What is the reason for the yellowing of orchid leaves? how to deal with it?

Now many people have raised orchid leaves at home, but in the process of breeding, its leaves suddenly turn yellow, so what is the reason for the yellowing of orchid leaves? What are we gonna do with it? The following one home network editor for you to introduce.

1. Improper fertilization: excessive fertilization causes yellowing of leaves, which exceeds the needs of the plant. At first, the leaves are bright and uneven, and then the roots rot, and the leaves are yellow.

Treatment method: should stop fertilizing, irrigate more water, or turn the pot to clean the root and replace the new soil.

2. Nutrient loss: all kinds of nutrient elements in the basin soil have been exhausted, the three elements of nitrogen, phosphorus and potassium have not been replenished in time, the plant is lack of nutrients, and the leaves are yellow and thin.

Treatment method: fertile loam and fertile water should be replaced in time.

3, lack of sunlight: although the orchid is a semi-negative flower, it should see more than four hours of astigmatism at least every day, otherwise the chlorophyll will decrease and the leaves will turn yellow.

Treatment: should set aside free time every day to put the orchid in the sun for a few hours, but not too much exposure to the sun.

4. poor air permeability and water permeability of basin soil: stagnant water in basin soil does not dry for a long time, and it is difficult to breathe in the root system, resulting in yellowing leaves.

Treatment method: loosen the soil and control moisture in time. Fifth, it is impervious to water for a long time. The roots of Cymbidium lose water, and the lower old leaves turn yellow. It should be watered thoroughly to keep the basin soil warm and moist.

In winter, put it indoors and water it once every four days, preferably at noon, watering thoroughly, the water temperature had better be consistent with the air temperature, this can prevent its roots from freezing, and the room temperature must be between 15 and 20 ℃.