Table 1

Compounds	Liquid solution characteristics
Compounds	A	B	C	D	E*	P*
Phenol (mgt)	300	300	300	300	300	+
Sodium azide (c...i. wt'wt)	0_02	0_02	0.02	0.02	0.02	0.02
NaHCO: (g L)	-	0.5	0..6	0.6	0.6	0.6
NILCI (gt)				0.016	0.016	0.016
IC₂HPO₄ t3H₂0 (gI)	-	-	-	0.003	0.003	0.003
FeC1₃* 6H₂0 (gl.)	-	-		0.0035	0.0035	0.0035
.MgS0-1*7H₂0 (gt)				0.005	0.005	0 005
CaC1₂*2H₂0 (g L)	-	-	-	0.0032	0.0032	0.0032

* = this means that pH was confided with HCFNaOH 0 1 N around 7 ± 0.5 + = this means that different phenol concentrations were used and are described in each experimental condition.
Where A = natural soil + phenol + sodium azide, B = natural soil + phenol + sodium azide + bicarbonate salt to control pH, C = natural soil + phenol + sodium azide + bicarbonate
salt to control pH, D = natural soil + phenol + sodium azide - bicarbonate salt to control pH + nutritive salts, E = natural soil + phenol + sodium azide + bicarbonate + nutritive
salts + pH control with HCl/NaOH, F = natural soil + different phenol concentrations + sodium azide + nutrient salts + pH control with HCL/NaOH

Table 1: Salt liquid solutions used in different tests in this work.