Effect of NPK and Potting Media on Plant Growth and Spike Yield of Dendrobium Orchid cv. Sonia Hiskula

An experimental was laid out in the CRB Design having 10 treatment and 3 replications. The treatment T9 (10:30:30 NPK + 0.3% Brick pieces + Gravel + Poultry manure) was found to be statistically significant over other treatments which recorded highest plant height (29.61cm), number of leaves (9.69), leaf area (36.11cm2), number of new shoots per plant (4.58), shoot girth (3.16 cm), root length (16.73cm), number of root per plant (20.25), total number of spikes per plant (3.47), number of florets per spike (10.69), spike length (33.91cm), and longevity of spike (42.91 days) under shade net condition.