Nitrate attenuation beneath two coffee plantations in the Central Valley of Costa Rica - Graham, Gwyn (Ontario, Canada, 1996)
Tesis (master of science in earth science)--University of Waterloo, 1996
Keywords: AGUAS SUBTERRANEAS -- VALLE CENTRAL (COSTA RICA); NITRATOS -- ANALISIS; CONTAMINACION DEL AGUA; BENEFICIO DE CAFE -- ASPECTOS AMBIENTALES; LIXIVIACION; ABONOS Y FERTILIZANTES; ANALISIS DE SUELOS