Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
Abstract
Phosphorus and sulfur, together with alkaline, alkaline earth and transitional metals are important nutrients and constituents of living matter. The sulfur cycle involves an atmospheric phase, but its main stages are due to terrestrial biota, through processes like sulfate reduction, sulfide oxidation, anoxygenic photosynthesis, etc. The cycles of phosphorus and metals lack significant atmospheric stages. The main biogeochemical processes involving soil microorganisms are those of solubilization and precipitation, that determine their general bioavailability.
Keywords:
Potassium, Phosphorus, Calcium, Sulfur, Sodium, Transitional metals.
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Authors:Bentham Science Books