苹果幼树的抽条与预防措施一、什么是抽条所谓抽条，是指冬末春初，气温迅速回升时，使树体枝条的蒸腾量增大，而土壤还没有完全解冻，根系吸收水份有限，不能满足地上部蒸腾的需求，致使枝条从一年生顶端向基部甚至主干失水枯死的现象。苹果幼树抽条，是我国北方大多果区... First, what is pumping Article so-called pumping, refers to the late winter and early spring, the temperature rose quickly, so that the transpiration of tree branches increased, while the soil has not completely thaw, the root absorb water Limited, can not meet the needs of transpiration above the ground, resulting in branches from the top of the annual to the base or even the main water loss dead phenomenon. Apple young tree pumping, is the majority of northern China fruit area ...