Environmental management of orchid cultivation in Beihai area

Illumination: orchids need plenty of sunlight for growth, and orchids are most suitable for sunlight in the morning. Orchids, cold orchids and spring orchids should be before 8 am and 9 am. Orchid plants avoid strong direct light most, and the maximum intensity of light can reach 15000 lux when the temperature is above 30 degrees. It is easy to burn the orchid leaves, so that the orchid plants wither. Therefore, it is best to use a double-layer moving shade net in orchid cultivation places in order to adjust the illumination. the shading standards in winter are: spring orchid 30%, Chardonnay 40%, ink orchid and cold orchid 50% 60%; the temperature on the balcony and roof is very high in summer, depending on the planting environment, add 10%-20% more than the above shading standard.

Temperature: the optimum temperature of orchids is 10 ~ 25 degrees during the day. At night, the orchids of the four seasons. Chunlan is 20 degrees at 5m / m. Ink orchid, cold orchid for 10 Mel 25 degrees, generally in the range of 8 Mel 33 degrees, orchids can grow normally, below 3 degrees and above 34 degrees, grow slowly, or even stop growing.

Humidity: the humidity in the orchid shed can be kept between 70% and 85%, with a minimum of not less than 50%. To solve the humidity problem, generally take the ground water basin or spray humidification. If it exceeds 85%, it should be ventilated and dehumidified.

Rain Water: clean Rain Water is very good for the growth of orchids. The air in Beihai area is clean and there has never been acid rain (below PH5.6). It is a good place to grow orchids. However, in rainy months, it is also necessary to do a good job of rain prevention, because the basin soil is too wet for a long time, resulting in lack of oxygen and so on.

Wind: ventilation is an important task of raising orchids. The orchid shed is well ventilated and the wind is softer. In the Beihai area, except for typhoons, southwest and north winds, the wind speed is usually about 3 meters per second, which has no effect on orchids. It is better to see the orchid leaves swing gently without damaging the leaves.

Foggy day: the foggy day in the North Sea starts from October to April of the following year. The month with the most foggy days, sometimes lasting for three or four days, makes the orchid shed too humid, so we should pay attention to ventilation and dehumidification.

Evaporation: pay attention to the amount of water evaporation, which is also one of the conditions for raising orchids. The evaporation in this area accounts for more than half of the months when the evaporation is more than 170 mm, and there are 6 months in a year. Therefore, attention should be paid to the moisturizing of the air in the basin soil and the orchid shed.

In order to raise orchids well, in addition to the above knowledge, there are also plant materials, fertilizers and pest control, which are introduced in the following month management.

North Sea Orchid Association