桂花树扦插技术
桂花树扦插技术,扦插具有取材容易、操作简单、节约繁殖材料、繁殖系数高等优点,成活率可达80%以上。
1、桂花树插床准备
插床应选择地势较高、排水良好、水源较近的地方。苗床宽1米,长度不限,但一般不超过20米。插床四周用砖叠砌,高出地面10~25厘米。床内铺10~20厘米厚的基质。基质可选择微酸性砂壤土、河沙、泥炭等。
2、桂花树插穗的选择
插穗应该选取10~15年生,树冠外围中上部,生长健壮,无病虫危害的当年生枝,长度一般在10厘米左右。插穗上端带1对叶,下端从节下0.5厘米处剪截,剪口稍倾斜。插穗应随剪随插,防止失水萎蔫。

3、桂花树扦插方法及插后管理
插前浇1次透水,一般多行条插,行距10厘米,株距5厘米,每平方米插200株。插入深度:长穗一般插入2/3;短穗插则全部插入,仅上部的芽露出基质。插芽随即浇透水,使插穗和基质较密。
扦插后,在苗床上方搭弧形拱棚,棚顶距床面50~60厘米,于棚上覆盖塑料薄膜,在塑料棚顶上方1米处,再搭一个高架阴棚,并在东、南、西三侧挂帘,防止侧光照射。
插床的透光度保持在30%左右,温度控制在25℃左右,每天清晨通风1~2小时。
扦插后30~50天即可愈合生根,60天以后可以减少遮光时间,以后即可全部揭除遮荫物,以上就是桂花树扦插技术。
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