Acknowledgements
Particular thanks to Ian Knapper of Defra for arranging access to the yield survey data. Thanks also to Manuela Gonzalez-Suarez and Richard Walters for constructive feedback on the development of these analyses. This work was supported by NERC national capability funding to CEH and the Natural Environment Research Council (NERC) and the Biotechnology and Biological Sciences Research Council (BBSRC) under research programme NE/N018125/1 LTS‐M ASSIST ‐ Achieving Sustainable Agricultural Systems (www.assist.ceh.ac.uk).