Low-cost light-emitting-diode based leaf color meter for nitrogen status estimation in the rice field

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 7847, Issue , 2010, Pages

  Sumriddetchkajorn, Sarun ^a   Intaravanne, Yuttana ^a  

^a NATIONAL ELECTRONICS AND COMPUTER TECHNOLOGY CENTER   (Thailand)

Author keywords

Agri Photonics; Colorimeters; Leaf Color Charts; Nitrogen; Optical Spectrometers; Opto Electronics; Photonics; Rice

Indexed keywords

AGRI-PHOTONICS; LEAF COLOR; OPTICAL SPECTROMETERS; OPTO-ELECTRONICS; RICE;

COLORIMETERS; COLORIMETRY; COST BENEFIT ANALYSIS; ELECTROOPTICAL DEVICES; LIGHT EMISSION; LIGHT EMITTING DIODES; NITROGEN; NITROGEN FERTILIZERS; OPTOELECTRONIC DEVICES; PHOTONICS; SPECTROMETERS; SPECTROMETRY;

COLOR;

EID: 78650912365     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.870168     Document Type: Conference Paper

References (12)

1. H. Shiga, N. Miyazaki, and S. Sekiya, "Time of fertilizer application in relation to the nutrient requirement of rice plants at successive steps," Proc. Int. Seminar on Soil Envion. And Fertil. Manage. In Intensive Agric., 223-229, Tokyo, Japan, Aug. 20 (1977).
2. J. R. Evans, "Nitrogen and photosynthesis in the flag leaf of wheat," Plant Physiol. 72, 297-302 (1983).
3. S. Watanebe, Y. Hatanaka, and K. Inada, "Development of a digital chlorophyII meter: I. structure and performance," Jpn. J. Crop. Sci. 49, 89-90 (1980).
4. S. Furuya, "Growth diagnosis of rice plant by means of leaf color." Jpn. Agric. Res. Quart 20, 147-153 (1987).
5. C. Witt, J. M. C. A. Pasuquin, R. Mutters, and R. J. Buresh, "New leaf color chart for effective nitrogen management in rice," Better Crops 89, 36-39 (2005).
6. W.- H. Yang, S. Peng, J. Huang, A. L. Sanico, R. J. Buresh, and C. Witt, "Using leaf color charts to estimate leaf nitrogen status of rice," Agron. J. 95, 212-217 (2003).
7. Z. Islam, B. Bagchi, and M. Hossain, "Adoption of leaf color chart for nitrogen use efficiency in rice: impact assessment of a farmer-participatory experiment in West Bengal, India," Field Crops Res. 103, 70-75 (2007).
8. L. Krannuch, Using leaf color chart for nitrogen fertilizer management in irrigated rice fields, Rice Research Institute, April (2005).
9. B. Sutapan, R. Amarit, and A. Somboonkaew, "Color analyzers for the analysis of concentration and color of the solution," Thailand Pretty Patent 1400, June 4 (2004).
10. S. Sumriddetchkajorn and K. Chaitavon, "Scalable highly sensitive optical touch keyboards," Opt. Engg. 45, 043005-1-043005-6 (2006).
11. S. Sumriddetchkajorn and R. Amarit, "Ultra-high-contrast low-leakage-light optical touch device structures using light scattering and total internal reflection concepts," Sens. Actuators A: Phys. 126, 68-72 (2006).
12. S. Sumriddetchkajorn and R. Amarit, A large-active-area light-blocking based switch for people with disability," Sens. Actuators A: Phys. 134, 525-531 (2007).