Study on nitrogen stress characterization of rape based on ground multi-spectral imaging sensor

被引：0
|
作者：
Feng, L [1 ]
He, Y [1 ]
Zhu, ZY [1 ]
Huang, M [1 ]
机构：
[1] Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310029, Peoples R China
来源：
ICO20: REMOTE SENSING AND INFRARED DEVICES AND SYSTEMS | 2006年 / 6031卷
关键词：
multi spectral image; SPAD; nitrogen deficiency; rape; reflectance;
D O I：
10.1117/12.667932
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
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 (m(2)). Some noticeable relationships between the multi-spectral reflectance and SPAD readings were found from this study.
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页数：8
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