Required changes in nitrogen inputs and nitrogen use efficiencies to reconcile agricultural productivity with water and air quality objectives in the EU-27 /
Vries, Wim de,1959-author.
Schulte-Uebbing, Lena,author.
International Fertiliser Society,publisher.
"Paper presented to the International Fertiliser Society at a Conference in Cambridge, UK, on 12th December 2019."
Includes bibliographical references (pages 32-39).