How to turn pots and trim orchids scientifically

Orchids usually need to change pots, change soil and prune roots every year. The methods are as follows:

Orchids pot, pot soil should be fully dry, plant gently knock out from the pot, remove soil, be careful not to hurt the roots. Then wash the roots and leaves with clean water, cut off the rotten roots and cut off the roots, apply sulfur powder on the cut or immerse the injured roots in potassium permanganate solution for half an hour to prevent germs from invading the wound. Then put the orchids in a cool place, wait for the roots to soften slightly before changing the soil for planting. Because orchid leaves grow only once on the false bulb, new leaves no longer grow on the old false bulb, so it is not appropriate to cut orchid leaves at will.