Raman Spectroscopy Enables Non-invasive and Confirmatory Diagnostics of Salinity Stresses, Nitrogen, Phosphorus, and Potassium Deficiencies in Rice

Frontiers in Plant Science
Lee SanchezDmitry Kurouski

Abstract

Proper management of nutrients in agricultural systems is critically important for maximizing crop yields while simultaneously minimizing the health and environmental impacts of pollution from fertilizers. These goals can be achieved by timely confirmatory diagnostics of nutrient deficiencies in plants, which enable precise administration of fertilizers and other supplementation in fields. Traditionally, nutrient diagnostics are performed by wet-laboratory analyses, which are both time- and labor-consuming. Unmanned aerial vehicle (UAV) and satellite imaging have offered a non-invasive alternative. However, these imaging approaches do not have sufficient specificity, and they are only capable of detecting symptomatic stages of nutrient deficiencies. Raman spectroscopy (RS) is a non-invasive and non-destructive technique that can be used for confirmatory detection and identification of both biotic and abiotic stresses on plants. Herein, we show the use of a hand-held Raman spectrometer for highly accurate pre-symptomatic diagnostics of nitrogen, phosphorus, and potassium deficiencies in rice (Oryza sativa). Moreover, we demonstrate that RS can also be used for pre symptomatic diagnostics of medium and high salinity stresses. A R...Continue Reading

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Jun 22, 2019·Planta·Charles FarberDmitry Kurouski

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Citations

Feb 9, 2021·Frontiers in Plant Science·William Z Payne, Dmitry Kurouski
Jun 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Charles FarberDmitry Kurouski
Sep 8, 2021·Frontiers in Plant Science·Tianyi DouDmitry Kurouski
Nov 9, 2021·Frontiers in Plant Science·Pil Joong ChungNam-Hai Chua

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Methods Mentioned

BETA
environmental stresses
inelastic light scattering
salt stress

Software Mentioned

PLS
_ Toolbox
PLSD
DA

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