油松是我省荒山造林的主要树种之一。材质好,生长快,适应性强,深受群众喜爱。直播油松,操作简便,减少了育苗和栽植手续,节省人力。为了认真落实毛主席“绿化祖国”的伟大指示,摸索油松直播造林的规律,大力发展油松,加快绿化步伐,我们于1972—1973年春,在蒲城县高阳公社张家山开展了油松直播造林试验。 Pinus tabulaeformis is one of the main tree species afforestation in the barren hills of our province. Material is good, fast growth, adaptability, loved by the masses. Live pine, easy to operate, reducing nursery and planting procedures, saving manpower. In order to conscientiously implement Chairman Mao’s “Green Motherland,” the great instructions, to explore the law of direct seeding pine, vigorously develop the pine, accelerate the pace of afforestation, we in the spring of 1972-1973, Pucheng County, Zhang Yangshan commune launched live pine Afforestation experiment.