杉木全光育苗,是林业生产技术上的一项革新。安徽省肥西县苗圃的广大职工,在无产阶级文化大革命中,破除迷信,解放思想,自一九六七年以来,进行杉木全光育苗试验,至一九七○年获得成功,使育苗成本降低了50％以上。从一九七一至一九七四年在全县二十七个公社组织推广,每亩平均产苗六至八万株,当年苗八寸高、筷子粗,可出圃造林。他们的主要经验是:一、抓住两个死苗关。据观察,杉木全光育苗过程中有两个死苗关:第一、幼苗出土后约十天左右,茎、叶幼嫩,根系尚未形成,吸水能力极弱,此时虽为梅雨季 Fir seedling nursery, forestry production technology is an innovation. In the Feixi County Nursery in Anhui Province, the majority of workers and nurses in the Great Proletarian Cultural Revolution eradicated superstition and emancipated their minds. Since 1967, the experiment of fir seedling nursery has been successfully carried out until 1970, bringing the cost of nursery Reduced by more than 50%. From 1976 to 1974, it was promoted by 27 commune organizations in the county with an average of 60,000 to 80,000 seedlings per mu. In the same year, the seedling was eight-inch tall and the chopsticks were rough, which could be used for afforestation. Their main experience is: First, seize the two dead seedlings. It is observed that there are two dead shoots in the process of seedling nursery. There are two dead shoots in the process of whole seedling nursery: first, about ten days after the seedlings are excavated, the young stems and leaves are young, the roots are not yet formed, and the water absorption capacity is extremely weak.