Winter is the dormant period of Guolan, and it is also the dormant period of pests and diseases, but it cannot be neglected and left unchecked. Before entering the winter, the orchids should be prepared for winter, and the orchids, orchids and bluegrass should be strictly disinfected once or twice to prevent the pests from lie in the winter. In addition, it is necessary to apply a compound fertilizer once, so that the bluegrass has sufficient nutrition for wintering, to ensure the normal healthy hair growth in the following year, and to meet the needs of flower buds.
In winter, there is less rain and the climate is dry. The dust on the surface of the national orchid should be properly removed to prevent the dirt from being deposited. The scrub should be selected at noon with sunlight. After cleaning, it should be ventilated to make the blue leaves quickly collect water. Some Lan friends believe that Guolan does not need water during winter dormancy, so it will not be watered for a long time. In fact, this is a misunderstanding. Although Guolan winter do not need as much water as the growing season, it also needs a proper amount of water to maintain normal growth. If you do not water for a long time, it is likely to cause problems such as empty roots, atrophy of the fake bulbs, and early aging of the blue leaves. On the contrary, if the water is too much, it is prone to rotten roots and rotten arrows.
In the southern Guangdong, Guangxi, Fujian, Yunnan and other places, after the winter to maintain 10 ° C to 20 ° C, is the growth season of the national orchid, do not need to be wintered. After the winter solstice, the temperature is maintained above 5 °C. This temperature is the timing of Chunlan, Chunjian and Lianhualan sprouting seedlings. If you want to make it bloom, you need to control the temperature below 5 °C, inhibit the growth of flower buds, and carry out artificial vernalization.
The frost in the Yangtze River Basin has dropped to around the winter, and the temperature is generally above 10 °C. This period is called Xiaoyangchun, which is also the growth period of Guolan. Until the winter solstice, the climate drops to 5 ° C to 10 ° C, the temperature before and after the Great Cold fell to 1 ° C to 5 ° C, the real winter management should be from December to February of the next year. At this time, we must pay attention to the shelter, in order to prevent the cold wind from directly blowing the blue seedlings, causing the blue leaves to be pointed and withered.
In the north, the temperature in the north is low and the air is dry. Pay attention to maintaining the humidity and spraying the water properly. Outdoor orchids must be covered, to prevent frost and frost, so as not to freeze the bad blue leaves and seedlings.
Early spring is the time when the cultivators can't be numb. "February spring breeze is like scissors." If the blue basin is moved out of the room or removed from the shelter too early, it is likely to be hit by the cold wind.
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