Influence of sowing dates and integrated weed management strategies on weed dynamics in irrigated wheat (Triticum aestivum)

Abstract

A field experiment was conducted during rabi 2020-2021 and 2021-2022 at the research farm of S.D.J. Post Graduate College Chandeswar, Azamgarh (U.P.), to study the effect of sowing dates and weed management practices on the productivity of wheat (Triticum aestivum L.). Among sowing dates, the 25th October sown crop recorded the lowest total weed density and dry weight of weeds compared to the crop sown in a later period. Significantly low weed density and dry matter of weeds were recorded with one-hand weeding at 20 DAS fb a combination of Sulfosulfuron at 25 g a.i. and Metsulfuron methyl at 6 g a.i. Maximum weed control efficiency and the lowest weed index were observed with the one-hand weeding at 20 DAS fb a combination of Sulfosulfuron at 25 g a.i. and Metsulfuron methyl at 6 g a.i. Therefore, wheat sown on 25th October, coupled with one-hand weeding at 20 DAS fb a combination of Sulfosulfuron at 25 g a.i. and Metsulfuron methyl at 6 g a.i., proved lowering the wed density and better weed control efficiency.