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      Visible–Near-Infrared Spectroscopy can predict Mass Transport of Dissolved Chemicals through Intact Soil

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          Abstract

          The intensification of agricultural production to meet the growing demand for agricultural commodities is increasing the use of chemicals. The ability of soils to transport dissolved chemicals depends on both the soil’s texture and structure. Assessment of the transport of dissolved chemicals (solutes) through soils is performed using breakthrough curves (BTCs) where the application of a solute at one site and its appearance over time at another are recorded. Obtaining BTCs from laboratory studies is extremely expensive and time- and labour-consuming. Visible–near-infrared (vis–NIR) spectroscopy is well recognized for its measurement speed and for its low data acquisition cost and can be used for quantitative estimation of basic soil properties such as clay and organic matter. In this study, for the first time ever, vis–NIR spectroscopy was used to predict dissolved chemical breakthrough curves obtained from tritium transport experiments on a large variety of intact soil columns. Averaged across the field, BTCs were estimated with a high degree of accuracy. So, with vis-NIR spectroscopy, the mass transport of dissolved chemicals can be measured, paving the way for next-generation measurements and monitoring of dissolved chemical transport by spectroscopy.

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          Most cited references 35

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          Visible, near infrared, mid infrared or combined diffuse reflectance spectroscopy for simultaneous assessment of various soil properties

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            Pesticides, environment, and food safety

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              Near-Infrared Analysis as a Rapid Method to Simultaneously Evaluate Several Soil Properties

               A Banin,  E Ben-Dor (1995)
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                Author and article information

                Contributors
                Sheela.Katuwal@agro.au.dk
                Journal
                Sci Rep
                Sci Rep
                Scientific Reports
                Nature Publishing Group UK (London )
                2045-2322
                25 July 2018
                25 July 2018
                2018
                : 8
                Affiliations
                [1 ]ISNI 0000 0001 1956 2722, GRID grid.7048.b, Department of Agroecology, , Aarhus University, ; Blichers Allé 20, PO Box 50, DK-8830 Tjele, Denmark
                [2 ]ISNI 0000 0001 0742 471X, GRID grid.5117.2, Department of Civil Engineering, , Aalborg University, ; Thomas Manns Vej 23, DK-9200 Aalborg, Denmark
                Article
                29306
                10.1038/s41598-018-29306-9
                6060133
                30046043
                © The Author(s) 2018

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

                Funding
                Funded by: FundRef https://doi.org/10.13039/501100002739, Aarhus Universitets Forskningsfond (Aarhus University Research Foundation);
                Award ID: AUFF-E-2016-9-36
                Award ID: AUFF-E-2016-9-36
                Award ID: AUFF-E-2016-9-36
                Award Recipient :
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