What to do if the leaves of the plant turn yellow in winter, what to do if the leaves of the plant t

The yellowing of plant leaves may be due to calcium deficiency, and calcium fertilizer can be sprayed on the foliar surface to enhance the toughness of the leaves, and it is not easy to have dry yellow leaves.

Like the kind of jackfruit that has just emerged is very fragile and needs careful care, water and temperature are especially important and must be suitable, the temperature should not be too high, and the water should not be watered too much, and it must shine more in the sun to allow its leaves to fully photosynthesize. Yellow leaves do not need to be picked, you can apply high-efficiency slow-release fertilizer to it, the kind of small granular is better, you must follow the instructions for use, not too much, otherwise it will burn seedlings, this fertilizer is sprinkled on the surface of the soil and do not need to care about it, 3 months later, you can look at the situation and then add it appropriately.

In the process of pineapple growth, if it encounters natural environmental influences such as high temperature, low temperature, drought, etc., or when pests and diseases, excessive application of fertilizers and pesticides cause fertilizer damage, the leaves will turn yellow and even the whole plant will die.

Pineapple is a tropical perennial herbaceous crop, with the change of seasons, its leaves in the winter yellowing or even falling off is a very normal physiological activity, under normal circumstances, the next day can send out new roots and new leaves.

Pineapples have their own special growth habits: they usually take new roots after about 1 month at a temperature of 22 to 24. The suitable temperature of root growth is 29-31, and the growth is stopped when it is lower than 5 or higher than 43. Roots begin to grow in March and grow rapidly as the temperature increases.

Growth peaks from late May to July, slows down after October, and near-surface root dies from December to February due to cold and drought. Spring warm leaves begin to extract, May to July leaf color is dark green, growth is faster, winter basically stop extraction, leaf color turns red and yellow, such as cold damage leaf tissue dehydration and green, will dry up.

There are 2 reasons why pineapple leaves turn yellow, one is due to watering problems and the other is fertilization problems.

Too much water, spinach watering more will cause the root system to lack of oxygen resulting in yellow leaves, generally watering can be inserted into the soil with chopsticks to see whether the spinach root part is short of water, as long as the soil is moist, do not need to water.

In addition, when there is a lack of trace elements such as iron, manganese, boron and zinc, yellow leaves, small leaves and soft rot will also occur, which can be solved by spraying spinach special foliar fertilizer in the later stage of growth.

If the bottom leaves of spinach grow new roots from the leaf axils, the leaves turn yellow, which is a normal phenomenon and is the metabolism of spinach itself.

Causes and solutions to the yellowing of plants in winter.

Normal metabolism: In winter, the plant will lose its leaves to store nutrients; Lack of nutrients: if the nutrients are not sufficient for a long time, there will be yellow leaf atrophy and other diseases, do not fertilize immediately during the dormant period, and fertilize once before dormancy; Improper watering:

Winter is dry, it should be watered in time, but not too much; High temperature: If you put the plant near a heater or other equipment, you will also have yellow leaves.

Causes and solutions to the yellowing of plants in winter.

Normal metabolism. This is a normal situation, so don't worry too much, just dispose of the yellow leaves, and it will return to normal after a while.

Flower. Lack of nutrients.

This is the same as people, if the nutrients are not sufficient for a long time, people will also be thin and shriveled. Therefore, when the plant does not have enough nutrients for a long time, the leaves will also appear yellowing. At this time, nutrients should be supplemented according to the state of the plant.

If it is a dormant plant, it is not recommended to fertilize it immediately, or even to fertilize it. If the growth is slow, a small amount of fertilizer can be applied, and fertilization should be strengthened during the growth period.

Flower. Improper moisture.

Too much or too little water at any time will cause the leaves of the plant to turn yellow. It is more serious in winter, because the environment in winter is dry, and then the potting soil is too dry, so it is difficult not to yellow; In winter, when the temperature is low, the loss of water will be greatly reduced, and if you need to water too much at this time, the soil will be in a state of excessive moisture for a long time, which will also easily make the leaves yellow.

The temperature is too high. When placing plants at home, be sure not to be close to the air outlets of heating and other equipment, otherwise it is easy to cause yellowing of plant leaves.

Flower. The temperature is too low.

Plants have a minimum temperature limit, the temperature is already below the range that the plant can tolerate, its leaves are prone to yellowing, and even the whole plant can be frostbitten and freeze to death. Therefore, friends must understand what the temperature range of the plant can withstand when maintaining.

There are many reasons why the leaves of potted plants turn yellow, some are caused by one reason, some are caused by a variety of reasons, and most of them are caused by improper cultivation management. In the process of daily maintenance, it is necessary to carefully observe and analyze the causes in order to prevent and control them in a targeted manner.

1. Water yellow. Long-term watering, potting soil water accumulation for a long time, resulting in soil hypoxia, so that part of the root system rot, water absorption, fertilizer absorption ability weakened. It is manifested in the young leaves are dark yellow and dull, the apical center of the new shoots is atrophied, and the branches and stems are small and yellow-green.

In this case, the soil should be loosened, watering should be controlled, fertilizer should be stopped, and the heavy ones can be depotted, and the soil balls should be dried in the shade and then potted.

Second, dry yellow. If there is no watering for a long time, or the watering is too little, the leaves are yellow or brown ends, brown edges, and the old leaves are yellowed and fall off from the bottom up. However, the new leaves generally grow normally, and when this phenomenon occurs, water should be replenished so that the soil is no longer short of water.

3. Fat yellow. The leaf yellow caused by excessive fertilization or excessive concentration, especially partial nitrogen fertilizer, is manifested as the new leaves are thick and shiny, but the leaf surface is uneven and unstretched, and the old leaves gradually turn yellow and fall off. At this time, the fertilization should be stopped and the amount of watering should be increased appropriately to dilute the nutrients, the potted flower fertilizer water is insufficient or the pot is small, the root system in the pot is senescent or too dense, and the leaves of the flower plant will become thinner and yellow, at this time the pot should be changed and the soil should be changed, usually when the rain arrives at the beginning of summer.

Fourth, lack of fat yellow. Potted flowers are only watered for a long time without watering fertilizer, or not changing pots for many years, the roots are clumped, and the plants can not get fertilizer, so that they can not be fertilized.

The leaves are yellow, in addition to changing the pot in time, thin fertilizer should be applied frequently.

Fifth, burn yellow. Potted flowers that like shade and dampness, such as spider plant, evergreen, hosta, etc., such as strong direct sunlight, the leaves also have brown ends, brown edges, this phenomenon occurs, the pot can be placed in the shade.

Sixth, alkali yellow. Potted acid-loving flowers, such as camellia, Milan, smile, rhododendron, jasmine, etc., often cause greening loss and yellowing due to soil alkaline reaction. It is manifested in the veins that start from the new leaves of the branches, and the leaf veins, especially the main veins, remain green, and the yellow-green phenomenon is very obvious. With the aggravation of yellowing, the leaf veins gradually lose green, and then the whole leaf turns white, the leaf edge is scorched, the leaf withered, and in severe cases, the branch tip withered.

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Flowers appear yellow leaves, depending on the characteristics of their occurrence, there are the following situations:

One is water yellow. Caused by over-frequent watering, it is characterized by no obvious change in old leaves and yellowing of young leaves; This should be done with immediate water control;

The second is dry yellow. Caused by lack of water and drought, it is 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, and even die, should be watered in time;

The third is fat yellow. Caused by excessive fertilization or high concentration; It is characterized by thick, shiny, and uneven young leaves; Fertilizer, cultivation and watering should be controlled;

Fourth, hungry yellow. It is caused by insufficient fertilizer, low fertilizer concentration, and long fertilization interval; It is characterized by the first yellow of young leaves and young stems, and if you do not fertilize in time after seeing this phenomenon, it will also cause the whole plant yellow leaves or even die; For flowers lacking fertilizer, avoid applying a large amount of thick fertilizer at one time, so as not to cause root burning;

Fifth, iron deficiency yellow leaves. Due to the great change of soil fertility conditions, the phenomenon of yellow leaves often occurs in greenhouses, which is characterized by obvious young leaves, light old leaves, yellow mesophyll, green leaf veins, and the formation of a typical network. It can be solved by applying ferrous sulfate aqueous solution, and the method is: 7 parts of cake fertilizer, 5 parts of ferrous sulfate, and 200 parts of water are prepared into multiple liquid water.

Potted plants are prone to yellowing of their leaves during the maintenance process, probably because of too much or too little watering, and the leaves of the plant will turn yellow. Improper fertilization is also one of the main reasons, too much fertilization, especially nitrogen fertilizer, is most likely to cause yellowing of leaves, mainly manifested in old leaves. If the fertilization is insufficient, the leaves will turn yellow if the nutrients are not available.

However, it may also be caused by too much light, and if the leaves are exposed to strong light for a long time, they will be sunburned and appear yellow.

What is going on with the yellowing of the leaves of potted plantsPotted plants are potted plants that express the scenery of mountains and rivers. There are many types of potted plants, and Puna Jiantong can be cut and arranged according to the ornamental view of potted plants, which can be according to the tree type, number of trees, tree height, tree species, ornamental and style. If the leaves turn yellow, it may be caused by improper maintenance.

Common causes of yellowing of leaves of potted plants1, too much or too little watering, the leaves of plants will turn yellow. If too much potting soil has stagnant water, the roots will not be able to absorb oxygen, and the roots will rot due to lack of oxygen, and the young leaves will turn yellow. If you water too little, the water ** is insufficient, and it will turn yellow due to the lack of leaves.

2. Improper fertilization is also one of the main reasons for the yellowing of leaves. Excessive fertilization, especially nitrogen fertilizer, is most likely to cause yellowing of leaves, mainly on old leaves. If the fertilization is insufficient, the leaves will turn yellow if the nutrients are not available.

3. The yellowing of the leaves of potted plants may also be caused by too strong light, especially in the middle of summer, when most plants can't bear it. If the leaves are exposed to strong sunlight for a long time, they will be damaged by the sun and appear yellow.

Potted plant leaves yellowing treatment methods and skills The best way to water potted plants is to be able to see dry and wet, that is, to water when it is dry, and to water it thoroughly when watering. If you water too much, put the potted plants in a well-ventilated high place, so that the water can flow out as soon as possible and evaporate as soon as possible. If it's too little, hydrate it in time and you'll recover soon.

If the fertilizer is excessive, it should be watered to dissolve the fertilizer as soon as possible, and in serious cases, the soil should be changed and the pot should be changed. If there is too little fertilizer, supplement it according to the specific growth situation. Move to a place with less light in time, pay attention to the best not to put it directly in a cool place, and slowly reduce the light.

How to prevent yellowing of potted plant leaves 1. Light: Lack of sunlight causes yellowing of plant leaves, so plant plants should be placed in a sunny place.

2. Watering: When watering too little or too much, the plant will not absorb water, and it will be due to yellowing or even falling off the leaves, so it should be watered properly.

3. Soil: When the soil is alkaline, the plant often shows that the old leaves and leaf veins turn green and yellow first, so it is necessary to ensure the suitability of the soil.

4. Fertilizer: For flowers lacking fertilizer, apply thin fertilizer frequently and water some alum water in a timely manner, and avoid applying a large amount of thick fertilizer at a time, so as not to cause root burning.

Most of the causes of gardenia yellow leaves are caused by improper management in the cultivation process, such as too much water or insufficient water, too strong or too weak sunlight, too much fertilizer or lack of nutrients. We can only solve the problem of yellow leaves by figuring out the causes of yellow leaves, but how can we know what specific causes of yellow leaves?

Gardenia (details).

1. Caused by excessive water: the leaves are yellow, the young leaves are dark yellow and have no luster, but the old leaves have not changed much, and the new shoots have shrunk but do not grow.

Solution: Place the flowers in a ventilated and cool place, and wait for the excess moisture in the soil to dry out on its own before putting them back in place.

2. Yellow leaves caused by insufficient water: dry yellow, mainly in disguise: the leaf sheath is withered, the old leaves are first yellow and finally fall off, and the growth of young leaves is not greatly affected.

Solution: Since it is caused by lack of water, of course, it is to replenish the water, but pay attention to a certain degree in the process.

3. Yellow leaves caused by too strong sunlight: burning yellow, manifested as leaf sheath or leaf edge wilting, and yellow spots will appear on sunny leaves.

Solution: Move the flowers to the shade.

4. Yellow leaves caused by lack of sunlight: lack of light yellow, because the flowers are hidden in a dark place for a long time, resulting in their inability to synthesize chlorophyll, and finally the leaves are yellow and fall off.

The solution: move the flowers to a sunny place.

5. Yellow leaves caused by overnutrition: the top of the new leaves appears dry brown, and the leaves are yellow and dull.

The solution: stop fertilizing.

6. Yellow leaves caused by nutritional insufficiency: the color of young leaves gradually fades, and finally yellow.

The solution: fertilize the flowers.

Starting from the two aspects of dehydration and poor ventilation, we will teach you to water properly, prune and thin branches in time, strengthen ventilation, and avoid the phenomenon of yellow leaves in the month.

There are several causes of yellowing.

Since 1: Drought and yellow, frequent watering and less watering in the early stage, normal management after recovery.

2: Waterlogging, remove rotten roots, change the substrate with high air permeability, normal management after recovery 3: shade yellow, more sun.

4: Sick yellow, try carbendazim pot, many diseases are effective.

5: Worm yellow, aphid, red spider, scale insect. According to the insects to buy pesticides spraying 6: fertilizer yellow, lack of fertilizer, foliar application of potassium dihydrogen phosphate, substrate application of compound fertilizer. Over-fertilization: change the substrate and remove the rotten roots.