Environment | Year | Planting date | Burndown timingb (weeds∙m−2) | |||||
2 WBP | 1 WBP | 0 WAP | 1 WAP | 2 WAP | 3 WAP | |||
S1 | 2008 | May 29 | 2004 | 2273 | 1089 | 1348 | 1506 | 1181 |
S2 | 2008 | May 21 | 70 | 84 | 52 | 21 | 36 | 31 |
S3 | 2009 | May 19 | 30 | 14 | 29 | 29 | 134 | 140 |
S4 | 2009 | May 19 | 28 | 50 | 38 | 40 | 29 | 35 |
S5 | 2010 | May 21 | 78 | 90 | 99 | 98 | 107 | 71 |
S6 | 2010 | May 21 | 151 | 123 | 141 | 131 | 154 | 127 |