葡萄防寒的时间,一般是进行完冬季修剪以后,土壤结冻前几天进行。防寒的主要方法有三种形式,即地上搭棚防寒、地上埋土防寒和地下棚架防寒(也叫棚窖防寒).一、地上搭棚防塞法是几年来葡萄栽培中的一项新的防寒方法.它的优点是,防寒效果好,不容易伤害葡萄的根系.具体做法是:在葡萄主蔓两侧距离主根70—80厘米处打 Cold grape time, usually after the winter pruning, soil freezing a few days before. There are three main ways to prevent cold, that is, the scaffolding on the ground cold, buried in the ground cold and scaffolding cold shelter (also called cold shelter.) First, the scaffolding on the ground is a grape cultivation in recent years, a new cold Method.Its advantage is that the cold effect is good, not easy to damage the root system of the grape.This is the specific way: the main vine on both sides of the main root from 70-80 cm