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A RELATIONSHIP BETWEEN PHOSPHORUS REQUIREMENT, THE IMMOBILIZATION OF ADDED PHOSPHATE, AND THE PHOSPHATE BUFFERING CAPACITY OF COLLIERY SHALES
Author(s) -
FITTER A. H.
Publication year - 1974
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1974.tb01101.x
Subject(s) - phosphate , phosphorus , environmental science , nutrient , chemistry , pulp and paper industry , environmental chemistry , biochemistry , engineering , organic chemistry
Summary Soluble phosphorus was allowed to age in contact with four colliery shales for up to 6 months. The ageing process apparently involved three stages–(i) a rapid initial drop controlled by pH; (ii) a steady‐state period; and (iii) an exponential decline whose rate was proportional to buffering capacity. Using this relation‐ship a model was derived to predict soil phosphorus requirement.