What if the leaves of the iron tree bonsai turn yellow?

As the saying goes, "the iron trees have blossomed." In fact, the cultivation of iron trees is very rare to blossom, generally only the trees that have been cultivated for 20 or 30 years will bloom, and the flowering period is from June to August. Although iron trees rarely blossom, their leaves are magnificent, so they are often raised as excellent foliage plants.

When it comes to iron trees, a large mass of green leaves, hard leaves and sturdy stems come to mind. The appearance of iron trees gives people the image of being as hard as iron, so iron trees are particularly easy to feed in people's minds, and the shadow of iron trees can be seen everywhere in life. Iron tree is a beautiful ornamental plant, the tree shape is beautiful, vigorous and simple, large and beautiful leaves are full of green in four seasons. But who would have thought the leaves of the iron tree turned yellow? Today, let's follow the editor to find out what this is all about.

Lack of light: the iron tree is often used as an ornamental tree, but it is often planted indoors to evolve the air. But in the long run, when the iron tree lacks photosynthesis, the leaves of the iron tree turn yellow. Iron tree is a drought-tolerant and barren plant in Xiyang. If it is planted indoors for a long time, it will cause its leaves to turn yellow. It should be moved outside to expose the sun during the day and back indoors at night, so that it can keep its vitality.

Too much light: this is the simplest reason for the yellowing of iron tree leaves. Iron trees like a sunny, warm and humid environment, so they should be placed in a sunlit place at ordinary times. But the iron tree is not resistant to hot sun exposure, especially the new leaves are easy to burn, withered yellow, therefore, the new leaf stage because of the iron tree must have shelter conditions.

Improper fertilization: many people who love trees often fertilize iron trees because they are worried about malnutrition, but they invisibly lead to iron tree overnutrition, rotting roots and yellowing leaves. When fertilizing the iron tree, the compound fertilizer should not be applied to the main root, but only a very small amount can be evenly applied to an inch of soil at the edge of the basin. If there are rotten roots, the iron tree should be dug up and washed away with water.

Yellow spot: also known as yellowing disease, the cause of the disease may be that the planting soil is alkaline and the iron content is low, which may be a physiological disease in the early stage, and may be accompanied by the infection of weak parasites in the later stage, so that the leaves of the iron tree turn yellow. Iron trees should be replaced with iron-rich soil and properly sprayed with carbendazim.

Other causes of yellowing of iron tree leaves and treatment measures:

1. Water yellow: it is caused by excessive watering, which is characterized by no obvious change of old leaves and yellowing of young leaves, which should be controlled immediately.

2. Dry and yellow. Due to water shortage and drought, it is characterized by the yellow of the old leaves from the bottom up. If the water shortage time is a little longer, the whole plant will be yellow, or even die, so it should be watered in time.

3. Fat yellow. Caused by excessive fertilization or high concentration; characterized by thick, shiny and uneven young leaves; fertilizer, ploughing and watering should be controlled

4. Hungry yellow. It is caused by insufficient fertilizer, low fertilization concentration, and long interval of fertilization; it is characterized by yellow young leaves and tender stems. If you do not apply fertilizer in time after seeing this phenomenon, it will also cause yellow leaves and even death of the whole plant. For flowers lacking fertilizer, do not apply a large amount of thick fertilizer at one time, so as not to cause root burning.

5. Iron deficient yellow leaves. Due to the great change of soil fertility conditions, the phenomenon of yellow leaves often appears in the greenhouse, which is characterized by obvious young leaves, light old leaves, yellow mesophyll, green veins and a typical network, which can be solved by using ferrous sulfate solution. the method is as follows: 7 parts of cake fertilizer, 5 parts of ferrous sulfate and 200 parts of water.

Time: 2019-06-01 Click: