In the peak growth period of Phalaenopsis, low concentration of water and fertilizer should be applied, thin fertilizer should be applied more frequently, and fertilization should be stopped when the temperature is above 32 ℃ or below 15 ℃;
Before July, the general compound fertilizer of N, P, K (1:1:1) should be applied alternately with the top dressing outside the root, and mixed into 2000 times liquid to irrigate the root properly.
Apply liquid fertilizer every 15 days in August;
After September, 0.1% potassium dihydrogen phosphate solution was applied as the external root fertilizer.
After October, water and fertilizer should be well controlled to promote the formation of flower bud. During this period, root phosphorus and potassium fertilizer are the main external fertilizer, and micro fertilizer (boron, iron, zinc, etc.) should be applied properly.
In fertilizer selection, it is recommended to apply compound fertilizer or nitrogen fertilizer, and different fertilization methods also need to choose different fertilizers.
Too high nitrogen content will easily lead to excessive growth of leaves.
If the content of soluble salt is too high, the roots will die; if the content is too low, the plants will lack necessary trace elements.
Keep in mind the principle of "applying thin fertilizer frequently"; stop applying fertilizer when the climate is abnormal (high and low temperature); do not apply fertilizer when the root is too wet.
When using water and fertilizer, it is also necessary to ensure the smooth convection of air and avoid water accumulation, which may cause suffocation. When there are water drops on the leaf surface around 4:00 p.m., it is necessary to strengthen ventilation.
The roots and leaves of Phalaenopsis can absorb fertilizer, and the plant should be wetted as much as possible.
When applying water-soluble fertilizer, a small amount of adhesive can be added to improve the adhesion of fertilizer.
