Techniques for promoting fragrance of orchids

First, orchids like semi-shade, but can not be placed in a dark place, otherwise, because it can not accept light for photosynthesis for a long time, poor growth, there is no way to produce organic matter to supply honey glands to brew fragrant honeydew, so it is not fragrant even if it blossoms. It should be placed in a place with strong light but shade, and in winter, it should be placed in a sunny place, and the basin should be turned once a half month to make it receive light on all sides.

Second, the basin should be changed in time to keep the basin soil fertile. Except for extreme heat, severe winter and stopping fertilizer application before and after flowering, thin fertilizer solution dominated by phosphorus should be applied every half month, so that orchids have the ability to supply nectaries to make honeydew and accumulate and store.

Third, the cold tolerance of orchids is poor. Cymbidium and Cymbidium should be more than 3 ℃, and Jian Orchid and Cold Orchid should be more than 10 ℃, otherwise, they will be easily frozen, affect flowering, or barely blossom, but honeydew freezing can not give off fragrance.

Fourth, in the greenhouse, greenhouse or shade shed where a large number of orchids are placed or planted, attention should be paid to isolating different varieties and not mixing them, so as to avoid pollen mixing and change the original good fragrance performance. Orchids should be far away from toilets and kitchens where there is a greater possibility of pollution, so as not to cause dysfunction and decline of honey glands due to pollution, affecting fragrance.

5. Orchids are prone to bacterial diseases, such as anthrax, leaf spot, black rot, and viral diseases such as black spot and necrosis. they are also vulnerable to shell insects, red spiders and whitefly. If they are not culled and treated in time, the orchids will be so injured that they are unable to accumulate nutrients to supply honey.