Soil Organic Matter Management: The Roles of Residue Quality in C Sequestration and N Supply - Sustainable Management of Soil Organic Matter - page 107

shown), as variability among replicates was large. However, it tended to be
lower in TB soils than burnt soils from 0-20 mm at Mackay and Tully
(mean 0.14 µ gNg −1 day −1 in TB, and 0.32 µ gNg −1 day −1 in burnt soils).

Fig. 3.1.1. Representative data from the field experiments: (a) C : N ratio of free trash from
Harwood-Late; (b) dry matter of free and incorporated trash from Harwood-Early; (c) soil organic C
(0-50 mm) from Tully; (d) total soil N (0-50 mm) from Tully; (e) microbial biomass index (0-50 mm)
from Tully; and (f) C mineralization potential (0-50 mm) from Tully. Significant treatment
differences marked * (P< 0.05).