Culture methods of evergreen in Guangdong

Soil:

Rotten leaf soil is generally used in the mixed soil of Gaza on the basin, potted or open field cultivation can be carried out in the south, and greenhouse cultivation is needed in the north. The requirements of the soil are not strict, but they are afraid of stagnant water, soil or potted plants avoid hard clay and alkaline soil for thousands of years.

Humidity:

Guangdong evergreen likes the humid climate and requires the relative air temperature of the growing environment to be 60%-75%.

Temperature:

Guangdong evergreen likes a warm living environment and is not resistant to cold. The overwintering temperature should be kept above 5 ℃-8 ℃ in order to grow normally.

Lighting:

Like semi-shade environment, extremely resistant to shade, afraid of direct sunlight, can be cultivated indoors for years, even in places where the light is too dark, it will not grow as futile as other plants. Avoid strong light in summer, when the light is strong, it is easy to cause dry tips, scorched edges and even withered yellow leaves, affecting the ornamental effect.

Fertilization:

Fertilization should generally be stopped in summer. In spring and autumn, applying rotten cake fertilizer and water every 3-4 weeks can make the plant grow healthily and the leaves green. Liquid fertilizer dominated by nitrogen fertilizer was applied every two weeks during the growth period.

Culture methods of evergreen in Guangdong

Guangdong evergreen is very shady and grows in bright scattered light. For example, the north side of the building, under the trees are very suitable, spring and autumn morning and evening can see the sun, summer to avoid direct sun, early because of strong light and leaves easy to yellowing. During the growing period, the soil should be kept moist; in summer, water should be sprayed twice a day to increase humidity and cool down and clean foliar dust. From May to October, applying cake fertilizer and water every semimonthly can keep the leaf green and bright. If you raise it with water, you only need to put a small amount of long-acting flower fertilizer or compound fertilizer in the container to grow well.

Breeding methods of evergreen in Guangdong 1. Potted soil

Guangdong evergreen likes slightly acidic soil that is loose and fertile, rich in humus and well drained. Potted soil can be prepared with peat soil or fine sandy soil with a small amount of barnyard manure.

2. Temperature

Guangdong evergreen likes a warm living environment and is not resistant to cold. The overwintering temperature should be kept above 5 ℃ to 8 ℃ in order to grow normally. The suitable overwintering temperature of Guangdong evergreen should not be lower than 18 ℃.

3. Lighting

Guangdong Wannianqing likes a semi-shady environment, extremely shady and afraid of direct sunlight. It can be cultivated and maintained indoors all the year round. Even in places where the light is too dark, it will not grow as futile as other plants. Avoid strong light in summer, when the light is strong, it is easy to cause dry tips, scorched edges and even withered yellow leaves, affecting the ornamental effect. Therefore, it should be shaded after coming out of the room in early spring.

4. Watering

In addition to keeping the basin soil moist in summer, Guangdong evergreen should not be watered too frequently in spring and autumn, and watering should be controlled in winter. Ten thousand young people are fleshy roots, so they are most afraid of stagnant water. if they are watered too much, they are easy to rot. But must keep the air moist, such as dry air, easy to occur leaf dry tip and other bad phenomena, dry early season pay attention to spray water around the plant to increase air humidity.

5. Fertilization

In spring and autumn, applying rotten cake fertilizer and water every 3 to 4 weeks can make the plant grow healthily and the leaves green. Liquid fertilizer dominated by nitrogen fertilizer was applied every two weeks during the growth period.

6. Diseases and insect pests

During the growth period, evergreen is vulnerable to leaf spot disease, anthracnose, shell insects, brown soft ants and other harm, we should pay attention to prevention and control.

7. Pruning

If the evergreen plant is too tall and the shape of the plant is not good, it can be truncated after keeping the lumb2 node, the re-germinated plant will grow more vigorously, and the cut branches with top tips can be directly inserted into a water bottle to watch, and the tender white roots can grow after about 30 days. In addition, a few pieces of the old leaves on the periphery of the adult plant should be cut off before and after the Beginning of Summer to facilitate the germination of new buds and new leaves.

Disease and pest control items

Evergreen is vulnerable to leaf spot, anthracnose, shell insects, brown soft scale and so on during its growth.

1. Leaf spot

The disease occurs on the leaves of evergreen, and it is easy to occur in high humidity weather. The disease spot is straight brown spot at first, the periphery is water-immersed fade green, and shows wheel-like expansion, round to oval, the edge of brown inside gray-white. In the later stage, black-brown mildew spots appeared in the center of the lesion, and turned into a dark-brown mildew layer under wet conditions. The way to prevent and cure the disease is to remove the residual leaves in time; 0.5% of Bordeaux solution (or 50% carbendazim 1000 times) can be sprayed in the early or later stages of the disease.

2. Anthrax

The disease also occurs on the leaves of evergreen and can spread to the petiole in severe cases. In the initial stage, the plaque showed a flooded small macula, and after expansion, it was oval to irregular brown or yellowish brown, slightly rimmed, and in the later stage, the plaque became dry and produced small black spots arranged in wheel patterns. The main reason for this disease is poor ventilation, and it is beneficial to the occurrence of the disease when it is harmed by shell insects. The way to prevent and cure the disease is to strengthen maintenance and increase the application of phosphorus and potassium fertilizer; at the initial stage of the disease, 0.3% Mel 0.5% Bordeaux solution (or 60% Dysen zinc 800,900 times, or 70% topiramine 1500 times) can be sprayed.

3. Brown soft scale

This insect has complex feeding habits and can harm many plants, among which evergreen is one of the injured flowers. When brown soft scale harms plants, it is generally clustered on the leaves or tender leaves, sucking plant sap and excreting mucus at the same time. Its excretion can easily cause a large number of coal fouling bacteria to multiply, blacken stems and leaves, affect plant photosynthesis, and cause weak growth potential. Leaves withered and yellow, hindering viewing. When the occurrence is serious, the branches and stems are covered with insect bodies, resulting in the withering and yellowing of the plants and affecting the growth.

Guangdong evergreen breeding method Guangdong evergreen happy shady environment, afraid of direct sunlight, can be placed in the shade for a long time to grow, short-term exposure to the leaves will also turn white after withering, the appropriate temperature for growth of 20: 28 ℃, not cold-resistant, winter needs to maintain more than 8 ℃, the temperature is too low, easy to freeze injury, once the leaves will die. Summer high temperature season needs to water every morning and evening, in addition, should also spray water to the surrounding ground, in order to improve air humidity. Watering in spring and autumn should be dry and wet, and watering should be controlled in winter. if the basin soil is too wet at this time, the leaves will easily turn yellow and cause root rot. During the growth period, the basin soil should not be too dry, otherwise the lack of water will easily make the leaves yellow and withered. Liquid fertilizer with more nitrogen and potassium is applied every 15 to 20 days in spring and autumn, and fertilization should be stopped in midsummer. Guangdong evergreen likes loose, fertile, well-drained cultivation substrate and is not tolerant to salt and alkali. The basin soil can be mixed with rotten leaf soil, garden soil and a small amount of river sand. The basin is usually changed once a year or two. The mother plant that has been growing for many years is often creeping and its posture is poor, so it should be renewed by cutting. Ramet and cuttings are commonly used. The cutting rooting temperature is 2530 ℃, the relative humidity is about 80%, and it takes about one month to take root. The pot soil was mixed with 3 parts of rotten leaf soil, 1 part of loam and 1 part of coarse sand, and proper amount of base fertilizer was added. Keep the basin soil moist and high air humidity during the growth period, so that the air humidity is not less than 40%, pay attention to shading in summer, apply thin acid fertilizer and water every two weeks, and the temperature in the greenhouse is not less than 10 ℃ in winter. The pot is changed every spring according to the size of the plant.