1、 Improper fertilization

Reason: the leaves of Chunyu turn yellow gradually. A very important reason is the lack of some 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 the lack of nutrients, it may also be caused by too much and too thick fertilization. The fertilizer damage caused by too much fertilizer will also cause the old leaves to turn yellow and fall off

Solution: if there is a lack of fertilizer and nutrients, it should be applied according to the growth needs to meet the needs of plant growth. If fertilizer damage occurs, fertilization should be suspended and watered and diluted when fertilizer damage occurs

2、 Improper watering

Reason: if you water irregularly during growth, the soil will be dry and lack of water, causing the leaves to turn yellow. Once the one-time water supply is too much, it will make the root unbearable, cause the root to rot, and the leaves will turn yellow

Solution: in the state of drought, we must pay attention to reasonable watering and keep the basin soil moist, so as to be conducive to the growth of plants. If you water too often, you can't control the amount of water

3、 Alkaline soil

Reason: if it grows in alkaline soil, it will hinder the growth and cause yellow leaves

Solution: replace the soil for the plant. If the soil is alkaline, pour rice washing water

4、 The light is not right

Reason: if the growth environment is too closed and the light is too dark, it will cause the leaves of spring feather to turn yellow. Conversely, exposure to strong light will also cause yellow leaves

Solution: don't keep it in the shade for a long time. It's best to keep semi Yin astigmatism irradiation