00796nam a2200301 a 450000100080000000500110000800800410001910000260006024501200008626000390020630000090024565000110025465000130026565000170027865000230029565300110031865300110032965300160034065300150035665300160037165300130038765300130040065300150041365300120042865300090044070000240044970000210047312625882007-12-10       1977    bl uuuu     u0uu1 u    #d1 aBELTRÃO, N. E. de M.  aDeterminacao do periodo critico de competicao entre as ervas daninhas e o algodoeiro herbaceo-Gossypium hirsutum L.  aCampina Grande: EMBRAPA-CNPAc1977  a21p.  acotton  aAlgodão  aErva Daninha  aGossypium Hirsutum  aannual  aBrasil  aCassia tora  aCompeticao  aCompetition  aGurinhem  aHerbaceo  aMata pasto  aParaiba  aWeed1 aAGUIAR, M. de J. N.1 aCANUTO, V. T. B.