00497naa a2200181 a 450000100080000000500110000800800410001910000200006024500910008026000090017165000160018065300170019665300090021365300080022265300210023070000180025177300460026915996511995-06-27       1977    bl ---       0--  u    #d1 aSAFFIGNA, P. G.  aNitrate and chloride in ground water under irrigated agriculture in central Wisconsin.  c1977  aNitrogênio  aAGUA NO SOLO  aPCO2  aPO2  aVARIOS ELEMENTOS1 aKEENEY, D. R.  tGround Watergv.15, n.2, p.170-177, 1977.