**Acknowledgements**

We thank the Government of Western Australia and the Grains Research and Development Corporation for investing in various soil research projects under the Soil Constraints West banner. We are grateful to Chris Gazey and Dr. Stephen Davies for pioneering the management of multiple soil constraints in Western Australian agriculture and the many challenging and productive conversations in this area. We thank Daron Malinowski, Richard Bowles, Hasinur Rahman, Alistair Hall for helping in these research projects and other technical staff from DPIRD's research support operations.
