AUTHOR=Millán R. , Schröder P. , Sæbø A. TITLE=Editorial: Options for Transition of Land Towards Intensive and Sustainable Agricultural Systems JOURNAL=Frontiers in Plant Science VOLUME=10 YEAR=2019 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2019.00346 DOI=10.3389/fpls.2019.00346 ISSN=1664-462X