良种壮苗是培育速生丰产林的物质基础。近年来,我省广大贫下中农在杉木育苗造林实践中积累了丰富的壮苗培育经验。现将有关方法整理介绍于后,供各地结合具体情况参考应用。一、杉木壮苗标准壮苗标准包含形态特征和生长指标两个方面。根据我省自然条件、杉种品质和生产 Strong seedling is to cultivate fast-growing high-yield forest material base. In recent years, the vast majority of poor peasants and middle peasants in our province have accumulated rich experience in nurturing seedlings in the practice of seedling raising and afforestation of Chinese fir. The method is now introduced after finishing for specific reference to the application. First, strong seedling standard fir seedling standards include morphological characteristics and growth indicators in two aspects. According to the natural conditions of our province, Shan quality and production