What is the lack of yellow lemon leaves, and what is the reason for the yellowing and burnt edges of

It is not completely certain that there is no ventilation, and the flowers and leaves with thin gases such as smoking, paint, and oil smoke in the room are very sensitive to it. If you look closely, do all the leaves generally turn yellow, or do one side turn yellow more and the other side turns yellow, is the leaf yellow-green mixed from the middle of the vein, or is the leaf half yellow and half green completely. If the flowers are generally yellow and the yellow and green colors are mixed together, it can be basically concluded that there is a lack of fertilizer, and the flower fertilizer can be supplemented.

In the case of the other two cases, it is necessary to consider that it is caused by the absorption of sensitive gases, or the exposure of the leaves, so that ventilation should be strengthened and direct sunlight should not be exposed for a long time.

Yellow leaves are deficient in vitamins E and C, vitamin E is absorbed from sunlight, and vitamin E helps absorb nutrients. Vitamin C helps to retain water.

1) The leaves are yellow, and if the season is about to pass, then don't care.

2) Pay attention to the nutrients and water in the sun and soil, sunlight and temperature help plants grow.

3) You say it's the flowers and leaves are yellow, that's normal:

The season is over. Let it have fruit.

4) The flowers are powdered (seeds), once the flowers are taken away by insects, the flowers are useless and will be yellow.

In general, if there is a lack of potassium fertilizer, the leaves of the plant will turn yellow. Also, you can observe if there are bugs and whether there is ventilation to give it some fresh air.

Don't let it smoke, try to put it in a ventilated place, which will help the transpiration of the plant, and put it in the sun for a long time, which will help the photosynthesis of flowers and leaves, and can absorb a certain amount of ATP

It is a lack of essential elements, it is recommended to buy some compound fertilizers to use, it will be effective.

It should be a lack of fertilizer, when the lack of fertilizer, the lemon leaves are yellow or light green, and the old leaves are more normal and gradually turn from green to yellow, so it is judged to be caused by lack of fertilizer. In addition, lack of light and excessive fertilization can also cause the edges of the young leaves to start to turn yellow.

1. The reason for the yellowing of potted lemon leaves.

1. Lack of fertilizer. Malnutrition caused by the yellowing of leaves, can be sprayed Briberry Yanwo potassium dihydrogen phosphate, this fertilizer in addition to containing nitrogen, phosphorus and potassium, but also contains a large number of trace elements, at the same time in the pot soil application, the growing season half a month, to check the pot soil frequently, such as when there is a dry phenomenon should be changed in time, usually thin fertilizer diligent application and timely pouring some alum water to supplement iron.

2. Lack of light. If the shade environment is placed for a long time, the leaves can not get enough sunlight, can not form chlorophyll, and the whole leaves turn yellow and then fall off.

3. Excessive fertilization.

The yellowing of flowers caused by excessive fertilization or excessive concentration is manifested in dry brown at the top of the new leaves, and the general leaf surface is thick and dull, and the concave and convex are not stretched, and the old leaves are scorched and yellow. Liberation method: Fertilizer should be stopped, and part of the fertilizer should be washed with a large amount of cleaning to avoid fertilizer damage.

2. Lemon maintenance technology.

When we first plant potted lemons, we should keep them in a sunny place. If you can give it more sun and keep the air around it moist, it will grow well, but be careful not to spray water on the buds with watering. Therefore, it is necessary to pay attention to maintaining the humidity in the air and the moisture in the soil.

The leaves of the potted lemon tree are yellow, and the cause needs to be clarified before taking care of it. If the leaf veins are yellow, it means iron deficiency, and the yellowing of the mesophyll indicates nitrogen; Moderate iron and nitrogen supplementation. If the leaves are yellow due to insufficient soil fertility, you can spray an appropriate amount of potassium dihydrogen phosphate solution.

If it is a pest or disease, it can be removed manually or sprayed with medicine.

2. How to maintain lemon trees.

1. After the lemon blooms, in addition to applying thin fertilizer once a week, it is also necessary to thin the flowers and fruits of the reed finches. When the flower is not opened, a part of the flower buds should be thinned first; After flowering and fruit setting, in order to reduce nutrient consumption, some young fruits that are not in the right position are thinned.

2. During the growth period of the fruit, if the fertilizer and water are sufficient and the nutritional status of the plant is good, some branches will germinate new shoots, and the growth of new shoots will inevitably divert part of the nutrients and affect the growth of the fruit. In order to preserve the fruit, the new shoots that grow should be erased in time.

Lemon it needs to bloom and bear fruit, plant it in a pot, the pot is small and the soil is less, watering and fertilizing must keep up with it, if there is a regular lack of water, after the lack of water, its leaves will roll over, you can leak the ear to recover some after watering back to the balance of water, but the lack of water once or twice, after more times, the leaves under it will be yellow and fall off in a large area, do not lack water, raise lemons must be reasonably controlled watering, the general pot soil dry people quarrel to half, timely water it on the line.

Lemon yellow leaves can be the cause of iron deficiency, malnutrition, root rot, and insect infestation. The yellowing of the leaves of lemons can be supplemented with iron-containing fertilizers to enhance the absorption capacity of the roots. During the maintenance period, if the roots are rotten, it is necessary to remove the rotten parts of the roots, disinfect them, and replant them in the potted cherry blossom soil.

If it is caused by pests and diseases, it needs to be sprayed in time.

If the veins of the leaves turn yellow, it may be that the lemon tree lacks iron. You can properly supplement some iron-containing fertilizers, which can have a good improvement effect. If the mesophyll turns yellow, it may be because of the lack of nitrogen in the leaves, just add some nitrogen fertilizer.

When malnourished, it can also cause lemon trees to turn yellow and lose their leaves after flowering. The roots of lemon trees are weak and cannot absorb sufficient nutrients, so you can apply a large amount of organic fertilizer to make the roots more developed and absorb sufficient nutrients to achieve the growth and development of the spine.

If the roots rot can also turn the lemon leaves yellow, it may be caused by too much water in the pot, or by applying too much fertilizer. The rotten parts can be scraped clean with a knife, and then the soil can be improved to make the soil deep and fertile, and then re-bury the lemon tree in the soil after the wound has healed.

If there are too many pests and diseases, it will also cause the lemon tree leaves to turn yellow, so you can manually repel insects or spray some insecticides. When using the agent, it is necessary to pay attention to it, do not stop using it halfway, it can be sprayed once between 7 and 10 days, and it can inhibit diseases and insects after 3 or 4 days of continuous spraying.

There are four main cases of yellowing of lemon leaves. First, iron or nitrogen deficiency requires targeted supplementation. Second, if the nutrients are insufficient, fertilizer needs to be supplemented, and spraying is generally required.

The third root system is caused by rot, most likely caused by stagnant water. The rotten roots need to be cleaned, and the wound should be healed and covered with soil. Fourth, there are insect pests, which need to be sprayed with corresponding agents.

1. Supplement iron or nitrogen.

1) Specific reasons: Deficiencies in these two elements may make the leaves yellow, but the parts are different. If there is a lack of iron, the mesophyll will turn yellow; If nitrogen is deficient, its veins will turn yellow. Therefore, it is possible to determine which element to supplement according to different symptoms.

2) Solution: Observe the yellowing part of the leaf and supplement the corresponding elements in a targeted manner.

2. Supplementary fertilizer.

1) Specific reasons: This situation is more common during flowering. At this time, there is already a lot of nutrients needed, and if you don't pay attention to supplementation, it is likely to cause the leaves to turn yellow.

2) Solution: Some fertilizers need to be sprayed, such as potassium dihydrogen phosphate solution. It not only contains nitrogen, phosphorus, potassium and other basic elements that fight spring, but also some trace elements. Spray on the leaves, once every half a month.

3. Deal with rotten roots.

1) Specific causes: For example, root rot may also cause the leaves to turn yellow. The most likely cause of root rot is too much standing water, or too much fertilizer.

2) Solution: Scrape off the rotten part and a small part around it with a knife, and apply some tobuzin. Wait until the incision is completely restored before covering the soil. After that, you should also pay attention not to water too much, and do not apply fertilizer with too much concentration and high concentration.

4. Pest control.

1) Specific causes: After the insect infestation, it may also endanger the leaves and make them turn yellow.

2) Solution: If the number is small, manual insect removal can be done. If the quantity is large, spray the corresponding agent.

The causes and solutions of potted lemon yellow leaves are as follows:

1. Yellow leaves are caused by excessive watering, which is characterized by no obvious changes in the old leaves and yellow leaves in the young leaves. This should be controlled immediately, and the usual watering should be done after drying, which is conducive to the growth of the root system and is not easy to cause root rot and death;

2. Yellow leaves caused by lack of water and drought, which are characterized by the first yellow leaves from the bottom up, if the lack of water for a long time, the whole plant will be yellow leaves, or even die, and should be watered in time;

3. Yellow leaves caused by excessive fertilization or high concentration are characterized by thick young leaves, shiny, and uneven, so fertilizer, cultivation and watering should be controlled;

Zheng Kai 4, fertilizer insufficiency, low fertilizer concentration, and the interval between application of slag fertilizer is too long to cause yellow leaves, which is characterized by.