Near infrared spectroscopy for predicting quality indices in the organic fertiliser industry
The carbon to nitrogen (C/N) ratio can provide information on the capacity of an organic input to be transformed into humus [1 - 3], but it is not sufficient in some cases [4]. The lignin/nitrogen (Lig/N) ratio is another parameter used when modelling the transformation of organic materials [5]. An alternative estimate of degradability is the percentage of organic matter which is potentially resistant to mineralization over a long period of time. This estimate of the potentially humified organic matter (PHOM), calculated from an established equation based on the chemical composition, is normalised [7]. Quality indicators to determine the total carbon (C), nitrogen (N) and lignin content are expensive and time-consuming. In this study we attempted to predict the PHOM index, the lignin/N ratio and the C/N ratio directly by near infrared (NIR) spectroscopy as a measure of the potential degradability of organic waste.
| Main Authors: | , , , , |
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| Format: | conference_item biblioteca |
| Language: | eng |
| Published: |
IM Publications
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| Subjects: | Q70 - Traitement des déchets agricoles, engrais organique, plante de culture tropicale, résidu de récolte, déchet organique, composition chimique, spectroscopie infrarouge, http://aims.fao.org/aos/agrovoc/c_4592, http://aims.fao.org/aos/agrovoc/c_34136, http://aims.fao.org/aos/agrovoc/c_16118, http://aims.fao.org/aos/agrovoc/c_35237, http://aims.fao.org/aos/agrovoc/c_1794, http://aims.fao.org/aos/agrovoc/c_28568, |
| Online Access: | http://agritrop.cirad.fr/542309/ http://agritrop.cirad.fr/542309/1/document_542309.pdf |
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