In order to study the effects of fertilizer treatments on seedling growth and cold resistance of triploid Populus tomentosa , seedlings were treated with different fertilizing time and regime. The results show that fertilizing in autumn after height growth stop can help seedlings absorb N and P and increase cold resistance. Fertilizing in both early fast growing period and autumn can not only enhance seedling growth but also increase cold resistance. After evaluating by an integrated indicator, combined ...