Synthesis of Organo-Metallic Phosphates and Their Role in Plant Nutrition

Stable organo-mineral phosphates of varying solubility were prepared by direct interaction ofhumic and fulvic-iron complexes with phosphorus. Study of kinetics of isotopic exchange of phosphorus in these compounds suggested that these compounds are fairly stable and possess varying degrees of solubility and mobility. Studies on the possibility of their uptake by plants by using radio-active indicators suggested that phosphorus in these compounds is absorbed as intensively as in the ionic form.