Author(s): M. C. L. LAMANA, C. K. KUNDU, U. BISWAS, N. SAHA, B. BASU AND K.MURMU

Abstract: A field experiment was conducted during winter of 2012-13 at Regional Research Station, Chakdaha of West Bengal. Eight different weed control treatments viz. Four different doses of 2, 4 - D EE 80% EC applied at 0.225, 0.450, 0.675 and 0.900 kg a.i. ha-¹, 2, 4-D EE 38% EC at 0.450 kg a.i. ha-¹, Metsulfuron methyl 20% WP at 0.004 kg a.i. ha-¹, hand weeding twice at 25 and 45 DAS and unweeded control was studied in a randomized block design with replications thrice. The post emergence application of 2, 4-D EE 80 % EC @ 0.900 kg a.i. ha-¹ and 2, 4-D EE 80 % EC @ 0.675 kg a.i. ha-¹ resulted in effective weed control, recording the least weed density and weed dry weight. Hand weeding twice produced highest grain yield followed by 2, 4-D EE 80 % EC @ 0.900 kg a.i. ha-¹.

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