00918   #a2200421  #4500001001000000004000500010005001700015006000300032008000400035010001600039010001800055011000500073014000700078021000500085035000500090041000700095047000500102068000500107082001300112082001100125100000500136110000500141111005900146245000500205245011700210260001500327260000900342260001000351300000500361555000500366650002400371650001400395650001500409650002400424650001100448650001300459650002400472  aLibros  aC20140826164027.0am  a  aShenk, M.D.  aSaunders, J.L  a  a24  a  a  aEn  a  a  aCATIE-SC  a(4122)  a  a  aSymposium on No-tillage crop production in the tropics  a  aVegetation management systems for crop production in tropical regions of Central America: the case of Costa Rica  aCosta Rica  c1981  bCATIE  a  a  aCultivo intercalado  aEnergía  aHerbicidas  aLimón, Costa Rica  aMaíz  aZea mays  aSistemas de cultivo