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廊坊杨是河北省林业厅于1998年定名推广的杨树新品种,其生长迅速,材质好,抗性强,很受市场欢迎,但它扦插育苗与其他杂交杨相比生根困难,必须采取相应的催根技术和管理措施才能达到当年育苗、当年成苗的目的。 1.扦穗选择。扦穗长度15—20cm,粗度1cm左右,上剪口平剪,剪口芽距剪口不超过1cm,下剪口斜剪,呈马蹄形,注意剪口不要劈裂。扦穗按粗细分级,每50根一捆,准备催根。 2.催根。①沙藏催根。在秋冬进行,首先挖沙藏沟,沟深
Langfang Yang is a new poplar variety popularized by the Forestry Department of Hebei Province in 1998. Its rapid growth, good material quality and strong resistance are very popular in the market. However, it is difficult to cut rooting seedlings compared with other hybrid poplar and must be taken correspondingly Root technology and management measures to achieve the year of nursery, then the purpose of planting seedlings. 1. Choi ear choice. Cuttings spike length of 15-20cm, coarseness of about 1cm, on the cut flat cut, cut away from the cut not more than 1cm, the next cut oblique cut, horseshoe-shaped, pay attention not to split the notch. Scrapers are graded according to the weight of each bundle of 50, ready to urge the root. 2. Promote ① sand storage reminder. In autumn and winter, first dig sand ditch, ditch deep