Anthropogenic changes to the global N cycle are important in part because added N alters
the composition, productivity, and other properties of many natural ecosystems substantially …

Sulfur (S) deficiency is becoming more common in agro-ecosystems worldwide due to
factors such as agronomic practices, high biomass production, reduced sulfur emissions …

Research pertaining to the organic fraction of soils can be traced back in excess of 200
years. Achard (1786) isolated a dark amorphous precipitate upon acidification of an alkaline …

The use of elemental sulfur (S 0) to alleviate widespread S deficiencies in agricultural soils
is limited by the unpredictability of its oxidation to plant available sulfate. Here we review the …

Despite the essential role of sulfur for plant growth, it has historically received little attention
because of an ample supply from the atmosphere and commercial fertilizers. However …

The central role of soil chemistry in the ecosystem and other disciplines is becoming
increasingly important. For example the effects of the increased levels of atmospheric …

The productivity and health of agricultural systems depend greatly upon the functional
processes carried out by soil microorganisms and soil microbial communities. The …

Soil sulphur (S) exists in organic and inorganic forms. From a plant nutritional viewpoint
inorganic sulphate is the most important, since it is the form assimilated by plant roots …

The isotopic composition of SO 4 2-in bulk precipitation, canopy throughfall, seepage water
at three different soil depths, stream water, and groundwater was monitored in two forested …

Land use choices differentially affect soil physical and biological properties. Tillage choices
in particular affect soil erosion, the retention of soil organic matter, and the biological activity …