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Estimation of winter wheat canopy nitrogen density at different growth stages based on Multi-LUT approach

  • Zhenhai Li
  • , Na Li
  • , Zhenhong Li
  • , Jianwen Wang
  • , Chang Liu
  • Newcastle University
  • National Engineering Research Center for Information Technology in Agriculture

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

摘要

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.

源语言英语
主期刊名Remote Sensing for Agriculture, Ecosystems, and Hydrology XIX
编辑Antonino Maltese, Christopher M. U. Neale
出版商SPIE
ISBN(电子版)9781510613065
DOI
出版状态已出版 - 2017
活动Remote Sensing for Agriculture, Ecosystems, and Hydrology XIX 2017 - Warsaw, 波兰
期限: 12 9月 2017 → 15 9月 2017

丛书

姓名Proceedings of SPIE - The International Society for Optical Engineering
卷10421
ISSN(印刷版)0277-786X
ISSN(电子版)1996-756X

会议

会议Remote Sensing for Agriculture, Ecosystems, and Hydrology XIX 2017
国家/地区波兰
市Warsaw
时期12/09/17 → 15/09/17

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