板栗属深根性树种，主根发达，俗称“胡萝卜根”。板栗育苗，特别是培育２～３ａ生大苗起苗困难，起苗过浅伤根过多，造林成活率低，起苗过深费工费时，且因根系过长造林不方便。在育苗实践中，我们摸索出“控制主根，增加侧根”的断胚根育苗方法，使栗苗从原来育苗产生的... Chestnut is a deep root tree species, the main root developed, commonly known as “carrot root.” Chestnut nursery, in particular, to cultivate 2 ~ 3a seedling seedling difficult, over-thick seedling too much root injury, afforestation survival rate is low, seedling too much time and labor costs, and because the root is too long afforestation inconvenient. In nursery practice, we find out “control of the main root, increase the lateral root” of the broken radicle nursery method, so that nursery seedlings from the original produce ...