河津县苗圃于1975年引种水杉以来,都采用荫棚沙床扦插育苗,管理强度大,生产成本高。为了节省人力和遮荫材料,于1980年春,进行了水杉全光育苗试验。6月份调查成活率达到85%,8月份调查幼苗保存率仍达80%,苗木长势良好。一、整地作床苗圃地平坦,为河滩上的沙丘地,土壤为细沙壤土,前茬是白菜地,地下水位12米,有水源灌溉。1979年冬季用铁锹深翻,结合深翻整地,每亩施用圈肥7000斤作基 Hejin County Nursery Introduction of Metasequoia in 1975, have adopted Shade roof sand cutting seedlings, management strength, high production costs. In order to save manpower and shading materials, the spring nurturing of Metasequoia glyptostroboides was conducted in the spring of 1980. The survey survival rate in June reached 85%. In August, the surveyed seedling preservation rate still reached 80%, seedlings grew well. First, the site preparation for bed nursery flat, sand dune for the flood, the soil is fine sandy loam, former crop is cabbage, groundwater level of 12 meters, water irrigation. In the winter of 1979, deep shovel with shovels, combined with deep plowing, 7000 acres of circle fertilizer per mu basis