Analysis on the causes of yellowing of Pinus elliottii leaves

The yellowing of leaves often occurs in the process of cultivation of Pinus elliottii, and there are many reasons for yellowing of leaves, such as too much water, too little water, too strong and weak sunlight, too little fertilizer, too little fertilizer will cause different degrees of yellowing of leaves. The editor will give you a detailed introduction to the causes and treatment of yellowing of Pinus elliottii leaves.

Yunsong

The main results are as follows: 1. Water yellow: the young leaves are dark yellow and dull, the old leaves have no obvious change, the branches are small and yellow-green, and the new shoots are not long, indicating that they are overwatered. Remove the flowers from the pot and place them in a ventilated, cool, self-drying soil mass and then put them back into the basin.

2. Dry yellow: the yellow with lack of water is different from the yellow with more water, the yellow with lack of water is withered and dry at the tip or edge of the leaf, and the old leaf is withered and yellow from the bottom up, but the growth of the new leaf is relatively normal. Pay attention to watering enough and thoroughly.

3. Burning yellow: strong sunlight shines directly on some shade-loving flowers (such as hanging orchids (details), hairpins, etc.), which can easily cause withered leaf tips and edges, and macula in the sunny part of the leaves. Just move to the shade.

4. Lack of light and yellow: put in a shady environment for a long time, the leaves can not get enough sunlight, can not form chlorophyll, the whole leaves turn yellow and then fall off, supplementary light can avoid the disease.

5. Fat yellow: flowers yellowing caused by too much fertilization or too much concentration, showing dry brown at the tip of new leaves, general leaf thickening and no luster, and concave and convex not stretching, old leaves scorched yellow shedding. Fertilizer should be stopped immediately and some fertilizers should be washed with a large amount of washing.

6. lack of fat yellow: the color of the tender leaves becomes lighter, yellow or light green, while the old leaves are more normal or gradually change from green to yellow. Check the basin soil, if there is a dry knot phenomenon should change the soil, usually apply thin fertilizer frequently and pour some alum at the right time.

How to yellowing the leaves of Pinus elliottii? pay attention to the breeding methods and matters needing attention

The yellowing of leaves often occurs in the process of cultivation of Pinus elliottii, and there are many reasons for yellowing of leaves, such as too much water, too little water, too strong and weak sunlight, too little fertilizer, too little fertilizer will cause different degrees of yellowing of leaves. What about the yellowing leaves of Pinus elliottii?

What if the leaves of Pinus elliottii turn yellow:

The main results are as follows: 1. Water yellow: the young leaves are dark yellow and dull, the old leaves have no obvious change, the branches are small and yellow-green, and the new shoots are not long, indicating that they are overwatered. Remove the flowers from the pot and place them in a ventilated, cool, self-drying soil mass and then put them back into the basin.

2. Dry yellow: the yellow with lack of water is different from the yellow with more water, the yellow with lack of water is withered and dry at the tip or edge of the leaf, and the old leaf is withered and yellow from the bottom up, but the growth of the new leaf is relatively normal. Pay attention to watering enough and thoroughly.

3. Burning yellow: strong sunlight shines directly on some shade-loving flowers (such as hanging orchids (details), hairpins, etc.), which can easily cause withered leaf tips and edges, and macula in the sunny part of the leaves. Just move to the shade.

4. Lack of light and yellow: put in a shady environment for a long time, the leaves can not get enough sunlight, can not form chlorophyll, the whole leaves turn yellow and then fall off, supplementary light can avoid the disease.

5. Fat yellow: flowers yellowing caused by too much fertilization or too much concentration, showing dry brown at the tip of new leaves, general leaf thickening and no luster, and concave and convex not stretching, old leaves scorched yellow shedding. Fertilizer should be stopped immediately and some fertilizers should be washed with a large amount of washing.

6. lack of fat yellow: the color of the tender leaves becomes lighter, yellow or light green, while the old leaves are more normal or gradually change from green to yellow. Check the basin soil, if there is a dry knot phenomenon should change the soil, usually apply thin fertilizer frequently and pour some alum at the right time.

Culture methods and matters needing attention of Pinus elliottii:

First: use soil. The potted soil of Pinus yunnanensis is required to be planted in sandy soil with good drainage system, good ventilation and slightly acidic organic matter. Yunsong usually uses rotten leaf soil to mix with yellow soil and sandy soil, the ratio is 6:3:1. The potted soil of Pinus yunnanensis should not be alkaline, otherwise it is disadvantageous to the growth and development of Pinus yunnanensis, and the second stage will lead to yellowing and shedding of Pinus yunnanensis leaves.

Second: change the basin. When Yunsong is on the basin at the beginning, the plain-fired mud basin should be selected because of its relatively good ventilation and easy survival. The potted soil of Pinus yunnanensis should be changed every 3-4 years, and the best time is from the end of February to the beginning of April or from September to mid-October. When changing pots, Yunsong should cut off some old roots properly and pour water thoroughly, which is beneficial to the growth of Pinus yunnanensis.

Third: watering. The watering of Yunsong should be moderate and reasonable, and should not be watered too much. The foliar surface of Pinus yunnanensis should be sprayed frequently, and the soil moisture should be kept between 15% and 30%. Generally, Yunsong is watered once a day in spring and autumn and twice a day in summer. At the same time, the local water should be watered according to the changes of the weather.

Fourth: fertilization. The method of thin fertilizer and less fertilizer is suitable for Pinus yunnanensis, and it is suitable to apply fully mature cake fertilizer. Yunsong spring fertilizer is applied every 10 days 2-3 months before germination, and the best concentration is 15%, which can effectively promote germination and branch growth. Yunsong in July-August hot weather, it is appropriate to apply 10% dilute fertilizer and water, once every 15 days, sooner or later. September is the fastest stage of thickening and growth of Pinus yunnanensis, so the concentration of autumn fertilizer can be increased to about 25% to promote multiple axillary buds of Pinus yunnanensis, and there are sufficient nutrients for stem and branch growth. Yunsong needs to stop fertilizing at the end of October.

Fifth: lighting. Pinus yunnanensis is a strong positive plant. The flowerpot of Pinus yunnanensis should be kept in a dry, ventilated and sunny place. Too wet and dark has a certain effect on the growth of Pinus yunnanensis. The seedlings of Pinus elliottii planted in pot for 1-2 years should be properly shaded at noon in summer to prevent the appearance of scorched leaves caused by excessive sun exposure of needles, and should be placed in the open air at other times to fully accept the sun. In this way, the branches and leaves of Pinus yunnanensis bonsai are dense and green, which improves the ornamental value of Pinus yunnanensis plants.

How to raise Pinus yunnanensis, the culture methods and matters needing attention of Pinus elliottii

Yunsong is also known as Phyllostachys pubescens, Phyllostachys pubescens, asparagus grass and pine grass. The roots of its plants can be used as medicine to treat acute tracheitis and cough, so they are favored by consumers. So do you know how to raise Yunsong? What are the breeding methods and matters needing attention? The following is an introduction by the editor.

How to raise Pinus yunnanensis, the breeding methods and matters needing attention of Yunsong:

First: use soil. The potted soil of Pinus yunnanensis is required to be planted in sandy soil with good drainage system, good ventilation and slightly acidic organic matter. Yunsong usually uses rotten leaf soil to mix with yellow soil and sandy soil, the ratio is 6:3:1. The potted soil of Pinus yunnanensis should not be alkaline, otherwise it is disadvantageous to the growth and development of Pinus yunnanensis, and the second stage will lead to yellowing and shedding of Pinus yunnanensis leaves.

Second: change the basin. When Yunsong is on the basin at the beginning, the plain-fired mud basin should be selected because of its relatively good ventilation and easy survival. The potted soil of Pinus yunnanensis should be changed every 3-4 years, and the best time is from the end of February to the beginning of April or from September to mid-October. When changing pots, Yunsong should cut off some old roots properly and pour water thoroughly, which is beneficial to the growth of Pinus yunnanensis.

Third: watering. The watering of Yunsong should be moderate and reasonable, and should not be watered too much. The foliar surface of Pinus yunnanensis should be sprayed frequently, and the soil moisture should be kept between 15% and 30%. Generally, Yunsong is watered once a day in spring and autumn and twice a day in summer. At the same time, the local water should be watered according to the changes of the weather.

Fourth: fertilization. The method of thin fertilizer and less fertilizer is suitable for Pinus yunnanensis, and it is suitable to apply fully mature cake fertilizer. Yunsong spring fertilizer is applied every 10 days 2-3 months before germination, and the best concentration is 15%, which can effectively promote germination and branch growth. Yunsong in July-August hot weather, it is appropriate to apply 10% dilute fertilizer and water, once every 15 days, sooner or later. September is the fastest stage of thickening and growth of Pinus yunnanensis, so the concentration of autumn fertilizer can be increased to about 25% to promote multiple axillary buds of Pinus yunnanensis, and there are sufficient nutrients for stem and branch growth. Yunsong needs to stop fertilizing at the end of October.

Fifth: lighting. Pinus yunnanensis is a strong positive plant. The flowerpot of Pinus yunnanensis should be kept in a dry, ventilated and sunny place. Too wet and dark has a certain effect on the growth of Pinus yunnanensis. The seedlings of Pinus elliottii planted in pot for 1-2 years should be properly shaded at noon in summer to prevent the appearance of scorched leaves caused by excessive sun exposure of needles, and should be placed in the open air at other times to fully accept the sun. In this way, the branches and leaves of Pinus yunnanensis bonsai are dense and green, which improves the ornamental value of Pinus yunnanensis plants.

The above is how to raise Pinus yunnanensis, the breeding methods and precautions of Pinus yunnanensis. Pinus yunnanensis should avoid strong light as far as possible in summer, which is more conducive to the growth and development of Pinus yunnanensis and effectively improve its ornamental value.