What are the precautions for potting up new orchids and weak seedlings?

Recently, buying orchids and repotting have entered peak season. I'm writing this post for orchid enthusiasts' reference: purchasingorchidsFirst, only when the orchid seedling's root system is in good condition and actively growing with full vitality does it have good absorption capacity. With a good root system, fertilizing helpsorchidsgrow better and promotes growth. If the root system is very weak and you fertilize blindly, it only makes things worse, possibly creating a vicious cycle that kills an otherwise healthyorchidSo it is said: "Grow orchidsby growing roots first." If a weak seedling is divided into pots (according to the principle of "divide when extremely vigorous, divide when extremely weak," weak and diseased seedlings should be repotted early), several points should be noted: 1. Lean cultivation: you can use the "revival soil" from repotting forcultivation, because the fertilizer elements in this soil are relatively mild, and it contains orchid fungi, so it is very suitable for small, weak orchid seedlings. No fertilizer, grow in shade. (Note the three "nots": light not too strong, ventilation not too much, growing medium not too wet.) 2. If a weak seedling has few roots but is not diseased, you can use a healthy, vigorous ordinary variety as a companion planting. Orchids like to grow in groups and dislike being alone, so a weak orchid can borrow the physiological vitality of a healthy orchid, which supplies orchid fungi and repairs the root system, thereby allowing it to regain vigor. After regaining vigor, a small amount of foliar fertilizer can be applied. 3. According to the saying "dry potting grows roots," weak plants should be potted with slightly less water than normalorchidsbeing started, and the growing medium should have strong drainage, using larger particles. 4. Light should lean toward shade, using "dry potting and shaded cultivation" to balance yin and yang.Orchidsgrow at night by relying on photosynthesis during the day to supply cell division and proliferation at night. Shaded cultivation reduces transpiration, thereby reducing the burden on the root system and promoting rooting and the healing of damaged roots. 5. Ventilation. Mild, gentle airflow is preferable. If weak, diseased small seedlings are placed under relatively strong cross-ventilation, the orchid seedlings can dehydrate and dry out, causing death. The above are the precautions for repotting weak plants, and they can also be referenced for new orchids (freshly bought orchids). But be sure to disinfect and temporarily isolate them from the good orchids at home for a period (about ten days), and only after observing that they are normal can they be placed on the shelf and grown together with other established orchids.