Does the peace tree blossom? What is the yellowing of the leaves? How should it be maintained?

Cinnamomum camphora belongs to the evergreen small tree Ping an tree, formerly known as Lanyu cinnamon, alias Hongtouyu cinnamon, Hongtoushan cinnamon, etc., originally produced in Lanyu Island, is a kind of green and auspicious Lanyu cinnamon. The flowering period of Ping an tree is from June to July and the fruit period is from August to September. How is it that the leaves turn yellow when planting a safe tree? How should it be maintained?

First, what is the yellowing of the leaves of the safe tree?

Analysis on the causes of yellowing leaves of Ping an tree in the process of culture:

1 Water yellow, caused by excessive watering, characterized by no obvious change in the old leaves and yellowing of the young leaves.

Solution: control watering immediately.

2. Dry yellow, caused by water shortage and drought, is characterized by yellowing of old leaves from bottom to top.

Solution: timely watering, otherwise due to lack of water for a long time, the whole plant will be yellow leaves, or even die.

3. Hungry yellow is caused by insufficient fertilizer, low concentration of fertilizer and long interval of fertilization. it is characterized by yellow at young leaves and tender stems.

Solution: timely fertilization, if you see this phenomenon, not timely fertilization, will cause the whole plant yellow leaves or even death, do not apply a large number of thick fertilizer.

4. Fat yellow, caused by excessive fertilization or high concentration, characterized by thick, shiny and uneven young leaves.

Solution: fertilizer control, ploughing and watering.

5. The leaves are withered and yellowed after exposure to the hot sun for a long time.

Solution: immediately move to 40% to 50% shaded environment for maintenance.

6. Iron-deficient yellow leaves, woody flowers in greenhouse, etc., due to great changes in soil fertility conditions, often appear yellow leaves, characterized by obvious young leaves, light old leaves, yellow mesophyll, green veins, and form a typical network.

Solution: the solution can be solved by using ferrous sulfate solution. The method is as follows: 7 parts of cake fertilizer, 5 parts of ferrous sulfate and 200 parts of water.

Second, how to maintain the safe trees?

1. Selection of basin soil

The soil had better choose loose and fertile, good drainage acid soil rich in organic matter, you can use your hands to pick up the soil, more particles, more loose can. There is a lot of soil powder in some soils, and long-term water irrigation can easily lead to soil consolidation and can not be selected.

The flowerpot does not have much requirement, according to the size of the plant, it can meet the growth of the safe tree. As for the material, do not choose the lighter plastic basin, it is easy to crack.

2. Sunshine requirements

All plants need sunlight for photosynthesis to ensure rapid growth. Ping an tree as a light-loving plant, in a sunny environment, the leaves will emit a metallic luster. But at the same time, they are also afraid of exposure to the sun. In summer, they are shaded in time under the hot sun, or placed in a position with poor indoor sunshine.

The light requirements of plants with different growth time are also different. Grow for 3 ~ 5 years, with proper sunlight to avoid exposure. For 6 ~ 10 years, avoid exposure to the sun and bask in more sun. That is to say, the older the tree is, the more it needs sunshine.

3. Watering method

Spring and autumn is the growing season, keep the basin soil moist moderately, and often spray water to the leaves to ensure adequate air humidity, and the amount of water watered in winter is halved.

In addition, in the process of watering, a small amount of ferrous sulfate solution can be added to the water, especially in the northern region, to adjust the acidity and basicity of the soil.

4. Knowledge of fertilization

Safe trees prefer fertilizer, apply compound fertilizer once a month in the growing season, and apply phosphorus and potassium fertilizer after the weather turns cool in autumn to increase the cold resistance of Ping an trees. Stop fertilizing at the temperature angle in winter.

In the process of fertilization, if the leaves yellowed and fell off, it was due to improper fertilization, resulting in root necrosis. Water or remove the plant from the pot for emergency treatment.

5. Pruning method

When the branches and leaves of Ping an trees are too thick, they can be pruned when the weather is clear in April. It is suggested that the overlong branches should be cut short, diseased branches and thin branches should be cut off to increase the light transmittance of the plant. When pruning, we need to pay attention to keep a certain distance from the cutting mouth to the tender bud to avoid withering the branches after pruning.

In addition, when the plant type is small, coring can be carried out to promote multiple branches.

6. Loosen the soil and change the basin

Ping an trees are usually planted in large pots with larger plants (except for small bonsai). It is recommended to loosen the soil once a month to ensure that the pot soil is in a loose state. When the loose soil is to be turned over with a tool, there is no need to break the root system.

The pots of small trees are changed once a year, and the pots of large trees are changed every 2 to 3 years. When changing pots, replace the old soil of 1ap3, cut off the necrotic roots and ensure the normal growth of Ping an trees.

Time: 2019-03-24 Click: