1. Improper fertilizationReason: The leaves of spring fern gradually turn yellow. One of the important reasons is the lack of certain fertilizer elements, such as nitrogen, phosphorus, potassium, magnesium, iron, etc. The lack of nutrients will naturally cause the leaves to turn yellow. In addition to lack of nutrients, it may also be caused by excessive and too concentrated fertilizer. Excessive fertilizer damage can also cause old leaves to turn yellow and fall off. Solution: If there is a lack of fertilizer nutrients, apply them according to growth needs to meet the growth needs of the plants. If fertilizer damage occurs, fertilization should be stopped and water should be added to dilute the fertilizer. 2. Improper wateringReason: If you do not water the plant regularly during growth, the soil will become dry and lack water, causing the leaves to turn yellow. If too much water is given at one time, the roots will be unable to bear it, causing the roots to rot and the leaves to turn yellow. Solution: In a drought, you must pay attention to watering properly and keep the soil in the pot moist, which will be beneficial to the growth of the plant. Control the amount of watering, don't water too frequently, just water thoroughly. 3. Alkaline soilCause: If grown in alkaline soil, it will stunt growth and cause yellow leaves. Solution: You can change the soil for the plant. If the soil is alkaline, water it with rice water. 4. Wrong lightingReason: If the growing environment is too closed and the light is too dim, the leaves of the spring fern will turn yellow. On the contrary, exposure to strong sunlight can also cause yellowing of leaves. Solution: Do not keep it in a shady environment for a long time. It is best to keep it in semi-shaded and diffuse light. |
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