种苗是植树造林的物质基础。随着全民义务植树运动迅速而广泛的开展,种苗问题更加尖锐起来。其数量的多寡会直接影响造林的进展,而其质量的优劣更会关系到造林的成效的,因此,能否培育出大批的优质壮苗,实为全民义务植树运动健康发展的一个关键。 Seedlings are the material basis for afforestation. With the rapid and widespread voluntary nationwide tree planting campaign, the issue of seedling is even more acute. The quantity and quantity of them will directly affect the progress of afforestation. The quality of the afforestation will have an impact on the afforestation effectiveness. Therefore, whether nurturing a large number of strong and strong seedlings is a key to the healthy development of voluntary nationwide afforestation.