| Treatmentb | Rate | Control (%) |
|
| |
|
| 4 WAT | 8 WAT | Density | Dry weight | |
| (g a.i. ha−1) | (plants m−2) | (g·m−2) | |||
| Weed-free control |
| 100 | 100 | 0 a | 0 a |
| Weedy control |
| 0 d | 0 d | 18.5 d | 28.2 e |
| Halosulfuron | 25 | 90 ab | 84 ab | 4.7 bc | 1.0 abc |
| Halosulfuron | 37.5 | 93 ab | 90 a | 2.8 b | 0.5 ab |
| Halosulfuron | 50 | 94 ab | 92 a | 3.0 bc | 2.0 bcd |
| Bentazon | 1080 | 36 c | 25 c | 9.5 cd | 9.6 de |
| Acifluorfen | 600 | 81 ab | 67 ab | 13.4 cd | 5.9 bcd |
| Fomesafenc | 240 | 92 ab | 88 ab | 4.1 bc | 1.3 abc |
| Bentazon/acifluorfend | 840 | 68 bc | 58 bc | 11.0 cd | 7.8 cd |
| Bentazon + fomesafen | 840 + 140 | 84 ab | 78 ab | 7.1 cd | 3.8 bcd |
| Halosulfuron + bentazon | 1080 + 37.5 | 94 ab | 91 a | 2.2 b | 0.5 ab |
| Halosulfuron + acifluorfen | 600 + 37.5 | 97 a | 94 a | 3.6 bc | 0.7 ab |
| Halosulfuron + fomesafen | 240 + 37.5 | 93 ab | 90 a | 3.8 bc | 1.3 abc |
| Halosulfuron + bentazon/acifluorfen | 840 + 37.5 | 94 ab | 88 ab | 4.7 bc | 1.7 bcd |
| Halosulfuron + bentazon + fomesafen | 840 + 140 + 37.5 | 95 ab | 91 a | 3.0 bc | 0.7 ab |