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Use some (compound fertilizer) to grind powder and mix water, water from the side of the pot, don't water too much. Water once a month or so. Put it in a place where the sun is shining but not too strong, and it is not windy.
Or buy some reference books to read.
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This is mainly due to the presence of lime powder in the soil or the time for fertilization. In the process of growth, the leaves often turn yellow, which is mostly caused by improper cultivation management. Too much water, too little sunlight, too much or too little fertilizer will cause yellowing of leaves, but the yellowing situation is different, and the causes should be carefully observed and analyzed, and corrected.
1.Improper watering: The young leaves are dark yellow and dull, the old leaves have no obvious changes, the branches are small yellow-green, and the new shoots are shrunken and not long, indicating excessive watering.
Depot the flowers, put them in a ventilated and cool shade, and dry the soil ball before putting them back into the pot. The yellow of lack of water is different from the yellow of water, the yellow of lack of water is the withering and dry leaf tips or edges, and the old leaves are withered and yellow from the bottom to the top, but the growth of new leaves is relatively normal. Pay attention to watering not dry or watering, watering is enough, watering can be thorough.
2.Improper fertilization: fertilization should be applied diligently with light fertilizer, fertilizer with compound fertilizer is better, hole application, watering can be, do not apply unrotted organic fertilizer or large doses of chemical fertilizer, otherwise it will burn the root system, resulting in wilting and death of plants.
3.Viral yellow leaves, this symptom is mainly caused by the invasion of the roots, branches and leaves by the virus, the leaves are not stretched, and accompanied by yellowing, lifeless symptoms. You can spray virus grams, gram poison dew and other prevention and control, but also pay attention to maintenance and management, strong plants will generally not be harmed.
4.When changing the pot and soil, there is no good technology, although it is relatively simple to change the pot and soil, but the specific should be done so that the root system and the soil are closely combined, you can gently pierce or use a thin wooden stick to make a little solidification, in the application of bottom fertilizer to apply rotten, it is best to leave the root system, do not contact directly. And immediately after changing the pot, water thoroughly, first place it in a cool place to maintain, the second watering should be carried out when the pot soil is slightly dry, and then it should be watered between dry and wet.
There is no need to fertilize again in the short term after repotting, and it is advisable to fertilize again after at least three weeks. 5.There are problems with the soil to be replaced, such as lime powder or too acidic.
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Symptoms The young leaves are dark yellow, no luster, the old leaves do not change significantly, the branches are thin and yellowish-green, and the new shoots grow abnormally atrophied, which indicates excessive watering.
Treatment method It is necessary to put the plants unpotted in a ventilated and cool place, and then put them back into the pot after the soil mass is dried.
There is a difference between too little water and too much water, the yellow with less water is dry and withered at the leaf tips or edges, and the old leaves are yellow and fall off from the bottom upwards, while the growth of new leaves is relatively normal.
When watering, pay attention to "do not dry and do not water", and watering should be thoroughly watered to ensure sufficient moisture.
In the early stage of growth, it is best to apply light fertilizer frequently, mainly with the application of compound fertilizer, and the method of hole application or watering is adopted.
Do not apply unrotted organic fertilizers and large doses of chemical fertilizers, which can burn the root system, causing wilting and death of plants.
Symptoms This symptom occurs when the roots and branches of the moon season are attacked by the virus, and the leaves appear to be unstretched and yellowed, appearing to be lifeless.
Prevention and control can be sprayed with solvents such as virus grams and gram poison dew, but it is necessary to focus on comprehensive maintenance and management, and strong plants will have strong resistance.
Although the work of changing pots and soil sounds very simple, it is not easy to achieve a close combination between the root system and the soil, you can use thin wooden sticks and other help to calm or gently solidify, and choose rotten fertilizer for the application of base fertilizer, try to stay away from the root system and avoid direct contact with the roots.
Immediately after changing the pot, the water should be watered thoroughly, maintained in a cool place, and watered a second time when the potting soil is slightly dry, and then the watering principle of "no dry, no watering" should be followed as well.
Fertilization is not required for a short time after repotting, and should be applied again at least three weeks later.
In terms of soil change, if there is lime powder in the soil or it is too acidic, it will also cause the leaves to turn yellow. If you don't want to make your own planting season become a "yellow-faced woman", then follow the above aspects to carry out effective maintenance and management, and you will definitely let the green re-dye all over the branches and leaves.
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Yueji is known as the queen of flowers, and I believe that many flower friends will put a pot at home and wait for the moment when its flowers bloom. But like other plants, it suffers from a variety of problems, such as the most common yellow leaves. Today, Huahua will introduce to you how to solve the problem of yellow leaves in the moon.
1. Sunburn caused by excessive sunlight.
There is no obvious change between the new and old leaves of the sunburned moon season, but the young leaves turn yellow and lose their luster. The small branches also begin to slowly turn yellow, and this phenomenon is caused by the sun's exposure!
At this time, we have to move the moon season to a cool and ventilated place immediately for rescue. You can also loosen the surrounding soil so that the roots can breathe to prevent root rot, so that the recovery will be very fast.
2. It turns yellow without watering for a long time.
If you don't water for a long time, the leaf tips or leaf edge cracks will start to dry out and slowly wither, but the new leaves will grow more normally. However, if the lack of water is too long, the whole plant will turn yellow.
Before it dies, we must water it in time, and then move it to a semi-shaded and ventilated place, and never fertilize, otherwise it will make matters worse, thereby speeding up the death of the moon season.
3. Yellow leaves caused by excessive fertilization.
Once too much fertilizer is applied in the moon, the young leaves will become very thick and shiny, with a bumpy surface, but the tips of the leaves will appear dry brown, and the old leaves will begin to turn yellow or fall off.
At this time, the fertilization should be stopped, and if the source is serious, the excess fertilizer should be washed away with water, but if the situation is more serious, it is recommended to change the soil immediately to alleviate it.
4. Overwatering and yellow leaves.
If you water too much, the edges of the old leaves will turn yellow and wither, the young leaves will begin to wither, and the branches will gradually turn yellow, so that they will not shrank for a long time.
In the season when the water is too yellow and yellow, you should stop watering immediately and put it in a cool and ventilated place. Wait until the surface of the potting soil is dry before watering, and remember not to fertilize during this period, otherwise the roots of the plant are very easy to rot. Or you can depot it, and then put it in a cool and ventilated place, and wait until the soil is dry for seven or eight minutes.
5. Insufficient nutrition and yellow leaves.
If there is no fertilization for a long time, the lack of nutrients will cause this phenomenon, first from the young leaves, young stems begin to turn yellow, and the old leaves slowly turn from green to yellow. In severe cases, the whole bead will turn yellow, which will cause the plant to die!
For the month of this situation, it is necessary to apply an appropriate amount of additional fertilizer, but do not use too much at a time, otherwise the roots of the plant will be burned out!
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Causes and prevention of yellowing of leaves of Yueji trees: 1. Waterlogging is manifested as yellowing and falling off leaves, wilting branches, and rotting part of the root system. It smells of sake lees.
For the seriously damaged plants or waterlogging is difficult to eliminate, should be re-cut and excavated, raised to the ground and then planted, the light damage can be used at the base of the plant to pile the soil, stimulate the root neck to produce adventitious roots, so as to alleviate the purpose. 2. Leaf spot diseases and powdery mildew caused by pests and fungi cause a large number of leaves to fall off, affecting the formation of flower surface, and in severe cases, the leaves cannot photosynthesize and die. The germ begins to spread from the end of May to the beginning of June, and the peak incidence is from July to August during the hot and rainy season.
From the end of May, the baume to the doshiite sulfur mixture is sprayed once a week 2 to 3 times in a row. From July to August, if there are signs of a serious outbreak, spray 500 times of 40% Fumei arsenic wettable powder, once a week, 3 times in a row, which can be effectively prevented. If there is a lot of rain, the number of spraying should be increased accordingly.
The most harmful insect pests are the dried pests, the longhorn beetle. From mid-June to July, pruning the branches that are harmed by the larvae of the longhorn beetle is one of the key measures for the prevention and control of the longhorn beetle, if this link is not grasped, the larvae will eat into a trunk, which will increase the difficulty of control. Check the tree body before and after the autumn equinox and Qingming Festival, inject 5 to 10 times the human insect hole with 80% dichlorvos emulsion, and then seal it with mud to kill the larvae of the longhorn beetle.
Once other leaf-eating pests are found, they can be sprayed with 800 times the monocrotophos agent to kill eggs and larvae, and effectively control leaf-eating pests. 3. Fertilizing leaves yellowing, few flowers, small flowers and weak branches is a manifestation of lack of fertilizer. Fertilizer is applied to the elements that it is lacking, and other element fertilizers are applied at the same time to improve the utilization rate of the element.
Foliar fertilization should be carried out when there is a serious deficiency of an element, and the root system is damaged, or trace elements need to be applied, and its concentration should be mastered. Fertilize in the evening and spray from the underside of the leaves. In order to improve the utilization rate of fertilizer, phytovixin can be added to promote the plant to return to normal as soon as possible.
Weak plants should be used in small quantities and frequently, and thin fertilizer should be applied frequently to prevent fertilizer damage. Under normal circumstances, there are many flowers in the month and a large amount of fertilizer is required. Basal fertilization should be applied after winter pruning and before budding.
Sufficient organic fertilizer should be applied, and the fertilization range should be on the periphery of the crown diameter and the depth should be 20 to 30 cm. In the growing season, it is necessary to top dressing many times, and it is appropriate to top dressing during the leaf development period, after flowering, and in early August, and the top dressing is suitable for available nitrogen, phosphorus and potassium. When the leaves are spreading, the new roots grow in large quantities, and a small amount of fertilizer should be applied without thick fertilizer, so as not to affect the growth of new roots.
At the end of August, top dressing should have less nitrogen fertilizer and more phosphorus and potassium fertilizer to prevent autumn shoots from being too vigorous and subject to frost. Top dressing depends on the size and growth of the plant, generally 100 to 150 grams per plant each time is appropriate.
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The yellowing of the leaves of the moon flowers may be caused by improper watering and rotten roots or lack of water and yellowing, or it may be the wrong fertilization of thick fertilizer to burn the roots or lack of nutrients, the temperature is too high or too low will also make the leaves yellow, lack of light for a long time or suffer from pests and diseases, it will also make the leaves of the moon flowers yellow, and it is necessary to prescribe the right medicine to make them healthy.
1. Improper watering.
Too much watering will make the potting soil too moist and cause water accumulation, which will cause the leaves of the flowers to turn yellow, and too little watering will also make the flowers lack water and have yellow leaves. Usually it should be dried and watered thoroughly, generally once every 3 or 4 days.
2. Wrong fertilization.
Excessive fertilization or too little fertilization will also make it appear yellow leaves, too much fertilization will lead to accumulation of fertilizer, burning roots and rotting, watering to dilute the thick fertilizer, insufficient nutrients will also make it lack of fertilizer and yellow, to apply thin fertilizer diligent 2 3 weeks of fertilization once.
3. The temperature is uncomfortable.
Temperature discomfort is also one of the reasons for the yellowing of the leaves of the moonflowers, too low temperature will make the leaves yellowed due to frost damage, and the temperature is too high will make the leaves evaporate too much water and appear yellow, so it is necessary to control the growth temperature at about 18 20 in the environment for maintenance.
4. Insufficient light.
The moon flower likes light, if it is placed in a dark and lightless area for a long time during maintenance, it will also make it appear yellow due to insufficient light, and it should be placed in a sunny position, so that the moon flower receives about 4 6 hours of light and healthy growth, to avoid strong light sunburn.
5. The impact of pests and diseases.
During the maintenance, the moon flowers suffer from the harm of pests and diseases, which will also affect their growth and health and the appearance of yellow leaves, so it is necessary to remove the diseased leaves and yellow leaves in time, and then spray them with virus grams and other fungicidal solutions for prevention and control, so that the moon flowers slowly recover their health.
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The key depends on how it turns yellow? If you are from Xin Yi Zhai, and it doesn't take long for you to let him bask in the sun, it is normal for it to turn yellow, because its water has not had time to transport it, and you have to spend some time in the shade.
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It is not difficult to raise the moon flowers, but it is not so easy to raise them well, there may be no problem at the beginning, but after a long time, you may find that you have some small problems with the moon flowers, such as the yellowing of the leaves is a more common trouble, then, what is the matter with the yellowing of the leaves of the moon flowers, what should we do when we see the yellowing of the leaves of the moon flowers?
Pictured: Blooming moon flowers.
1. Improper watering.
If you find that the young leaves of the wide moon flowers are dark yellow and dull and the new shoots grow and shrink, but the old leaves do not change significantly, it means that your moon flowers are overwatered and cause yellow leaves, on the contrary, if the new leaves are relatively normal but the old leaves gradually wither yellow from the bottom up, or even fall, it is caused by lack of water.
Solution: At this time, watering more appropriately, or pay attention to water control, watering should pay attention to follow the watering principle of "no dry, no watering", watering to top, not to dry all the time, to ensure that the water is sufficient but not to accumulate water is the best.
Pictured: Yellowing of the leaves of a potted plant in the moon season.
2. Improper fertilization.
Improper fertilization of moon flowers will also cause yellow leaves, if the fertilization is too thick or the application of unrotted organic fertilizer, it will cause "burning roots" to cause yellowing, and the yellow leaves will not bloom without fertilizer for a long time.
Solution: It is best to apply light fertilizer frequently in the early stage of growth, mainly to apply compound fertilizer, and use the method of hole application or watering. Do not apply organic fertilizers that are not ripe and contain large doses of chemical fertilizers, which can burn the root system and cause wilting and death of plants.
3. Pests and diseases affect yellow leaves.
If the flowers are attacked by pests and diseases, or the roots and branches are attacked by viruses, they will also show yellow leaf symptoms, and the leaves will appear unstretched and accompanied by yellowing, and appear to lack vitality.
Solution: Solvents such as virus grams and gram poison dew can be sprayed, but comprehensive maintenance management should be the mainstay, and the sturdy plants will have strong resistance.
Pictured: The leaves of the potted plant are yellowing and falling off.
4. Potting soil compaction.
The soil for planting the moon flower should be loose and fertile, if the soil is compacted, it will not be good to drain, and it will also affect the respiration of the moon flower root system, too hard soil will cause the moon flower root system to "suffocate", which will lead to the death of yellow leaves and even moon flower plants.
Solution: If the soil compaction is serious, it is best to change a pot of soil, in the process of changing the soil, we must pay attention to the fact that there can be no lime powder or too acidic substance in the soil, otherwise it will also cause yellow leaves of the moon flowers, it is best to use some neutral loose soil, water should be watered thoroughly after changing the pot, and then maintained in a cool place, not dry and not watered, and can not be fertilized in a short time, and then fertilized after the moon flowers are re-slowed seedlings.
Pictured: Beautiful bonsai in the moon season.
Tips] There are many reasons for the yellow leaves of the moon flowers, in addition to the above ones, there are also too high or too low temperatures, insufficient light, poor air circulation, etc., all of which require us to carefully observe and distinguish the moon flowers, and take corresponding measures immediately after finding the problem, so as to make the leaves of the moon flowers green and not yellow.
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