Improvement of Saemangeum Dredged Soils Using Coffee Sludge for Vegetation Soil

Table 2

Physical and chemical characteristics of the Saemangeum dredged soils and coffee sludge.

Classification	pH	Organic content; (%)	Available phosphate; (mg/kg)	Salt concentration; (%)	Electric conductivity; (dS/m)
Sample A	7.55	1.220	12.732	0.070	1.099
Sample B	7.28	0.468	10.171	0.747	11.669
Coffee sludge	6.59	37.007	246.597	0.711	11.102
Arboreal growth condition	5.5–6.5	3.00 more	100 more	0.05 less	0.4 less