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Revista EIA
versión impresa ISSN 1794-1237
Resumen
ARIAS, Sandra Cristina; PEREZ, Juan Carlos y RUEDA, Orfely María. LIXIVIACIÓN DE NITRATOS EN DOS SUELOS AL ALTERAR SUS PROPIEDADES FÍSICAS. Rev.EIA.Esc.Ing.Antioq [online]. 2004, n.2, pp.35-40. ISSN 1794-1237.
Two experiments in columns were carried out, to study how changes in organic matter and sand content of soil could affect its ability to retain added nitric nitrogen. Mixtures of A and B horizons or quartz sand and B horizon taken from soils belonging to Andisol and Oxisol orders, let us artificially change organic matter and sand content in each soil before a nitrate leaching test. Changes in sand content significantly reduce the ability to retain nitric nitrogen in both soils, and organic matter reduction accounted for a increase in nitrate leaching only in the Andisol. A brief discussion is shown, about the possible role of another conditions influencing nitrate leaching in this soils.
Palabras clave : Nitrate; leaching; Andisol; Oxisol.