Effect of 2, 4-D Ethyl Ester 80% EC to control weeds in Wheat and its residual effect on succeeding crop Blackgram

The experiment was conducted during Rabi season of 2013-14 and summer season of 2014 at RRS, New Alluvial Zone, Chakdaha, BCKV, WB to disclose the bio-efficacy and phytotoxicity of 2,4-D Ethyl Ester 80% EC in wheat and its effect on succeeding crop blackgram. The field trial consisting of eight different treatments and laid out in randomized block design with three replications. Application of 2,4-D EE 80% EC 0.90 kg a.i. ha-1and 2, 4-D EE 80% EC 0.675 kg a.i. ha-1 have resulted in effective weed control, and contributed in significantly high grain yield of wheat and no phytotoxicity through these said treatments which were statistically comparable to hand weeding twice. 2, 4-D EE 80% EC applied on wheat with different doses have found no residual effect on germination and yield of succeeding blackgram crop. So, these treatments can be a good option for wheat and succeeding black gram under sub-humid and sub-tropical condition of West Bengal.