Methodology to assess economic and environmental impacts of nitrogen in fertirrigation systems. - María Jesús Cabello Cabello; Francisco Ribas Elcorobarrutia; CASTELLANOS SERRANO, MARIA TERESA; ARCE MARTINEZ, AUGUSTO; CARTAGENA CAUSAPE, MARIA CARMEN; TARQUIS ALFONSO, ANA MARIA (Geophysical Research Abstracts, Vol. 13, 2011)