Analysis on the reasons for the unfragrance of orchids

Many orchids are very depressed that their orchids are not fragrant. In fact, orchids are not fragrant in addition to the reasons of varieties and daily maintenance methods. This article is an analysis of the reasons why orchids are not fragrant. First of all, flower friends should know that the fragrance of orchids is different from that of hyacinth and lilies. Orchids should not get close to smell, too close, not very fragrant, air circulation will have bursts of fragrance.

The following is an analysis of the reasons why orchids are not fragrant. Flower friends can compare and check according to their own actual situation.

1. Variety degradation: due to mixed planting or placement with unscented varieties, disturbed by unfragrant pollen, or orchids too close to the pollution source and contaminated, resulting in nectary tissue dysfunction until decline, so it can no longer emit fragrant honeydew.

Solution: prevent degradation, stay away from pollution sources, and do not mix with unscented varieties and other orchids at the same flowering stage, so as to prevent the natural degradation of pollen.

2. Lack of light: because of the shade-tolerant habit, orchids are often misunderstood as orchids do not need light, but keep them indoors or in high-density shade for a long time, so that orchids can not get the energy needed for photosynthesis, even if there is a small amount of astigmatism. Orchids can only produce trace amounts of organic matter to maintain their survival, not to mention accumulating nutrients to supply the nectary system to make honeydew.

Solution: adjust the light, bluegrass, full light in winter and spring, semi-shade in summer and autumn (shade degree is 50%, 60%), let it receive scattered light or diffuse light, but do not move outside, indoor cultivation, should be around noon with 40 watt fluorescent lamp exposure for about 5 hours, can also be irregularly moved to the tide, sunset windowsill.

3. Lack of fertilizer: although orchids have little demand for fertilizer, if fertilizer is ignored, it can easily lead to withered leaves and falling buds, which is very disadvantageous to its growth and development, so its honey glands naturally can not produce rich-scented honeydew.

Solution: apply more phosphorus and potassium fertilizer. During the growing period, the ratio of topdressing chlorine, phosphorus and potassium fertilizer was 3: 1.5: 0.5 in the early stage of flower bud differentiation, and that of nitrogen, phosphorus and potassium was 0.5: 3: 3: 2. The Autumn Equinox could also apply rarefied organic liquid fertilizer before and after ripening.

4. The temperature is too low: among the varieties that watch flowers in winter and spring, the fragrant cold orchid, ink orchid, spring orchid and four-season orchid are often affected by the cold current, the temperature drops below 0 degrees, the honeydew is frozen, and the fragrance can not be spilled out, of course, when the air temperature rises or after temperature adjustment treatment, the aroma can be emitted.

Solution: adjust the temperature, the florescence of cold orchid, ink orchid and spring orchid are easily affected by the low temperature below 0 degrees Celsius, honeydew is frozen, the aroma does not overflow, the temperature should be adjusted to 5 in time.