广玉兰高空压条是常用的繁殖方法。但在实践中我们经常发现,要么压的子株没有生根,要么就是生了根剪下栽植后却大量死亡,以致成功率很低。故此,我们必须掌握好关键环节中的技术要领。一、压条时间:长江以南以五月上中旬梅雨季节到来之前为宜,而长江以北可稍晚一点,但最好在雨季到来之前进行。二、压条选择:选择20-50cm长,两年生健壮的枝条为最好;结合修剪利用母株基部丛生的枝条亦可。三、扦插基质:选用经过太阳暴晒或药物消毒的疏松、肥沃、保水性好的沙质壤土。四、操作方法:在距压条基部2cm处,按1cm左右的宽度作环状剥皮,落刀深度要不伤木质部。环剥后,有条件的要用1∶100的萘乙酸酒精溶液沾棉球徐一下环剥处,然后在压条基部用裁好的塑料薄膜扎成喇叭状,上口略敞,填满稍潮湿的基质并在上部扎紧即可。注意事项:要使环状切口正好包在中央,太偏会生根不良或不生根,另外,开头填放的基质也不要太湿,以免引起新伤口腐烂,不易形成 Magnolia high altitude bar is commonly used breeding methods. However, in practice, we often find that either the pressure-bearing sub-strains did not take root or that they died after root-cutting and planting and the success rate was very low. Therefore, we must master the key technical essentials. First, the pressure of time: south of the Yangtze River in May before the arrival of the Meiyu season is appropriate, while the north of the Yangtze River may be a little later, but the best before the arrival of the rainy season. Second, the choice of pressure: Choose 20-50cm long, two-year-old robust branches for the best; combined with the use of pruning branches tufts can also be. Third, the cutting matrix: selection after the sun exposure or drug disinfection loose, fertile, good water retention sandy loam. Fourth, methods of operation: at the base of the pressure strip 2cm at a width of about 1cm ring peeling, knife depth or injury to the xylem. Girdling, the conditional use of 1: 100 naphthaleneacetic acid alcohol solution with cotton ball Xu around the stripping Department, and then cut the base of the plastic film cut into a trumpet-like, slightly open upper mouth, filled with a little damp The matrix can be tightened in the upper part. Note: To make the annular incision just wrapped in the center, too partial will take root or not rooting, in addition, the beginning of the matrix filled should not be too wet, so as not to cause new wound decay, difficult to form