Biomass Growth and Composition of Azolla (Azolla Pinnata R. BR.) Supplemented With Inorganic Phosphorus in Outdoor Culture

Authors

  • MA Hossain Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
  • SA Shimu Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
  • MSA Sarker School of Agriculture and Rural Development, Bangladesh Open University Gazipur, Bangladesh
  • ME Ahsan Department of Fisheries Management, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
  • MR Banu Department of Fisheries Management Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh

DOI:

https://doi.org/10.3329/sja.v19i1.54788

Keywords:

Azolla, Nutrient, Growth, Phosphorus

Abstract

An experiment was conducted to know the effect of supplemental phosphorus on biomass growth and composition of a floating aquatic fern, Azolla pinnata, cultured in a pit system for 21 days with 4 levels of phosphorus (0, 5, 10, and 15 ppm) supplementation. Water quality parameters of the pits were within a suitable range for A. pinnata culture. It was observed that fresh and dry weights of A. pinnata increased with phosphorus supplementation up to 10 ppm. Doubling time was the fastest when the culture medium was supplemented with 10 ppm of phosphorus. Phosphorus content of A. pinnata was proportional to the phosphorus supplementation in the culture medium. Supplementation of phosphorus also improved the protein and lipid contents of A. pinnata. It was concluded that supplementation of 10 ppm phosphorus to water used for culturing A. pinnata is optimum under outdoor conditions.

SAARC J. Agric., 19(1): 177-184 (2021)

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Published

2021-07-11

How to Cite

Hossain, M., Shimu, S., Sarker, M. ., Ahsan, M., & Banu, M. (2021). Biomass Growth and Composition of Azolla (Azolla Pinnata R. BR.) Supplemented With Inorganic Phosphorus in Outdoor Culture. SAARC Journal of Agriculture, 19(1), 177–184. https://doi.org/10.3329/sja.v19i1.54788

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