RT Journal Article T1 Sobre la utilización de la clasificación de las aguas de riego del U.S. Laboratory Salinity (USLS) T1 About the use of the U.S. Salinity Laboratory (USLS) classification of irrigation water A1 Olías Álvarez, Manuel A1 Cerón García, Juan Carlos A1 Fernández, I. AB One of most used methods in our country to determinate the soil salinisation and sodification risk fromthe irrigation water composition is the U.S. Salinity Laboratory (USLS) classification, which used the electricalconductivity and the SAR (Sodium Adsorption Rate) of the irrigation water. However, it is well known thatthis method presents serious defects, because of it should be substitute by other more adecuatedclassifications, as the developped by the FAO PB Sociedad Geológica de España YR 2004 FD 2004 LK http://hdl.handle.net/10272/8899 UL http://hdl.handle.net/10272/8899 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026