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溧水县新桥公社地处丘陵山区,有山地面积约26680亩,为全县发展杉木较多的公社之一.前几年,公社营造杉木所需的苗木,大都从外地调进,苗木经过长途运输,质量又差,对造林后的生长成活影响很大.为了培育优质壮苗,进一步把杉木生产建设搞好,从1979年开始,公社在三级林场播种育苗5.9亩,据11月初调查,总产杉苗达36.1万株,亩产6120O株.其中苗高25～4O厘米、根径粗0.5—0.7厘米、径高比1:60的达64.7%;苗高40厘米以上、根径粗0.8厘米以上、径高比1:50的达5.9%.结顶芽的达
Lishui Xinqiao commune is located in the hilly mountains, mountainous area of about 26,680 acres, the development of the county fir more communes one of the few years ago, the commune to create the necessary fir seedlings, mostly from the field, seedlings after long-distance In order to cultivate high-quality seedlings, further improve the production and construction of Chinese fir, since 1979, the commune sowed 5.9 acres of nursery stock in three forest farms. According to the survey conducted in early November, The total fir seedlings up to 361,000 strains, 6120O mu per plant, of which the height of 25 ~ 4O cm, root diameter of 0.5-0.7 cm, diameter ratio of 1:60 reached 64.7%; height of 40 cm above the root diameter 0.8 cm above the diameter ratio of 1:50 up to 5.9%