00658naa a2200181 a 450000100080000000500110000800800410001910000160006024500940007626000090017052001650017965000210034465000120036565000070037770000190038470000170040377300560042016177321995-06-27       1993    bl uuuu     u00u1 u    #d1 aCAHN, M. D.  aAmelioration of subsoil acidity in an oxisol of the humid tropics.h[electronic resource]  c1993  aThis work investigated the effectsof amendments of fertilizer N and lime on subsoil acidity and maize rooting depth in an acid soil of the central Amazon basin.  aAdubação Verde  aCalagem  aPh1 aBOULDIN, D. R.1 aCRAVO, M. S.  tBiol. Fertil. Soilsgv. 15, n. 2, p. 153-159, 1993.