00567nam a2200181 a 450000100080000000500110000800800410001910000180006024500830007826000530016130000100021450000470022465000270027165000270029865000200032565000170034565000230036210395362019-09-18       1998    bl uuuu  m   00u1 u    #d1 aMARTINO, D.L.  aAlleviation of soil physical constraints in direct-seeding systems in Uruguay.  aWinnipeg, Manitoba: University of Manitobac1998  a264p.  aTesis (Ph.D.) University of Manitoba, 1998  aCOMPACTACION DEL SUELO  aRESPUESTA DE LA PLANTA  aSIEMBRA DIRECTA  aSUBSOLADORES  aSYSTEMS IN URUGUAY