| Enhanced burndown |
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| Soil characteristics | Seeding | Herbicide application | Common ragweed | |||
| Location | Year | Closest city | Texture | OM (%) | pH | Date | Date | Size (cm) | Density (m−2) |
| S1 | 2013 | Windsor | Clay | 3.1 | 7.2 | May-27 | May-15 | up to 5 | 157 |
| S2 | 2013 | Windsor | Clay | 3.1 | 7.2 | May-27 | May-27 | up to 10 | 101 |
| S3 | 2014 | Windsor | Clay Loam | 3.4 | 7.2 | May-26 | May-22 | up to 9 | 1925 |
| S4 | 2014 | Belle River | Clay Loam | 2.8 | 7.5 | May-26 | May-25 | up to 4 | 64 |
| Burndown plus residual |
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| S1 | 2013 | Windsor | Clay | 3.1 | 7.2 | May-27 | May-15 | up to 5 | 327 |
| S2 | 2013 | Windsor | Clay | 3.1 | 7.2 | May-27 | May-27 | up to 10 | 45 |
| S3 | 2014 | Windsor | Clay Loam | 3.4 | 7.2 | May-26 | May-22 | up to 5 | 1522 |
| S4 | 2014 | Windsor | Clay Loam | 3.4 | 7.2 | May-26 | May-25 | up to 10 | 1061 |