Abstract:

Research was conducted to investigate the interaction of different medium, N, P, K Ratio and nitrogen concentration combinations on growth of ‘Onc. Goldiana × Onc. Guiena Gold’. Plants grown in the sphagnum moss: charcoal (1:1) promoted shoot, pseudobulb and significantly enhanced secondary shoot growth. Combinations of sphagnum moss: charcoal (1:1), 30N:10P2O5:10K2O and 200mg/L nitrogen accelerated shoot growth, while giving combinations of sphagnum moss: charcoal (1:1), 20N:20P2O5:20K2O and 100mg/L nitrogen boosted pseudobulb growth, at the same time enhanced secondary shoot growth only increasing N from 100mg/L to 200mg/L.