EFFECT OF NITROGEN LEVELS ON THE YIELD AND OTHER AGRONOMIC CHARACTERS OF LOCAL TRANSPLANTED AMAN RICE IN KHULNA

Mahtalat  Ahmed; Dilruba  Jahan; Md. Yasin  Ali

doi:10.53808/KUS.2010.10.1and2.0911-L

Authors

Mahtalat Ahmed Agrotechnology Discipline, Khulna University, Khulna 9208, Bangladesh
Dilruba Jahan Agrotechnology Discipline, Khulna University, Khulna 9208, Bangladesh
Md. Yasin Ali Agrotechnology Discipline, Khulna University, Khulna 9208, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2010.10.1and2.0911-L

Keywords:

Rice, local variety, nitrogen

Abstract

An investigation was carried out during aman season, 2005 at the Field Laboratory of Agrotechnology Discipline, Khulna University, Khulna. Local aman rice variety Jatai was tested against 4 different levels of nitrogen viz. 0, 20, 40 and 60 kg N ha-1. The experimental results revealed that nitrogen levels significantly affected plant height (cm), number of tillers hill-1, weight of 1000-grain (g), grain yield (tha-1), biological yield (t ha-1) and harvest index (%). Higher N dose (60 kg ha-1) produced higher plant height (127.57 cm) and panicle length (20.43 cm). The highest number of tillers hill-1 (13), effective tillers hill-1(11.70), filled grains panicle-1 (61.25), weight of 1000 grain (30.25 g), grain yield (4.17 t ha-1), biological yield (12.46 t ha-1) and harvest index (33.48 %) were produced with 40 kg N ha-1. The lowest grain yield and yield contributing characters were produced by control treatment (0 kg N ha-1).

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References

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