Table 3.

Macro and micronutrients concentrations in fruit, root, stem, leaves and total plant obtained with the different ZnO-NPs rates in the calcareous soil. Values compared using LSD multiple-range test at the 0.05 level of probability. Homogeneous groups are denoted with the same letter. Italic values show significant orthogonal contrast at the 0.05 level of probability between treatment means (nil- ZnO-NPs vs ZnO-NPs) and the estimated difference between them. ∗∗∗, ∗∗, and ∗ denote significance at 0.0001, 0.001, and 0.05, respectively.

	CALCAREOUS SOIL
	Treatment	tomato fruits			root			stem			leaves	total
Macronutrients concentration mg 100g plant−1
N	Nil-ZnNP	210.61			646.81			84.17			226.31	172.42
	NPs-3	200.30			595.70			68.06			173.86	140.13
	NPs-20	185.01			502.31			80.22			125.40	140.15
	NPs-225	227.88			675.43			86.53			205.39	145.50
Ca	Nil-ZnNP	8.66			315.54			60.15			224.83	100.37
	NPs-3	7.92			260.61			68.32			203.08	87.54
	NPs-20	8.22			295.80			59.76			285.25	92.31
	NPs-225	6.95			272.04			51.58			226.32	108.84
K	Nil-ZnNP	400.72			404.04			545.11			310.14	461.84
	NPs-3	417.62			450.95			429.29			339.41	431.26
	NPs-20	411.68			479.44			461.10			238.46	388.50
	NPs-225	378.32			432.64			538.19			386.32	465.84
Mg	Nil-ZnNP	26.28	c ∗	0.01∗	587.85			69.02			183.48	96.02
	NPs-3	24.08	bc		463.55			52.91			144.65	70.68
	NPs-20	21.05	ab		616.04			70.36			150.57	73.98
	NPs-225	19.46	a		412.02			59.35			156.35	87.61
P	Nil-ZnNP	64.88		0.03∗	41.92			45.46	c∗	0.04∗	52.77	55.09
	NPs-3	59.40			39.35			28.74	a		41.04	42.93
	NPs-20	55.28			38.46			36.66	b		46.04	47.30
	NPs-225	50.71			38.20			34.09	ab		39.06	40.78
S	Nil-ZnNP	17.63			41.74			30.90			193.43	80.34
	NPs-3	16.83			44.15			27.37			179.79	66.53
	NPs-20	16.12			38.46			32.02			171.51	68.45
	NPs-225	15.30			40.77			31.92			191.16	87.05
Micronutrients concentrations mg∙kg plant−1
B	Nil-ZnNP	0.94			8.87			1.85			10.17	4.34
	NPs-3	0.85			8.52			1.58			10.56	3.80
	NPs-20	0.93			8.77			1.90			9.42	3.89
	NPs-225	0.74			8.21			1.74			9.64	4.44
Cu	Nil-ZnNP	0.98		0.38∗	3.58			0.55	b∗		1.59	1.03
	NPs-3	0.89			3.89			0.33	a		1.23	0.77
	NPs-20	0.78			4.33			0.50	b		1.90	0.95
	NPs-225	0.86			3.27			0.43	ab		1.71	1.03
Fe	Nil-ZnNP	3.93			2737.07			6.07			14.16	13.64
	NPs-3	3.13			2130.99			6.64			18.69	12.03
	NPs-20	3.60			3009.22			5.46			13.56	13.29
	NPs-225	3.17			1940.31			5.36			19.35	12.57
Mn	Nil-ZnNP	2.23		1.35∗	58.54			3.49			8.00	4.76
	NPs-3	1.98			46.53			2.82			7.91	4.07
	NPs-20	1.60			60.81			3.71			6.91	3.96
	NPs-225	1.77			45.55			3.07			7.97	4.70
Na	Nil-ZnNP	0.23			21.75			0.55			0.42	0.46
	NPs-3	0.23			19.69			0.33			0.43	0.37
	NPs-20	0.20			17.55			0.47			0.34	0.37
	NPs-225	0.21			22.18			0.48			0.48	0.47
Zn	Nil-ZnNP	2.71	ab∗∗		19.24	a∗∗	44.58∗	3.55	a∗∗∗	10.06∗	2.79	3.23
	NPs-3	2.52	a		17.91	a		3.65	a		2.93	3.29
	NPs-20	2.84	b		35.31	b		6.61	b		2.92	4.13
	NPs-225	3.49	c		49.08	c		10.44	c		4.36	7.01