Author(s): M. K. DATTA, C. K. KUNDU, S. SINGHAROY AND S. K. SARKAR

Abstract: A field experiment was conducted at regional research station of Bidhan Chandra Krishi Viswavidyalaya, Chakdaha, Nadia, West Bengal in 2014 to study the effectiveness of weeds control in Kharif paddy by the application of 2,4-D Ethyl Ester 80 per cent EC. The predominant weed flora found in the experiment viz. Echinochloa colona, Echinochloa crussgalli, Cyperus difformis, Cyperus iria, Eclipta alba, Ludwigia parviflora etc. 2,4-D EE 80 per cent EC @ 3.40 kg a.i. ha^-1 and 2,4 –D EE 80 per cent EC @ 1.70 kg a.i. ha^-1 recorded the higher weed control efficiency compared to hand weeding twice at 20 and 40 DAT. Among yield parameters, the application of 2,4-D EE 80per cent EC @ 3.40 kg a.i.ha^-1 plots found better results after hand weeding twice (20 & 40 DAT) plot. It was also revealed that 2, 4-D EE 80per cent EC @ 3.40 kg a.i. ha^-1 was at par with other different doses of herbicide treatments.

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