2 February 2006 Study on nitrogen stress characterization of rape based on ground multi-spectral imaging sensor
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Proceedings Volume 6031, ICO20: Remote Sensing and Infrared Devices and Systems; 60310I (2006) https://doi.org/10.1117/12.667932
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China
Abstract
This paper presents the development of a multi-spectral nitrogen deficiency sensor, which uses three channels (green, red, near-infrared) of crop images to determine nitrogen level of the rape. The core of this investigation is the calibration methods between the multi-spectral references and the nitrogen levels in crops measured using a SPAD 502 chlorophyll meter which may be used to measure N (g)/leaf area (m2). Some noticeable relationships between the multi-spectral reflectance and SPAD readings were found from this study.
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Lei Feng, Yong He, Zeyan Zhu, Min Huang, "Study on nitrogen stress characterization of rape based on ground multi-spectral imaging sensor", Proc. SPIE 6031, ICO20: Remote Sensing and Infrared Devices and Systems, 60310I (2 February 2006); doi: 10.1117/12.667932; https://doi.org/10.1117/12.667932
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