Table 5. Soil and Yield properties of growth locations.
| Site Name | Site Location | PrimarySoil Type | Soil Classification | Average Estimated Maize Yield Mt ha−1 |
| ISU Agronomy and Ag Engineering Research Farm | Boone IA | Clarion loam | Typic Hapludoll | 11.5 |
| OD Butler Jr Animal Science Complex and University Farm | Burleson TX | Boonville fine sandy loam | Chromic Vertic Albaqualf | 2.9 |
| Bradford Research and Extension Center | Columbia MO | Mexico silt loam | Vertic Epiaqualf | 11.0 |
| Purdue Agronomy Center for Research Education | West Lafayette IN | Toronto-Millbrook complex | Udollic Epiaqualf | 8.6 |
| Musgrave Research Farm | Poplar Ridge NY | Lima silt loam | Oxyaquic Hapludalf | 7.5 |
| Crop Sciences Research and Education Center | Urbana IL | Drummer silty loam | Typic Endoaquoll | 11.0 |