How to maintain orchids in summer and autumn? Guidelines for summer and autumn conservation of orchids

How to maintain orchids in summer and autumn? Orchids can also be called Chinese orchids, spring orchids, flowers and colors are white, pure white, white-green, yellowish green, yellowish brown, yellow and so on. Orchids like shade and fear the sun, avoid extreme heat and dryness, and require a well-ventilated environment when planting. Therefore, the maintenance and management in summer and autumn can be carried out according to the habit of orchids.

1. Shading and ventilation

Orchids should be shaded from early summer to the end of September, requiring that the shade should not be less than 70%. Shading a large amount of sunshade net, a small amount of balcony to the north, under the eaves. During this period, the plants should be sparse, the basin and basin should not be less than 10cm, and the bottom of the basin had better be supported by bricks, which can increase ventilation and ventilation. In addition, it is also necessary to prevent the pollution of harmful substances such as sulfur dioxide, hydrogen fluoride and dust to promote its robust growth.

2. Cooling and humidification

The suitable temperature for orchid growth is 20-28 degrees. When the temperature is above 25 degrees, it grows rapidly, and when it exceeds 32 degrees, it will enter the dormancy period. When the temperature reaches 30 degrees, it is necessary to take measures to cool and humidify. Those who breed orchids in the open air can spread river sand or plastic film on the ground, and those with persimmons on the balcony can pad sponges under the basin and often keep them moist. At the same time, the plants were sprayed and water was sprinkled to the ground during the day. Indoor farmers can cool down with the help of air conditioners or electric fans.

3. Watering and fertilization

At present, most of the orchids are cultivated in soil, and most of them are potted plants. Basin soil moisture should adhere to the principle of "moist but not wet, dry but not dry", watering when the topsoil is slightly white, do not water too much, from midsummer to early autumn, generally water once in the morning, and watering in the evening depending on the degree of dryness and wetness of the basin soil. If the potted soil is dry at noon, water should be replenished at any time. After the mid-autumn, the climate is getting cooler, but the air is dry, in accordance with the requirements of "autumn is not dry", keep the basin soil moist. Orchid fertilization is based on the principle of small amount, thin, frequently irrigated and timely, and fertilization is appropriate according to different orchid species and different growth stages from May to September. Liquid fertilizer is generally applied once every 15 to 20 days, the ratio of fertilizer to water is 1 ∶ 10, and solid fertilizer is used indoors. Multi-purpose chemical fertilizer is produced on a large scale with a concentration of about 0.1%. The concentration of foliar fertilizer spraying is prepared according to the product description.

4. Disease prevention and pest control

Orchid anthracnose can be controlled with carbendazim and topirazine; white silk disease can be drenched with 500-1000 times of chloramphenicol injection to control the disease; the adults of shell insects can be removed manually and sprayed with drugs during the hatching period of May-June larvae; aphids and whiteflies are sprayed with 500 times of 10% wettable powder.

When does the white orchid bloom? what is the maintenance method for the flowering period of the white orchid?

White orchid is a famous garden ornamental tree species, mostly planted as street trees, which is very popular in Fujian, Guangdong, Guangxi, Yunnan and other provinces in China, so when will the white orchid blossom? What is the maintenance method of white orchid florescence?

When does the white orchid bloom:

White orchids blossom every summer and autumn, the more southward, the earlier the florescence. Shenzhen has it in midsummer, and the flowering period is longer and lasts almost a month. White magnolia florescence April-September, cinnabar magnolia florescence April-May, purple magnolia florescence April-July, round-leaf magnolia florescence June.

How to make white orchids blossom more:

1. Pick leaves and hearts: pick leaves once before and after leaving the room, remove all the old leaves, leaving only a few leaves on the tip of the branches, in order to promote new branches and leaves and promote the breeding of flower buds. During the growth period, it is necessary to pick the heart three times: the first time to pick the heart after the flower fade to promote new buds and more buds; and then need to pick the heart twice at intervals in order to make the flowers luxuriant and beautiful, and the flowers bloom continuously.

2. Timely fertilization: during the flowering period from the first ten days of May to the end of September, the management of fertilizer and water should be strengthened based on the principle of diligent application of thin fertilizer. The rotten bean cake fertilizer liquid was applied every 3 to 5 days, and Ji fertilizer and water was applied every 7 to 10 days to wake up alternately. It is necessary to apply 1 or 2 times more available phosphorus and potassium fertilizer before flowering, which can make the white orchid bloom continuously.

3. Reasonable watering: the basin soil should not be too wet, the spring watering should not be much, and it is appropriate to keep the basin soil moist. Prevent drying during the summer growing season to prevent the leaves from scorching and drying. Watering in autumn should be slightly more than that in spring, and each watering should be thoroughly watered. The frequency of watering should be gradually reduced at the end of autumn. In the rainy season, stagnant water is needed to prevent rotting roots and yellow leaves.

Maintenance methods of white orchid during flowering period:

1, soft light: White orchids like light, can be placed under a shaded shed in summer, open the curtain in the morning to allow it to accept sunshine, cover the cover after 9 o'clock to avoid the sun, especially to avoid the noon bright light.

2. Water should be diligent: White orchids like to be moist, and they should be watered frequently in summer, and it is best to water once every morning and evening. In the morning and afternoon when the temperature is high, water should also be sprayed twice in the leaves and around them to increase humidity, because their roots are fleshy roots and are afraid of stagnant water. it should also be watered less or not in cloudy and rainy days. In case of rain, the drainage in the basin should be paid attention to in time to prevent the root from soaking and rotting, resulting in the death of the whole plant. Because the white orchid is a typical acidic flower, afraid of alkali, the water alkalinity in the north is greater, and the leaves are easy to yellowing and falling off after long-term use, so it is best to use Rain Water at intervals when watering, and ferrous sulfate can also be used for watering.

3, fertilizer should be big: White orchids like big fat and big water during the growing period, not only should they be well watered, but also should be well fertilized. It is best to use liquid fertilizer to fertilize, mix horseshoe slices, sesame paste and ferrous sulfate at the ratio of 1 to 1 / 0.5 and soak in water for a week. After fermentation, the effect is better when diluted with water every 5 days. The flowers and leaves are broad and thick, and the flowers are fragrant.

4. Good insect prevention: White orchids are most vulnerable to red spiders in summer. It is usually necessary to spray more water on leaves and plants to increase humidity to prevent the occurrence of insect pests. If it occurs, when the number is small, spray water can be used to wash leaves. For example, when the number of insects is large, 1000 times of triclofenac EC can be sprayed to get rid of insects.

Conservation of white orchids indoors 1. Magnolia flowers prefer a sunny and humid environment and should not grow in alkaline soil for a long time. Planting should choose places with shelter from the wind and sun, good drainage and fertile places. There should be plenty of water and fertilizer before flowering to promote the strong smell of the flowers. There are not many branches of white orchids, except for withered branches, disease and insect branches and branches that disturb the shape of trees, they generally do not need pruning. If there is no seed left after the flower fade, the fruit should be cut off so as not to consume nutrients. Strong light in the summer afternoon, ie so as not to burn branches and leaves due to exposure to the sun. Whenever you encounter continuous drizzle in autumn or heavy rain in summer, pots and pots should be placed in shelter in advance to avoid rotting roots due to excessive stagnant water. In winter, you should choose to place it in the room where the sun can shine and the seal is good. In order to prevent frostbite, the pots and cylinders planted with white orchids should be covered with plastic film. 2. Good ventilation is required, otherwise it is easy to cause harm to red spiders, and the leaves of the damaged plants turn yellow and fall off. In this case, in addition to spraying insecticides, the basin should be moved to a cool place, controlled watering, and new leaves can be regenerated soon. 3. Watering well is the key to how to raise white orchids. Because the white orchid is fleshy root, the most afraid of waterlogging, watering a little carelessly, it will cause disease or root rot. But it is also afraid of drought. in summer, as long as watering is slightly delayed, ginger burns and even burns tender shoots on the edge of the leaves. Poor growth and yellow leaves are often caused by improper watering, and diseased plants are more difficult to deal with. Therefore, it is necessary to strictly control watering, do not water the basin soil if it is not dry. Summer and autumn is the peak growing season of white orchids, and the hot weather requires a lot of water. Generally, they are fully watered in the early morning and properly watered again in the evening depending on the degree of dryness and wetness of the basin soil. The amount of water will be reduced after mid-September. Don't make the basin stagnant after rain in summer and autumn. 4. White orchids are particularly fond of fertilizer, and only when there is enough fertilizer can the flowers be more fragrant. In addition to applying sufficient basic fertilizer, since the middle of April, rotten cake fertilizer or human feces and urine should be applied 3 times per month, entering the flowering stage, the concentration of fertilizer can be increased appropriately, and the all-element compound fertilizer dominated by phosphorus can be supplemented 2-3 times a month, and phosphate fertilizer can be sprinkled directly on the surface of the basin soil, according to the size of the basin, each basin 30~l00 grams, let it infiltrate into the root with watering. 5. Magnolia only sprouts twice a year in spring and summer days, during which the branches stop growing for a period of time, and then they sprout for the second time. After each sprouting, five or six flowers can blossom from May to September. Therefore, in the growing period, diseased branches, dead branches and overgrown branches should be cut off, and some old leaves should be removed to control the growth of trees, so as to promote the gestation of flower buds and improve the quality of flowering. It is appropriate to remove the old leaves after the first peak growth period and in the following spring. 6. White orchids usually have leaf spot disease, rot fungus disease, aphid disease and so on. Aphids can be caught and eliminated directly. For the leaves with the appearance of bacteria, the diluted carbendazim and methamidone solution can be sprayed and sterilized.