Desorption of soil phosphate by anion‐exchange resin
作者:
R. C. Dalal,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1974)
卷期:
Volume 5,
issue 6
页码: 531-538
ISSN:0010-3624
年代: 1974
DOI:10.1080/00103627409366531
出版商: Taylor & Francis Group
关键词: desorption;diffusion;rate factor
数据来源: Taylor
摘要:
Kinetics of phosphate desorption from twenty soils by anion‐exchange resin were not satisfactorily explained by either film diffusion (or ion exchange mechanism) mechanism or particle diffusion mechanism. Eut the phosphate desorption process was adequately explained by a two‐constant rate equation. The two constants, the coefficient term (i.e., rate factor) and the constant term (i.e., solution P initially) were significantly correlated with amorphous Al; rate factor increased and solution P decreased with the increase in amorphous Al among the soils. Thus, influence of amorphous Al in P availability from soils must be considered.
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