Discussion on the place of raising orchids

Lan Hui's primitive living environment usually grew between mountains, forests and valleys, with high terrain and forest shade, forming a small living environment with small temperature difference, high atmospheric humidity and clean air. Therefore, in the artificial cultivation of national orchid, first of all, we should consider that there should be no direct light and appropriate amount of sunlight; secondly, we should consider having a suitable growth temperature, cool summer and warm winter; thirdly, we should consider that there is a large relative humidity and fresh air in the place (good ventilation).

The first rule of raising orchids summed up in the Quran book is to like the sun and hate heat, cover up and hate the secret. If there is more Yang, the flower is good, and if there is more Yin, Ye Xiu. Therefore, it is best to choose a refreshing place from northwest to southeast, with water streams or pools to increase humidity. Shading now mostly uses a shading net of 50% / 70%. Cymbidium and Cymbidium must have strong light, followed by Jian Lan and Mo Lan. As the sun's angle changes all the year round, the spring wind and the sun are warm and warm, with less shading to facilitate the sprouting of new buds, warm and stronger. To summer and early autumn, depending on the fertility needs of its orchid species, it should be sheltered appropriately. If there is a mobile light equipment is the most ideal, easy to control the amount of sunlight. Even in spring and summer, when sent to rainy or cloudy days, you only need to remove the shading equipment to increase the light transmittance; on sunny days, you can move the shading equipment to reduce the light transmittance and grow in Lilan forest.

As described in the ancient books, "the cold weather should be exposed and the sun is fierce" (Qing, Zhu Kerou); "the winter does not come out, the summer does not return, the autumn is not dry, the winter is not wet" (Ming, Li Kui); "like yang and hate heat, like rain and hate dampness, happy death and evil secret, happy wind and bad habits" (Qing, district gold)

(strategy) and so on, are to clarify the coordination of lighting and ventilation in orchid places, which has a certain dialectical truth.

Rare orchid species are usually managed in glass greenhouses or plastic film greenhouses under the shade. The most suitable temperature for orchid growth is 20ml. When the temperature drops in winter, the orchid room should be sealed and insulated. At the same time, the light net should be opened to allow direct sunlight in the greenhouse to increase the room temperature. When these measures are still unable to raise the indoor temperature to 20 degrees, a heating device should be provided to enable Lanhui to continue to grow in winter. At present, a favorable environmental humidifier is produced abroad, and the fog point is very small. Under the condition of suitable temperature, it is very important to increase the relative humidity of the orchid environment. If there is no humidifier, the spray head of the ordinary sprayer can be installed on the high-pressure water pipe. When the environment is dry, the spray rammer is often sprayed to increase the humidity to grow the Lilan plant.