00858naa a2200217 a 450000100080000000500110000800800410001910000170006024500850007726000090016252002820017165000110045365000170046465000160048165300280049765300160052565300100054170000220055170000200057377300470059311539592017-02-20       2004    bl ---       0--  u    #d1 aSHOCK, C. C.  aPlant population and nitrogen fertilization for subsurface drip-irrigated onion.  c2004  aOnion (Allium cepa L.) production in the Treasure Valley of eastern Oregon and southwestern Idaho has been based on furrow irrigation with 318 kg.ha1 N fertilizer and average yields of 70 Mg.ha1, but these practices have been implicated in nitrate contamination of groundwater.  aCebola  aFertilizante  aIrrigação  aAbsorção de nutriente  aGotejamento  aOnion1 aFEIBERT, E. B. G.1 aSAUNDERS, L. D.  tHortSciencegv.39, n.7, p.1722-1727, 2004.