

    About This Repository Deposit Your Work Policies and Terms of Use Contact Us More Scholarly Communication Services

    Browse

    Entire Repository Communities & Collections Issue Date Authors Titles Subjects This Collection Issue Date Authors Titles Subjects

    K Calibration for Corn and Soybean at -3 and -1/3 Bar Soil Moisture Levels (A Case Study of Some Malawi Soils)

    View/ Open
    etd-07302015-112314.pdf (1.800 Mb )
    Author
    Qoto, Julia Nyembezi
    Item Type
    Thesis
    Advisor
    Cox, Michael S.
    Committee
    Wallace, Teddy P.
    Henry, Brien W.
    Kingery, William
    Metrics
    
    Abstract
    A greenhouse pot study was conducted on three soils with varying clay contents to establish K critical value at -3 and -1/3 bar soil moisture levels. Four K fertilizer treatments (0, 0.07, 0.14, and 0.3 g/pot) replicated three times were arranged in a complete randomized block design. The Cate-Nelson graphical procedure revealed that K critical values for corn and soybeans were not equal at the two designated moisture levels. The corresponding percentage yield however was higher at -1/3 bars for corn and at -3 bars for soybean. Statistical regression analysis showed that there was a minor response in plant tissue K to changes in soil test K at both soil moisture levels. The ANOVA at 0.05 significance level showed the observed data were consistent with the null hypothesis that there was no significant difference between plant percentage yield and the increasing K fertilizer application rates at the two moisture levels.
    Degree
    Master of Science
    Major
    Agronomy
    College
    College of Agriculture and Life Sciences
    Department
    Department of Plant and Soil Sciences
    URI
    https://hdl.handle.net/11668/20404
    Collections
    • Theses and Dissertations
    Show full item record
    Mississippi State University Libraries
    395 Hardy Rd
    P.O. Box 5408, Mississippi State, MS 39762-5408
    (662) 325-7668
    (662) 325-0011
    (662) 325-8183
    Contact repository admin Report a problem Terms of use Privacy policy Accessibility MSU Legal
     

     

    Mississippi State University Libraries
    395 Hardy Rd
    P.O. Box 5408, Mississippi State, MS 39762-5408
    (662) 325-7668
    (662) 325-0011
    (662) 325-8183
    Contact repository admin Report a problem Terms of use Privacy policy Accessibility MSU Legal