核桃幼树的安全越冬和防寒核桃幼树是否能安全越冬是决定核桃树健壮生长和幼树提前结果的关键。特别是新栽的幼树，由于种种原因根系吸肥吸水能力低、枝条组织发育不充实，加之核桃树枝干内部髓心较大，经过冬季严寒和早春温度的骤变，以及春风的侵袭，使枝条内部水分大量... Walnut saplings overwintering winter and cold walnut saplings can win the safe winter is the key to determining the robust growth of walnut trees and saplings early results. In particular, the newly planted saplings, due to various reasons, the root absorption of water absorption capacity is low, the branches of tissue development is not sufficient, combined with larger core of walnut tree trunk after winter cold and early spring temperature changes, and the invasion of the spring breeze, Large amount of water inside the branches ...