Also talking about the humidity of indoor orchid cultivation in North China

The growth environment of national orchid is similar to that required by other plants, such as water, sunlight, nutrients, temperature, humidity and so on. However, in these conditions, if the national orchid grows normally, the conditions needed by the national orchid have its own particularity. For example, the requirement of air humidity is an important one of many conditions. Generally speaking, the temperature for the growth of national orchid is between 18 and 28 degrees, and the humidity is above 80%. In the Yangtze River basin and the south, due to the warm climate, abundant rainfall and humid air, the humidity requirements of the national orchid are hardly affected. However, in the northern region north of the Yellow River basin, due to high air pressure, dry climate and relatively low air humidity, especially in the annual winter heating period and spring, the indoor temperature is about 20 degrees, while the air humidity is only about 40%. Can not meet the needs of the growth of the national orchid. Therefore, how to increase the air humidity is the key for northern orchid friends to raise the national orchid indoors. To this end, many orchid friends try their best to increase air humidity by adding water plates, humidifiers and many other ways to increase air humidity. In my opinion, instead of increasing the humidity of the air in the outside world, it is better to use wet orchid cultivation to improve it.

One is in orchid pots and planting materials. The orchid basin chooses the barrel-shaped mud basin or the purple sand basin with porous basin wall for easy ventilation. Plant materials choose granular plants, which can be 10% charcoal (acidified), 40% volcanic stone, and 50% immortal soil mixture. The choice of mixed plant material depends on Lanyou's own experience, but it must be granular plant material. In the orchid basin, there are foam blocks below 1ax 3, a mixed plant material with a diameter of more than 1cm in the middle, and a plant material with a diameter of about 1cm on the basin. Therefore, the use of granular plant material is suitable for wet orchid cultivation, the humidity is high and will not hurt the root because of the large water. The plant material should be fully soaked in water and disinfected before it is put on the basin. Keep Langen in full contact with the plant when putting it on the pot.

The second is basin noodle treatment. Orchid friends in the south often use water moss on the basin to increase humidity. However, the indoor humidity in the north is small, it is not easy to grasp the dry and wet of the basin soil after laying water moss, and the basin plants are not easy to survive, so it is not suitable to use this method. In general, the height of the plant should be located at the Reed head 1 of bluegrass, but the height of the mixed plant can be higher than that of the Reed head 1cm because of its large particles and good air permeability. Planting orchid by wet method can maintain humidity.

Third, the method of using water. Generally speaking, watering should be carried out once every 4 days in 3MUR. If every snowy or rainy day, the air humidity is larger, depending on the weather conditions. Spray water on leaves once a day in the morning and once in the afternoon (be careful not to spray into the heart of bluegrass to prevent rotten seedlings). The basin plant material should also be sprayed with water to keep it moist. It should be noted that: wet orchid cultivation to control the number of watering, once the water is cut off for a long time, the immortal soil in the plant is dry, it is difficult to make it contain enough water.

The above method has been used for a long time, and the effect is good. The humidity in the room can be kept at about 80%. Orchid friends can master it according to their own actual situation. For reference only. (Fu Tao)