Comparing the FieldScout GreenIndex+ Chlorophyll Sensing App to the Minolta SPAD MeterAgronomy Conference Proceedings and Presentations
Publication VersionPublished Version
AbstractWith the improvement of mobile computing, the company Spectrum Technologies, Inc. has developed a precision Ag App which adapts an iPod, iPad, or iPhone camera to select for specific wavelengths of light from a corn leaf (Zea mays L.) in comparison to accompanying board for light/color comparison. The App computes a Dark Green Color Index (DGCI), indicating leaf greenness, which relates to the amount of chlorophyll and thus, indirectly, leaf nitrogen (N) content. The question posed for this study is: How accurate and convenient is the App compared to a proven technology, the Minolta 502 Soil-Plant Analysis Development (SPAD) meter; do they provide the same information?
Copyright OwnerIowa State University
Citation InformationJessica D. Pille, John E. Sawyer and Daniel W. Barker. "Comparing the FieldScout GreenIndex+ Chlorophyll Sensing App to the Minolta SPAD Meter" (2011)
Available at: http://works.bepress.com/john-sawyer/26/