| 光谱学与光谱分析 |
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| Study on the Relationship between Spectral Properties of Oilseed Rape Leaves and Their Chlorophyll Content |
| FANG Hui1, SONG Hai-yan1，2, CAO Fang1, HE Yong1, QIU Zheng-jun1* |
1. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310029, China
2. College of Engineering and Technology, Shanxi Agricultural University, Taigu 030801, China |
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Abstract Chlorophyll is the important factors of the crop in its growth stage, and it is the favorable indicator of nutrition stress and photosynthesis. Site-specific crop nutrition diagnosis is the basics of the scientific fertilizer management, and it is essential for the practice of precision agriculture. Spectral properties of the oilseed rape leaves in different nitrogenous fertilizer levels were measured using visible-near infrared reflectance spectroscopy (Vis-NIRS) with natural illumination in the present study. According to the unique spectral properties of the crop, multiple stepwise regression technique was used to find the relationships between chlorophyll content and red edge, green edge. The result shows that the model with two independent variables (red edge, green edge) was better than with the one independeot variable (red edge). The correlation coefficient was 0.863, 0.848, and SEC was 5.273, 5.459, respectively. It can be seen the combination of the red edge and green edge can accurately predict chlorophyll content.
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Received: 2006-08-06
Accepted: 2006-11-08
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Corresponding Authors:
QIU Zheng-jun
E-mail: zjqiu@zju.edu.cn
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| Cite this article: |
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FANG Hui,SONG Hai-yan,CAO Fang, et al. Study on the Relationship between Spectral Properties of Oilseed Rape Leaves and Their Chlorophyll Content[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(09): 1731-1734.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I09/1731 |
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