插穗育苗简便易行,其优点是:第一可以补助播种育苗不足;第二还可以保留原母株的优良性状;第三生长迅速,能在短期内获得大量的苗木。但是,不同树种的插穗,有的很容易生根(如杨、柳半月左右);有的则较难(如松树、云杉和柏树等半年以上);有的则至今尚无法生根(如朝鲜柳)。人们在生产实践中,为了提高扦插成活率,用化学、物理方法对插穗进行处理,来促使插穗苗木早生根、多生根。下面介绍几种促进插穗生根的方法。 1、浸水处理:扦插前,将插穗放入水中 Cuttings nursery easy, its advantages are: the first can help sow seedling shortage; the second can also retain the original mother of the fine traits; third rapid growth, in the short term to get a lot of seedlings. However, cuttings of different species may easily be rooted (such as Yang and willows for about half a year); others are harder (such as pine, spruce and cypress trees for more than six months); others may not yet be able to root ). People in production practice, in order to improve the survival rate of cuttings, with chemical and physical methods on cuttings to promote cutting seedlings early root, more rooting. Here are some ways to promote rooting cuttings. 1, immersion treatment: cuttings, cuttings into the water