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Interaction of Limestone Particle Size and Phosphorus on the Control of Soil Acidity
Author(s) -
Barrows Harold L.,
Taylor Alan W.,
Simpson Elmer C.
Publication year - 1968
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/sssaj1968.03615995003200010016x
Subject(s) - calcite , phosphorus , particle size , phosphate , chemistry , mineralogy , particle (ecology) , hydrogen ion , ion , geology , organic chemistry , oceanography
Various size fractions of limestone and calcite were equilibrated in a Leon fine sand previously treated with varying rates of phosphorus. The efficiency of 42‐ to 48‐mesh liming material was reduced 1.1, 1.6, and 5.8%, respectively, by the addition of 25, 50, and 150 ppm P. The same levels of P reduced the efficiency of 12‐ to 14‐mesh material 2.2, 3.6, and 8.5%. Material finer than 80‐mesh was not affected. The reduced efficiencies were attributed to the formation of surface coatings of phosphatic material. The susceptibility of a given soil to coat liming material may be assessed by measurements of hydrogen ion (H + ) and phosphate (H 2 PO 4 ‐ ) potentials.