What is the cause of yellowing of the leaves of the iron tree

1. Lack of sunlight.

The normal growth of iron trees is inseparable from sunlight, and if there is no sunlight, natural photosynthesis cannot be carried out smoothly, which will cause the leaves to lose green and yellow. Iron trees can be kept in a sunny place to maintain sufficient sunlight to promote the normal progress of photosynthesis and make the leaves green.

Second, the soil is unsuitable.

Iron trees prefer to grow in slightly acidic sandy soils, if the soil is alkaline or the soil is compacted and impermeable, it may cause poor growth and yellowing of leaves. It can be replaced with loose, breathable acidic soil, and if the soil is alkaline, it can be diluted with ferrous sulfate and watered.

3. Improper watering.

Improper watering can also cause yellowing of the leaves when growing and cultivating. Whether it's a lack of water, dry soil, or overwatering, stagnant water and stuffy roots can cause yellow leaves. If the watering is too little, you can immediately water to replenish the water to soak the soil, and if you water too much, you can control the watering so that the stagnant water in the soil is discharged.

Fourth, improper fertilization.

If the fertilizer is insufficient, it may lead to iron deficiency yellow leaves of iron trees. If the fertilizer is too much and too thick, it may accumulate fertilizer and cause root rot, which will cause yellow leaves. If it is determined that there is a lack of fertilizer, you can apply fertilizer in time to ensure good nutrients.

If you apply too much fertilizer, you should stop fertilizing and dilute it with watering.

5. Pests and diseases.

It is infected with pests and diseases that will cause yellow leaves, and it should be sprayed in time.

There are many reasons why the leaves of the iron tree turn yellow:

1. Improper moisture.

The common cause of yellowing is water yellowing, because too much watering will cause the young leaves to turn yellow, and the iron tree is not tolerant to waterlogging. It is generally watered once every 2-3 days during the growing season.

2. Unbalanced nutrition.

There is also a kind of yellow leaf is a special yellow leaf produced by the lack of iron element in the plant, generally iron deficiency yellow leaves are new leaves are yellow, and the degree of old leaves is lighter. At this time, it is necessary to supplement some common iron supplementation reagents, such as ferrous sulfate, etc., and dilute it and pour it into the soil. In addition to iron deficiency, plants may also lack other nutrients, which can be supplemented in moderation.

3. Soil is alkaline.

Iron tree, rightly named cycad.

Yellow leaf causes: 1. Iron deficiency. If the leaves are yellowed due to iron deficiency, alum fertilizer water should be applied, or ferrous sulfate solution should be sprayed.

2. Burns. Summer shade protects from the scorching sun.

3. The soil is too wet. Soil that is too wet causes root rot and leaves turn yellow. Pay attention to watering not dry or watering, not long-term moisture.

4. There are too many leaves and too dense, and the ventilation is not good. You can cut off some of the leaves, and pay attention to the ventilation outside.

Yellowed leaves can be cut off. As long as the rhizome is not dead and a certain amount of ambient humidity is maintained, the iron tree will re-sprout new leaves.

The yellowing of the leaves may be in the process of maintenance, the water and fertilizer provided for it is excessive, and the water needs to be strictly controlled, or it may be that the iron tree receives insufficient light in the process of growth, and it needs to be supplemented with light, or it may be that the iron tree has a disease phenomenon, resulting in the contamination of the leaves by pathogens, resulting in the phenomenon of yellowing of the leaves. Acacia or wild

The yellowing of the leaves of the iron tree can be cut off, no matter what the cause of yellowing can be cut off, which can save a lot of nutrients and water, but also avoid infection, which is beneficial to recovery. However, if you want it to recover completely, you need to find out the cause of the yellow leaves and adjust the maintenance method. If there is a lack of light, more light should be added and moved to a astigmatism environment for maintenance.

If the watering is not done properly, the watering method should be adjusted, and it is best to be moist during the growing season. If there is a lack of fertilizer, supplement it as soon as possible.

Iron trees are suitable for growing in a sunny environment, and need sufficient light during the growth period, and the lack of light will cause the iron tree to appear yellow, dry up, and slow down the growth rate. At this time, the iron tree needs to be moved to a bright place for maintenance, and given more than 6 hours of light, so that the iron tree can grow vigorously.

Things to pay attention to when planting iron trees

Iron trees are suitable for growing in humid environments, but they are less tolerant of waterlogging. When watering the iron tree daily, make sure that the soil is in a slightly moist state. Overwatering can easily produce stagnant water, which can lead to rot of the root system of iron trees.

The leaves will also turn yellow, so it is necessary to drain the water in the soil in time, and transfer the iron tree to a ventilated environment for maintenance, and in severe cases, it is necessary to repot.

Iron tree in the growth of lead shouting during the demand for fertilizer is low, if not fertilized for a long time, it will lead to the lack of nutrients in the leaves and rhizomes of the iron tree, and there will be yellowing, so when breeding iron trees, it is necessary to apply a diluted liquid fertilizer every 1 week to supplement nutrients, so that the iron tree can grow vigorously.

1. Acidic solution.

Reason: Iron trees need a slightly acidic environment to grow, and if the soil is alkaline, it will cause the leaves of the plant to turn yellow.

Solution: You can choose 500 times ferrous sulfate aqueous solution and other weak acidic substances to water and spray, once a week, after watering several times, you can gradually see the effect.

2. Sufficient light.

Reason: Insufficient light will lead to insufficient nutrition during the growth period, and the leaves will shrivel and turn yellow.

Solution: When the sun is shining, irradiate the plant under scattered light, and do not grow in semi-shade or full shade all the time.

3. Proper watering.

Reason: Too much or not enough watering can lead to yellowing of leaves, if too much watering, it will lead to hypoxic rot of the root system, stiffening and yellowing caused by poor growth; If the hypothesis is not enough, the plant will turn yellow from the bottom up, from old to new, due to lack of water.

Solution: The amount of water should be controlled when watering, and the lack of water in summer should be once in the morning and evening, and once in about 10 days in winter.

4. Scientific fertilization.

Causes: Applying too much or too little fertilizer can cause yellowing of the leaves.

Solution: When fertilizing, the concentration should be lower, and the thin fertilizer should be applied more, if the concentration is too high or the fertilization is too frequent, then the fertilizer should be controlled and watered in time; If the number of fertilization is small, when the young leaves begin to turn yellow, pay attention to fertilizer, but do not apply thick fertilizer.

5. Prevention and control of pests and diseases.

Causes: Pests and diseases such as spider mites, scale insects, yellow spots and yellow spots on leaves can also cause yellowing of the leaves of the plant.

Solution: Remove the diseased leaves, and then spray them in time with carbendazim and other agents to sterilize.