After the white dew exposure, many places in China, especially the areas north of the Yangtze River, began to enter the real autumn. The maximum temperature during the day is generally lower than 30°C, and the night temperature is around 20°C, which is very suitable for the growth of orchids. However, the orchid raising people should also pay attention to the following aspects.
1. Prevent heatstroke and cool down, actively respond to the fall tiger. In the autumn, most regions of China are still in a period of high temperature, and Liqiu does not represent the beginning of autumn. For the supporters, they should not careless about the beginning of fall season. To actively respond to the fall tiger, ventilation, cooling, and heatstroke should be the first priority. Once the temperature in the blue room exceeds 32°C, water curtains, air conditioners, and humidifiers should be used. Fans and other measures to reduce ventilation.
2. Increase humidity, timely watering, beware of dry diamond shell. Precipitation in the fall is significantly reduced, the air humidity is reduced, and the weather is dry. Therefore, the primary task of raising the blue flowers in autumn is to increase the air humidity. We can take measures such as humidifying the sink, spraying water on the ground, humidifying the humidifier, and making efforts to create an air relative humidity of no less than 40%. In autumn, the amount of water evaporation is large, and basin soil is easy to dry from the pelvic floor, forming a dry shell, affecting the development of buds, harming orchid roots. In order to avoid the dry shell, people who raise orchids need to be diligent in observing the basin's dry and wet conditions, and find that the pot soil is dry and should be irrigated in a timely manner to keep the soil moist and not stained. Do not overdo it.
3. Increase the light, increase the temperature difference, and promote strong seedlings. In the fall, the dust in the air is reduced, the transparency is high, and the sun is shining. The average temperature is about 22°C, and the temperature difference between day and night can reach around 10°C, which is very conducive to the growth of orchid seedlings. Lan You should seize the opportunity to reduce the degree of shade as much as possible, so that orchids receive full light, especially in the case of strong grass. The windows of the blue room should be opened at night so that it can be fully ventilated and the temperature difference between day and night can be maximized. Practice has proved that increasing orchids and increasing temperature difference in autumn orchids is a quick way to promote buds and strong seedlings.
4. For planting materials, moderate fertilizer. In September, the general Guolan began to develop strong grasses and buds, the new seedlings grow rapidly, consume a lot of nutrients, moderate fertilizer is necessary. However, fertilization needs to be treated differently depending on the planting situation. Orchids cultured with orchid mud and less than one year old are generally not fertilized; apply appropriate amount of organic fertilizer to orchids cultured with orchid mud for more than one year without replanting or using granular planting materials.
5. Pay attention to ventilation and prevent pests and diseases. The autumn bluegrass grows rapidly, and it is also a season with multiple pests and diseases. If the ventilation is not good, potted orchids tend to have dark spots, and pests such as thrips and red spiders threaten the growth of orchids. The prevention measures are to strengthen ventilation and timely spraying drugs for prevention and treatment. It is best to use lime water or other antiseptic drugs to conduct a thorough cleaning and disinfection of the blue-climbing sites so as to prevent the occurrence of various pests and diseases.
6. Change potted ramets and treat them differently. After the autumnal period, the vegetative growth of Guolan tends to come to an end. It is one of the best periods for cultivating potted ramets in a year. In general, the cultivation of nutrients for planting for more than two years is mostly exhausted, and it should be replaced in due course for the needs of orchid growth; weak seedlings can be properly extended over the period of potting, and overturning is not conducive to the rejuvenation of orchids. The potted soil should be dried slightly in order to prevent damage to orchid roots; raspberry tools such as scissors should be used exclusively and disinfected; ramets incision and pruning root wounds should be coated with sterile powder to prevent wound infection; The site should be clean, clean the water of the orchid plant should be hygienic, avoid a pot of water in the end, it is best to use the tap to wash; wash blue plants should not avoid exposure, should be placed in the shade to dry as well.
Guolan is a plant that likes to live in groups. It is generally not possible to plant plants in different plants and plants, but this does not mean that the number of potted orchid plants is better. Practice has proved that if Guolan is not divided into four or five generations, it will not be conducive to growth and it will require timely ramification.
Guolan due to false bulbs is too small, the ramets should not be too busy, generally four or five strains of bred is better, it is not suitable for planting, otherwise it will be contrary to wishes, Lanyou should try to avoid.
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