Cultivation Techniques of Butterfly Orchids
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Phalaenopsis orchids must strictly control the temperature, not too high or too low. The optimal temperature is 15°C to 18°C ​​at night, and the daytime temperature is 23°C to 25°C. Continuous low temperatures below 14°C can cause the growth of buds to be blocked and the development is unfavorable. Even the frostbite of the bracts, the abnormal development of the flowers, completely loses the ornamental value. The excessively high temperature (above 20°C in the night and sustained high temperature above 27°C in the daytime) will accelerate its metabolism and significantly reduce the flowering period. The water needed for the entire flowering period should be lower than usual, and under the premise of not affecting the normal growth of the plant, the dryness of the medium will help the flower look beautiful. Humidity is approximately in the wetness of the fingers in the hand-pinch media. Do not over-dry or over-wet. If the medium is too dry, it will cause the leaves to clog, resulting in "permanent wilting", causing the leaves to wrinkle and dull, which seriously reduces the overall ornamental value. However, the cultivation medium is too wet, and the oxygen in the seedling bag is squeezed out by the water. If it lasts for a week, the growth of the plant is frustrated and the leaves are crushed, which will seriously affect the development of buds. The flowers are small and dull, and the petals are burnt yellow. No appreciation of value. The light intensity required for flowering plants is very different from that of the previous period. In the early period, shade and shading are required. During this period, the shade must be removed. The strong light intensity helps the flower to stretch, the arrows are evenly distributed between the flowers, and the flowers are bright. In this case, there is no need to increase the light intensity, and it is not necessary to follow a certain fixed light intensity data. Phalaenopsis is produced in a high-temperature and high-humidity area. The entire growth cycle requires high air humidity. Especially in the later period, the relative humidity should be between 80% and 85%. Higher air humidity is conducive to the vivid bloom of flowers. The relative humidity should not be less than 80%. If it is less than 60%, the flowers will not shrink. The air should be dry every day from noon to the afternoon. When the sun is strong, sprinkle water several times in the open space to facilitate the increase of air humidity, and it is beneficial to cool down. At this time, we must pay attention to the air circulation inside the room, let indoor air exchange with the fresh air outside, and provide enough fresh carbon dioxide for the Phalaenopsis. The more carbon dioxide in a certain space, the better the flower opening time. In the later period, the Phalaenopsis plants basically stopped growing or grew weakly. During this period, basically no fertilization was required, and the application of more fertilizers would cause rot. However, the author's comparison in production shows that a small amount of fertilization contributes to flowering, and the quality of the flowers is also good, while the unfertilized plants show that the flowers are long and hard and brittle, the inflorescences are too long, and the flowers are too large. Thin liquid fertilizer is applied once every half day, and the ratio of fertilizers should be given priority to phosphorus and potassium fertilizers.