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Research Article Open access CC BY 4.0

Effect of Varying Level of Nitrogen and Spacing on the Yield of Boro Rice Cv. BRRI Dhan47

Nice Afroz, A.I. Mitu, Jesmin Zaman, Shakil Arvin Zomo, Md. Omar Kayess

Asian Journal of Agricultural and Horticultural Research · pp. 153–159 · Published 6 Jun 2024

10.9734/ajahr/2024/v11i2322

Abstract

An experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh, during the period from November 2008 to April 2009 to study the effect of nitrogen and spacing on the yield of Boro rice cv. BRRI dhan47. The experiment consisted of four levels of nitrogen, viz. 0, 80, 100, and 120 kg N ha-1, and four spacings, viz. 25 cm × 10 cm, 25 cm × 15 cm, 25 cm × 20 cm, and 25 cm × 25 cm. The experiment was laid out in a randomized, complete block design with three replications. The interaction between different levels of N and spacing significantly influenced most of the studied characters. The highest number of total tillers hill-1 (14.67), number of non-effective tillers hill-1 (4.80 sterile spikelets panicle-1 (20.97), spikelts panicle-1 (165.55), and straw yield (7.07 t ha-1) were obtained from the interaction of 120 kg N ha-1 with 25 cm × 25 cm spacing. The uppermost number of effective tillers hill-1 (11.67), grain yield (5.86 t ha-1), biological yield (12.62 t ha-1), and harvest index (46.42%) were obtained from the interaction of 100 kg N ha-1 with 25 cm × 15 cm. The control nitrogen with 25 cm × 10 cm spacing and 25 cm × 15 cm spacing gave the worst combined result in most of the cases. Overall, the treatment combination of 100 kg N ha-1 with 25 cm × 15 cm spacing gave the best desirable output, hence it should be recommended for field application.

Nitrogen spacing growth yield brri dhan47

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