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    Thematic mapper vegetation indices for determining soybean and corn growth parameters

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    Date
    1994-04
    Author
    Thenkabail, P.
    Ward, A.D.
    Lyon, J.
    Merry, C.J.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The use of thematic mapper data to study crop growth parameters has primarily been conducted with hand-held and truck-mounted radiometers. In addition, most studies have not used mid-infrared bands to develop vegetation indices. This study used Landsat thematic mapper data and crop parameter data from corn and soybean fields in northern Ohio (1) to develop plant-water sensitive vegetation indices that included the mid-infrared, near-infrared, and red bands; and (2) to compare the ability of different vegetation indices to estimate crop yield, leaf area index, wet biomass, dry biomass, and plant height. Indices which included the mid-infrared thematic mapper bands 5 and 7 performed equal to or better than the widely used near-infrared band 4 and red band 3. The best relationships between vegetation indices and crop parameters had Spearman non-parametric correlation coefficients of 0.80 to 0.89 for all parameters except crop yield which was not highly correlated with the vegetation indices.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5588
    IITA Subjects
    Plant Production; Soybean; Food Security
    Agrovoc Terms
    Yields; Soybeans
    Regions
    Africa; Acp; West Africa; North America
    Countries
    Nigeria; United States
    Collections
    • Journal and Journal Articles4836
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