Soil C/N ratio is a key indicator of soil quality and provides information on the capacity of the soil to store and recycle energy and nutrients (Gregorich et al., 1994).
Generally, soils with a high C/N ratio may be characterized by rapid immobilization of N and soils with a low C/N ratio by slower N immobilization (Bengtsson et al.,2003).
In this study the C/N ratios of all treatments were in the range of 11.36–11.73 (Table 3), which is below the typical threshold (20) for N immobilization/mineralization, so net N mineralization would be expected (Tate, 1995; Sun et al., 2014).
Soil C/N ratio is a key indicator of soil quality and provides information on the capacity of the soil to store and recycle energy and nutrients (Gregorich et al., 1994). Generally, soils with a high C/N ratio may be characterized by rapid immobilization of N and soils with a low C/N ratio by slower N immobilization (Bengtsson et al.,2003). In this study the C/N ratios of all treatments were in the range of 11.36–11.73 (Table 3), which is below the typical threshold (20) for N immobilization/mineralization, so net N mineralization would be expected (Tate, 1995; Sun et al., 2014).
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