Author(s): DP Singh, Poonam Singh, RA Singh, Mahendra Singh, N Parkash, PK Singh, SKS Rajpoot and Raj Bahadur

Abstract: A field experiment was conducted on sandy loam soil of conducted during the kharif season of 2020 and 2021 at A.N.D.U.A.T, Crop Research station, Bahraich to evaluate the performance of weed-control methods on weed dynamics and productivity of maize. The experiment was laid out in randomized block design with 9 treatments T₁-Weedy check, T₂-Weed free check, T₃-Atrazine 1000 g/ha (PE) fb Hand weeding at 25 DAS, T₄-Atrazine 750 g/ha (PE) fb Topramezone 25.2 g/ha at 25 DAS, T₅-Atrazine 750 g/ha (PE) fb Tembotrione 120 g/ha at 25 DAS, T₆-Atrazine 1000 g/ha (PE) fb Topramezone 25.2 g/ha at 25 DAS, T₇-Atrazine 1000 g/ha (PE) fb Tembotrione 120 g/ha at 25 DAS, T₈-Topramezone 25.2 g/ha + Atrazine 750 g/ha at 15 DAS and T₉ Tembotrione 120 g/ha + Atrazine 750 g/ha at 15 DAS in three replication. The Treatment of T₅-Atrazine 750 g/ha (PE) fb Tembotrione 120 g/ha at 25 DAS, 6278 kg/ha and increase % was 133.12 followed by T₄-Atrazine 750 g/ha (PE) fb Topramezone 25.2 g/ha at 25 DAS, 6178 kg/ha & increase % 129.40. Application of T₅-Atrazine 750 g/ha (PE) fb Tembotrione 120 g/ha at 25 DAS recorded maximum B:C ratio (3.19) and Rs.95,567/ha, significantly higher net return compared to weedy check (0.80) Rs. 23867/ha than rest of the treatments.

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