Table 4 Dry weight (g m−2) of grassy weeds in direct seeded rice in relation to changing sowing time and weed managing approaches (2 year pooled data).
Treatments | 30 DAS | 45 DAS | 60 DAS | At Harvest |
|---|---|---|---|---|
Sowing date | ||||
D1: May 10th | 3.47 (7.74) | 2.69 (10.23) | 3.21 (15.32) | 3.13 (10.64) |
D2: June 3rd | 4.00 (10.10) | 3.08 (13.56) | 3.78 (21.40) | 3.59 (14.05) |
SE(m) ± | 0.02 | 0.01 | 0.03 | 0.01 |
CD (p ≤ 0.05) | 0.06 | 0.05 | 0.10 | 0.05 |
Weed managing approach | ||||
W1: weedy check | 6.86 (25.66) | 5.77 (32.47) | 5.57 (42.15) | 5.81 (32.82) |
W2: four conoweedings (equivalent to weed free) | 1.00 (0.00) | 1.00 (0.00) | 1.00 (0.00) | 1.00 (0.00) |
W3: bensulfuron methyl + pretilachlor (PE) | 3.79 (7.54) | 3.41 (10.73) | 3.65 (17.47) | 3.50 (11.39) |
W4: oxyfluorfen, PE | 3.97 (8.30) | 3.41 (10.75) | 3.77 (18.69) | 3.56 (11.63) |
W5: bensulfuron methyl + pretilachlor (PE) fb 2, 4-D (PoE) | 3.21 (6.72) | 3.00 (10.75) | 3.36 (14.64) | 3.02 (8.30) |
W6: oxyfluorfen (PE) fb 2, 4-D (PoE) | 3.59 (8.30) | 3.19 (9.33) | 3.62 (17.21) | 3.29 (9.94) |
SE(m) ± | 0.07 | 0.05 | 0.05 | 0.03 |
CD (p ≤ 0.05) | 0.22 | 0.16 | 0.15 | 0.11 |
