Hanlan is a collection of the beauty of various orchids and the aura of all things. It is very difficult to introduce a method suitable for the cultivation of Cymbidium Hance in different places, and since ancient times, the cultivation and management methods have been introduced, and rarely mentioned separately. Today, I have sorted out some relevant materials, hoping to help you who are confused.
How to cultivate Hanlan: in general, to manage the cultivation of Cymbidium Hanlan, we must meet the needs of the growth conditions of Hanlan, and create conditions suitable for the growth and development of Cymbidium Hanlan in cultivation.
Hanlan grows in the deep mountain and dense forest, and its requirements for temperature, humidity, moisture, illumination and ventilation are somewhat different from those of other orchids. Hanlan grows in the deep mountains. Although it faces frost or short-term snow in winter and is in high temperature and heat in summer, the green shade in the mixed forest of broad-leaved forest and coniferous forest or bamboo forest not only blocks the hot sun and high temperature in summer, but also blocks the winter In the snow covered area, the snow plays a protective role, and the ground temperature under the snow will not be lower than zero, so Hanlan chooses to live in the deep mountains and old forests which are warm in winter and cool in summer.
1. How to adjust the temperature in the cultivation of Cymbidium Hance
The main regulation of temperature is to prevent the root of Cymbidium Cymbidium from frostbite in winter and the leaves from high temperature and heat in summer, so that Cymbidium can grow normally and flourish. The flowering period of potted Cymbidium Cymbidium is about 20 days earlier than that in the wild in mountainous area. The flowering is related to the temperature. In addition, the temperature has a great influence on the flower fragrance of Cymbidium Hance. The temperature is higher, the flowering aroma is worse, and the temperature is lower, the flower is fragrant and lasting.
It is necessary to consider humidification and cooling to adjust the temperature in the shed. In addition, trees or vines can be planted in or near the orchid shed planting area to adjust the temperature and create conditions for the growth of Cymbidium Hance. Tree planting is a good way. Shade can cover the sun and reduce the radiant heat of the big sun. Under the thick shade, it can cover more than 90% of the light. The shade can adjust the light and ground temperature naturally. If the blue canopy is on the high altitude balcony, it is necessary to sprinkle water or spray regularly at the site to play the role of preventing heat and cooling. Because when water evaporates, it absorbs a lot of heat. Also need to strengthen ventilation, so that the air circulation, can also reduce the temperature. While adjusting the air temperature, attention should be paid to the temperature of basin soil. If the basin soil is coarse and hard granular plant material, it will change greatly with the rise and fall of air temperature, but the change process is relatively slow. Therefore, when watering, the temperature of water should not be too different from the temperature of basin soil, otherwise the disease will be more.
Cymbidium Hance
2. The humidity needed by Hanlan must be adjusted
Generally refers to the humidity refers to the air humidity, air humidity also known as relative humidity, with% to express. The growth of Cymbidium Hance requires high air humidity. In the mountains, the air humidity is relatively high, and the growing season is rainy and foggy. The water mist is often diffused in the growing place of cynomolgus Cynthia, and the relative humidity is about 90%. When the air humidity is low, the seedlings are yellow and thin, and the leaves are rough, without strong green luster. Air humidity suitable for her growth, then leaves moist green luster. In general, the humidity required for the growth period of Cymbidium Hance should not be lower than 80%, and the winter dormancy period should also be 65-70%, and the air humidity at night is higher than that in the daytime.
The growth of cold orchid also needs moist air. Therefore, in the cultivation of cold orchids, humidity and ventilation are two relatively contradictory factors. More ventilation will reduce the humidity. In the deep mountains, this problem is better, because there are firewood trees around, which will maintain a certain humidity, but in the orchid farm, it is different. In order to maintain the air humidity, the orchid breeders should less ventilation or appropriate ventilation, and can set up a slow moving head blowing device, fine wind Frequent blowing makes the leaves move.
In addition to less ventilation, there are several ways to increase air humidity: planting flowers and trees, so that plant roots can retain water, increase water evaporation in the air, plant roots can absorb a lot of water from the ground, evaporation in the air to increase air humidity. In the ground and around the water, dry ground, more water or irrigation can increase humidity. On the top of the blue shed, small plastic pipes can be added to drip water. A small hole is drilled every meter, and the water inlet is connected with tap water. If the blue canopy is on the balcony roof, aerosol or spray tube can be installed in the air, which can significantly increase the humidity. Self priming spray can also be used for humidification and cooling in summer. All of these methods can increase humidity.
In addition, under the blue frame, a pool, a basin or a ditch around it can be added, and the humidity can also be increased by adding water tanks, buckets, and water pans.
Cymbidium Hance
3. Hanlan needs ventilation
In the south, it is sometimes cloudy and rainy, and the humidity is too high. Excessive humidity should be more ventilation: use electric fan, exhaust fan to make air circulation, so that water evaporation quickly. Hanlan likes humidity, high humidity and good ventilation, Hanlan will grow strong. However, in high temperature and high humidity and without ventilation, it will be harmful to the new buds of Cymbidium Hanlan, and it is easy to produce a variety of pathogens and insect pests, so we should avoid high temperature and high humidity without ventilation. In order to make the cultivated Cymbidium Hance grow well, ventilation plays an important role in the cultivation conditions. Ventilation can promote the breathing of Cymbidium Hance, continuously supply fresh and clean air, promote its metabolism, promote photosynthesis, and increase the production of nutrients. Ventilation can also adjust the temperature and humidity of the orchid room and shade shed, so that the cold orchid is conducive to growth. Ventilation can reduce the occurrence of diseases and insect pests, because most of the diseases and insect pests are caused by poor ventilation.
4. Cold orchids need water
Hanlan, like other plants, can't lack water. Hanlan belongs to mesophyte. Its root doesn't need too much water, but the leaf needs more water than other orchids. But how much water does it need? When and how should it be watered? This problem, especially the new orchid breeders are eager to know, because its leaves are tall and large, and the leaves are thinner than those of Magnolia. For Yifeng, Hanlan has a variety of leaf shapes, which may be more hybrid varieties. Therefore, it should be treated differently in the cultivation of Hanlan. Generally, Cymbidium Cymbidium needs more water than other orchid species. In addition, different growing seasons, different texture and size of orchid pots have different requirements for water, so they should be treated differently. Generally, beginners who cultivate orchids see that there is water shortage in the leaves of Hanlan, and they are afraid that the orchid will dry up and water more. As a result, the cold orchid will die of rotten roots.
Cymbidium Hance
Conclusion: the above mentioned cold orchid needs to be moistened on the leaf surface, which refers to the need to add water outside the root to maintain it. In fact, the water required by the roots of Cymbidium Hance is not much different from that of other orchids. Of course, because the leaves of Cymbidium Hance are thin and large, it needs more water, but the watering method is different. Cold orchid can be drenched in summer and autumn, less in winter and spring. In order to ensure sufficient water and nutrients in the growth period and bud stage, Hanlan should be watered more. Hanlan should be watered less or not during dormancy. Hanlan strong growth more water, poor growth less water, the diseased plant not water. When sprouting and growing, the water content can be more, and it can be reduced gradually in the later stage of germination, and the water content should be less when the new buds gradually become seedlings.
In order to prolong the flowering period, it is necessary to stop about a week after the flower withers, so as to make the orchid plant slightly dormant. When the climate is hot and dry, pour more water, especially on the leaf surface. When the temperature is low, the orchid breeders should pay attention to the weather forecast. Water more on sunny days and less on rainy days. Pay attention to the texture and size of pots. Pour more tile pots, less plastic pots, more frequent small pots, less large pots, more and more hard granular plants and less soft plants.
Large pot as long as the basin can be well ventilated, no air pollution, three or four times a year to prevent the line. If ye Yilan is cultivated in a large pot with a small pot, it can protect her from burning the leaf tips. As we all know, there are two reasons for burning the leaf tip of orchid seedlings: first, the air is dry; second, the root whiskers in the pot are out of control, water is out of control, or dry or wet, the water is stuffy, the root is black, and the air permeability in the basin affects the physiological disorder of root crown of orchid, resulting in rotten root and affecting burnt tip. The author has tried to plant Cymbidium Hance in large pots for many years, and it grows stronger and stronger year by year after planting. From four leaves per seedling to five leaves in the second year and six leaves in the third year, the leaf surface is obviously widened, and the third generation seedlings do not burn leaf tips. In order to prove that its growth is related to the pot, Xiaobian planted it back to the small pot. This year's seedlings only had five leaves, and several generations of old seedlings began to burn the leaf tips, and the leaf surface was less glossy, unlike the big pot growth. According to the test, the growth of Cymbidium Cymbidium not only needs to be moist, but also needs the surrounding air to be moist to meet its physiological needs.
The requirements for large pot cultivation of Cymbidium Cymbidium in large pots are as follows:
1) 50% of rotten leaf soil, 40% of red brick fragments and 10% of husk or husk carbon;
2) 40% coarse river sand, 20% Lentinus edodes, 30% rotten leaf soil and 10% loess;
3) Shale crushed material 60%, sapropelic soil 30%, weathered soil 10%.
There are three layers of plant materials in the pot, that is, large, medium and small, large grain eggs, large layer, hydrophobic, breathable and moisture keeping, 40% of the pot height, 5% of the middle layer of medium grain jujube, and small particles with soil for planting orchids. Before planting orchid, first wash the orchid basin and large and medium-sized particles with water, and then soak them thoroughly with water, and then plant orchids on the bottom of the basin respectively.