Becquer Thierry auteur aut IRD Rigault F. auteur aut IRD Jaffré Tanguy auteur aut IRD text journalArticle eng text/pdf reformatted digital access To measure nickel (Ni) bioavailability experiments were conducted in the field using ion exchange resin (IER) method. Resin bags were inserted into the upper layer of soils developed on ultramafic rocks in New Caledonia. Their Ni contents were determined after four weeks and compared to those of plant leaves of five species. Significant correlations were obtained so that the IER appeared to be successful for routine applications. Furthermore, the use of chemical reactants such as diethylenetriaminepentaacetic acid (DTPA) and KCl demonstrated to be much less reliable for assessing the bioavailability of Ni. specialized NICKEL RELATION SOL PLANTE SOL FLEUR ASSIMILATION ROCHE ULTRAMAFIQUE NOUVELLE CALEDONIE 076PHYBIO03 33 3-4 439-450 2002 0010-3624 https://www.documentation.ird.fr/hor/fdi:010060943 10.1081/CSS-120002755 0010-3624 [F B010060943] https://www.documentation.ird.fr/hor/fdi:010060943 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers19-09/010060943.pdf IRD - Base Horizon / Pleins textes 2013-11-21 2020-12-11 fdi:010060943 fre