The Effect of Different Nitrogen Levels and Enrichment CO<sub>2</sub> on the Nutrient Contents of Rice Cultivars

Authors

  • MA Razzaque Regional Agricultural Research Station, Bangladesh Agricultural Research Station, Rahmatpur, Barisal
  • MM Haque Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur
  • QA Khaliq Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur
  • ARM Solaiman Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur

DOI:

https://doi.org/10.3329/bjsir.v44i2.3680

Keywords:

Rice cultivars, Enrichment CO2, C, N, Zn, Mg

Abstract

An experiment was conducted during the July -December of 2003 to determine the nutrient compositions of rice under CO2 enrichment of different levels of nitrogen supply. Rice plants were grown from seedlings to maturity inside open top chamber under elevated CO2 (570 ±50) ppm, ambient CO2 (~360ppm) and open field condition. Leaves and root were analyzed for C, N, Zn and Mg. C content was higher in the all plant parts of rice grown at elevated CO2 compare than ambient CO2 and field grown rice. Increased N supplies also increase C content of the plants. Nitrogen concentration was reduced in elevated CO2 compare than other grown condition. Modern variety (BRRIdhan 39) contained higher C than local cultivars (Khaskani and Shakkorkhora). Nitrogen concentration was decreased under elevated CO2 compare to other treatments.

Key words : Rice cultivars, Enrichment CO2, C, N, Zn, Mg

DOI: 10.3329/bjsir.v44i2.3680

Bangladesh J. Sci. Ind. Res. 44(2), 241-246, 2009   

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How to Cite

Razzaque, M., Haque, M., Khaliq, Q., & Solaiman, A. (2009). The Effect of Different Nitrogen Levels and Enrichment CO<sub>2</sub> on the Nutrient Contents of Rice Cultivars. Bangladesh Journal of Scientific and Industrial Research, 44(2), 241–246. https://doi.org/10.3329/bjsir.v44i2.3680

Issue

Vol. 44 No. 2 (2009)

Section

Articles

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