TY - JOUR
T1 - Use of near infrared reflectance spectroscopy (NIRS) for predicting soil fertility and historical management.
AU - Freschet, G.T.
AU - Barthès, B.G.
AU - Brunet, D.
AU - Hien, E.
AU - Masse, D.
PY - 2011
Y1 - 2011
N2 - This study tests the potential of near infrared reflectance spectroscopy (NIRS) for predicting soil fertility and management history from topsoil (0-10 cm deep) spectra. Soil fertility was assessed by measuring the growth of a test plant, and soil management history was determined through inquiries with farmers. Moreover, NIRS predictive value was compared with that of a group of topsoil parameters: total carbon and nitrogen, nitrate, potential respiration and denitrification, and microbial biomass. Modelling used partial and modified partial least square regressions to ensure comparisons between predictions by NIRS versus by soil parameters. Soil fertility and management history were well predicted by NIRS (Q2 = 0.78 and R2 = 0.89 both; Q2 and R2 are cross-validation and calibration coefficients of determination, respectively), as were the soil parameters (Q2 = 0.79-0.92 and R2 = 0.86-0.98). Soil fertility and management history were more accurately predicted by NIRS than by the set of soil parameters. © Taylor & Francis Group, LLC.
AB - This study tests the potential of near infrared reflectance spectroscopy (NIRS) for predicting soil fertility and management history from topsoil (0-10 cm deep) spectra. Soil fertility was assessed by measuring the growth of a test plant, and soil management history was determined through inquiries with farmers. Moreover, NIRS predictive value was compared with that of a group of topsoil parameters: total carbon and nitrogen, nitrate, potential respiration and denitrification, and microbial biomass. Modelling used partial and modified partial least square regressions to ensure comparisons between predictions by NIRS versus by soil parameters. Soil fertility and management history were well predicted by NIRS (Q2 = 0.78 and R2 = 0.89 both; Q2 and R2 are cross-validation and calibration coefficients of determination, respectively), as were the soil parameters (Q2 = 0.79-0.92 and R2 = 0.86-0.98). Soil fertility and management history were more accurately predicted by NIRS than by the set of soil parameters. © Taylor & Francis Group, LLC.
U2 - 10.1080/00103624.2011.584597
DO - 10.1080/00103624.2011.584597
M3 - Article
VL - 42
SP - 1692
EP - 1705
JO - Communications in Soil Science and Plant Analysis
JF - Communications in Soil Science and Plant Analysis
SN - 0010-3624
ER -