Sensitivity of airborne-derived crop stress indices to the agricultural practices

Lebourgeois Valentine, Bégué Agnès, Martiné Jean-François. 2008. Sensitivity of airborne-derived crop stress indices to the agricultural practices. In : International Conference on Agricultural Engineering and Industry Exhibition (AgIng08), Hersonissos, Crete, 23-25 June 2008. s.l. : s.n., 1-13. International Conference on Agricultural Engineering and Industry Exhibition, Hersonissos, Grèce, 23 Juin 2008/25 Juin 2008.

Résumé : When acquired both in optical and thermal infrared domain, remotely sensed data can provide a wide range of information about the status of a crop. Several studies have demonstrated the utility of such information for the development of stress indices that can be related to water, nitrogen or global physiological status of the plant. In this paper, we investigate the relationships between crop biophysical parameters (LAI, SPAD, Humidity) and two airborne-derived spectral indices (NDVI: Normalized Vegetation Index, and CSI: Crop Stress Index) under different agricultural practices in terms of water treatment, nitrogen input and cultivar for sugarcane crop. We then discuss of the potentialities of the combined use of these two indices for a better understanding of crop status.

Mots-clés Agrovoc : Saccharum officinarum

Mots-clés géographiques Agrovoc : La Réunion, France

Classification Agris : U30 - Méthodes de recherche

Auteurs et affiliations

• Lebourgeois Valentine, CIRAD-PERSYST-UPR SCA (REU)
• Bégué Agnès, CIRAD-ES-UMR TETIS (FRA)
• Martiné Jean-François, CIRAD-PERSYST-UPR SCA (REU)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/548246/)

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