Effect of Growth Stage on the Efficacy of Postemergence Herbicides on Four Weed Species of Direct-Seeded Rice
Effect of postemergence herbicides (BisNa, bispyribac-sodium; Fx+etho, fenoxaprop-p-ethyl + ethoxysulfuron; Px+cyh, penoxsulam + cyhalofop) on aboveground dry biomass (g) and control (%) of southern crabgrass when sprayed at its four-, six-, and eight-leaf stages. Mean comparisons were performed based on least significant difference test at 5%.
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