Selection of seedling location for root control container

Seedling root controlling container placed on a flat surface, such as cement, pavement, such as the ground for the bare soil in the ground pad a layer of stone or coarse carbon residue, the underground humidity often kept watering, conducive to root oxygen and moisture, root controlling container seedlings not long time on land, in order to avoid the root grows from the container into the ground and lost the root control effect.