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兰花以“天下第一香”著称,但有时兰花开花而不香。对此,应采取促香措施。一、兰花喜半阴,但不能置于阴暗无光的地方,否则,由于其长期不能接受光照进行光合作用,生长不良,无从制造有机物供给蜜腺体酿造放香的蜜露,因而即使开花也不香;应放置在光照强但有遮荫的地方,冬季更要置于阳光充足处,并每半月转盆一次,使之四面受光。二、要及时换盆,使盆土保持肥沃,除酷暑、严冬及花期前后停施肥料外,应每半月施用以磷为主的稀薄肥液,使兰花除维持生长发育的养分外,有供给蜜腺体酿造蜜露并积累储存的能力。三、兰花的耐寒力较差,春兰、蕙兰要在3℃以上,建
Orchid known as “the best fragrance in the world”, but sometimes the orchid bloom without fragrance. In this regard, should be taken to promote incense. First, the orchid hi half Yin, but can not be placed in a dark place, otherwise, due to its long-term unacceptable light photosynthesis, poor growth, no organic matter from the production of nectar brewing incense honey dew, even if the flowering is also Not fragrant; should be placed in the light of strong but shady places, winter should be placed in a sunny place, and turn basin once every half moon, so that all four light. Second, to change basins in time to make basin soil fertile, in addition to heat, winter and flowering before and after the stop fertilizer, should be applied every half month of phosphorus-based thin fertilizer, the orchid in addition to maintaining the growth and development of nutrients, there is supply Nectar brew honey dew and the accumulation of storage capacity. Third, the cold hardiness of orchids, Chunlan, Cymbidium to be above 3 ℃, built