Yield and Nitrogen Use Efficiency of Locally Improved Rice Varieties in Rice Based Tidal Flooded Ecosystem of Bangladesh

Authors

  • MAA Mamun Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706
  • MM Haque Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706
  • QA Khaliq Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706
  • MA Karim Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706
  • AJMS Karim Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706
  • AJ Mridha Bangladesh Rice Research Institute, Gazipur 1701
  • MA Saleque Bangladesh Rice Research Institute, Gazipur 1701

DOI:

https://doi.org/10.3329/baj.v19i2.31851

Keywords:

Grain yield, nitrogen uptake, nitrogen harvest index, rice cultivars, tidal ecosystem

Abstract

An on farm field experiment was conducted to evaluate locally improved aman rice varieties in terms of nitrogen use efficiency and grain yield in southern region of Bangladesh. The treatments were: i. deep placement of urea (UDP) before panicle initiation stage and ii. farmers practice (FP/control). The locally popular rice varieties were used as planting materials. Higher panicles m-2 and grains panicle-1 was obtained from UDP application compared to FP. Nitrogen fertilization increases grain and straw nitrogen content significantly. Application of urea before panicle initiation stage gave considerable higher grain yield in all cultivated varieties. Cultivated aman varieties produced 2.0 to 2.5 t ha-1 grain without application of N fertilizer. But, cultivated local variety Razashail, Kutiagoni, Sadachikon, Sadapajam, Lalmota and Sadamota gave 3.0 to 3.5 t ha-1 grain in tidal prone areas with UDP. Hence, application of urea gave yield advantage by 0.5 to 1.0 t ha-1. The highest internal, agronomic, recovery and physiological efficiency; nitrogen harvest and grain yield efficiency index was obtained from Kutiagoni, Lalpayka, Sadachikon, Sadapajam, Moulata and Lalmota. Based on the yield and nitrogen fertilizer use efficiency, it could be concluded that UDP before panicle initiation stage is an effective option of urea application for rice cultivation in tidal prone areas.

Bangladesh Agron. J. 2016 19(2): 39-49

Downloads

Download data is not yet available.
Abstract
19
PDF
33

Author Biography

MAA Mamun, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706



Downloads

Published

2017-03-10

How to Cite

Mamun, M., Haque, M., Khaliq, Q., Karim, M., Karim, A., Mridha, A., & Saleque, M. (2017). Yield and Nitrogen Use Efficiency of Locally Improved Rice Varieties in Rice Based Tidal Flooded Ecosystem of Bangladesh. Bangladesh Agronomy Journal, 19(2), 39–49. https://doi.org/10.3329/baj.v19i2.31851

Issue

Vol. 19 No. 2 (2016)

Section

Original Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).