Weed management efficacy of herbicides and their mixtures in transplanted rice

An experiment was conducted at Research Farm, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Main campus at Chatha, Jammu, India during Kharif 2023 and 2024. The objective of this study was to evaluate the efficacy of a few herbicides and their mixtures in managing weeds and improve transplanted rice (Oryza sativa L.) productivity and economics. The higher number of rice effective tillers, dry matter accumulation, grain yield and straw yield were recorded with pre-emergence application (PE) of pyrazosulfuron-ethyl 15 g/ha followed by (fb) post-emergence application (PoE) of triafamone + ethoxysulfuron 66.5 g/ha which was statistically equivalent to pyrazosulfuron-ethyl 15 g/ha PE fb bispyribac-sodium 25 g/ha PoE. Pyrazosulfuron-ethyl 15 g/ha PE fb triafamone + ethoxysulfuron 66.5 g/ha PoE and pyrazosulfuron-ethyl 15 g/ha PE fb bispyribac-sodium 25 g/ha PoE have also recorded the lower weed density (48.68-77.36%), weed biomass (75.78-86.65%), weed index (85.61%), weed persistence index and higher weed control efficiency (75.78-86.66%); crop resistance index, higher net returns and benefit-cost ratio.