01256nam a2200181 a 450000100080000000500110000800800410001910000200006024500880008026001810016852006190034965000210096865000100098965300150099970000210101470000240103570000150105920211002015-08-20       2005    bl uuuu     u00u1 u    #d1 aPIRES, A. M. M.  aOrganic acids and biosolid trace elements phytoavailability.h[electronic resource]  aIn: INTERNATIONAL CONFERENCE ON THE BIOGEOCHEMISTRY OF TRACE ELEMENTS, 8., 2005, Adelaide, Australia. Conference proceedings… Adelaide, Australia: ICOBTE, 2005. p. 1-2.c2005  aTrace metals phytoavailability is a major concern related to land application of biosolids. Formation of soluble complexes between metals and organic acids exudates in the rhizosphere b plants or produced by microbial activity seems to play an important role on trace metals phytoavailability (Mench & Martin, 1991; Marschner, 1995). The present study was carried out; i)to determine organic acids present at the rhizosphere of different plant species cultivated in the presence or absence of biosolids; and ii) to assess the correlation between production of organic acids and the shoot content of trace elements.  aÁcido Orgânico  aMetal  aBiosólido1 aMATTIAZZO, M. E.1 aGUILHERME, L. R. G.1 aMARCHI, G.