A method for assessing available phosphorus content in arable topsoils over large spatial scales Stéphane Follain, Christian Schvartz, Pascal Denoroy, Christine Villette, Nicolas P.A. Saby, Dominique Arrouays, Blandine Lemercier and Christian WalterAgron. Sustain. Dev., 29 2 (2009) 371-379DOI: https://doi.org/10.1051/agro:2008046
