Measures to solve the yellowing of leaves of Penglai pine

Although Penglai pine is afraid of high temperature, it likes warmth. It can effectively prevent yellowing of leaves when placed in a place with good sunlight scattering conditions.

Penglai pine drought tolerance is poor, watering should be in the alternate dry and wet watering to thoroughly, do not need too much. If the branches and leaves are too dense, and it is in the high temperature period in summer, it will also cause the leaves of Penglai pine to turn yellow. At this time, it is necessary to prune the branches.

The above is about Penglai pine leaves yellow reasons and solutions introduced, below we take a look at Penglai pine breeding methods.

What about yellow leaves?

The reason for the yellow leaves is light.

Light is a very important element for flowers, but also a knowledge, insufficient light or too strong light may affect the growth of flowers. Penglai pine is a sun-loving flower. If it is placed indoors for a long time and cannot be exposed to sunlight, its leaves will turn yellow. Once this symptom is found in pine trees placed in the shade, it should be moved to a sunny and ventilated place immediately.

soil

Another factor that causes the yellow leaves of Penglai pine is the soil problem. Although the soil requirements are not strict, it is best to have sandy soil rich in humus. If other reasons are excluded, the owner should see if the soil is qualified.

watering

Many friends who do not raise flowers may be a relatively difficult problem for watering. Grasping the amount of watering is a key factor in raising flowers. Penglai pine should be watered when the soil surface in the basin is dry, and must be watered thoroughly, not too much water can be caused, nor can it stop only half of the irrigation.

How to deal with yellow leaves

Although Penglai pine is afraid of high temperature, it likes warmth. It can effectively prevent yellowing of leaves when placed in a place with good sunlight scattering conditions.

Penglai pine drought tolerance is poor, watering should be in the alternate dry and wet watering to thoroughly, do not need too much. If the branches and leaves are too dense, and it is in the high temperature period in summer, it will also cause the leaves of Penglai pine to turn yellow. At this time, branch construction treatment should be carried out.

How much does a yellow leaf cost?

The price of Penglai pine is also more concerned by everyone. How much is a pot of Penglai pine? What about the yellow leaves in the breeding process? Let's find out how to do the yellow leaves of Penglai pine and how much a pot of Penglai pine costs.

1. What should I do if Penglai pine leaves are yellow?

The yellowing of Penglai pine leaves is generally caused by watering, fertilization, soil, sunshine and insect pests. Let's introduce them in detail.

1. Watering

Too much watering: the pot soil accumulated water for a long time wet, resulting in lack of oxygen in the soil, leading to partial fibrous root rot, thus water absorption, fertilizer absorption capacity weakened, causing tender leaves to become pale yellow, flowers and leaves gradually become dark yellow. After discovery should immediately control watering, stop fertilizing, and often loose soil, so that the pot soil permeability is good. Serious disease, the need to remove the entire land from the basin, placed in dry soil mound, so that water quickly seep out, to be drooping branches and leaves after recovery and re-planting into the basin.

Too little watering: or long-term irrigation of half water or leakage irrigation, so that the evaporation of water leaves is greater than absorption, resulting in water shortage, but also cause yellow leaves. Drought yellow is from the lower leaves gradually turn yellow withered off, serious when the petiole droop wilted. Discovered immediately after the flowerpot to shade, spray some water to the leaves, and pour a small amount of water. Later, as the stems and leaves gradually recover straight, and then gradually increase the amount of watering, if suddenly poured too much water at this time, it may cause cytoplasmic wall separation, protoplasm damage, and cause flower death.

2. Fertilization

Excessive fertilization: especially when excessive nitrogen fertilizer and lack of phosphorus and potassium fertilizer, it is easy to cause yellow leaves, which are characterized by hypertrophy of new leaves, uneven leaves, old leaves gradually becoming yellow and falling off, severe leaf tip drying, and even the whole leaf scorched yellow. Encounter this situation should immediately fertilize, increase the amount of watering, let the fertilizer flow out from the drain hole, or immediately pour the pot, remove part of the old soil, and wash the soil with water, replace part of the new culture soil, and then replant the plant into the pot.

Insufficient fertilization: especially long-term no nitrogen fertilizer or no change of pot soil, lack of nitrogen nutrition in the soil, resulting in thin branches and leaves, thin and yellow leaves, need to pour the pot in time, plant out, replace with a larger pot, load new loose fertile culture soil, re-plant it. After pouring water, put it in a semi-open place to slow down the seedlings. After it recovers, thin liquid fertilizer or compound fertilizer is applied.

3. Soil pH

Alkaline soil: planting acid-loving flowers in the north, such as camellia, orchid, Michelia, mast, osmanthus, because most of the soil in the north contains more salt and alkali, the above flowers and trees will gradually lose green and yellow due to lack of soluble iron elements that can be absorbed by flowers after a period of cultivation. At this time, can have intervals to pour 0.2% ferrous sulfate solution, while alternately pouring 0.1% potassium dihydrogen phosphate solution, so that alkali yellow can be cured, while potassium dihydrogen phosphate also contains phosphorus, potassium elements, conducive to flower bud differentiation and improve the quality of flowers.

Soil acid: southern China for red soil, soil acid or acid, soil magnesium easy to lose, leaves due to magnesium deficiency often show old leaves, veins first green yellow, can be applied calcium magnesium phosphate Evergreen will suffer, causing yellow leaves off; if the room temperature is lower than 5℃, most of the flowers like warm and cold will also suffer, leaves, flowers, fruits yellow, dry, easy to fall off. Therefore, 0.1% to 0.3% magnesium sulfate solution should be sprayed according to or after entering the room. For the improvement of acidic soil, attention should be paid to increasing the application of decomposed organic fertilizer and lime. A small amount of lime can not only neutralize the acidity of the soil, but also promote the decomposition of organic fertilizer.

4. Sunshine

Sunlight too strong: In summer, flowers that like semi-shade and fear high temperature and heat, such as asparagus, spider orchid, clivia, cyclamen, fuchsia, etc., are placed in direct sunlight for maintenance, which is easy to cause tender leaf buds or leaf edge withered coke or whole leaves yellowing. After discovery, they should be immediately moved to cool places with good ventilation for cultivation.

Sunlight deficiency: light-loving flowers if long-term indoor light deficiency maintenance will grow weak, thin leaves and yellow, do not bloom or rarely bloom. Cultivate this kind of flower to need to put its outdoor sunny place or half light place at ordinary times, after flowering, move into indoor view again.

5. Humidity

Humidity: North winter due to heating or raw coal heating, resulting in dry indoor air, some of the flowers like humid air, such as orchids, turtle, etc., in this environmental conditions, easy to appear leaf tip dry or leaf edge dry coke, leaves on the occurrence of coke spots, edge curl and other phenomena, should often use warm water close to room temperature spray wash branches and leaves, and put a basin of water on the radiator or stove, in order to increase indoor air humidity. For some expensive flowers, it is best to cover them with plastic film at night, and the leaves in the cover are partially scorched.

6. Diseases and pests

Flowers infected by fungi, viruses and other pathogens, it will cause a variety of leaf spot disease, so that local leaf tissue necrosis, chlorosis yellow spots or yellow green mosaic mottled, or the whole leaf yellow off. By red spiders, scale insects and other pests damage, chlorophyll damage, but also make leaves appear yellow and white spots, or leaf color yellow off. After discovery, timely spraying is needed for prevention and control.

2. How much is a pot of Penglai pine

At present, Penglai pine sells for about 15 to 20 yuan in the market, but individual high-quality Penglai pine depends on the color and breeding degree, hundreds to tens of thousands of them. Penglai pine is used as a flower arrangement leaf material to increase ornamental value.

The above is Penglai pine leaves yellow how to do and Penglai pine price introduced, I hope to help you. Friends who like Penglai pine may wish to spend a little money to cultivate some oh.