Improper watering is one of the main reasons for the yellow leaves of Ping'an trees. Too much or too little watering may cause the yellow leaves.
Too much watering will lead to ponding at the root of Ping'an tree, water can not be fully absorbed, and the soil drainage is not smooth, leading to root damage and decay. It is characterized by no obvious changes in the old leaves and yellowing in the young leaves.
Due to the lack of water or too hot weather, Ping'an tree is short of water and dry, and its leaves turn yellow, which is characterized by damage and yellow from bottom to top, with the old leaves as the first.
Watering must be reasonable, control the amount of watering, watering should not be too much, wetting is good, to prevent root rot.
In case of yellow leaves caused by drought, watering should be carried out in time, otherwise the whole plant will wither, fall or even die due to the long time of water shortage.
Fertilizer is an essential element for plant growth. Too much or too little fertilizer can cause the leaves of Ping'an tree to turn yellow. Too much fertilization will make the young leaves of Ping'an tree plump and uneven. However, if the fertilization is insufficient or the concentration of fertilization is too low, the fertilization will not work. If the interval is too long, the leaves of Ping'an tree will turn yellow, which is characterized by the yellow of young leaves and young stems.
If it is found that there is too much fertilization, it is necessary to properly control the fertilization, and properly water the basin soil to ensure that it will not accumulate water, so that the fertilizer can be discharged in time and the fertilizer concentration can be reduced. If the amount of fertilizer is too small, it is necessary to apply fertilizer in time and increase the times of fertilizer application. Otherwise, it will cause yellow leaves of the whole plant or death of the plant. Do not apply a large amount of concentrated fertilizer.
A lack of iron in Ping An trees can also cause yellow leaves. Due to the change of fertilization conditions, the phenomenon of yellow leaves is serious, which is characterized by obvious young leaves, light old leaves, yellow mesophyll and green vein, forming a typical network.
In this case, ferrous sulfate solution can be used to solve the problem. Cake fertilizer, ferrous sulfate and water can be reasonably prepared and sprinkled.
In summer, when the light is strong, the sun will cause the leaves of Ping An trees to turn yellow. The yellow leaves of Ping An trees caused by low temperature are due to the low temperature in winter, especially outdoors. If the temperature is lower than 5 degrees, Ping'an trees will be damaged by freezing and the leaves will turn yellow.
In summer, Ping An trees can be placed in the environment with 50% shading for maintenance. In winter, the safety trees should be moved to the indoor for maintenance, and the temperature should be kept above 10 degrees to reduce the number of watering.
Generally, when the Ping'an tree is just bought back, it will turn yellow because of the basin soil.
Because Ping'an tree needs to be transplanted before it is sold, the new basin and new environment will make Ping'an tree appear yellow leaf phenomenon to some extent. In order to save soil, some sellers will put some soil slag garbage at the bottom of the basin, and only cover the top with a layer of soil, which will also cause the leaves of Ping'an tree to turn yellow and wither.
The newly bought Ping'an tree needs to slow down its seedlings. It should be kept in a cool and ventilated place for a week, and then gradually see the light. If there is a problem with the soil, you can take the Ping'an tree out of the soil to the basin and replace it with new soil for replanting.
Diseases and insect pests are easy to cause damage to the roots of Ping'an trees, and then cause yellow leaves. We should carefully check the growth of Ping'an tree and prescribe medicine according to the symptoms. If there are rotten roots, they should be removed and replanted after disinfection.
There are certain requirements for the growth environment of Ping An tree. It grows well in a ventilated environment. If the growing environment is not ventilated, it is easy to cause the leaves to turn yellow. So we must strengthen the indoor ventilation.
In terms of water quality, long-term use of alkaline water to water Ping'an trees will cause the leaves to turn yellow slowly and fall off after a long time. Therefore, pay attention to the acidity and alkalinity of water when watering, and apply more mature organic fertilizer, such as manure, peat, sawdust, edible fungus, etc., to gradually improve the alkaline soil, or directly change the soil.
