01864naa a2200301 a 450000100080000000500110000800800410001902400340006010000200009424501530011426000090026750000450027652009150032165000120123665000240124865000230127265000100129565000090130565300230131465300270133765300130136465300200137770000200139770000200141770000150143770000190145277300910147120481092018-07-24       2016    bl uuuu     u00u1 u    #d7 a10.1021/acs.jafc.5b046642DOI1 aREGITANO, J. B.  aEffect of soil water content on the distribuition of diuron into organomineral aggregates of highly weathered tropical soils.h[electronic resource]  c2016  aEntrada padronizada: MILORI, D. M. B. P.  aWe evaluated the effects of soil water content on the retention of diuron and its residual distribution into organomineral aggregates in four Brazilian oxisols. 14C-Diuron was incubated for days at 25, 50, and 75% of maximum water-holding capacity for each soil. After 42 days, the physical fractionation method was used to obtain &gt150, 53–150, 20–53, 2–20, and &lt2 μm aggregate sizes. Diuron retention increased with increasing soil water content for all soils. At lower soil water content, diuron’s retention was higher in the sandier soil. It was mostly retained in the fine (&lt20 μm) aggregates of sandier soil, and for clayed soils, retention was higher in the coarse aggregates (&gt53 μm). The sorption coefficients (Kd and Koc) generated by batch studies should be carefully used because they do not provide information about aggregation and diffusion effects on pesticides soil sorption.  aOxisols  asoil organic matter  aSoil water content  aÁgua  aSolo  aPesticide sorption  aPhysical fractionation  aTropical  aWater diffusion1 aROCHA, W. S. D.1 aBONFLEUR, E. J.1 aMILORI, D.1 aALLEONI, L. R.  tJournal of Agricultural and Food Chemistry. [S. l.]gv. 64, n. 20, p. 3935-3941, 2016.