Make the butterfly orchid bloom more and better.

1. The flower bud differentiation of Phalaenopsis should have a certain annual accumulated temperature and a short period of low temperature treatment. Low temperature treatment generally began from 110 to 140 days before flowering, and the light intensity should be gradually increased one month before treatment to accumulate sufficient nutrients for flower bud differentiation. The foliar surface should be sprayed with 100-fold liquid of potassium dihydrogen phosphate once or twice in 7-10 days before treatment.

2. The suitable daily temperature of low temperature treatment is 2527 degrees and the night temperature is 15,18 degrees, which should ensure good ventilation. It is necessary to apply nitrogen, phosphorus and potassium (9:45:15) quick-acting liquid fertilizer before flower bud germination, and then apply nitrogen, phosphorus and potassium (10:30:20) quick-acting liquid fertilizer after the flower bud is drawn to 15-20 cm, concentrated on the leaf and root, once every 10 days, less light fertilizer.

3. At flowering stage, ventilation should be strengthened, air humidity should be reduced, and water supply of roots should be increased to ensure that the flowers are of the same size.