Condron, LMSinaj, SChen, CRDavis, MRSherlock, RRFrossard, E2024-09-232024-09-232000-12https://hdl.handle.net/10182/17627Chemical extraction methods are widely used to determine plant available soil phosphorus (P). However, these methods can only provide an approximate measure of potentially available P (Fardeau, 1996). The objectives of this study were to investigate the use of isotopic exchange kinetics (IEK) to assess P availability in a range of grassland soils and to compare IEK with chemical extraction.pp.51-52© New Zealand Society of Soil ScienceConference Contribution - published