Abstract:A field experiment was conducted for two years during kharif 2011-12 and 2012-13 to study the bioefficacy of sequential application of herbicides in Bt cotton. Ten weed control treatments were tested in randomised block design and they were replicated thrice. The mean of two years data indicated that, all the herbicide treatments significantly reduced dry weight of weeds over unweeded control. Among the herbicide treatments sequential application of Pyrithiobac sodium at 0.125 kg/ha as pre emergence followed b… Show more
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