. 2020 Jul 16;11:1028. doi: 10.3389/fpls.2020.01028

Table 1.

Average and standard error values obtained from physicochemical properties of Agave lechuguilla rhizosphere and bulk soil in the interspaces.

Physicochemical property	Dry season		Rainy season		F value
Physicochemical property	Rhizosphere	Bulk soil	Rhizosphere	Bulk soil	Season	Soil type	Interaction
Moisture (%)	14.85 ± 3.12^a	7.65 ± 2.41^b	12.67 ± 2.82^ac	11.04 ± 2.77^c	0.643	30.643***	12.270**
pH	7.72 ± 0.31^a	7.95 ± 0.34^ab	7.87 ± 0.19^ab	8.03 ± 0.19^b	2.218	6.597*	0.205
Ca²⁺ (mg/kg)	1037.11 ± 78.90^a	1004.68 ± 34.21^a	1987.62 ± 148.62^b	1917.81 ± 120.85^b	945.317***	2.845	0.38
NH₄⁺ (mg/kg)	3.04 ± 0.83^a	2.06 ± 0.89^a	13.55 ± 1.81^b	14.10 ± 2.95^b	454.684***	0.162	2.093
TN (mg/kg)	1.70 ± 0.49^a	1.07 ± 0.43^a	1.76 ± 1.02^a	4.49 ± 2.67^b	12.64***	1.644	18.491***
C/N	17.74 ± 7.72^a	30.76 ± 2.61^a	25.80 ± 6.50^a	7.92 ± 2.30^b	14.191***	2.316	15.935***
NO₃^- (mg/kg)	25.95 ± 6.49^a	18.21 ± 10.76^b	49.48 ± 13.73^c	28.81 ± 7.20^a	33.075***	22.616***	1.408
EC (μS/cm)	322.31 ± 88.15^a	224.34 ± 75.50^bc	232.97 ± 47.57^b	179.02 ± 20.07^c	11.010**	18.968***	0.827
OM (%)	3.61 ± 1.69^ab	1.98 ± 0.62^a	3.98 ± 1.11^b	2.94 ± 0.73^ab	10.18**	21.09***	2.43
K⁺ (mg/kg)	186.22 ± 56.60^ac	125.15 ± 42.49^a	305.90 ± 81.11^b	228.87 ± 49.43^c	42.682***	16.309***	0.218
Mg²⁺ (mg/kg)	102.34 ± 34.14^ac	70.09 ± 12.05^a	164.83 ± 32.35^b	134.34 ± 26.09^c	63.449***	15.554***	0.012
P (mg/kg)	0.17 ± 0.09^a	0.11 ± 0.05^a	0.80 ± 0.12^b	0.61 ± 0.09^c	445.656***	20.865***	5.534*
Na⁺ (mg/kg)	6.79 ± 2.34^a	6.56 ± 1.48^a	8.44 ± 2.61^a	7.13 ± 1.34^a	5.71	0.731	0.699
TC (mg/kg)	27.48 ± 7.43^a	29.48 ± 6.21^a	26.35 ± 11.85^a	21.54 ± 9.85^a	2.975	0.286	1.677

Letters beside standard deviation indicate significant differences.

***p ≤ 0.001, **p ≤ 0.01, *p ≤ 0.05.