Table 1.

Physical and chemical properties of the test soil.

pH		6.0
Available P (mg/kg)		153.6
Available K (mg/kg)		178.0
Nitrate N (mg/kg)		20.5
Total N (g/kg)		0.816
Total Cd (mg/kg)		0.16
Cation exchange capacity (cmol/kg)		7.53
Organic matter (g/kg)		13.1
Soil type		Alfisols (US soil taxonomy)
Soil texture		Sandy loam
Soil particles distribution
	2.0~0.05 mm (%)	68.6
	0.05~0.002 mm (%)	22.9
	<0.002 mm (%)	8.5

Note: The total Cd was determined using graphite furnace atomic absorption spectrophotometry after digesting with HCl-HNO₃-HF-HClO₄.