Tomato cv. ‘Micro-Tom’ plants were grown in the autoclaved commercially available substrate for tomato cultivation with 10% of perlite added in 2012. Fertilizers N (100–400 mg l-1), P (50–200 mg l-1), and K (100–500 mg l-1) had been already added to the substrate, pH was 5–7. No additional fertilization was applied during the experiments.