A research experiment was conducted during Rabi
2017-18 and 2018-19 at Kanpur to study the effect of irrigation, pre and post-emergence herbicides on Chenopodium album
under split-plot design with four replication having four irrigation schedule and eight factors of weed management. Results revealed that application of two irrigations at CRI and active tillering stage (I1
) significantly reduces the density of C. album
and their fresh and dry weight with highest weed control efficiency (WCE) irrigation at CRI+ jointing+ booting+ flowering+ milking stage (I4
) and irrigation at CRI + active tillering + booting + flowering stage (I3
) and it was statistically at par with irrigation at CRI + jointing + booting (I2
). Among weed management practices, significantly the lowest density, fresh and dry weight of C. album
and the highest WCE was recorded with the post-emergence application of broadway (carfentrazone ethyl 20% + sulfosulfuron 25%WG) @ 100 g a.i.
at 35 DAS as compared to other treatments. None of the weed management treatments as effective as hand at 20 and 40 DAS.