Freschet G. T. auteur aut IRD Barthès Bernard auteur aut IRD Brunet Didier auteur aut IRD Hien E. auteur aut IRD Masse Dominique auteur aut IRD text journalArticle eng text/pdf born digital access 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 (Q(2) = 0.78 and R-2 = 0.89 both; Q(2) and R-2 are cross-validation and calibration coefficients of determination, respectively), as were the soil parameters (Q(2) = 0.79-0.92 and R-2 = 0.86-0.98). Soil fertility and management history were more accurately predicted by NIRS than by the set of soil parameters. specialized Microbial activity near infrared reflectance spectroscopy (NIRS) soil fertility soil management soil organic matter 068 076 42 14 1692-1705 2011 0010-3624 https://www.documentation.ird.fr/hor/fdi:010055396 10.1080/00103624.2011.584597 0010-3624 [F B010055396] https://www.documentation.ird.fr/hor/fdi:010055396 https://www.documentation.ird.fr/intranet/publi/depot/2012-06-05/010055396.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2012-05-04 2023-07-26 fdi:010055396 fre