. 2021 Jun 23;12:680030. doi: 10.3389/fpls.2021.680030

Table 1.

Physiochemical parameters and ionic composition of the tested treatments.

Fertilizer	Organic waste-based	Low-mineral	High-mineral
Physiochemical parameters n= 28–31
Temperature (°C)	18.4 ± 2.3^a	18.4 ± 2.3^a	17.1 ± 2.3^a
ORP (mV)	273 ± 57^a	271 ± 40^a	291 ± 44^a
DO (% saturation)	83.4 ± 5.5^a	83.2 ± 6.2^a	63.5 ± 15.5^b
pH	6.3 ± 1.0^a	7.0 ± 0.5^b	6.4 ± 0.3^a
EC (mS·cm⁻¹)	0.5 ± 0.2^a	0.4 ± 0.2^a	3.8 ± 0.6^b
Water use (L·plant⁻¹·day⁻¹)	1.02	1.33	0.83
Cations (mmol·L⁻¹) n = 17
Na⁺	1.5 ± 0.6^a	0.2 ± 0.1^b	0.4 ± 0.2^b
${NH}_{4}^{+}$	0.181 ± 0.334^ab	0.003 ± 0.007^b	0.370 ± 0.479^a
K⁺	0.79 ± 0.63^a	0.28 ± 0.44^a	10.36 ± 0.94^b
Ca²⁺	0.42 ± 0.11^a	0.91 ± 0.46^a	7.74 ± 3.39^b
Mg²⁺	0.2 ± 0.08^a	0.34 ± 0.18^a	3.95 ± 1.28^b
Anions (mmol·L⁻¹) n = 18–19
Cl⁻	1.05 ± 0.19^a	0.16 ± 0.2^b	0.19 ± 0.19^b
${NO}_{2}^{-}$	0.03 ± 0.03^a	0.02 ± 0.01^a	0.17 ± 0.22^b
${NO}_{3}^{-}$	1.5 ± 1.1^a	1.5 ± 1.1^a	23.5 ± 5.4^b
${PO}_{4}^{3 -}$	0.28 ± 0.18^a	0.20 ± 0.16^a	1.52 ± 0.53^b
${SO}_{4}^{2 -}$	0.12 ± 0.12^a	0.26 ± 0.11^a	2.63 ± 0.72^b

ORP, oxidation-reduction potential; DO, dissolved oxygen; EC, electrical conductivity. Mean values ± sd are shown. Different letters indicate statistically significant differences between treatments at p = 0.05.