• Login
    View Item 
    •   UZ eScholar Home
    • Faculty of Agriculture Environment and Food Systems
    • Department of Crop Science
    • Crop Science Staff Publications
    • View Item
    •   UZ eScholar Home
    • Faculty of Agriculture Environment and Food Systems
    • Department of Crop Science
    • Crop Science Staff Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Assessing the spectral separability of flue cured tobacco varieties established on different planting dates and under varying fertilizer management levels

    Thumbnail
    View/Open
    Maasdorp_Assessing_the_spectral_separability_of_flue_cured_tobacco.pdf (1.106Mb)
    Date
    2014
    Author
    Svotwa, Ezekia
    Masuka, Anxious J.
    Maasdorp, Barbara
    Murwira, Amon
    Type
    Article
    Metadata
    Show full item record

    Abstract
    The NDVI was used to discriminate tobacco variety, assess fertilizer levels, and determine the impact of planting date on separating crops. A split plot design with four planting dates, September, October, November, and December, as main plots, variety as subplot, and fertilizer treatments as sub-subplots was used. Radiometric measurements were taken from 5m × 5m sampling plots, using a multispectral radiometer. The September, October, and November crops had significant variety x fertilizer treatment differences (𝐹 < 0.05) fromthe age of 10 weeks. T 66 and KRK26 varieties had similar (𝐹 > 0.05) NDVI values and these were greater (𝐹 < 0.5) than those for K E1. The 100% and the 150% fertilizer treatments were similar (𝐹 > 0.05) and both were greater (𝐹 < 0.05) than the 50% fertilizer treatments. All of the fertilizer and variety treatments at the December planting dates had similar reflectance characteristics (𝑃 > 0.05), which were lower (𝑃 < 0.05) than the September and October planting dates.The results showed that planting dates, varieties, and fertilizer levels could be distinguished using spectral data. Weeks 10-11 and 15 after the start of the experiment were optimal for separating the planting date effect.
    URI
    http://hdl.handle.net/10646/2886
    Additional Citation Information
    Svotwa, E., Masuka, A. J., Maasdorp, B. & Murwira, A. (2014). Assessing the spectral separability of flue cured tobacco varieties established on different planting dates and under varying fertilizer management levels. International Journal of Agronomy, 2014, 1-9.
    Publisher
    Hindawi
    Subject
    Spectral Separability
    Flue Cured Tobacco
    Fertilizer Management Levels
    Collections
    • Crop Science Staff Publications [8]

    University of Zimbabwe: Educating To Change Lives!
    DSpace software copyright © 2002-2020  DuraSpace | Contact Us | Send Feedback
     

     

    Browse

    All of UZ eScholarCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    View Usage StatisticsView Google Analytics Statistics

    University of Zimbabwe: Educating To Change Lives!
    DSpace software copyright © 2002-2020  DuraSpace | Contact Us | Send Feedback