Response of dry direct seeded rice to sequential application of herbicide combinations

A field experiment was conducted during Kharif, 2022, Institute of Rice Research, Rajendranagar, Hyderabad in Telangana state. Fourteen weed management practices were evaluated in a randomized complete block design, replicated thrice. The lower weed dry weight at 60 DAS, number of panicles/m2 and grain yield was observed with T₁₃- Mechanical/ Hand weeding at 20, 40, 60 DAS (2.2) it was statistically on par with T₁₁- Pendimethalin 38.4% + Pyrazosulfuron ethyl 0.85% ZC 900 + 20 g/ha (Ready mix) PE followed by Metsulfuron Methyl 10% + Chlorimuron ethyl 10% WP 4 g/ha + Cyhalofop Butyl 10% EC 75 g/ha (Tank mix) PoE weed followed by mechanical weeding at 40-45 DAS. T₅- Pyrazosulfuron ethyl 10% WP 20 g/ha PE followed by Triafamone 20% + Ethoxysulfuron l0% WG 44 + 22.5 g/ha (Ready mix) PoE followed by mechanical weeding at 40-45 DAS, T₉- Pendimethalin 38.4% + Pyrazosulfuron ethyl 0.85% ZC 900 + 20 g/ha (Ready mix) PE followed by Triafamone 20% + Ethoxysulfuron l0% WG 44 + 22.5 g/ha (Ready mix) PoE followed by mechanical weeding at 40-45 DAS, T₂- Pendimethalin 38.7% CS 677.25 g/ha PE followed by Penoxsulam 1.02% + Cyhalofop-butyl 5.1% OD 135 g/ha (Ready mix) PoE at 2-4 leaf stage of the weed followed by mechanical weeding at 40-45 DAS, T₃- Pendimethalin 38.7% CS 677.25 g/ha PE followed by Metsulfuron Methyl 10% + Chlorimuron ethyl 10% WP 4 g/ha + Cyhalofop Butyl 10% EC 75 g/ha (Tank mix) PoE followed by mechanical weeding at 40-45 DAS.