如何水栽国兰?
国兰栽培素来是土栽。现在,用水栽使种植方法得到改革。双层容器陶粒水栽法栽培及管理简易、省工、省钱、卫生、无害、占用面积小、病虫害少、美观(可观花、观叶和赏花),是家庭居室美化的好方法。
(1)取容器一套,即内层容器是有孔塑料筛,外层容器是无底孔塑料瓶,内外容器口径相等。
(2)取苗:把盆栽或地栽的国兰去除根部泥土,用清水洗净。
(3)修剪:剪去烂根、老根、病虫害根,剪去残弱枝和黄叶,留下强壮根叶,浸于稀释花卉营养液一昼夜等候上盆。
(4)上盆:把已修剪并浸过营养液的底兰株栽到内容器的塑料筛上,塑料筛底4个小孔(左右上下各挖1个,把兰根分为4组,各组穿过1个小孔,让根部直插筛下,兰头紧靠筛底,放进洗干净的底陶粒,将兰花固定站立,然后把内容器置于外容器上,外容器加入清水和花卉新根于水中,上半年上盆带有花箭,下半年即可开花。
(5)管理:换水一般15~20天1次,换水时要加入花卉营养液。若发现水少了,应适当加入清水,水要达到根头。施肥除加进花卉营养液外,还需根外追肥,可用稀释的花卉营养液,每3~5天施1次。要促进生长和提早开花,可用花卉营养液注射兰头,每次注射半毫升即可。开花期不要喷水于花朵上,台风或暴雨来临时应把兰花移入室内或避风雨处,防止落花。花凋谢后应把花枝剪去,促进下次开花。若发现有些叶片变黄或发生病虫害,应把病叶剪去。
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