| Environment | Year | Cultivar | Planting date | Burndown application timing | |||||
| 2 WBP | 1 WBP | 0 WAP | 1 WAP | 2 WAP | 3 WAP | ||||
| S1 | 2008 | Dekalb 31-53 | May 29 | Apr. 29 | May 09 | May 29 | Jun. 5 | Jun. 11 | Jun. 19 |
| S2 | 2008 | Pioneer 30-07R | May 21 | May 6 | May 13 | May 23 | May 28 | Jun. 4 | Jun. 11 |
| S3 | 2009 | Dekalb 31-10RY | May 19 | May 5 | May 12 | May 20 | May 25 | Jun. 2 | Jun. 9 |
| S4 | 2009 | Dekalb 31-10RY | May 19 | May 5 | May 12 | May 20 | May 25 | Jun. 2 | Jun. 9 |
| S5 | 2010 | Dekalb 32-60RY | May 21 | May 6 | May 12 | May 26 | May 31 | Jun. 3 | Jun. 11 |
| S6 | 2010 | Dekalb 32-60RY | May 21 | May 6 | May 12 | May 26 | May 31 | Jun. 3 | Jun. 11 |