Instituto de Investigaciones Agrobiológicas de Galicia-Departamento de Bioquímica del Suelo/Consejo Superior de Investigaciones Científicas (IIAG/CSIC)
University of Santiago de Compostela-Department of Soil Sciences and Agricultural Chemistry
Galician Institute of Agrobiology Research-Department of Soil Biochemistry/High Council of Scientific Research (IIAG/CSIC)