Effects of Macro- and Microelements in Soil of Rose Farms in Taif on Essential Oil Production by Rosa damascena Mill.

Table 2

Mean levels of macro- and microelements in Shafa and Hada soil samples (g/kg).

Element		Shafa		Hada
Type	Element	Range	Mean ± SD	Range	Mean ± SD
Macroelements	Ca	0.31–1.19	0.61 ± 0.31	0.19–1.94	0.82 ± 0.631
	Mg	0.01–0.03	0.02 ± 0.01	0.01–0.13	0.058 ± 0.05
	K	8.75–20.18	16.97 ± 3.83	4.37–13.27	8.163 ± 2.85
	Na	10.78–18.90	14.38 ± 2.34	2.42–6.34	4.680 ± 1.291
Microelements	Se	0.015–0.025	0.0189 ± 0.015	0.0066–0.0201	0.0162 ± 0.004
	Mn	0.146–0.594	0.319 ± 0.163	0.1087–0.5712	0.3471 ± 0.17
	Cu	0.0075–0.041	0.018 ± 0.01	0.0066–0.0635	0.0286 ± 0.023
	Fe	1.286–2.0961	11.444 ± 6.17	0.1900–16.776	10.353 ± 5.37
	Zn	0.0195–0.131	0.076 ± 0.04	0.0101–0.0818	0.033 ± 0.024