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@ARTICLE{Prata:45442,
      author       = {Prata, F. and Lavorenti, A. and Regitano, J. B. and
                      Vereecken, H. and Tornisielo, V. L. and Pelissari, A.},
      title        = {{G}lyphosate behavior in a rhodic oxisol under no-till and
                      conventional agricultural systems},
      journal      = {Revista brasileira de ciências do solo},
      volume       = {29},
      issn         = {0100-0683},
      address      = {Viçosa},
      publisher    = {Sociedade Brasileira de Ciência do Solo},
      reportid     = {PreJuSER-45442},
      pages        = {61 - 69},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The behavior of glyphosate in a Rhodic Oxisol, collected
                      from fields under no-till and conventional management
                      systems in Ponta Grossa, Parana state (Brazil) was
                      investigated. Both agricultural systems had been in
                      production for 23 years. Glyphosate mineralization,
                      soil-bound forms, sorption and desorption kinetics,
                      sorption/desorption batch experiments, and soil glyphosate
                      phythoavailability (to Panicum maximum) were determined. The
                      mineralization experiment was set up in a completely
                      randomized design with a 2 x 2 factorial scheme (two
                      management systems and two C-14 radiolabelled positions in
                      the glyphosate), with five replicates. (CO2)-C-14 evolution
                      was measured in 7-day intervals during 63 days. The
                      glyphosate sorption kinetics was investigated in a batch
                      experiment, employing a glyphosate concentration of 0.84 mg
                      L-1. The equilibration solution was 0.01 mol L-1 CaCl2 and
                      the equilibration times were 0.84 10, 30, 60, 120, 240, and
                      360 min. Sorption/desorption of glyphosate was also
                      investigated using equilibrium batch experiments. Five
                      different concentrations of the herbicide were used for
                      sorption (0.42,0.84,1.68,3.36, and 6.72 mg L-1) and one
                      concentration for desorption. Glyphosate phytoavailability
                      was analyzed in a 2 x 5 factorial scheme with two management
                      systems and five glyphosate concentrations added to soil (0,
                      4.2, 8.4, 42.0, and 210.0 mu g g(-1)) in a completely
                      randomized design. Phytotoxicity symptoms in P. maximum were
                      evaluated for different periods. The soil under both
                      management systems showed high glyphosate sorption, which
                      impeded its desorption and impaired the mineralization in
                      the soil solution. Practically the total amount of the
                      applied glyphosate was quickly sorbed (over $90\%$ sorbed
                      within 10 min). Glyphosate bound to residues did not have
                      adverse effects on P. maximum growth. The mineralization of
                      glyphosate was faster under no-till and
                      aminomethylphosphonic. acid was the main glyphosate
                      metabolite.},
      keywords     = {J (WoSType)},
      cin          = {ICG-IV},
      ddc          = {630},
      cid          = {I:(DE-Juel1)VDB50},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Soil Science},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000229525200007},
      doi          = {10.1590/S0100-06832005000100007},
      url          = {https://juser.fz-juelich.de/record/45442},
}