一九六九年,我场遵照毛主席“备战、备荒、为人民”的伟大战略方针和“绿化祖国”的伟大号召,开展了油松山地育苗。几年来积累了一些经验。目前一年生出圃苗一般高5—12厘米,地径0.15—0.25厘米,亩产18—21万株;二年生出圃苗一般高10—20厘米,地径0.2—0.35厘米,亩产17—20万株。现将我们的作法简介如下: In 1969, in accordance with the great strategic principle of “preparing for and preparing for the poor and serving the people” of Chairman Mao and the great call for “greening the motherland,” our field carried out seedling cultivation in the oil-pine mountains. Over the past few years accumulated some experience. Currently annual nursery stock is generally high 5-12 cm, diameter 0.15-0.25 cm, per mu 180,000 2-10000; biennial Nursery Height 10-20 cm, diameter 0.2-0.35 cm, 17-20 million mu . Here is a brief overview of our practices: