Is the yellowing of iron tree leaves related to improper fertilization? Can the iron tree be yellowed with foliar?

After the beginning of summer, most iron trees in the south enter the growing period, and some domestic iron trees do not grow very well, with yellowing leaves, withered yellow basal leaves, green upper leaves, and so on. Most of the above causes are caused by improper management. Remedial measures:

(1) the main reasons for the absence of new leaves, or yellowing rather than withering yellow leaves, are mainly caused by mild cold during the winter, or changing the soil prematurely in early spring, or being too dry for a time, or malnutrition. In view of the above different diseases, the general can be through turning the basin, into the new soil (two-thirds of the mountain mud, 1/3 river sand mixed), put in the outdoor culture, or only through loose soil topdressing. Or cut off all the yellowed leaves and fertilize them by loosening the soil so that they can grow new leaves.

(2) most of the withered and yellow leaves of the whole plant were caused by severe frost, or basin soil for too long, or too much watering and too often. The iron tree with this disease, as long as its stem is still hard, shows that it still has vitality, and it can gradually recover its vitality and grow new leaves through the above methods such as turning the basin to change soil or loosening soil and topdressing fertilizer.

(3) as for the iron tree with withered and yellow basal leaves and turquoise at the top, it can keep the green leaves and cut off the yellow leaves to make it more elegant and beautiful. In addition, in summer care, we should also pay attention to the growth of new leaves, let it directly bask in the sun, so that the leaves are short and dense, to prevent ugly growth. When adding nutrition, it is best to use organic fertilizer. If you use chemical fertilizer, it is necessary to correctly grasp the dosage concentration, do not be too thick, in order to prevent fertilizer damage and cause leaf yellow and so on.

How to control the yellowing of irontree leaves?

Friends who cultivate iron trees should find that if they are not properly maintained, the leaves of iron trees will be yellowed, so how do they turn yellow and how to deal with them?

How to deal with the yellowing of iron tree leaves?

1. The planting environment is not suitable: 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. However, the iron tree is not resistant to hot sun exposure, especially the new leaves are easy to burn, withered and yellow, therefore, the new leaf stage gives iron tree certain shielding conditions.

2. 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.

3. Dull yellow: 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.

4. Improper fertilization: many people who are eager to love iron 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.

The above is the relevant introduction of this article, I believe you have a simple understanding after reading it, if necessary, you can continue to pay attention to the No. 1 home network for more information.

What if the leaves of the iron tree turn yellow? What are the causes of yellowing of iron tree leaves and what are the control measures?

Iron tree is a kind of plant which is often used in garden. it has high ornamental value and is loved by many flower friends. It is a kind of evergreen plant in all seasons. Once the leaves turn yellow, it will affect its ornamental value. So, do you know the reasons for the yellowing of iron tree leaves and what are the prevention and control measures? Let's study with the editor.

(1) Iron deficiency of iron trees

Cycads like iron. When potted, due to the limited soluble iron in potted soil, iron fertilizer should be added frequently, otherwise it will cause iron deficiency yellowing. The way to prevent yellowing of iron deficiency is to spray 0.2% ferrous sulfate every 2 to 3 weeks or to add 0.5% ferrous sulfate when fertilizing. Ferrous sulfate contains iron, sulfur and other trace elements, which can not only prevent cycad leaves from yellowing, make the leaves green and bright, but also stimulate plant growth.

(2) Iron trees suffer from cold and cold.

Cycads originated in southern China and India, like to be warm and afraid of cold, and suffer frost damage when the temperature is below 0 ℃. In the area north of the Huaihe River in China, the temperature suddenly drops below 0 ℃ in winter because of the strong cold spell, and the fleshy roots of cycads are easy to freeze, resulting in yellowing leaves and even the death of the whole plant. Therefore, during winter maintenance, we should pay attention to anti-freezing and keep warm, and take anti-cold measures before the arrival of the cold current, so that the overwintering temperature is not lower than 5 ℃, so that the leaves can be prevented from freezing.

(3) the light of the iron tree is insufficient or too strong.

Cycad is a positive tree species, but in continuous high temperature and hot sun exposure, the leaves are easy to be burned by the scorching sun and cause the dry tip to turn yellow, especially when the new leaves have not yet spread, we should pay more attention to proper shading. Although cycads are resistant to semi-shade, they are placed in too dark places for a long time and lack of sunlight, which will also make the leaves green and have a great discount on ornamental value. Therefore, when maintaining cycads in spring, autumn and winter, cycads should be placed in sunny places, in summer, cycads should be placed in shade sheds or trees, and family cultivation can be placed on balconies or windows with ventilation and sunshade, so as to avoid strong light and promote branches and leaves to germinate and grow healthily. the leaves are green.

(4) uneven drying and wetting of basin soil.

The fleshy roots of cycads can withstand moderate drought, but not waterlogging. During cultivation, the potted soil can be dry and not too wet. If the soil is watered too much and the basin soil continues to be too wet, the soil gap is full of water, the air can not enter, and the root respiration weakens gradually, which affects the absorption of water and minerals, which leads to the wilting of leaves from bottom to top, the blackening of roots and the death of plants. However, the basin soil should not be too dry, which will make cycads lack the necessary moisture for growth, and the leaves are more likely to turn pale and yellow. if not saved in time, it can lead to the death of the whole plant. The principle of watering is "dry and wet, no dry, no watering", especially in winter, if the basin soil is not dry, there is no need to water, which can prevent yellowing caused by improper watering.

(5) the temperature is not enough

Cycads like warm and humid environments. In the north of our country, especially in the dry and windy season or winter heating season, the indoor air humidity is very low, and the leaf color is dull, the leaf edge is scorched or the leaf dry tip is often occurred. Therefore, we should often take foliar water spraying, ground water spraying or air spray to increase air humidity, which can not only prevent the leaf dry tip caused by too small humidity, but also remove leaf dust and keep the leaf surface clean.

That's all I know about iron tree today. I hope it will be helpful for flower friends to read this article. If you want to know more about iron tree, please continue to pay attention to the succulent flower bed, we will provide you with more related knowledge!