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Thesis (M.S.)--University of Nebraska--Lincoln, 1951. Department of Agronomy.


Copyright 1951, the author. Used by permission.


Profile samples of Azonal and Prairie soils in eastern Nebraska were taken and analyzed in the laboratory. The soil profiles studied in this investigation were four members of the Cass series, representing both high and low levels of productivity, three Marshall, two Sharpsburg, and one intergrade of the Marshall-Sharpsburg series. The following determinations were made on each of the soil samples: (1) mechanical analysis; (2) the pH by paste and neutral salt techniques; (3) organic matter content; (4) total nitrogen content; (5) cation exchange capacity; (6) total phosphorus content; (7) acid soluble phosphorus content; (8) buffer soluble phosphorus contents at pH 3.0, paste pH of the soil, and at pH 9.0.

The soil profiles used in this investigation were taken in Lancaster, Merrick, Otoe, Richardson and Saunders counties and were considered to be representative of their respective soil series.

Advisor: Leon Chesnin