One of the feng shui plants, what should I do if the leaves of the rich tree turn yellow?
First look at the reasons why the leaves of the rich trees turn yellow and deal with them symptomatically;
1. Too much water in the basin and long-term moisture in the soil cause soil hypoxia, which makes some fibrous roots rot, hinders normal breathing and absorption of water and nutrients, and makes the leaves turn yellow and fall off. After injury, the young leaves first turn pale yellow, and then the old leaves gradually turn yellow. Water should be controlled immediately, fertilization should be suspended, and soil should be loosened frequently to make the soil well ventilated.
2. Drought and dehydration. Leakage of flowers or long-term watering (that is, wet on the top and dry on the bottom) will affect nutrient absorption, and it is also easy to cause dull and drooping leaves. First, the lower old leaves are aging and gradually wither and fall off from bottom to top. At this time, it is necessary to water a little, spray some water, let it gradually recover, and then turn to normal watering.
3. Long-term fertilization. Long-term non-application of ammonia fertilizer or changing pots and soil, the soil lacks nutrients such as nitrogen, which leads to sparse branches and leaves, thinning and yellowing. It is necessary to pour the pots in time, replace them with new loose and fertile culture soil, and gradually apply dilute and decomposed liquid fertilizer or compound flower fertilizer.
4. Overfertilization. If too much fertilizer is applied, new leaves will be thick and uneven, and old leaves will fall off in brown. Therefore, fertilization should be stopped immediately, and the amount of water should be increased to make the fertilizer flow out from the drainage hole at the bottom of the basin, or the basin should be emptied immediately, and the clods should be washed with water, and then replanted in the basin.
5, hot and high temperature. In summer, if the cool flowers (such as cyclamen, upside-down golden bell and begonia) are placed in a high temperature place and directly exposed to strong light, it is easy to cause the tips and edges of young leaves to burn or the leaves to fall off. It needs to be moved to a well-ventilated shade in time.
6. Excessive shadowing. Flowers that like sunshine will turn yellow if they are kept in the shade or in a place with insufficient light for a long time.
7. Soil and water are alkaline. The soil and water in most parts of the north contain more saline and alkali. When planting flowers that like acidic soil, such as azalea, camellia, smiling face, gardenia, orchid, magnolia, osmanthus, etc. Due to the lack of soluble iron and other elements that can be absorbed by the soil, the leaves will gradually turn yellow. Acidic soil should be used when planting, and alum fertilizer should be poured frequently during the growth period.