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有些花木如腊梅、五针松、罗汉松,在扦插时,插穗生根少,有的甚至不生根。但经过一定的技术处理,不仅能生根,而且还能多生根和缩短育苗时间。现将其技术措施简介如下:一、选择插穗:母树的年龄、生长状况和枝条的着生部位、质量等因素决定着插穗生根的难易。所以最好在品质优良、生长健壮、无病虫危害的幼龄母树上,选择当年生、中上部、向阳生长的叶芽饱满、枝条粗壮、节间较短、生长势强的枝条作插穗。二、环剥枝条:对被选作插穗的枝条,在树木生长期间,用小刀在其基部进行环剥处理(即环状剥皮)或用扎丝等捆扎物扎缚,再经过1～2个月后
Some flowers such as plum, Pinus, Podocarpus, cuttings, cuttings rooted less, and some do not even take root. But after a certain degree of technical treatment, not only can take root, but also more root and shorten the breeding time. Now the technical measures are as follows: First, the choice of cuttings: the age of the mother tree, growth and branches of the birth position, quality and other factors determine the ease of cutting rooting. Therefore, it is best to grow in the good quality, robust, pest-free young mother tree, choose the year, middle and upper part, sunny growing buds, branches thick, internodes shorter, growing strong branches for cuttings. Second, girdling branches: branches were selected for the cuttings, during the growth of the tree, with a knife at the base of its girdling treatment (ie, ring peeling) or tied with a bundle of 扎, and then after 1 or 2 Month later