00363naa a2200121 a 450000100080000000500110000800800410001910000160006024500650007626000090014170000250015077300660017518237381996-08-28       1996    bl uuuu     u00u1 u    #d1 aPOTTKER, D.  aPotássio nos solos do Planalto Médio do Rio Grande do Sul.  c19961 aESCOSTEGUY, P. A. V.  tPlantio Direto, Passo Fundogn. 34, p. 28-29, jul./ago. 1996.