Improvement of Saemangeum Dredged Soils Using Coffee Sludge for Vegetation Soil

Table 7

Result of the analysis of chemical and physical properties of samples after the field test.

Classification	pH	Organism; (mg/kg)	Available phosphate; (mg/kg)	Salt concentration; (%)	Electric; conductivity; (ds/m)	Total nitrogen
Saemangeum field sample	8.37	0.789	14.390	0.034	0.537	235.82
Untreated	7.37	0.277	11.328	0.040	0.633	71.26
Sawdust fertilizer 4%	7.23	5.680	14.161	0.148	2.314	350.48
Sawdust fertilizer 4% + Coffee sludge 6%	6.93	22.213	16.976	0.091	1.424	1518.51
Arboreal growth condition	5.5–6.5	3.00 more	100 more	0.05 less	0.4 less	200 more