（一）播种前准备工作1、选择良种良种是培育壮苗的基础，所用的种子必须采自经严格育种程序建立起来的种子园、采种母树林的优良种源/优良单株个体优树。并且经测定证明子代各方面性状表现优良方可用于培育壮苗造林。在“良种”的前提下施以“良法”，才可成功营造优质、高产 (A) Preparations before sowing 1, the choice of elite varieties of seedling is to cultivate the basis of the seed used must be taken from the seed plantation established by the strict breeding program, planting seed trees of good provenance / good individual trees. And it has been proved that all the traits of offspring can be used to cultivate strong seedling and afforestation. Under the prerequisite of “good seed”, we can successfully create high-quality and high-yield products by applying the “good law.”