一、前言丹凤县武关公社八一林场是陕西省商洛专区的一个队办林场。该场于1954—1955年在山上栽植的核桃(3千多株),到1957年即有8株开始挂果,创造了核桃4年结果的先进事迹。此后,产量逐年增加,至1965年干果总产量达到3778.3斤,最高单株产量达60斤。八一林场核桃生产的实践表明,核桃上山不仅是可能的,且能够实现早结果、早丰产。 I. Introduction Danfeng County Wuguan commune Bayi Forestry Center is a team of forestry in Shaanxi Province. The field of walnuts (more than 3,000) planted in the mountains from 1954 to 1955 started to fructify in 8 in 1957 and created the advanced deeds of 4 years of walnut fruit. Since then, the output has been increasing year by year. By 1965, the total output of dried fruits reached 3778.3 kg and the highest single plant output reached 60 kg. The practice of walnut production in Bayi Forest Farm shows that walnut uphill is not only possible, but also can achieve early results and yield early.