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Fractionation of Phosphorus in Kansas Soils and Its Significance in Response of Wheat to Phosphate Fertilizers 1
Author(s) -
Bhangoo M. S.,
Smith F. W.
Publication year - 1957
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1957.00021962004900070004x
Subject(s) - phosphorus , soil water , fractionation , phosphate , chemistry , adsorption , environmental chemistry , agronomy , environmental science , soil science , chromatography , biology , organic chemistry
Synopsis Phosphorus of seven surface soils and corresponding subsoils was fractionated. Iron and aluminum phosphates accounted for more than half of the total P in surface material and about two‐thirds of that in subsoils. Organic P represented about one‐third of the total P in surface soils but only about one‐fifth in subsoils; “adsorbed” P and acid soluble P represented about 10% and 5%, respectively, of the total. Two distinctly different methods were used to measure “chemically available” phosphorus. Each method was satisfactory.