杨树是我省四旁绿化和造林的主要树种。它生长快,适应性强,繁殖容易,成材早,用途广,群众已有栽植习惯,深受群众欢迎。为了落实毛主席关于“抓革命,促生产”,“备战、备荒、为人民”的伟大战略方针和“农业学大寨”,加速“绿化祖国”的步伐,尽快实现我省林业上《纲要》及普及大寨县的要求,大力推广和发展杨树良种是有很大现实意义的。十几年来,我省引进了不少杨树新品种,经各地群众试种评比的结果,大家都认为北京杨和新疆杨是两个优良杨树。经过几年的群众科学实验和种条繁殖,北京杨已有一 Poplar is the main tree species afforestation and reforestation on the four sides of our province. It grows fast, adaptable, easy to reproduce, become useful, wide use, the masses have planting habits, welcomed by the masses. In order to implement Chairman Mao’s great strategic guideline of “grasping the revolution and promoting production,” “preparing for war, preparing for the poor and serving the people,” and “learning from Dazhai in agriculture,” speeding up the pace of “greening the motherland,” realizing the “outline” of forestry in our province as soon as possible, And popularize the requirement of Dazhai County, it is of great practical significance to vigorously promote and develop poplar varieties. More than a decade, the province introduced a lot of new varieties of poplar, after all the masses try the results of appraisal, we all think Beijing Yang and Xinjiang Yang are two good poplar. After several years of mass scientific experiments and seed breeding, Beijing Yang has one