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Spatial variability in commercial orange groves. Part 2: relating canopy geometry to soil attributes and historical yield

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Issue date
2018-10-16
Author
Colaço, André F.
Molin, José P.
Rosell Polo, Joan Ramon
Escolà i Agustí, Alexandre
Suggested citation
Colaço, André F.; Molin, José P.; Rosell Polo, Joan Ramon; Escolà i Agustí, Alexandre; . (2018) . Spatial variability in commercial orange groves. Part 2: relating canopy geometry to soil attributes and historical yield. Precision Agriculture, 2019, vol. 20, num. 4, p. 805-822. https://doi.org/10.1007/s11119-018-9615-0.
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Abstract
Site-specific management strategies are usually dependant on the understanding of the underlying cause and effect relationships that occur at the within-field level. The assessment of canopy geometry of tree crops has been facilitated in recent years through the development of light detection and ranging sensors mounted on terrestrial platforms. The main objective of this study was to uncover the factors driving orange tree variability in commercial orange groves. Secondly, this study sought to investigate whether tree geometry information derived from a terrestrial sensing platform is useful information to guide management zones delineation in such groves. A database of soil physical attributes, elevation, historical yield and canopy geometry (canopy volume and height) was analysed in three commercial orange groves in São Paulo, Brazil. Canopy geometry and historical yield were correlated with soil attributes in two of the three groves evaluated; in these groves, the correlation coefficient between yield and soil/landscape information was often above 0.6, depending on the year. Zones of different tree sizes presented different historical yield and soil properties in all three groves. In conclusion, assessing canopy volume provides useful information to delineate management zones and guide enhanced site-specific management strategies.
URI
http://hdl.handle.net/10459.1/66686
DOI
https://doi.org/10.1007/s11119-018-9615-0
Is part of
Precision Agriculture, 2019, vol. 20, num. 4, p. 805-822
European research projects
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  • Articles publicats (Grup de Recerca en AgròTICa i Agricultura de Precisió) [101]
  • Articles publicats (Agrotecnio Center) [928]
  • Articles publicats (Enginyeria Agroforestal) [333]

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  • Spatial variability in commercial orange groves. Part 1: canopy volume and height 

    Colaço, André F.; Molin, José P.; Rosell Polo, Joan Ramon; Escolà i Agustí, Alexandre (Springer, 2018-09-22)
    Characterizing crop spatial variability is crucial for estimating the opportunities for site-specific management practices. In the context of tree crops, ranging sensor technology has been developed to assess tree canopy ...
  • Mobile terrestrial laser scanner applications in precision fruticulture/ horticulture and tools to extract information from canopy point clouds 

    Escolà i Agustí, Alexandre; Martínez Casasnovas, José Antonio; Rufat i Lamarca, Josep; Arnó Satorra, Jaume; Arbonés, Amadeu; Sebé Feixas, Francesc; Pascual Roca, Miquel; Gregorio López, Eduard; Rosell Polo, Joan Ramon (Springer Science+Business Media, 2017-01-01)
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    Colaço, André F.; Trevisan, Rodrigo G.; Molin, José P.; Rosell Polo, Joan Ramon; Escolà i Agustí, Alexandre (The Animal Consortium, 2017-07-16)
    LiDAR (Light detection and ranging) technology is an alternative to current manual methods of canopy geometry estimations in orange trees. The objective of this work was to compare different types of canopy volume estimations ...

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