October Orchid Events in Shanghai

Key points of Orchid events in Shanghai in October

In October, the highest temperature in Shanghai in the daytime is about 27 ℃, and the minimum temperature at night is about 13 ℃. The weather above 30 ℃ is rare, and the minimum temperature is less than 10 ℃. The weather is mainly sunny and good, and Rain Water is less. Although there is cold air coming from time to time, the temperature picks up quickly. The average temperature throughout October will remain around 18-20 ℃, which is the golden period for orchid growth. At the same time, the daily management of orchids has also entered a busy period, summed up with two key points, namely, reducing dryness and strengthening grass.

First, reduce dryness.

The temperature in October is suitable, which is very conducive to the growth of orchids, but at this time, the wind is strong and dry, and the usual relative air humidity is only 30% 50%, which poses a threat to the normal growth of orchids. Therefore, reducing dryness should be our top priority in the orchid affairs in October and for some time to come. Generally speaking, there are several ways to reduce dryness:

1. Set up a water basin. A basin can be placed around the orchid or at the bottom of the basin, and the natural evaporation of water can be used to increase the humidity of the environment.

2, foliar spray. Foliar spray is a good way to increase humidity, and it can also clean orchid leaves. At this time, you can appropriately increase the number of spraying, you can spray 3-4 times a day, but it should be noted that the finer the water droplets are, the better, and the leaf surface is non-dripping.

3, moisturize the basin. At this time, the plant material on the surface of the orchid basin is very easy to dry, but there is no shortage of water in the orchid pot, so we should often use a sprayer to moisturize the plant material on the surface of the orchid basin.

4. Proper ventilation. Orchids like a well-ventilated environment, but at this time, in order to ensure air humidity, ventilation can be reduced appropriately.

5, in reducing dryness, we should also pay attention to a situation, that is, the orchid basin dries from the bottom up, especially when the orchid pot is suspended. Usually need to observe the bottom hole of the orchid basin, can take the method of placing the water support basin under the orchid basin to solve, at the same time should pay attention to watering thoroughly.

Second, strong grass.

As the Lan proverb goes: autumn strong grass is the key in the Shanghai area in October. Due to the rapid growth rate of orchids this month, and the last growing period of the year, the new grasses in spring and summer have grown up and are heading (false bulbs begin to grow). In order to achieve the purpose of strong grass, we can only start with strengthening the management of water, fertilizer and light.

1. Water management: orchids need moisture for growth and timely watering for autumn drying. Therefore, relatively speaking, watering this month can be more appropriate, always keep the plant moist, in order to meet the needs of orchid growth, even if there is too much water, it can also be resolved under the transpiration of orchid leaves and the blowing of the autumn wind, which is the essence of not drying in autumn.

2, fertilizer management: crops a flower, all rely on fertilizer in charge, orchids to grow strong, can not do without fertilization. The combination of root application and foliar spraying can be adopted for fertilization this month, and the concentration can be increased appropriately. The backwater time after root application can be extended to 10 hours, and even no return water can be given if it is applied lightly. The type of fertilizer should be compound fertilizer containing nitrogen, phosphorus, potassium and other trace elements.

3, light management: although orchids are shade-loving plants, their growth is still inseparable from sunlight. Moderate and sufficient light can make orchid plants produce and accumulate nutrients under photosynthesis, making orchid leaves tall, straight, wide and thick, pseudo-bulbs strong and round, and not easy to get sick. The temperature is suitable this month, the orchid can be fully illuminated below 25 ℃, and the sun can be exposed to the sun for two or three hours in the morning above 25 ℃.

4. Pest control. There are fewer diseases and insect pests this month, but they should still be prevented and can be sprayed with primary or secondary sterilization drugs; pests need to be prevented from being abused by red spiders, usually check the back of orchid leaves, or spray dicofol, omethoate and other drugs to prevent.

Third, what points to explain.

1, the above is my experience of raising orchids, only willing to help Lanyou, although the time is a little late.

2. China has a vast territory and abundant resources, and the climate varies greatly from place to place, and the environment and methods of orchid cultivation are also different. the above items can only be used as a reference for orchid cultivation in Shanghai area and family natural environment.

3, all of the above are for more than three seedlings of Chinese grass, weak grass, diseased grass, grass is another matter.

4. When I visited several orchid friends a few days ago, I saw that some of them had begun to turn the basin, and some of them had begun to refine the grass. I feel it a great pity that these matters might as well be put on next month.