Treatment No. of broad leaf weeds/m2 No. of grassy weeds/m2 No. of sedge weeds/m2
30 DAS 40 DAS 30 DAS 40 DAS 30 DAS 40 DAS
T1 30.94 40.29 65.40 67.27 22.43 27.93
T2 15.98 20.89 16.27 17.29 6.44 7.44
T3 1.48 1.50 1.22 1.50 1.75 2.50
T4 20.33 21.11 11.88 20.78 12.50 14.49
T5 16.73 19.49 13.23 17.60 14.00 17.51
T6 20.94 22.45 14.48 21.44 10.00 15.48
T7 15.99 20.20 12.61 16.5 10.00 15.32
T8 13.40 16.93 14.01 18.48 11.50 15.88
T9 15.45 17.90 12.22 23.32 11.50 12.95
T10 15.88 19.96 13.11 21.01 11.00 15.51
T11 13.04 21.88 15.22 16.04 16.00 16.72
T12 19.34 22.23 13.66 19.51 13.50 16.73
T13 14.85 17.22 13.55 17.44 12.50 19.61
T14 14.44 21.88 13.22 18.44 12.00 17.99
SE m (±) 1.26 1.61 0.72 0.80 1.42 1.55
CD at 5% 3.80 4.85 2.22 2.46 4.29 4.69
Note T1: No weeding (weedy check); T2: Hand weeding at 20 & 40 DAS; T3: Total Weed free (Regular weeding as and when required); T4:Quizalofop-p-ethyl@37.50 g a.i. ha-1; T5:Quizalofop-p-ethyl@75.00 g a.i. ha-1; T6: Pendamethalin@1 kg a.i. ha-1; T7: Pendamethalin@2 kg a.i. ha-1; T8: Imazethapyr @ 25 g a.i. ha-1; T9: Imazethapyr@40 g a.i. ha-1; T10: Imazethapyr@55 g a.i. ha-1; T11: Fenoxaprop-p-ethyl@50 g a.i. ha-1; T12: Fenoxaprop-p-ethyl@100 g a.i. ha-1; T13: Vellore 32 (Pendamethalin 30 EC+Imazethapyr 2 EC)@0.75 kg a.i. ha-; T14: Vellore 32 (Pendamethalin 30 EC+Imazethapyr 2 EC)@1.00 kg a.i. ha-1. *DAS: Days after sowing.
Table 1: Effect of herbicides on weed population of green gram crop. (Pooled data of two years).