在国兰大家族中,尽管绝大多数兰花(春兰、蕙兰、春剑、莲瓣兰、寒兰、墨兰)在冬季能现蕾,但在全国范围内春节能正常开花的只有墨兰(图1)。因此,要想让兰花在春节都能开花放香,必须采取有针对性的技术措施。具体而言有以下5个方面:一、顺其天性,低温“春化”要充分。大自然中的兰花冬季一般生长在平均气温0℃~15℃左右的环境中,营养生长宣告结束,进入休眠期。处于休眠期的兰苗虽 In Guolan family, although the vast majority of orchids (Chunlan, Cymbidium, Chunjian, Cymbidium, Cymbidium, Cymbidium) can bud in the winter, but in the country during the Spring Festival can only flowering normally Cymbidium (figure 1). Therefore, in order to make orchids in the Spring Festival can bloom fragrant, must take targeted technical measures. Specifically, the following five aspects: First, along its nature, low temperature, “vernalization” to be full. Nature orchids in winter generally grow in the average temperature 0 ℃ ~ 15 ℃ environment, the end of vegetative growth, into the dormant period. Lan Miao in the dormant period though