1. organic compound of the soil humus,
2. inorganic compounds in which the P is combined with Ca, Mg, Fe, Al and with clay minerals,
3. organic and inorganic P compounds associated with the cells of living matter. Microorganisms are involved in transformations of phosphorus between organic and mineral forms.
|Inositol phosphates||Phospholipids||Nucleic acids||Phosphoproteins||Metabolic phosphates|