Author(s):

Sagar Dhage S and VK Srivastava

Abstract: The experiment was laid out in a split-plot design with three replications and comprises two factors. Four weed management practices viz., weed-free up to 30 DAS (W₁), weed-free up to 45 DAS (W₂), weed-free up to 60 DAS (W₃) and unweeded control (W₄) in main plot and six rice varieties viz., ‘DRR Dhan-44’ (V₁), ‘Sahabhagidhan’ (V₂), ‘DRR Dhan-41’ (V₃), ‘DRR Dhan-42’ (V₄), ‘DRR Dhan-46’ (V₅) and ‘HUR-3022’ (V₆) in sub plots. The results showed that among weed management practices, weed-free up to 60 DAS (W₃) which was at par with weed-free up to 45 DAS (W₂) significantly enhanced growth attributes of rice, yield attributes, yield [grain and straw yield] and nutrient content and uptake as compared to weedy throughout the season (W₄). And among cultivars significantly higher under DRR Dhan-44 (V₁) which was at par with HUR-3022 (V₆) and was minimum in DRR Dhan-46 (V₅). Among different treatment combinations the minimum cost of cultivation and higher B:C ratio obtained under W₂V₁ (weed free up to 45 DAS + DRR Dhan-44) over others.

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