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Proceedings Paper

The red edge parameters as indicators of rice nitrogen levels
Author(s): Jingfeng Huang; Xiuzhen Wang; Renchao Wang
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Paper Abstract

The canopy spectra of rice under different nitrogen levels were studied. Some red edge parameters in the first derivative reflectance curve (wavelength, amplitude and area of the red edge peak) were used to evaluate rice leaf chlorophyll, LAI. Red edge positions move to longer wave bands till booting stage and move to short bands after booting stage. A high correlation was found between chlorophyll content of top leaves and the wavelength of the red edge position and between LAI and the red edge parameter. Then, the red edge was found valuable for assessment of carotenoid or albumen-nitrogen or non-albumen-nitrogen and the wavelength of the red parameters. Some red edge parameters are one of the best remote sensing descriptors.

Paper Details

Date Published: 16 June 2003
PDF: 7 pages
Proc. SPIE 4897, Multispectral and Hyperspectral Remote Sensing Instruments and Applications, (16 June 2003); doi: 10.1117/12.467367
Show Author Affiliations
Jingfeng Huang, Zhejiang Univ. (China)
Xiuzhen Wang, Institute Zhejiang Meteorology (China)
Renchao Wang, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 4897:
Multispectral and Hyperspectral Remote Sensing Instruments and Applications
Allen M. Larar; Qingxi Tong; Makoto Suzuki, Editor(s)

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