Effect of growing media on the concentration of (A) nitrogen, (B) phosphorus, and (C) potassium in Anthurium andraeanum cv. ‘Pink Lady’ at 15 months after planting.

Composted corn cobs (C), pyrolysed corn cobs (PC), pyrolysed garden wastes (PG), and Pindstrup sphagnum peat moss (P); PC (100%), C (100%), PG (100%), C (70%) + PG (30%), PC (70%) + PG (30%), P (50%) + C (35%) + PG (15%), P (50%) + PC (50%), P (50%) + PC (35%) + PG (15%), and P (50%) + C (50%). Error bar denotes standard error of mean (n = 3). Means for the same plant part followed by the same letter are not significantly different according to Duncan's multiple range tests at P<0.05.