Predicting Mineral N Release during Decomposition of Organic Wastes in Soil by Use of the SOILN_NO Model

Table 1

Total C, total N and C : N ratio in the soil and the organic matters (g kg⁻¹) DM) used in the laboratory incubation experiment.

Material	Total C	Total N	C : N
Soil.	35.81	3.58	10.00
SS1	347.81	27.47	12.66
SS2	267.40	22.77	11.74
OW3	517.18	31.35	16.50
OW4	321.51	22.91	14.03
SS5	272.90	9.15	29.83
MF	425.55	93.11	4.57
CF	471.21	29.82	15.80

SS1 = raw, primary (before stabilising or sanitary treatments) sewage sludge.
SS2 = stabilised, sanitary treated and digested (anaerobic) sewage sludge.
OW3 = primary source sorted (not composted) organic waste.
OW4 = easily composted (aerobic) organic waste.
SS5 = rotator treated (composted and mixed with bark and chips) sewage sludge compost.
MF = meat flour.
CF = cow fodder pellets.