Effectiveness of Ethylenediamine-N(o-hydroxyphenylacetic)-N′(p-hydroxyphenylacetic) acid (o,p-EDDHA) to Supply Iron to Plants - Sonia García-Marco; Noelia Martínez; Felipe Yunta; Lourdes Hernández-Apaolaza; Juan J. Lucena (Plant and Soil, 2006)