TY - JOUR AU - Hossain, MA AU - Shimu, SA AU - Sarker, MSA AU - Ahsan, ME AU - Banu, MR PY - 2021/07/11 Y2 - 2024/03/29 TI - Biomass Growth and Composition of Azolla (Azolla Pinnata R. BR.) Supplemented With Inorganic Phosphorus in Outdoor Culture JF - SAARC Journal of Agriculture JA - SAARC J Agric VL - 19 IS - 1 SE - Articles DO - 10.3329/sja.v19i1.54788 UR - https://www.banglajol.info/index.php/SJA/article/view/54788 SP - 177-184 AB - <p>An experiment was conducted to know the effect of supplemental phosphorus on biomass growth and composition of a floating aquatic fern, <em>Azolla pinnata, </em>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 <em>A. pinnata </em>culture. It was observed that fresh and dry weights of <em>A. pinnata </em>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 <em>A. pinnata </em>was proportional to the phosphorus supplementation in the culture medium. Supplementation of phosphorus also improved the protein and lipid contents of <em>A. pinnata</em>. It was concluded that supplementation of 10 ppm phosphorus to water used for culturing <em>A. pinnata </em>is optimum under outdoor conditions.</p><p><em>SAARC J. Agric., 19(1): 177-184 (2021)</em></p> ER -