Inorganic and organic soil

The fate of pesticides and organic pollutants in natural waters and in soils is strongly dependent on their sorptive behavior (Karickhoff, 1980). Sorption affects not only physical transport of these materials but also their degradation. It is also important to note that the chemical reactivity of pollutants in a sorbed state may be different from their behavior in aqueous solution. Karickhoff (1980) notes that sorbents such as inorganic and organic soil constituents may affect solution-phase processes by changing the solution-phase pollutant concentration or by affecting the release of pollutants into the solution phase. 

Recently, Bolan and Duraisamy (2003) have shown some case studies on the role of inorganic and organic soil amendments on immobilization and phytoavailability of trace elements. They showed evidence that lime is effective... 

Bolan, N. S., and Duraisamy V. P. (2003). Role of inorganic and organic soil amendments on immobilisation and phytoavailability of heavy metals a review involving specific case studies. Aust. J. Soil Res. 41, 533-555. 

A number of homogeneous models have been proposed to interpret kinetics of ionic reactions on inorganic and organic soil constituents. These include zero-order equations (with the rate of release of the ionic species independent of the amount left in the exchanger material) (Keeney, 1973 Reddy et al., 1978), classical first-order (Sawhney, 1966 Sparks and Jardine, 1984) and multiple first-order equations (Griffin and Jurinak, 1974 . lardine and Sparks, 1984 Carski and Sparks, 1987) (the multiple terms are attributed... 

Hedley, M.J., Stewart, j.W.B. and Chauhan, B.S. (1982) Changes in inorganic and organic soil phosphorus fractions induced by cultivation practices and by laboratory incubations. Soil Science Society of America Journal 46, 970-975. 

Fehmann, J., Ctinther, D., da Mota, M.S., de Almeida, M.P., Zech, W. and Kaiser, K. (2001c) Inorganic and organic soil phosphorus and sulfur pools in an Amazonian multistrata agroforestry system. Agroforestry Systems 53, 113-124. 

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