Abstract
Three herbicidal mixtures, viz. triafamone 20% + ethoxysulfuron 10% (pre-mix) 67.5 g/ha, 12 days after sowing (DAS), cyhalofop-butyl+ penoxsulam 6% OD (pre-mix) 150 g/ha, 20 DAS, and fenoxaprop-p-ethyl 6.9 EC 60 g/ha+ ethoxysulfuron 15 WDG (tank mix) 15 g/ha, 20 DAS were evaluated for their efficacy against weeds in wet-seeded rice. These treatments were compared with bispyribac-sodium, hand weeding twice and unweeded control. Application of triafamone + ethoxysulfuron, and cyhalofop-butyl + penoxsulam, significantly reduced the weed biomass followed by the treatments bispyribac-sodium, and hand weeding at 60 DAS. Fenoxaprop-pethyl + ethoxysulfuron had significantly lower weed control efficiency, probably due to its inability to control Echinochloa crus-galli effectively. Considering rice grain and straw yields, all herbicide treatments were at par except for fenoxaprop-p-ethyl + ethoxysulfuron, which recorded significantly lower values. Among yield attributes, significantly higher number of panicles/m2 was recorded in the treatments triafamone + ethoxysulfuron, and hand weeding, followed by cyhalofop-butyl+ penoxsulam. Grain and straw yields were lowest in unweeded control.
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