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    Norms for multivariate diagnosis of nutrient imbalance in the east African highland bananas (Musa spp. AAA)

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    S11ArtWairegiNormsInthomNodev.pdf (317.0Kb)
    Date
    2011
    Author
    Wairegi, L.
    Asten, Piet J.A. van
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Despite low yields and soil fertility problems, fertilizer use in the East African Highland banana (AAA-EA) production is absent. High fertilizer costs increase the need for site-specific fertilizer recommendations that address deficiencies. This study aimed to derive and compare norms for AAA-EA bananas, using Compositional Nutrient Diagnosis (CND), Diagnosis and Recommendation Integrated System (DRIS), and a DRIS that includes a filling value (DRIS-Rd), and study nutrient interactions. Data on foliar nitrogen, phosphorus, potassium, calcium, and magnesium concentrations, and plant performance were obtained from 300 plots in Uganda. CND indices were closely related to DRIS and DRIS-Rd indices (R2 > 0.965). Four nutrient interactions were common in both low and high bunch weight subpopulations. Although the three approaches can be used to determine nutrient imbalances in AAA-EA bananas, we recommend CND for ease of use. Diagnosis of nutrient deficiencies should be based on methods that identify plant nutritional imbalances.
    http://dx.doi.org/10.1080/01904167.2011.585203
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1672
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1080/01904167.2011.585203
    IITA Subjects
    Banana; Soil Fertility
    Agrovoc Terms
    Fertilizers; East African; Bananas; Nutrient Interactions; Nutrient Deficiencies; Compositional Nutrient Diagnosis; Diagnosis And Recommendation Integrated System; Foliar Nutrient Concentration
    Regions
    Africa; East Africa
    Countries
    Uganda
    Journals
    Journal of Plant Nutrition
    Collections
    • Journal and Journal Articles4842

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