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Titre :
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Leaf nitrogen analysis of poinsettia plants using image processing
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Auteurs :
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W Troyer ;
E Meyer ;
AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS
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Type de document :
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article/chapitre/communication
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Editeur :
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St Joseph (USA) : ASAE - American Society of Agricultural Engineers, 1990
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Collection :
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ASAE Paper n°90-7046
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Format :
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15 p.
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Note générale :
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Sigle : ASAE
Diffusion tous publics
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Langues:
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= Anglais
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Catégories :
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VISIONIQUE
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Mots-clés:
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TRAITEMENT D'IMAGES
;
INFRAROUGE
;
IMAGE
;
COULEUR
;
NUTRITION
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Résumé :
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Spectral reflectance and electronic image analyses were performed on the foliage of growing poinsettia plants, sujected to four different nitrogen treatment levels. The experiment, first completed in a greenhouse, was repeated in a growth chamber. Low nitrogen plants grown in both greenhouse and growth chamber showed an incease in red refectance (700-750nnm), but had differnet levels of near-infrared reflectance.
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