Abstract:The preservation capacity of water and fertility of several soilless cultivation substrates for Panax quinquefolium was compared in a large area. The data indicate that vermiculite mixed with stud (volume 1:1) is the most suitable soilless substrata for P. quinquefolium, for it is loose and features good preservation of fertility, water retaining, drainage, and air permeability Timely analysis of nutrient contents in the substrates duriog cultivating period may serve as a guideline for correct application of fertilizer.