Author(s):

Champak Kumar Kundu, Ramyajit Mondal, Arindam Kundu, Saumi Goswami and MD. Hedayetullah

Abstract: The field trial was conducted during Kharif season of 2012 at RRS, New Alluvial Zone, Gayeshpur, BCKV, WB to reveal the bio-efficacy and phytotoxicity of 2,4-D Amine 50% SL in maize. The experiment comprising of nine treatments and laid out in randomized block design with replicated thrice. Application of 2,4-D amine 50% SL 2.0 kg a.i. ha^-1 and of 2,4-D amine 50% SL1.0 kg a.i. ha^-1 have resulted in significantly effective weed control followed by Atrazine 50 % WP 0.25 kg a.i. ha^-1 and contributed in significantly high grain yield through these said treatments which were statistically comparable to hand weeding twice. Even up to 2.0 kg a.i. ha^-1 of 2, 4-D amine 50% SL application there was found no phytotoxicity in maize. So, this treatment can be a good option for Kharif maize in medium land condition under sub-humid and sub-tropical condition of West Bengal.

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