Table 2.

Characteristics of the nutrient solutions used during the second experiment.

	Molar Ratio NH4:NO3 (%)
	5:95	15:85	25:75
	(mg L−1)
N-NO3	100	90	80
N-NH4	5	16	26
K	117	117	117
P	16	16	16
Mg	24	24	24
Ca	86	86	86
Cl	0	0	20
S	31	57	71
pH	6.3	5.9	5.8
EC (mS cm−1)	1.12	1.42	1.40