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ORYZA- An International Journal on Rice
Year : 2014, Volume : 51, Issue : 2
First page : ( 136) Last page : ( 142)
Print ISSN : 0474-7615. Online ISSN : 2249-5266.

Response of rice to establishment methods and nutrient management practices in medium land

Mohanty TR1,*, Maity SK2, Roul PK3

1Regional Research Technology Transfer Stations, Judia Farm, Keonjhar-758002, Odisha

2Visva-Bharati University, Sriniketan, West Bengal - 731 236

3Directorate of Research, OUAT, Bhubaneswar - 751003, Odisha

*Email: tusharranjan70@gmail.com

Online published on 5 February, 2015.

Abstract

Studies were conducted during wet seasons, 2009 and 2010 to assess the growth and productivity of wet season rice under three crop establishment techniques viz. system of rice intensification (SRI), sowing of sprouted seeds by a drum seeder (DS) and conventional transplanting (CT) under three nutrient management practices viz. recommended dose of fertilizer (RDF) (80:40:40 N: P2O5: K2O kg ha−1), integrated nutrient management (INM) i.e. 50% R.D.F. + 50% R.D.F. through organic sources (based on nitrogen requirement) and organic management (OM) i.e. 100% of R.D.F. through organic sources (based on nitrogen requirement). The system of rice intensification increased grain yield (6.65 t ha−1) by 18.0 and 25.8% over CT and DS, respectively; whereas, the latter two treatments remained at par. INM registered the highest grain yield of 6.43 t ha−1 which was higher by 11.9 and 19.2% over RDF and OM, respectively. SRI grown under INM recorded the highest productivity of 7.30 t ha−1. SRI fetched the highest gross return ( 77925 ha−1), net return ( 43033 ha−1) and return  −1 (2.28). The crop with INM practices realized the highest gross return ( 75586 ha−1) and net return of ( 40570 ha−1); but the net return was at par with RDF ( 40251 ha−1). The return  −1 (2.45) was the highest with R.D.F. followed by INM (2.16). Maximum N, P and K uptake was observed with SRI method of establishment and integrated nutrient management practices.

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Keywords

Crop establishment, SRI, drum seeding, conventional transplanting, nutrient management.

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