Soil Phosphorus in South Dakota: I. Inorganic Phosphorus Fractions of Some Soil Series1
- F. C. Westin and
- G. J. Buntley2
The inorganic soil phosphorus of the upper three horizons of 16 profiles was fractionated. The soils were selected to provide for a comparison of four kinds of parent materials and two great soil groups.
The data show that, in general, the four glacial parent materials had similar proportional amounts of the inorganic P fractions. Climate, as expressed through great soil group, did affect the proportional amounts of two of these fractions, however. Among Chernozem soils the Fe-P fraction makes up a proportionally larger amount, and the Ca-P fraction a proportionally smaller amount, than they each do in Chestnut soils. Neither parent material nor climate alters the proportional amount of Al-P present in these soil series.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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