Properties of Soil Native and Ortho-and Pyrophosphate-Modified Ferro-Humic Complexes and Their Effect on Solubility and Toxicity of the Products of Exogenous Zn Binding

摘要

The properties of soil ferro-humic sorbent complexes proved to determine the degree of exogenous Zn binding and the toxicity of Zn-compounds for soil microbiota. The properties of ferro-humic complexes were profoundly altered under the action of phosphate anions as potential ligands. Distinct properties of ferro-humic complexes modified by ortho- and pyrophosphates were revealed.