Morpho-physiological and yield attributes of boro rice varieties as influenced by different nitrogen sources

Authors

  • Parvin Akter Bithy Department of Agricultural Botany, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

DOI:

https://doi.org/10.3329/ralf.v10i2.68776

Keywords:

Spikelet sterility, Tiller, Grain yield, Nitrogen sources

Abstract

The present study was carried out at the Research Field of Sher-e-Bangla Agricultural University (SAU), Dhaka during Boro season, 2021-2022 to discover the best nitrogen source for enhancing Boro rice grain production. The experiment consisted of two factors: A) Three varieties: BRRI dhan29 (V1), BRRI dhan58 (V2), and Heera (V3). B) Four nitrogen sources: no nitrogen (T1), BRRI-recommended prilled urea (T2), recommended dose of mixed NPK (T3), and BARC-recommended USG (T4). The experiment was laid out in split plot design with three replications where main plot was for nitrogen source and subplot was for variety. USG treatment resulted in the highest grain production (8.6 t/ha) and the lowest percentage of spikelet sterility of any nitrogen source tested. Except for harvest index, all of the examined characteristics differed considerably between types. This is mostly due to BRRI dhan29 having the maximum number of full grains (98.8/panicale) and a significantly lower degree of spikelet sterility (7.3%). Among the interaction effects, the combination of the USG application with BRRI dhan29 showed the greatest performance in terms of delivering the maximum grain production (9.3 t/ha) by significantly reducing spikelet sterility.

Res. Agric. Livest. Fish. Vol. 10, No. 2, August 2023: 175-182

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Published

2023-09-18

How to Cite

Parvin Akter Bithy. (2023). Morpho-physiological and yield attributes of boro rice varieties as influenced by different nitrogen sources. Research in Agriculture Livestock and Fisheries, 10(2), 175–182. https://doi.org/10.3329/ralf.v10i2.68776

Issue

Vol. 10 No. 2 (2023)

Section

Agriculture

License

Copyright (c) 2023 Parvin Akter Bithy

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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