1. Sydney Institute of Agriculture; University of Sydney; Narrabri Australia
2. Graham Centre for Agricultural Innovation; Charles Sturt University; Wagga Wagga Australia
3. School of Plant, Environmental, and Soil Sciences; Louisiana State University AgCenter; Baton Rouge USA
4. Department of Crop, Soil, and Environmental Sciences; University of Arkansas; Fayetteville USA
5. USDA-ARS Global Change and Photosynthesis Research Unit; Urbana USA
6. Agriculture and Agri-Food Canada; Lacombe Canada
7. Agriculture and Agri-Food Canada; Saskatoon Canada
8. Crop & Soil Sciences; Washington State University; Pullman USA
9. Bioagricultural Sciences and Pest Management Department; Colorado State University; Fort Collins USA
10. Agroecology, Rothamsted Research; Harpenden UK
11. Department of Soil and Crop Sciences; Texas A&M University, College Station; USA