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Fluorine Content of Soil from Morrow Plots Over a Period of 67 Years
Author(s) -
Omueti J. A. I.,
Jones Robert L.
Publication year - 1977
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1977.03615995004100050045x
Subject(s) - soil water , phosphorus , phosphate , human fertilization , zoology , period (music) , environmental science , soil science , mineralogy , chemistry , agronomy , biology , physics , organic chemistry , acoustics
Between 1904 and 1971, F content in Morrow Plot soils varied from a mean of 275 to 381 mg/kg. The cause of variation in F content was shown to be related to phosphorus fertilization practices. Much of the F added to the soils in the form of rock phosphate between 1904 and 1924 was retained by 1955. Average loss of F from the soil per annum between 1924 and 1944 was calculated to be about 2.5‐mg F/kg. Recent samplings contain large, unaccounted‐for variability.