description of sorption curves

• Published in: European journal of soil science Vol. 59; no. 5; pp. 900 - 910
• Main Author: Barrow, N.J
• Format: Journal Article
• Language: English
• Published: Oxford, UK Oxford, UK : Blackwell Publishing Ltd 01.10.2008; Blackwell Publishing Ltd; Blackwell Science
• Subjects: Agronomy. Soil science and plant productions; Biological and medical sciences; buffering capacity; desorption; Earth sciences; Earth, ocean, space; equations; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; ions; mixing; nutrient solutions; nutrients; phosphates; soil; soil nutrients; Soil science; soil solution; Soils; sorption isotherms; Surficial geology; Soil science; Earth science

In this paper I discuss sorption curves: choosing them, fitting them, and interpreting them. The Langmuir equation is not appropriate for reaction of ions with soil. Despite some disadvantages, the Freundlich equation is the best simple equation. Fitting sorption equations causes statistical difficu...