00370nam a2200133 a 450000100080000000500110000800800410001910000170006024500540007726000610013165000150019265000100020765300190021719375152012-10-23       2012    bl uuuu     u00u1 u    #d1 aCONCENCO, G.  aPlantio diretobsolo coberto, invasoras ausentes.  aA Granja, Porto Alegre, ano 68, n. 766, out. 2012.c2012  ano-tillage  aweeds  aPlanta daninha