The latest culture methods of white orchids

White orchid plant shape upright branched, generous, in the south can be cultivated in the open courtyard, is the backbone of the southern garden tree species, potted can be arranged in the courtyard, hall, conference room, small and medium-sized plants can be displayed in the living room, study, has a high breeding value, let's take a look at the cultivation methods of white orchid!

Growth habits of White Orchid

1. Habits: Magnolia flowers like light, afraid of high temperature, not cold-resistant, suitable for slightly acidic soil. Like warm and humid, not resistant to drought and waterlogging, sensitive to sulfur dioxide, chlorine and other toxic gases, poor resistance.

2. Propagation: the propagation methods of white orchids are grafting, striping, sowing and cutting. the more commonly used propagation methods are grafting and crimping, while sowing and cutting are less, but they are used in family breeding. Grafting and striping are enough.

Culture methods of White Orchid

1. Soil: White orchid likes acidic soil, and the requirement of soil pH value is 5.5-6.3. it is best to use fertile, loose and well-drained soil. It can be prepared with 5 parts of pine needle rotten leaf soil, 2 parts of crude bran ash, 2 parts of coarse sand and 1 part of retted barnyard manure, and do not use fine sand or clay with poor permeability.

2. Sunshine: Magnolia magnolia is a positive flower, which needs plenty of sunlight and should be maintained on sunny ground with long sunshine and strong light during growth, especially during flowering. The light should not be less than 6 hours a day. If it is maintained in a shaded place, it will only grow leaves but not blossom, or blossom very little, the branches are slender, the leaves are light, and the leaves are thin and dull, which is disadvantageous to the growth. But in summer to avoid direct sunlight, 9 am to 4 pm to give shade, at the same time to spray water on the leaf and the ground to increase air humidity.

3. Temperature: White orchids like to be warm and afraid of cold, so special attention should be paid to protection to make them safe to survive the winter. It is generally moved into the room in late October and placed in the sunny place. it is better to keep about 10 ℃ at room temperature, not less than 5 ℃.

4. Watering: White orchid belongs to fleshy root, the potted soil is too wet, the leaves will wither and fall off, and even the rotten roots will die, and if they are too dry, they will wither and curl their leaves. They are flowers that are afraid of both waterlogging and drought. During the flowering period, when the petals are overstretched, it shows that the water is insufficient, and if the water is suitable, it is bract. The surface of the basin soil is dry, and when the soil is hard and cracked, it should be watered immediately. Watering requires that the water temperature and soil temperature must be the same, and can not suddenly pour cold or hot water. Spring and autumn generally can be watered once a day, hot summer, large evaporation, exuberant growth, can appropriately increase the number of watering and weight. When moving indoors in winter, you should refrain from watering.

5. Fertilization: White orchid flowers have a long flowering period and like fertilizer, but if there is not enough fertilizer, they will blossom less. Inappropriate fertilization will lead to excessive growth of branches and leaves and poor flowering. Before the germination of new buds from February to March, mature cake fertilizer was used as base fertilizer. Thin human feces and urine were applied during flowering, or 9 parts of fermented liquid fertilizer from bean cake, tea seed cake and fish bones were mixed with water, once every 3-4 days. Stop fertilizing half a month before entering the house for the winter.

6. Pruning: during the growth of white orchid, the plant should be pruned, the diseased branches and overgrown branches should be cut off, and part of the lower leaves should be removed so as to inhibit plant growth and promote more flowering of pregnant buds.

7. Insect pests: the main diseases and insect pests of white orchids are yellowing, anthrax, red spiders, shell insects and so on. Anthracnose can be treated with 50% carbendazim wettable powder 500 times, or 50% topiramate wettable powder 500 times, sprayed once every 5-10 days. Once red spiders and shell insects are found, they can be scraped off with bamboo. Red spiders can be sprayed with 1000 times of triclofenac or 1000 times of triclofenesulfone.

Points for attention of White Orchid

1. Soil requirements: 5 parts of pine needle rotten leaf soil, 2 parts of coarse bran ash, 2 parts of coarse sand and 1 part of retting barnyard manure can be used for cultivation soil which is required to be fertile, loose and well drained. Do not use fine sand or clay heavy soil with poor air permeability. The upper basin uses ventilated tile pots (plain burning pots), do not use glazed pots, porcelain pots, purple sand pots, etc., it is best to use deeper cylindrical flowerpots, buckle empty flowerpots under the pots, and erect them with bricks to prevent poor drainage; the bottom of the basin is paved with about 5 cm of slag and gravel.

2, suitable for water: White orchid belongs to fleshy root, the potted soil is too wet, the leaves will wither and fall off, even the rotten roots will die, and if they are too dry, they will wither and curl leaves. They are flowers that are afraid of both flood and drought. During the flowering period, when the petals are too open, it shows that the water is insufficient, and the suitable moisture is in the shape of a bud; the surface of the basin soil is dry, and the soil should be watered immediately when the soil is hard and cracked. Watering requires that the water temperature and soil temperature must be the same, and can not suddenly pour cold or hot water. Watering must be thoroughly watered, often half of the water will cause shallow roots. White orchids should not be watered in spring and autumn, they should be watered every day in midsummer and must be watered in the evening, and the amount of water should be reduced at the end of autumn and watered every 10 days in winter. The overcast and rainy season should be moved to shelter.

3. Like acid and fear alkali: White orchid likes acidic soil, and the requirement of soil pH value is 5.56.3. In the northern region, white orchids are not easy to raise because most of the water and soil there are alkaline, which dissolves the protoplasm of white orchid cells, resulting in slow growth and poor growth of flowers. Often irrigated with fermented Amoy rice water, the effect is better.

4. Do not apply thick fertilizer: White orchids like phosphorus and potassium fertilizer, but avoid high concentration, otherwise it will produce reverse osmosis and cause "physiological drought" of the plant, wilting in light and burning to death in heavy. The fertilization principle of white orchid is: "sparse application, regular application, evening application". Practice has proved that using thin human feces, urine and bean cake water mixed with smashed fish offal, rotten shrimp, chicken viscera, etc., after retting, it is applied every 3-5 days according to the proportion of fertilizer and water at 1:9, and calcium sulfate is added when it is applied, the effect is better, and the fragrance of white orchid can be strong.