In my last article "Inorganic fertilizer can never replace the role of organic fertilizer", I talked about the influence of inorganic fertilizer and organic fertilizer on the plant growth of orchids, as well as the opening and fragrance of flowers, which is obvious, not only that, but also indirectly has a certain impact on the formation of flower color and the elevation of flowers. The nutrients of chemical fertilizers are relatively simple, and in the process of use, it is necessary to focus on the mixing of trace elements, otherwise there will be symptoms of nutrient deficiency, and long-term application of organic fertilizer to cultivate orchids has no such drawbacks. On the topic of the difference between the role of inorganic fertilizer and organic fertilizer on the growth of orchids, it is intended to attract everyone's attention, and it will not be discussed because the topic of this article refers to something else.
Many orchid friends are very confused about the giving of sunlight in orchid cultivation, and the demand for sunlight is different for different orchid species, for example, Jianlan needs more sunlight than Chunlan and Huilan, and Huilan likes sunlight more than Chunlan, and the same orchid is stronger than the weak seedlings and likes sunlight. Then different orchid varieties grown in the same environment cannot be treated differently due to different needs, and can only be given a median value or as understood by the cultivation manager. In view of this, it is necessary to grasp a key point, that is, the best temperature for orchid growth is about 28 °C, and above 30 °C, it will enter a semi-dormant state, and the higher the temperature, the higher the transpiration will correspondingly increase the energy consumption, so the growth will inevitably slow down.
According to the interpretation of professionals, the orchid root system appears to grow in a ring, which is caused by the sensitivity of the plant to sunlight.
The root system of the orchid can not be directly exposed to sunlight during the growth process, otherwise the epidermis will be green and not grow well, and the leaves can promote the growth of the root system is the leaf in photosynthesis, so when the photosynthesis is strong, the root growth is good, and the corresponding root growth is weakened or stopped when photosynthesis is weak or stopped, which is the principle that photosynthesis can promote the growth of the root system.
In the same way, strong photosynthesis also promotes the germination of new shoots, especially in winter during low temperatures. At the end of last year, we cleaned all the moss on the roof of the shed, and closed up the double-layer shade net, and found that the new sprouts the size of soybeans were bred after the spring orchid "green cloud" flowers bloomed for a long time. In addition, I asked a friend to buy the Chunlan "Kuo Cang Lotus" during the Chunlan Exhibition, and went home to establish a double insurance on the branch, and the two seedlings were weak after the ridge grass each had only one old root system, and I checked it two days ago and found that there were 3 new shoots, which fully reflects the importance of giving full sunshine. Under the irradiation of sunlight, photosynthesis is enhanced, which is the most effective promotion of new shoots and new root growth, of course, all this is inseparable from the effective support of temperature.
In summary, we need to find ways to cool down the orchid when the temperature in the orchid cultivation environment exceeds 30°C, for example, by opening the shade net or turning on the cooling equipment. That is to say, within 30 °C, just give more sunlight, do not have to consider the different needs of each variety for sunlight and give it separately, after all, rough cultivation management can not be so fine, in short, moderation can be stopped. Ladders such as blue light, purple light, and orange light are given in the tissue culture room for different varieties according to their aptitude, and orchid lovers can only be treated in general. On April 22, 2024, Wan Yunkun was in Guoxiangju
Description: When the orchid is watered manually, it completes the supply of beneficial bacteria space, insect control and organic fertilizer.
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On April 22, 2024, Wan Yunkun was in Guoxiangju