Proceedings of the Korean Society of Near Infrared Spectroscopy Conference (한국근적외분광분석학회:학술대회논문집)
- 2001.06a
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- Pages.1072-1072
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- 2001
EVALUATION OF RAPID DETERMINATION OF PHOSPHORUS IN SOILS BY NIR SPECTROSCOPY
- Ryu, Kwan-Shig (Dept. of Agricultural Chemistry, Taegu University) ;
- Kim, Book-Jin (Dept. of Agronomy, Yeungnam University) ;
- Park, Jin-Sook (Dept. of Agricultural Chemistry, Taegu University)
- Published : 2001.06.01
Abstract
The purpose of this research is to evaluate rapid determination of phosphorus in soils using NIR spectroscopy. The soil samples from the fields subject to different crops and land-use in Kyeongbook province, Korea were used to make the calibration and validation of the calibration set estimating phosphorus in soil. The NIR reflectance was scanned at 2nm intervals from 1100 to 2500nm with an InfraAlyzer 500 (Bran+Luebbe Co.). Various regression analyses were used to evaluate a NIRS method for determination of phosphorus in the soil. NIR absorption approach requires many soil samples to obtain optimal prediction. Applicability of NIR spectra technique may allow for the analysis of available soil phosphorus rapidly as well as total component within a few seconds.
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