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编辑同志:今年春季,我花40元钱买了20株巨峰和玫瑰香葡萄苗,栽在前院,长势很好。但不知如何防寒越冬,请予指导。沈阳市于洪区.田玉友田玉友同志:收到你来信的同时,又收到了几封内容近似的读者来信。下面请沈阳农学院园艺系讲师严大义同志介绍幼龄葡萄和成龄葡萄越冬防寒的技术措施。编者一、防寒时间秋季早霜出现后,葡萄叶片逐渐凋落。此时昼夜温差大,夜间气温低,1～3年生的葡萄树应及时下架,进行临时防寒。夜间在枝蔓上覆盖一薄
Edit Comrade: This spring, I spent 40 yuan to buy 20 Kyoho and rose grape seedlings planted in the front yard, growing well. But I do not know how to cold winter, please give guidance. Yu Hong District, Shenyang City. Tian Yu You, Tian Yuyou: At the same time that we received your letter, we received several letters from readers with similar contents. Here is a lecturer in Horticulture Department of Shenyang Agricultural College, Comrade Yan Dayi, introducing the technical measures of overwintering cold protection for young grapes and aged grapes. Editor First, cold early autumn frost appears, the grape leaves gradually litter. At this time the temperature difference between day and night, night temperatures are low, 1 to 3 years of grapevine should be timely shelves, temporary cold. Night covered with a thin stick on the vine