Dry direct-seeded rice, Fenoxaprop-p-ethyl + ethoxysulfuron, Integrated weed management, Pendimethalin, Sowing dates

A field study was carried out during Kharif, 2023 and 2024 at Agriculture research station, Binjhagiri, Chatabar, Odissa with an objective to study the interactive effect of sowing dates and weed management options on weed growth and productivity of dry direct-seeded rice. The experiment was laid out in split plot design with three replications. The three dates of sowing, viz. S1: 10th June; S2:25th June; S3:10th July, were in main plots and five weed management treatments, viz. pre-emergence application (PE) of pendimethalin1.0 kg/ha , pendimethalin 1.0 kg/ha PE followed by (fb) post-emergence application (PoE) of fenoxaprop-p-ethyl + ethoxysulfuron (tank-mix) 90.0 +15.0 g/ha, pendimethalin 1.0 kg/ha PE fb one hand weeding (HW) at 40 days after seeding (DAS), hoeing and weeding twice at 20 and 40 DAS and weedy check, were in subplots. The lowest density and biomass of all types of weeds and maximum value of rice yield attributes and yield were recorded with normal date of sowing (25th June) followed by early sowing (10th June). Among the weed management treatments, hoeing and weeding twice at 20 and 40 DAS recorded lower total weed density, maximum value of rice yield attributes and yield, and was at par with pendimethalin1.0 kg/ha PE fb one HW. Interaction effect was found significant and the timely sown (25th June) along with hoeing and weeding twice recorded the highest rice yield and was at par with timely sown (25th June) along with pendimethalin 1.0 kg/ha PE fb one HW.