The sulfur cycle. As with nitrogen, organic sulfur, contained in the soil and in crop residue, is mineralized by microbes into the inorganic form that plants can use. But other microbes are also ...

Minnesota research shows an annual rate of 25 lb. of sulfur is adequate for corn production on sandy soils, while fields with more organic matter need less (10 lb. to 15 lb. per acre). The ...

Sulfate-reducing bacteria break down a large proportion of the organic carbon in the oxygen-free zones of Earth, and in the seabed in particular. Among these important microbes, the ...