What to do if the leaves of a potted orange tree turn yellow? What causes malnutrition?

For most young friends, they prefer to plant potted plants at home, and at this time, fruit trees are liked by everyone. But when planting orange trees, there are many precautions worth paying attention to, otherwise it is easy for the leaves to turn yellow. However, it is a very normal phenomenon for the leaves to turn yellow, most of them can prove malnutrition, first of all, lack of nutrients, you can spray some urea on the leaves appropriately.

The second is the problem of insects, so you can do some insect repellent work for orange trees. <>

Whether it is a potted orange tree or other fruit trees that are prone to problems, it can prove that everyone is not taking proper care, so when this happens, be sure to double-check whether the orange tree is healthy and harmless. There is no need to worry too much about the yellowing of the leaves, you just need to find out the cause, then you can get effective improvement. Most of them are due to long periods of exposure to strong sunlight, so potted orange trees can be moved to a shady place.

Also consider whether you are watering the orange trees regularly. If not, it will also appear yellowing, so it is necessary to properly water the orange tree every day. In addition, it is necessary to do the corresponding deworming work, you can properly spray some deworming drugs, try to dilute them with water and spray them again, otherwise the concentration will also lead to certain problems in orange trees.

Potted orange trees are not just planted in the corresponding containers, you need to take care of the fertilizer regularly, and you should consult a professional doctor when you are not sure. <>

In fact, growing vegetables is the same as this, it requires everyone to make corresponding efforts, and in addition, it is necessary to regularly look at the growth status of oranges, so as to effectively make oranges grow healthier and healthier. The yellowing of the leaves is nothing more than the reason for these aspects, as long as you find the right factors, then you don't have to worry about being afraid, and you have to pay the corresponding energy and effort, so it is possible to make the fruit of the orange big and delicious.

Potted orange trees need sufficient water during the growth process, if the water provided to them is insufficient, it will cause the leaves of the plant to dry up and yellow due to lack of water, then it is necessary to increase the number of watering, especially in the season when the weather is hot and the water evaporation rate is fast, when watering the orange tree, you need to water the soil thoroughly. Citrus is a perennial plant that grows in one place for a long time. The nutrients supplied by the soil are depleted year by year, and the accumulation decreases.

In production, attention is paid to the application of nitrogen, phosphorus and potassium, and not to the supplement of other elements.

replacement of soil; adequate nutrients; control of pests and diseases; Precautions. Malnutrition is mainly caused by improper feeding and insufficient intake of children.

It must be that you are not fertilizing, and there are many causes of malnutrition, such as humidity and moisture and corresponding trace elements.

1. Yellow because of flooding. Due to excessive watering or too much rain, poor drainage and irrigation can cause poor respiration and even rot of the root system. The symptoms that manifest are:

The old leaves do not change much or darken in color, and the young leaves turn pale yellow. In this case, mild symptoms can be loosened to open a ditch and watering can be controlled.

2. Because of the drought, the yellowing part is characterized by the gradual development of the old leaves to the new leaves. This kind of wide hall situation is generally due to dry weather, soil surface runoff can not retain rainwater, etc.

3. Caused by excessive fertilization or excessive concentration. It is characterized by the gradual yellowing and shedding of the old leaves, while the new leaves are thick and shiny.

4. Caused by lack of fertilizer. This includes two aspects: one is that due to insufficient fertilization, soil compaction can be overcome by turning over the soil in time and increasing fertilizer; The second is due to the lack of light and causes the year to be hidden, which can be used to enhance the light.

1. Since you are a potted plant, it may be the soil in the pot.

2. Nutrients are insufficient.

3. If the soil is not changed for a long time, or the pH value of the soil changes due to other reasons, orange trees are suitable for slightly acidic soil.

4. Over-watering, resulting in rotten roots.

5. Insufficient light and poor ventilation.

Prevention and control methods are rough

1) Soil modification and fertilization. Improve the soil and do a good job in the drainage and irrigation system to prevent drought and flood disasters.

2) More organic matter fertilizers should be applied to alkaline soils, and special attention should be paid to green manure, soil miscellaneous fertilizers and other acidic fertilizers.

3) In the dry season, it is necessary to retain water and water in time; In the rainy season, attention should be paid to drainage to prevent the loss of available boron.

There are 4 ways to judge by the court:

1. Strengthen management, increase the application of farmhouse fertilizer, combined with root topdressing, spray 10% urea plus 1% potassium dihydrogen phosphate or nutrient liquid fertilizer every 10 days or so.

2. Improve the soil, apply more green manure, soil miscellaneous fertilizer and other acidic fertilizers. On the basis of soil improvement, ferric sulphate can be applied or sprayed with a part% ferric sulphate solution, and part of the roots can be cut off to inhale ferric sulphate.

3. Spray 1% to 1% zinc sulfate solution before spring shoot growth, plus 1% to 2% lime and 1% adhesive. In addition, zinc oxide can also be sprayed to correct treatment.

4. Boron spraying outside the root. Spraying boron fertilizer once in early spring and in full flowering can effectively prevent and control boron deficiency disease. In early spring, spray with a concentration of 100% to 100 volts.

In summer and autumn, the concentration of 100 to 10 percent should be used instead. In order to prevent pesticide damage, about 10% quicklime can be added. The spray should be done on a cloudy day, or on a sunny day when the temperature is low in the morning and evening.

<> the yellowing of the leaves of the potted orange tree, it may be due to the lack of water in the growth process of the plant, resulting in the lack of water and the leaves are dry and yellow, and it is necessary to increase the frequency of watering the orange tree, or it may be caused by disease, which needs to be sprayed to get rid of pests, and it is possible that the orange tree is exposed to strong light and needs to be moved to a semi-shaded place for maintenance.

1. Replenish water.

Potted orange tung chong tree needs sufficient water during the growth process, if the water provided to it is insufficient, it will cause the leaves of the plant to dry up and yellow due to lack of water, then it is necessary to increase the number of watering, especially in the hot weather and the water evaporation rate is fast in the season, when watering the orange tree, you need to water the soil thoroughly.

2. Prevention and control of diseases.

Potted orange trees are susceptible to leaf spot, which causes yellowing of leaves in the early stages and causes the plants to lose their vitality and wither and die in the later stages of the event. You can buy pesticides such as chlorothalonil, spray the orange tree every other week, spray three or four times at a time, and after a while, the leaves of the potted orange tree will no longer turn yellow.

3. Shade in time.

Potted orange trees are suitable for growing in a warm and ventilated environment, it is not resistant to the sun, when the light is too strong, you need to do shade measures for the orange trees, you can also move it to a cool place indoors for maintenance, and you can spray some water mist around the potted plants with a kettle to maintain the humidity of the environment.

4. Maintenance management.

After the leaves of the potted orange tree turn yellow, you need to use scissors to cut off the weak branches of the diseased branches of the yellow branches, and then apply the nutrient solution and other agents that can help the growth of the orange tree on the broken branches to supplement the lack of nutrients of the plant, and you can also apply nitrogen fertilizer to it 1-2 times every other month to promote the vigorous growth of the potted orange tree.