What if the leaves of the family green plants turn yellow? The solution to the yellowing and lightlessness of green plants

Nowadays, many people like to keep some green plants at home, and the editor is no exception, which can not only fill the home with natural colors, but also purify the air. But some people found that the leaves of the green plants at home gradually yellowed and lost their lustre. Why? How to solve it?

1. Caused by iron deficiency

Woody flowers in greenhouse, due to great changes in soil fertility conditions, often appear the phenomenon of yellow leaves, characterized by obvious yellowing of young leaves, lighter old leaves, yellow mesophyll and forming a typical network.

2. Overwatering or drought dehydration

The basin soil is too wet for a long time, which causes anoxia in the soil, causes some fibrous roots to rot, hinders normal respiration and absorption of water and nutrients, and causes leaves to turn yellow and fall off. After the injury, the young leaves become light yellow, and then the old leaves gradually turn yellow; the cultivation of flowers leak watering or long-term watering half of the waist (that is, wet and dry), affecting nutrient absorption, but also easy to cause leaf color dim and dull, leaves wilting and drooping. First, the lower old leaves aged, and gradually withered and yellowed off from the bottom up.

3. Lack of sunlight or exposure

If the sun-loving flowers are kept in shade or lack of light for a long time, it will cause the branches and leaves to grow, the leaves are thin and yellow, and they do not blossom or rarely bloom. Solution: we should pay attention to move the flowerpot to the sunny place; shade-loving plants exposed to the strong sun can easily cause the flower leaves to wither slightly, the leaf edge will wither, and the sunrise part of the leaves will appear macula.

4. Soil is alkaline or acidic.

Most areas of the square contain more saline and alkali in soil and water, and plant flowers in acidic soil, such as gardenia, rhododendron, jasmine, Milan, etc., due to the lack of soluble iron and other elements that can be absorbed by them, the leaves will gradually turn yellow; the southern red loam soil is sour and magnesium is easy to lose, and planting flowers and trees that are tolerant to alkali or like slightly mute soil, such as oleander, yellow poplar, Yingchun, etc., are often prone to chlorosis and yellowing between the veins of old leaves.

So how can we solve the problem of yellowing and lightlessness of plant leaves?

1, pay attention to the sun: if the rich tree likes high temperature, humidity and sunlight, it can not be shaded for a long time. Therefore, it should be placed in a sunny place indoors during maintenance and management. When placing old rich trees, the leaves must be directed toward the sun. Otherwise, because the leaves tend to light, the whole branches and leaves will be distorted. Shade-loving plants should avoid direct sunlight accordingly.

2. Pay attention to watering: the first principle of watering is to be wet rather than dry, followed by "two more and two less", that is, more watering in summer and less in winter; large and medium-sized plants with exuberant growth should be watered more, and small plants newly planted in pots should be watered less.

3. Pay attention to fertilization: take the rich tree as an example, it likes to fertilize flowers and trees, and the demand for fertilizer is greater than other common flowers and trees. When changing the basin every year, the proportion of fertile soil can account for 1 / 3 or even more. Fertile soil comes from a wide range of sources, which can be collected from deciduous humus soil of broad-leaved trees and mixed with a little pastoral soil and mixed bean cake dregs.

4. Pay attention to the soil: acidic soil should be selected when planting soil with partial alkali, or 0.2% ferrous sulfate solution should be poured at intervals, and 0.1%-0.2% potassium dihydrogen phosphate solution should be poured alternately. Soil partial acid can pour some diluted water of ferrous sulfate or aluminum sulfate, or add a small amount of ferrous sulfate, aluminum sulfate, humic fertilizer, sulfur powder and so on.

In addition, it should be noted that the ability of plants to purify the air is limited. In addition to formaldehyde, the effective method is to often open windows and ventilation with activated carbon substances such as coconut charcoal to control formaldehyde. The main raw materials of coconut charcoal are in addition to activated carbon and coconut shell. after high-temperature activation, carbonization treatment, while loading photocatalyst, carbon fiber. Its adsorption capacity of organic gas is 5 times higher than that of ordinary activated carbon, and its service life is longer than that of activated carbon, so the effect of treating formaldehyde is ideal.

What if the leaves of asparagus turn yellow? Causes of yellowing of asparagus leaves and its solution

Asparagus is a kind of small green plant on the desk, tall and straight and fresh is the most favorite feature of everyone, but the leaves will turn yellow if there is a little carelessness in the process of planting asparagus, which is also the longest phenomenon encountered by flower friends who cultivate asparagus. What about the yellowing of asparagus leaves? In fact, there are many possible reasons for the yellowing of asparagus leaves, the most important factors are light, watering, fertilization, or asparagus poisoning and so on. The editor summarized several reasons and solutions for the yellowing of asparagus leaves. I hope it will be helpful to you.

1. The light is not comfortable. Asparagus is a kind of plant that avoids dry wind, likes semi-shade and is slightly tolerant to shade, so it is not suitable to be exposed to strong light, especially in summer, we should pay more attention to avoid direct sunlight, otherwise it will cause branches and leaves withered and yellow and even plant necrosis. The solution is also very simple: move the asparagus to a ventilated and cool place and spray some fog around the branches and leaves to increase its humidity.

2. Watering is wrong. Asparagus likes to be wet and afraid of waterlogging. When watering, we should pay great attention to the amount of water. Generally, it is appropriate for the basin soil to maintain 20% humidity, that is, the water poured into the basin quickly seeps into the soil and the soil surface does not accumulate water, so it is best not to dry or water in the planting process, and the water is watered thoroughly. If there is too much water, it is necessary to stop not watering, and spray more fog around the branches and leaves to moisturize asparagus.

3. Improper fertilization. Asparagus likes to be rich in humus, well-drained soil, can adopt the principle of multiple fertilization and a small amount of each time, and the use of mature fertilizer. If the lack of fertilizer, fertilizer is too thick or the application of immature fertilizer, will cause asparagus leaves yellowing, shedding and even withered. If it is due to improper fertilization caused by asparagus leaves yellowing, can be taken to change the basin soil to solve. It is worth noting that it is not suitable to apply fertilizer in winter low temperature period and summer high temperature period, and fertilization should be controlled after plant setting.

4. Gas poisoning. Asparagus is very afraid of smoke and dust. if it is often attacked by harmful gases such as smoke and dust, asparagus will be poisoned with yellow branches and leaves. If this happens, the flowerpot should be moved away from the original position in time, and the work of foliar sprinkler and dust removal should be increased.

5. Insect pests. Shell insects are the most common pest in asparagus culture. When shell insects are found, they should be wiped off with wet cloth strips in time. In serious cases, they should be bought at the drugstore for prevention and control, and the pot soil should be changed in time. When changing the basin soil, the old residual roots can be cut off to reduce nutrient consumption.

6. Winter management is not in place. Asparagus culture should keep it at a certain temperature, especially in the sunny position in winter. If asparagus is placed in places that lack light, poor ventilation and cold for a long time, it is easy to make the leaves of asparagus withered and yellow. The temperature of asparagus culture in winter should not be lower than 12 ℃, and it should be placed in a place with good light, and watering can be reduced appropriately.

7. Others. In addition, the reason for the yellowing of asparagus leaves may also be that asparagus culture pots are placed next to organic items such as heating bags, air conditioners and televisions, which can also cause asparagus leaves yellowing and shedding because of high radioactivity, and the stems will dry up over a long period of time, so pay attention to it when placing flowerpots in asparagus culture.

Asparagus is a relatively weak plant, and growers need to take good care of it in daily maintenance. If the leaves of asparagus turn yellow because of insufficient nutrition, you can also use a "folk prescription" to improve the nutrition of asparagus-pouring white sugar water to asparagus to ensure that your asparagus can grow very luxuriantly.

The leaf of asparagus is yellow, which not only affects the healthy growth of asparagus, but also affects the aesthetic effect of indoor furnishings and spoils the taste of the owner of the house. therefore, the editor summarizes the above reasons for the yellowing of asparagus leaves and solutions hope to exchange more planting experience with the majority of flower friends.

The reason for the yellowing of white palm leaves, how to deal with the yellowing of white palm leaves

White palm is a common green plant, but it is easy for the leaves to turn yellow when planted at home. There are many reasons for the yellowing of white palm leaves, the main reason is caused by stagnant water. Many flower friends in the process of breeding white palm leaves will appear yellow situation, then white palm leaves yellow how to do? Next, let's take a look at the nine major causes of yellowing of white palm leaves and their solutions.

Cause analysis and treatment of yellowing of white palm leaves

The main results are as follows: 1. Environmental mutation leads to yellowing of white palm leaves: the cause of environmental abrupt change is that the soil, temperature, humidity and light suddenly change too much, or the leaves turn yellow due to the need to slow down the seedlings when the roots are injured in the basin.

Solution: reduce the degree of change in the environment and wait for it to adapt.

2. Too much watering leads to yellowing of white palm leaves (water yellow): although white palm can be hydroponically cultured, it does not mean that soil culture needs a lot of frequent watering, especially when the amount of watering is small and the number of times is large, the water is easy to stay at the joint of the rhizome and cause the growth point to rot to death. It shows that the tender leaves are dark and yellow, and the new shoots are shrunk.

Solution: in this case, the number of watering should be reduced, and each time the water in the matrix is slightly dry and then watered again.

3. Soil alkali leads to yellowing of white palm leaves: White palm likes acidic soil. If planted in the north, due to alkaline water quality and soil quality, long-term application will lead to gradual fading, yellowing and even shedding of leaves.

Solution: the easiest way is to pour fermented rice washing water or Rain Water.

4. Exposure leads to yellowing of white palm leaves (burning yellow): strong direct sunlight is easy to cause withering of leaf tips and edges, and macula appears in the sunny part of leaves.

Solution: just move to the shady and ventilated place.

6. Lack of sunlight leads to yellowing of white palm leaves (lack of light yellow): White palm needs better light in winter and early spring, do not shade.

Solution: gradually shade the sun when the light is getting stronger, and if you enjoy it in the shade, you can't put it in the sun directly. Otherwise, there will be discomfort due to rapid changes in the environment, such as wilting, yellow leaves, and even death.

7. Temperature discomfort leads to yellowing of white palm leaves: the growth of white palm requires a semi-shady place, and leaves are easy to yellowing when the temperature is lower than 5 ℃ or higher than 35 ℃. The leaves are dull and lose their luster. Long-term cryogenic liquid will cause withering and yellowing of the ground.

Solution: adjust the temperature, special circumstances can be moved to the air-conditioned room!

8. Excessive fertilization leads to yellowing of white palm leaves (fat yellow): too much fertilization shows that the old leaf tip turns yellow and withered, and the new leaf is thick and shiny, but the concave and convex does not stretch.

Solution: you can sprinkle a layer of cabbage or radish seeds on the surface and pull them out a few days after emergence to consume nutrients.

9. Diseases and insect pests lead to yellowing of white palm leaves: if harmful mites are harmful, the leaves show bad symptoms such as wilting, gloss desalination, yellow blight and so on.

Solution: special mites can be sprayed for control, such as triclofenac, Nisolang, pyridaben and so on.

Experience of white palm maintenance

The main results are as follows: 1. White palm grows fast and needs a large amount of fertilizer, so liquid fertilizer must be applied every 1-2 weeks in the growing season.

2. Provide sufficient water, always keep the basin soil moist, and spray water to the leaf surface and ground during the high temperature period.

3. The amount of water should be reduced at the end of autumn and winter to keep the basin soil slightly moist.