Open AccessPrecision test for scanning of soil in durian orchard using near-infrared spectroscopy
Author(s) -
Thitima Phanomsophon,
Panmanas Sirisomboon
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/301/1/012070
Subject(s) - repeatability , near infrared spectroscopy , reproducibility , orchard , spectrometer , soil test , materials science , analytical chemistry (journal) , spectroscopy , environmental science , chemistry , soil science , horticulture , soil water , environmental chemistry , optics , chromatography , physics , quantum mechanics , biology
Near infrared (NIR) spectroscopy is a rapid technique for non destructive testing. Durian is popular fruit in Thailand. Growing durian is not easy. It needs to provide proper nutrients. Therefore, this paper aims to test the repeatability and reproducibility of NIR scanning before conducting the feasibility test of creating the equation to predict the N P K value in the soil for the durian trees. Results showed that the repeatability of FT-NIR spectrometer and Micro-NIR spectrometer for fresh soil were 0.064 and 0.075, respectively and for soil powder, they were 0.039 and 0.048, respectively. The reproducibility of FT-NIR spectrometer and Micro-NIR spectrometer for fresh soil were 0.048 and 0.051, respectively and for soil powder were 0.051 and 0.046, respectively.