Scopus-Elsevier X Congress of the European Society for Agronomy. Multi-functional Agriculture. Agriculture as a Resource for Energy and Environmental Preservation, pp. 797–798, Bologna, 15-19 September 2008 info:cnr-pdr/source/autori:Mereu V; Iocola I; Spano D; Murgia V; Duce P; Cesaraccio C; Tubiello FN; Fischer G/congresso_nome:X Congress of the European Society for Agronomy. Multi-functional Agriculture. Agriculture as a Resource for Energy and Environmental Preservation/congresso_luogo:Bologna/congresso_data:15-19 September 2008/anno:2008/pagina_da:797/pagina_a:798/intervallo_pagine:797–798