1. Reason: If the soil used is slightly alkaline, or the soil is airtight, the soil may be hardened, and the iron element in the soil will become insoluble iron, resulting in poor root respiration and inability to absorb iron element, resulting in yellow leaves or iron-deficient yellow leaves.
2. Treatment method: If there is only slight yellowing, appropriate soil loosening can be carried out and some white vinegar can be added to alleviate the alkaline environment and reduce the hardening degree of the land.If the yellow leaf problem is very serious, soil replacement treatment is needed to reuse fertile and loose culture soil for planting.
1. Reason: When fertilizing, if there is too much fertilizer or the fertilizer is not decomposed, it may burn the roots and cause the roots to rot.This will lead to part of the root system damage, unable to absorb nutrients, resulting in yellowing leaves.
2. Treatment method: If the degree of yellow leaves is light, the lower part can be emptied and watered more, so that the fertilizer is lost.It can be done several times until it gets better.If the situation is serious, cut off the leaves which are yellow and dry, and change the soil.During the soil replacement process, the decayed roots are checked and cut off, and the suitable soil is reconfigured for planting.
1. Reason: Too little light time will make the leaves unable to carry out photosynthesis, thus the chlorophyll production is not enough, resulting in yellowing of the leaves.If they are all yellow at the bottom and inside, it may be that the upper branches and leaves are too dense to block the sun, resulting in the lower and inside can not accept the hanging light.
2, treatment: It is best to give it a long time of light, indoor to be placed in the balcony and other locations to receive light.If yellow leaves appear at the bottom and inside, it is necessary to trim too dense leaves in time to ensure its internal light transmission and ventilation.
