What does it mean to cut off the roots of the seedlings?

Bare root cutting is also called (bare root fixed stem) or (bare root bare stem). This is the term of seedling industry. The following is a detailed explanation:

Generally, customers who buy deciduous seedlings in spring will choose bare roots to dry, that is, there is no soil ball, and the seedlings at the head of the tree are removed.

Transplanting in this way can save the cost of raising soil balls. Please refer to:

Fixed airing can improve the survival rate of seedling transplanting, and bare roots must be fixed airing after seedling leaves are opened, otherwise the survival rate of seedling transplanting is very low. Because the roots of seedlings have no soil, and if there is a crown, the leaves will absorb the necessary water of trees, resulting in a large number of seedlings dying due to lack of water.

I hope this answer can help you! Hope to adopt!