Share Email Print
cover

Proceedings Paper

Estimation of winter wheat canopy nitrogen density at different growth stages based on Multi-LUT approach
Author(s): Zhenhai Li; Na Li; Zhenhong Li; Jianwen Wang; Chang Liu
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Rapid real-time monitoring of wheat nitrogen (N) status is crucial for precision N management during wheat growth. In this study, Multi Lookup Table (Multi-LUT) approach based on the N-PROSAIL model parameters setting at different growth stages was constructed to estimating canopy N density (CND) in winter wheat. The results showed that the estimated CND was in line with with measured CND, with the determination coefficient (R2) and the corresponding root mean square error (RMSE) values of 0.80 and 1.16 g m-2, respectively. Time-consuming of one sample estimation was only 6 ms under the test machine with CPU configuration of Intel(R) Core(TM) i5-2430 @2.40GHz quad-core. These results confirmed the potential of using Multi-LUT approach for CND retrieval in winter wheat at different growth stages and under variables climatic conditions.

Paper Details

Date Published: 2 November 2017
PDF: 5 pages
Proc. SPIE 10421, Remote Sensing for Agriculture, Ecosystems, and Hydrology XIX, 1042119 (2 November 2017); doi: 10.1117/12.2278719
Show Author Affiliations
Zhenhai Li, Newcastle Univ. (United Kingdom)
National Engineering Research Ctr. for Information Technology in Agriculture (China)
Na Li, Newcastle Univ. (United Kingdom)
Beijing Univ. of Aeronautics and Astronautics (China)
Zhenhong Li, Newcastle Univ. (United Kingdom)
Jianwen Wang, National Engineering Research Ctr. for Information Technology in Agriculture (China)
Chang Liu, National Engineering Research Ctr. for Information Technology in Agriculture (China)


Published in SPIE Proceedings Vol. 10421:
Remote Sensing for Agriculture, Ecosystems, and Hydrology XIX
Christopher M. U. Neale; Antonino Maltese, Editor(s)

© SPIE. Terms of Use
Back to Top