What is the reason for the yellowing of the leaves of Cymbidium

Most of the leaves of this magnolia are cyan, and only some yellow patches appear, so it is likely to be caused by improper fertilization. This is because nitrogen fertilizer is very necessary for plant growth. If there is not enough nitrogen fertilizer, the orchid will suffer from chlorosis. In this case, Hua you can apply more rotten cake fertilizer and water, which can play a good role in alleviating the yellowing of leaves.