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Preliminary study of NIR model transfer in the determination of cotton trash components

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  131594540,  2013 Kansas City, Missouri, July 21 - July 24, 2013. (doi: http://dx.doi.org/10.13031/aim.20131594540) @2013
Authors:   Yongliang Liu, Devron Thibodeaux, Jonn Foulk, James Rodgers
Keywords:   Cotton total trash Leaf trash Non-leaf trash Near infrared spectroscopy NIR Model transfer.

Abstract. To assess the potential of a rapid and low-cost method that can be used, away from the laboratory, in places such as ginning sites, near infrared (NIR) spectroscopy has been applied to perform the qualitative classification and quantitative prediction of various cotton quality indices, including cotton trash. It is well-known that current-in-use trash measuring devices only generate the trash amounts in some aspects, instead of the content for individual trash components. This difficulty comes from the complexity of the co-existence of different cotton-plant related trash types, for example, leaves (leaf and bract), seed coats, hulls, and stems. To this regard, mixtures of known trash components (e.g., leaves, seed coats, hulls, stems, and sand/soil) with cut lint fibers were prepared physically and then their NIR spectra were correlated with the respective trash contents. Then the NIR models were examined for the feasibility of determining the trash amounts in commercial and uncut cotton fibers. One of great challenges is how to calibrate or validate the results from NIR model transfer by appropriate sample standards.

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