Author(s):

Abhinandan Singh and IB Pandey

Abstract: A field experiment was conducted during kharif seasons of 2017 and 2018 at research farm of TCA, Dholi, Muzzafarpur a campus of Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar to evaluate the effect of three different establishment methods viz. puddled transplanting, unpuddled transplanting and dry direct seeded rice with three nutrient levels viz. 75% RDF (recommended dose of fertilizer), 100% RDF and 125% RDF and four weed management practices viz. weedy check, hand weeding twice (20 and 40 DAS/T), bispyribac sodium (20 g ai/ha) + pyrozosulfuron (20 g ai/ha), and brown manuring on yield of hybrid rice. Amongst crop establishment methods, puddled transplanting produced maximum grain yield, straw yield, harvest index and grain: straw ratio which was found significantly superior over other method of sowing. Application of 125% RDF recorded higher grain yield, straw yield, harvest index and grain: straw ratio but was found at par with 100% RDF and the both produced significantly higher yield over 75% RDF during both years. The weed management practices significantly influenced the grain yield, straw yield, harvest index and grain: straw ratio of rice during both the years. The maximum yield was recorded under hand weeding twice but was found at par with combined application of bispyribac-sodium + pyrazosulfuron and both had significantly higher than the application of brown manuring. The minimum grain yield, straw yield, harvest index and grain: straw ratio was recorded under weedy check which was significantly lower than weed management practices.

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