大棚育苗要“五细”张中社，赵俊侠，杨代海大棚育苗具有管理方便，出苗整齐，苗木质量高等优点。立枯病是针叶树育苗一种常见的病害。以下“五细”，可使该病的发病率由６０％左右降至８％，育苗质量大大提高。一、苗床整理细土壤是立枯病病原菌生存的母体．细致地做好苗... Greenhouse nursery to “five fine” Zhangzhongshe, Zhao Junxia, ​​Yang Daihai greenhouse nursery with convenient management, emergence and tidy, high quality nursery stock. Blight is a common disease of coniferous nursery. The following “five fine”, the incidence of the disease can be reduced from about 60% to 8%, nursery quality greatly improved. First, seedbed finishing fine soil is the mother of the damping-off pathogen survival. Make seedlings meticulously ...