00509naa a2200157 a 450000100080000000500110000800800410001910000140006024501060007426000090018070000190018970000160020870000200022470000170024477300900026110307692008-03-31       2006    bl ---       0--  u    #d1 aBAYER, C.  aTillage effects on particulate and mineral-associated organic matter in two tropical brazilian soils.  c20061 aMIELNICZUK, J.1 aGIASSON, E.1 aMARTIN-NETO, L.1 aPAVINATO, A.  tCommunications in soil science and plant analysis, New Yorkgv. 37, p. 389-401, 2006.