(1) specific reasons: there are more requirements for nutrients in growing period. If the amount of long-term fertilization is too little, or if the basin has not been changed for a long time, the nutrition is seriously lacking, and the leaves are easy to turn yellow. This mainly refers to nitrogen.
(2) solution: supplement some fertilizer containing nitrogen elements in time. However, do not use too much at one time, nor too much.
(1) specific reasons: most of them occur in winter. The temperature is too low, cause the plant to suffer from frost damage, easy to make the leaves yellow, when serious, it will wither and die.
(2) solution: adjust the room temperature in time after discovery, or move to a warmer place.
(1) specific reason: if the water is lack of iron, the leaves will turn yellow.
(2) solution: add some soluble iron, pour some alum fertilizer, etc.
(1) specific reason: plants need more light, especially in winter. Long term shade, lack of light, branches and leaves will turn yellow.
(2) solution: replenish the light immediately after finding the yellow leaves, and ensure more than six hours of light every day. However, when encountering too strong light, it must also be blocked.
(1) specific reasons: no pruning for a long time, too many disordered branches and leaves, poor light transmission, insufficient nutrition supply, easy to make the leaves yellow
(2) solution: if the branches and leaves are too lush, they should be pruned in time. It is better to prune them regularly. In addition, some fertilizer can be added properly.