1. Maize Yield Response to Zinc Sources and Effectiveness of Diagnostic Indicators. Issue 2 (19th January 2016) Authors: Ruffo, Matías; Olson, Ron; Daverede, Inés Journal: Communications in soil science and plant analysis Issue: Volume 47:Issue 2(2016) Page Start: 137 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗