Calibration of near infrared reflectance spectroscopy to estimate nitrogen concentration in potato tissues

SummaryCalibrations are provided to relate near infrared reflectance (NIR) data to total N concentration in potato leaves, stems, and tubers, estimated by Dumas combustion. Separate calibrations are necessary for each tissue-type. the NIR models simulate Dumas [N] estimates accurately, quickly and c...

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Veröffentlicht in:	Potato research 1997-01, Vol.40 (2), p.215-220
Hauptverfasser:	Young, M.W. (Scottish Crop Research Inst., Invergowrie, Dundee (United Kingdom).), Mackerron, D.K.L, Davies, H.V
Format:	Artikel
Sprache:	eng
Schlagworte:	Agronomy. Soil science and plant productions AZOTE Biological and medical sciences Calibration COMBUSTION ESPECTROSCOPIA INFRARROJA FEUILLE Fundamental and applied biological sciences. Psychology General agronomy. Plant production HOJAS Infrared reflection INFRARED SPECTROPHOTOMETRY LEAVES Near infrared radiation NITROGEN Nitrogen fertilization Nitrogen, phosphorus, potassium fertilizations NITROGENO Potatoes Reflectance Soil-plant relationships. Soil fertility. Fertilization. Amendments SOLANUM TUBEROSUM SPECTROSCOPIE INFRAROUGE Spectrum analysis STEMS TALLO TIGE TUBERCULE TUBERCULO TUBERS
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Beschreibung
Zusammenfassung:	SummaryCalibrations are provided to relate near infrared reflectance (NIR) data to total N concentration in potato leaves, stems, and tubers, estimated by Dumas combustion. Separate calibrations are necessary for each tissue-type. the NIR models simulate Dumas [N] estimates accurately, quickly and cheaply and have been shown to be stable. The methods of deriving the calibrations, correcting them and then providing independent tests are described.
ISSN:	0014-3065 1871-4528
DOI:	10.1007/BF02358246