(Eilers et al., 2012) including the availability of carbon (C) and
nutrients, pH value, and salinity. In contrast to compost, the
improvement in soil properties by inorganic nitrogen was less
effective after three years of treatment, despite incorporating the
same amount of total nitrogen. Previous studies showed that
bacterial community shifts occurred after long-term application of
inorganic nitrogen fertilizer, while they did not occur in the short
term (Dolfing et al., 2004; Marschner et al., 2003). However, for
both compost- and inorganic nitrogen-treated soils, the relative
abundances of Cyanobacteria and Nitrospirae were much lower
than the control.