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杜鹃根系对排水透气要求很高,所以有人就在盖好底孔之后垫上一层瓦片、碎石块等作为排水层。不过厚度各有不同,有的厚(甚至达到花盆高度的1/2),有的薄,还有人不垫。我经反复尝试,认为过厚或不垫都不好,特别是达到盆深一半的做法尤为欠妥。也许有人会说,杜鹃是浅根性发状根群,无主根,又多分布在盆土中上层,盘曲横向扩展。根据这一特性,将盆底垫厚一些,使土层变薄,保证透气,有什么不对吗?殊不知,这样大
Rhododendron root drainage requirements of ventilation is very high, so some people in the bottom of the hole after laying a layer of tiles, gravel, etc. as the drainage layer. But the thickness varies, and some thick (or even reach the height of the pot 1/2), some thin, there are people not pad. After repeated attempts, I thought it was not good to have too thick or not enough pad, especially the method of reaching half of the pot depth was particularly defective. Some people may say, rhododendron is shallow root hairy root group, no main root, but also more in the upper basin, soil, horizontal expansion. According to this feature, the pelvic floor pad thicker, so that thinning of the soil, to ensure breathability, what is wrong? As everyone knows, so big