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北方葡萄栽培,冬季防寒工作是决定葡萄能否过冬的关键技术。各地一般采用实埋防寒法,就是挖防寒沟后,将葡萄枝蔓放入填土埋严即可。而宣化果农现在多采用“空心埋土防寒法,效果很好,具体方法如下: 一、冬剪后,挖50～70厘米宽,40～70厘米深的放射形防寒沟,注意在靠近根茎处浅挖,以防伤根。二、将枝蔓轻轻拉入沟内,沟上横架木杆,再覆10厘米厚的玉米秸或高梁秸,最后分2～3次覆土20～30厘米,每次覆土不能太厚,随气温下降逐渐加厚埋土。最近几年,有果农用厚塑料布代替秸杆,可重复使用多年,效果很好。三、注意事项:1、取土不可离根太近,以防诱风伤根。2、
Northern viticulture, winter cold work is the key to determine whether the grapes overwintering. Generally used around the buried cold method is digging cold ditch, the vine vineyard can be buried into the filling. The Xuanhua fruit farmer now use ”hollow buried cold method, the effect is very good, as follows: First, after winter cut, dug 50 ~ 70 cm wide, 40 ~ 70 cm deep radial shaped cold ditch, pay attention to close to the roots Shallow dig in order to prevent injury root two, pull the branch vine gently into the ditch, ditch horizontal wood pole, and then covered with 10 cm thick corn stalks or sorghum straw, the last 2 to 3 times 20 to 30 cm soil cover , Each time the soil can not be too thick, with the temperature gradually thickening buried. In recent years, some farmers with thick plastic sheet instead of straw, can be reused for many years, the effect is very good. Third, pay attention: 1, Too close from the root, to prevent the wound root injury .2,