造林时苗木要经过起苗、包装、运输、假植等工序.每道工序都可能损伤苗木,直接影响成活率.现就保持苗木生命力技术有关措施做如下探讨.一、苗木根系的多少是鉴定苗木质量的重要指标出圃苗木的起苗方式不同,保存的根系状况有很大差别,直接影响到出圃苗木的质量(表1). Planting seedlings to go through the process of raising seedlings, packaging, transportation, fake plants and so on.Each process may damage seedlings, a direct impact on the survival rate.Now to maintain the vitality of seedlings technology to do the following discussion of the relevant measures. An important indicator of the quality of nursery stock nursery seedlings from different ways, the preservation of the root system is very different, directly affects the quality of nursery nursery stock (Table 1).