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Phosphate Migration in Limestoned and Dolomited Soils as Registered by Plant Response
Author(s) -
MacIntire W. H.,
Winterberg S. H.,
Clements L. B.,
Sterges A. J.
Publication year - 1948
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/sssaj1948.036159950012000c0083x
Subject(s) - chemist , citation , library science , chemistry , operations research , computer science , engineering , organic chemistry
THE influence that cation and fluoric combinations of phosphorus exert upon its degree of "availability" before incorporation into.soils and upon its migration after incorporation has been under study at the Tennessee Station during the past 15 years. Incorporations were made as HaPCU, as the primary, secondary, and tertiary phosphates of calcium, as monoamriionium and diammonium phosphates, as calcium metaphosphate, as fused tricalcium phosphate, as magnesium phosphate, and as rock phosphate. An objective of one zo-year experiment was to ascertain whether the addition of calcium fluoride affected alike the availability of the several calcium phosphates in limestoned and dolomited soils. The outgo of fluorine from the phosphated soils of that experiment and direct determinations of fluorine residues have been reported (2, 3). The present contribution gives the plant responses and phosphorus uptake registered by cultures of soils that had been exposed 12 years in a lysimeter experiment that was inaugurated in 1930 to study "the migration, fixation, availability, and nature of the combinations that ensue when P2OB is supplied to the soil by acid phosphate, with and without supplements of limestone and dolomite."