TY - JOUR AU - Hoque, MF AU - Islam, MS AU - Islam, MR AU - Rashid, MH AU - Saleque, MA PY - 2016/06/09 Y2 - 2024/03/29 TI - Phosphorus Fractionations in Ganges Tidal Floodplain Soil of Bangladesh JF - Bangladesh Rice Journal JA - Bangladesh Rice J. VL - 19 IS - 2 SE - Articles DO - 10.3329/brj.v19i2.28165 UR - https://www.banglajol.info/index.php/BRJ/article/view/28165 SP - 57-63 AB - <p class="Default"><strong>CORRECTION:</strong> Due to a number of formatting and layout issues, the PDF of this paper was replaced on 10th October 2016. The page numbers of this article have changed from 55-61 to 57-63.</p><p>The present investigation aimed to evaluate different fractions of P of Ganges tidal floodplain soils of Bangladesh in terms of plant availability in the selected soil. The samples were analyzed for solution P, labile pool, alkali-extracted inorganic pool, organic pool, acidic pool and residual P.The soil solution P in the tested soils ranged from 0.03 to 0.11 mg L<sup>–1</sup>. The concentration of 0.5M NaHCO<sub>3</sub> extracted P had a range of 8-34 mg kg<sup>–1</sup>. Dilute NaOH extracted inorganic P had a range of 25-59 mg kg<sup>–1</sup>. NaOH extracted organic P ranged from 334 to 542 mg kg<sup>–1</sup> and acid extracted P represented from 140 to 443 mg kg<sup>–1</sup>, respectively. Residual P of the tested soils showed a concentration of 104-262 mg kg<sup>–1</sup>. On average of the 12 soils, the relative concentration of solution P was 0.01%, NaHCO<sub>3</sub> P was 3.2%, NaOH-Pi was 6.8%, NaOH-Po was 44.6%, acid pool was 27.3% and residual fraction was 18.1%. Different P pools showed strong correlation either with sand, silt, clay, electrical conductivity, pH(H<sub>2</sub>O), pH (KCl), organic carbon or extractable Fe content. The tested Ganges tidal floodplain soils demonstrated wide variation in the relative proportion of different P pools.</p><p>Bangladesh Rice j. 2015, 19(2): 57-63</p> ER -