Phosphorus transformation in tejgaon clay soil, east pakistan, under different cultural practices

Abstract
The distribution of forms of phosphorus in an acid ferruginous soil after application of superphosphate is studied. Of the P2O5 added as superphosphate, 88% was retained by the soil 3 days after application. Most of the superphosphate added was converted into sesquioxide‐bound P2O5 and adsorbed P2O5. Liming the soil increased the Truog's sulphuric acid‐soluble P2O5 by about 10%. Adsorbed P2O5 (hydroxyl‐replaceable P2O5) rather than Truog's soluble P2O5 appeared to be utilised by the jute crop.
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