TABLE 1.

Soil chemical properties of two putting green root zones used for creating or evaluating the growth prediction models.

	Depth (cm)	SOMa (%)	Pb	K	Ca	Mg	CECc (cmol kg–1)	pH
			(mg kg–1)
Research green 1	0 – 5	1.23	64.2	91.6	1210	295	8	7.5
	5 – 10	0.55	17.0	25.5	579	144	4	7.3
Research green 2	0 – 5	0.67	25.9	40.7	487	133	3	7.7
	5 – 10	0.51	24.1	17.2	430	102	3	7.5

^aSOM, soil organic matter by loss on ignition (360°C for 2 h).

^bnutrients extracted via Mehlich-3 method (Mehlich, 1984).

^cCEC, cation exchange capacity via summation of extracted cations.