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Year : 2018, Volume : 50, Issue : 3
First page : ( 290) Last page : ( 293)
Print ISSN : 0253-8040. Online ISSN : 0974-8164. Published online : 2018  01.
Article DOI : 10.5958/0974-8164.2018.00062.X

Effects of nitrogen levels and weed management in direct-seeded rice

Singh Anurag Kumar*,1, Singh M.K.1, Kumari Sneha1

1Department of Agronomy, Institute of Agricultural Sciences, BHU, Varanasi, Utter Pradesh, 221 005

*Email: anuragrau@gmail.com

Received:  12  May,  2018; :  26  June,  2018; Accepted:  6  August,  2018.

Abstract

A field experiment was conducted at Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi to study effect of nitrogen level and weed management in direct-seeded rice. Treatment consisted of 12 treatment combinations which was laid out in the split-plot design having nitrogen levels (100, 120, 140 and 160 kg N/ha) in main plot and three weed management practices, viz. weedy, two hand weeding and bispyribac-sodium 25g/ha fb Cono-weeding in sub-plots replicated thrice. Two hand weeding recorded significantly lower weed biomass and density and better performance of crop growth and yield attributes and yield followed by bispyribac-Na 25 g/ha fb cono-weeding. In case of nitrogen application of 160 kg N/ha showed better performance of growth, yield attributes and yield as compared to other nitrogen treatments. It was observed that application of nitrogen 160 kg/ha and two hand weeding was found best treatment for higher grain yield and net returns.

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Keywords

Direct seeded rice, Nitrogen levels, Weed management.

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