Effects of Tree Shelters on the Survival and Growth of Argania spinosa Seedlings in Mediterranean Arid Environment

Table 1

Physicochemical characteristics of the plot study soil.

Soil depth (cm)	C (%)	N ()	C/N	OM (%)	pH (1 : 5)	P (mg/kg)
0–20	2.12	0.85	24.89	3.66	7.17	36.17
20–40	0.32	0.08	40.62	0.56	7.36	36.25