Table 11 Dry weed biomass (g m−2) of grasses, sedges and broadleaf weeds as influenced by sowing dates and weed management practices in DSR during the year 2018 and 2019.
Treatments | Grasses (at 60 DAS) | Sedges (at 60 DAS) | Broad leaf weeds (at 60 DAS) | |||
|---|---|---|---|---|---|---|
2018 | 2019 | 2018 | 2019 | 2018 | 2019 | |
Sowing dates | ||||||
D1: May 10th | 12.78 | 17.86 | 16.10 | 18.90 | 9.21 | 12.67 |
D2: June 3rd | 19.30 | 23.50 | 20.90 | 28.02 | 13.40 | 17.18 |
SE(m) ± | 0.22 | 0.27 | 0.31 | 0.34 | 0.19 | 0.39 |
CD (p ≤ 0.05) | 0.67 | 0.54 | 0.95 | 1.01 | 0.60 | 1.21 |
Weed management practices | ||||||
W1: weedy check | 39.53 | 44.77 | 43.28 | 52.92 | 27.98 | 32.24 |
W2: four conoweedings (equivalent to weed free) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
W3: BSM + pretilachlor, PE | 16.09 | 18.85 | 16.45 | 23.49 | 10.31 | 14.65 |
W4: Oxyfluorfen, PE | 16.26 | 21.12 | 20.09 | 22.63 | 10.46 | 16.24 |
W5: bensulfuron methyl + pretilachlor (PE) fb 2, 4-D (PoE) | 13.32 | 15.96 | 14.17 | 19.29 | 9.13 | 11.77 |
W6: oxyfluorfen (PE) fb 2, 4-D (PoE) | 14.72 | 19.70 | 17.55 | 21.79 | 10.66 | 13.92 |
SE(m) ± | 0.41 | 0.45 | 0.39 | 0.43 | 0.31 | 0.34 |
CD (p ≤ 0.05) | 1.19 | 1.32 | 1.06 | 1.31 | 0.95 | 0.98 |
