The experiment was conducted during Kharif season of 2017 at Research Farm of Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh. The soil of experimental site was sandy clay loam in texture, medium in organic carbon (0.62%), availablenitrogen (285 kg/ha), available phosphorus (17.45 kg/ ha) and potassium (260 kg/ha) with neutral pH (7.1). The dominant weeds associated with direct-seeded rice in the experimental field were mainly comprised of monocot (Echinochloa colona), sedge (Cyperns iria) and dicot weeds (Mollugo pentaphylla, Phylanthus niruri, Eclipta alba, Corchorus olitorius and Alternanthera philoxeroides).Experlment consisted of total ten treatments comprising of seven doses of bentazone 600, 800, 1000, 1200, 1600, 1800 and2000 g/ha, 2,4-D 380 g/ha as post-emergence, hand weeding twice (20 and 40 DAS) including weedy check, were laid out in a randomized block design with 3 replications. The post-emergence application of bentazone at higher doses i.e. 1800 and 2000 g/ha was found effective in reducing the weed density of dicot weeds to a great extent.
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